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BUSINESS SEGMENTS - Schedule of Net Sales by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Total	$ 188,353	$ 140,596	$ 520,487	$ 428,164
United States
Segment Reporting Information [Line Items]
Total	171,063	124,800	473,712	381,637
Exports From The United States \| Asia
Segment Reporting Information [Line Items]
Total	11,482	11,728	32,654	34,387
Exports From The United States \| Latin America
Segment Reporting Information [Line Items]
Total	2,026	1,462	4,616	4,121
Exports From The United States \| Canada
Segment Reporting Information [Line Items]
Total	3,416	2,282	8,586	7,404
Exports From The United States \| Europe
Segment Reporting Information [Line Items]
Total	0	35	37	60
Operations outside the United States \| Asia
Segment Reporting Information [Line Items]
Total	$ 366	$ 289	$ 882	$ 555

INCOME TAXES	9 Months Ended
INCOME TAXES	Sep. 30, 2025
Income Tax Disclosure [Abstract]
INCOME TAXES	8. INCOME TAXES Tredegar recorded tax expense (benefit) of $3.6 million on pre-tax income (loss) from continuing operations of $13.2 million in the first nine months of 2025. The effective tax rate in the first nine months of 2025 was 27.1% and 27.5% in the first nine months of 2024. The effective tax rate in the first nine months of 2025 and the first nine months of 2024 was impacted by taxable discrete items, including stock-based compensation. On July 4, 2025, new U.S. tax legislation was signed into law (known as the "One Big Beautiful Bill Act" or "OBBBA"), which makes permanent many of the tax provisions enacted in 2017 as part of the Tax Cuts and Jobs Act that were set to expire at the end of 2025. In addition, the OBBBA makes changes to certain U.S. corporate tax provisions, which have various effective dates. T

- Definition

The entire disclosure for income tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 740
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477617/942-740-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478822/944-740-50-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Section 50
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-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12

Reference 5: http://www.xbrl.org/2003/role/exampleRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12C

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Name Accounting Standards Codification
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12B

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477891/740-270-50-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
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Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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-Paragraph 1
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Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-14

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Name Accounting Standards Codification
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-21

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 17
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-17

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479360/740-10-S99-2

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482603/740-30-50-2

+ Details

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 13,291	$ 7,062
Accounts and other receivables, net	87,931	64,817
Income taxes recoverable	284	0
Inventories	62,006	51,381
Prepaid expenses and other	11,375	16,567
Total current assets	174,887	139,827
Property, plant and equipment, at cost	502,829	499,426
Less: accumulated depreciation	(372,432)	(362,394)
Net property, plant and equipment	130,397	137,032
Right-of-use leased assets	13,267	14,635
Identifiable intangible assets, net	6,008	7,326
Goodwill	22,446	22,446
Deferred income taxes	29,671	32,517
Other assets	2,130	2,448
Noncurrent assets of discontinued operations	0	126
Total assets	378,806	356,357
Current liabilities:
Accounts payable	79,247	64,704
Accrued expenses	22,801	22,168
Lease liability, short-term	2,345	2,453
Short-term debt	0	1,322
Income taxes payable	492	320
Current liabilities of discontinued operations	0	741
Total current liabilities	104,885	91,708
Lease liability, long-term	11,472	12,993
ABL revolving facility	49,500	60,600
Pension and other postretirement benefit obligations, net	5,772	5,914
Deferred income tax liabilities	69	69
Other non-current liabilities	4,917	4,105
Total liabilities	176,615	175,389
Shareholders’ equity:
Common stock, no par value (authorized shares 150,000,000, issued and outstanding 34,892,602 shares at September 30, 2025 and 34,661,272 shares at December 31, 2024)	65,299	63,590
Common stock held in trust for savings restoration plan (118,542 shares at September 30, 2025 and 118,543 shares at December 31, 2024)	(2,233)	(2,233)
Accumulated other comprehensive income (loss):
Foreign currency translation adjustment	5,334	5,105
Gain (loss) on derivative financial instruments	834	268
Pension and other postretirement benefit adjustments	639	826
Retained earnings	132,318	113,412
Total shareholders’ equity	202,191	180,968
Total liabilities and shareholders’ equity	$ 378,806	$ 356,357

DISCONTINUED OPERATIONS - Narrative (Details) - USD ($) $ in Thousands			3 Months Ended		9 Months Ended		12 Months Ended
	Feb. 28, 2025	Nov. 01, 2024	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Sep. 01, 2023
Discontinued Operations and Disposal Groups [Abstract]
Consideration								$ 116,000
Cash received		$ 60,000
Debt assumed		20,000		$ 20,000		$ 20,000
Cash retained by buyer		2,000
Working capital adjustments		20,500
Escrow funds		19,800
Projected withholding taxes		10,800
Transaction expenses		$ 4,400
Proceeds from the sale of Terphane	$ 9,800				$ 9,835	0
Pre-tax gain (loss)			$ 0	$ 0	$ 9,657	$ 0	$ (74,900)
Gains on derivative financial instruments							$ 102,300

Condensed Consolidated Balance Sheets (Parenthetical) - shares	Sep. 30, 2025	Dec. 31, 2024
Statement of Financial Position [Abstract]
Authorized shares (in shares)	150,000,000	150,000,000
Issued shares (in shares)	34,892,602	34,661,272
Outstanding shares (in shares)	34,892,602	34,661,272
Common stock shares held in trust for savings restoration plan (in shares)	118,542	118,543

BUSINESS SEGMENTS (Tables)

9 Months Ended

Sep. 30, 2025

Segment Reporting [Abstract]

Schedule of Segment Reporting Information by Segment

The following tables present segment revenue, segment profit (loss), and significant expenses for the three months ended September 30, 2025 and 2024:


	Three Months Ended September 30, 2025
(In thousands)	Aluminum Extrusions		PE Films		Total
Net Sales	$	162,470	$	25,883	$	188,353
Reconciliation of revenue:
Add back freight					6,589
Sales as shown in the consolidated statements of income (loss)					$	194,942
Less:
Variable costs	$	124,462	$	11,922	$	136,384

Manufacturing fixed costs1	11,906		3,785		15,691
Selling, general and administrative costs1	8,948		2,961		11,909
Other2	346		(6)		340
EBITDA from ongoing operations	$	16,808	$	7,221	$	24,029
Reconciliation of profit (loss):
Depreciation and amortization					5,414
Plant shutdowns, asset impairments, restructurings and other					915
Interest income					6
Interest expense					768
Corporate expenses, net3					7,815
Income (loss) from continuing operations before income tax					9,123
Income tax expense (benefit)					2,014
Net income (loss) from continuing operations					7,109
Income (loss) from discontinued operations, net of tax					(35)
Net income (loss)					$	7,074
1. Excludes related depreciation and amortization. 2. Includes segment allocated employee compensation benefit expenses. 3. Includes corporate depreciation and amortization.


	Three Months Ended September 30, 2024
(In thousands)	Aluminum Extrusions		PE Films		Total
Net Sales	$	115,717	$	24,879	$	140,596
Reconciliation of revenue:
Add back freight					5,468
Sales as shown in the consolidated statements of income (loss)					$	146,064
Less:
Variable costs	$	90,397	$	12,294	$	102,691

Manufacturing fixed costs1	10,218		3,496		13,714
Selling, general and administrative costs1	8,549		3,173		11,722
Other2	376		40		416
EBITDA from ongoing operations	$	6,177	$	5,876	$	12,053
Reconciliation of profit (loss):
Depreciation and amortization					5,703
Plant shutdowns, asset impairments, restructurings and other					2,170
Interest income					5
Interest expense					1,192
Gain on investment in kaleo, Inc.					—
Corporate expenses, net3					5,554
Income (loss) from continuing operations before income tax					(2,561)
Income tax expense (benefit)					828
Net income (loss) from continuing operations					(3,389)
Income (loss) from discontinued operations, net of tax					(557)
Net income (loss)					$	(3,946)
1. Excludes related depreciation and amortization. 2. Includes segment allocated employee compensation benefit expenses. 3. Includes corporate depreciation and amortization.

The following tables present segment revenue, segment profit (loss), and significant expenses for the nine months ended September 30, 2025 and 2024:


	Nine Months Ended September 30, 2025
(In thousands)	Aluminum Extrusions		PE Films		Total
Net Sales	$	444,470	$	76,017	$	520,487
Reconciliation of revenue:
Add back freight					18,309
Sales as shown in the consolidated statements of income (loss)					$	538,796
Less:
Variable costs	$	344,043	$	35,586	$	379,629

Manufacturing fixed costs1	34,879		10,487		45,366
Selling, general and administrative costs1	28,489		8,420		36,909
Other2	1,808		70		1,878
EBITDA from ongoing operations	$	35,251	$	21,454	$	56,705
Reconciliation of profit (loss):
Depreciation and amortization					16,214
Plant shutdowns, asset impairments, restructurings and other					2,138
Interest income					16
Interest expense					3,566
Corporate expenses, net3					21,619
Income (loss) from continuing operations before income tax					13,184
Income tax expense (benefit)					3,575
Net income (loss) from continuing operations					9,609
Income (loss) from discontinued operations, net of tax					9,297
Net income (loss)					$	18,906
1. Excludes related depreciation and amortization. 2. Includes segment allocated employee compensation benefit expenses. 3. Includes corporate depreciation and amortization.


	Nine Months Ended September 30, 2024
(In thousands)	Aluminum Extrusions		PE Films		Total
Net Sales	$	349,353	$	78,811	$	428,164
Reconciliation of revenue:
Add back freight					15,812
Sales as shown in the consolidated statements of income (loss)					$	443,976
Less:
Variable costs	$	263,007	$	37,522	$	300,529

Manufacturing fixed costs1	29,726		9,832		39,558
Selling, general and administrative costs1	24,319		8,480		32,799
Other2	677		64		741
EBITDA from ongoing operations	$	31,624	$	22,913	$	54,537
Reconciliation of profit (loss):
Depreciation and amortization					17,336
Plant shutdowns, asset impairments, restructurings and other					5,570
Interest income					30
Interest expense					3,515
Gain on investment in kaleo, Inc.					144
Corporate expenses, net3					16,730
Income (loss) from continuing operations before income tax					11,560
Income tax expense (benefit)					3,175
Net income (loss) from continuing operations					8,385
Income (loss) from discontinued operations, net of tax					(251)
Net income (loss)					$	8,134
1. Excludes related depreciation and amortization. 2. Includes segment allocated employee compensation benefit expenses. 3. Includes corporate depreciation and amortization.

Schedule of Identifiable Assets

The following table presents identifiable assets by segment at September 30, 2025 and December 31, 2024:


(In thousands)	September 30, 2025		December 31, 2024
Aluminum Extrusions	$	269,664	$	247,205
PE Films	54,694		55,081
Subtotal	324,358		302,286
General corporate	41,157		46,883
Cash and cash equivalents	13,291		7,062
Discontinued operations	—		126
Total	$	378,806	$	356,357

Schedule of Depreciation and Amortization, Capital Expenditures

The following table presents depreciation and amortization for the three and nine months ended September 30, 2025 and 2024:


	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Aluminum Extrusions	$	4,190	$	4,404	$	12,509	$	13,392
PE Films	1,224		1,299		3,705		3,944
Subtotal	5,414		5,703		16,214		17,336
General corporate	48		66		146		255
Discontinued operations	—		708		—		2,191
Total	$	5,462	$	6,477	$	16,360	$	19,782

The following table presents capital expenditures for the three and nine months ended September 30, 2025 and 2024:


	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Aluminum Extrusions	$	3,079	$	1,449	$	7,835	$	4,461
PE Films	529		517		1,411		1,127
Subtotal	3,608		1,966		9,246		5,588
Discontinued operations	—		948		—		2,108
Total	$	3,608	$	2,914	$	9,246	$	7,696

Schedule of Net Sales by Geographic Area

The following tables disaggregate the Company’s revenue by geographic area and product group for the three and nine months ended September 30, 2025 and 2024:


Net Sales by Geographic Area (a)
	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
United States	$	171,063	$	124,800	$	473,712	$	381,637
Exports from the United States to:
Asia	11,482		11,728		32,654		34,387
Latin America	2,026		1,462		4,616		4,121
Canada	3,416		2,282		8,586		7,404
Europe	—		35		37		60
Operations outside the United States:
Asia	366		289		882		555
Total	$	188,353	$	140,596	$	520,487	$	428,164
(a) Export sales relate mostly to PE Films.

Schedule of Net Sales by Product Group


Net Sales by Product Group
	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Aluminum Extrusions:
Nonresidential building & construction	$	87,388	$	63,362	$	236,612	$	200,978
Consumer durables	13,297		8,210		37,715		24,440
Automotive	10,832		10,583		32,899		30,487
Residential building & construction	11,516		9,368		30,539		26,440
Electrical	14,429		8,541		42,292		21,075
Machinery & equipment	17,662		12,564		48,943		36,434
Distribution	7,346		3,089		15,470		9,499
Subtotal	162,470		115,717		444,470		349,353
PE Films:
Surface protection films	19,163		17,516		54,675		56,241
Overwrap packaging	6,720		7,363		21,342		22,570
Subtotal	25,883		24,879		76,017		78,811
Total	$	188,353	$	140,596	$	520,487	$	428,164

EARNINGS PER SHARE - Schedule of Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share [Abstract]
Weighted average shares outstanding used to compute basic earnings per share	34,773	34,391	34,721	34,364
Incremental dilutive shares attributable to stock options and restricted stock	0	0	0	0
Shares used to compute diluted earnings per share	34,773	34,391	34,721	34,364

BUSINESS SEGMENTS - Schedule of Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenue from External Customer [Line Items]
Net Sales	$ 188,353	$ 140,596	$ 520,487	$ 428,164
Sales	194,942	146,064	538,796	443,976
Plant shutdowns, asset impairments, restructurings and other	915	2,170	2,138	5,570
Interest income	6	5	16	30
Interest expense	768	1,192	3,566	3,515
Gain on investment in kaléo			0	144
Corporate expenses, net	7,815	5,554	21,619	16,730
Income (loss) from continuing operations before income taxes	9,123	(2,561)	13,184	11,560
Income tax expense (benefit)	2,014	828	3,575	3,175
Net income (loss) from continuing operations	7,109	(3,389)	9,609	8,385
Income (loss) from discontinued operations, net of tax	(35)	(557)	9,297	(251)
Net income (loss)	7,074	(3,946)	18,906	8,134
kaleo [Member]
Revenue from External Customer [Line Items]
Gain on investment in kaléo		0		144
Aluminum Extrusions
Revenue from External Customer [Line Items]
Net Sales	162,470	115,717	444,470	349,353
Variable costs	124,462	90,397	344,043	263,007
Manufacturing fixed costs	11,906	10,218	34,879	29,726
Selling, general and administrative costs	8,948	8,549	28,489	24,319
Other	346	376	1,808	677
EBITDA from ongoing operations	16,808	6,177	35,251	31,624
PE Films
Revenue from External Customer [Line Items]
Net Sales	25,883	24,879	76,017	78,811
Variable costs	11,922	12,294	35,586	37,522
Manufacturing fixed costs	3,785	3,496	10,487	9,832
Selling, general and administrative costs	2,961	3,173	8,420	8,480
Other	(6)	40	70	64
EBITDA from ongoing operations	7,221	5,876	21,454	22,913
Subtotal
Revenue from External Customer [Line Items]
Variable costs	136,384	102,691	379,629	300,529
Manufacturing fixed costs	15,691	13,714	45,366	39,558
Selling, general and administrative costs	11,909	11,722	36,909	32,799
Other	340	416	1,878	741
EBITDA from ongoing operations	24,029	12,053	56,705	54,537
Depreciation and amortization	5,414	5,703	16,214	17,336
Freight
Revenue from External Customer [Line Items]
Add back freight	$ 6,589	$ 5,468	$ 18,309	$ 15,812

ACCOUNTS AND OTHER RECEIVABLES

9 Months Ended

Sep. 30, 2025

Receivables [Abstract]

ACCOUNTS AND OTHER RECEIVABLES

2. ACCOUNTS AND OTHER RECEIVABLES

As of September 30, 2025 and December 31, 2024, accounts and other receivables, net include the following:


(In thousands)	September 30, 2025		December 31, 2024
Customer receivables	$	86,892	$	64,094
Other receivables	1,332		952
Total accounts and other receivables	88,224		65,046
Less: Allowance for bad debts	(293)		(229)
Total accounts and other receivables, net	$	87,931	$	64,817

INVENTORIES (Schedule Of Components Of Inventories) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Inventory, Net [Abstract]
Finished goods	$ 15,063	$ 15,051
Work-in-process	4,389	2,986
Raw materials	18,842	12,158
Stores, supplies and other	23,712	21,186
Inventories	$ 62,006	$ 51,381

DISCONTINUED OPERATIONS

9 Months Ended

Sep. 30, 2025

Discontinued Operations and Disposal Groups [Abstract]

DISCONTINUED OPERATIONS

11. DISCONTINUED OPERATIONS

Flexible Packaging Films

In September 2023, the Company entered into an agreement to sell Terphane, headquartered in Brazil, to Oben for net cash-free and debt-free base consideration of $116 million.

On November 1, 2024, Tredegar completed the sale of Terphane to Oben. At closing, Tredegar received $60 million in cash, which was net of Terphane debt assumed by Oben of $20 million and estimated Terphane cash retained by Oben of $2 million. The cash proceeds received by Tredegar at closing were after deducting net working capital adjustments and closing indebtedness ($20.5 million), escrow funds ($19.8 million), projected Brazil withholding taxes ($10.8 million), and transaction expenses ($4.4 million). In February 2025, the Company received $9.8 million from post-closing settlement of the transaction. The proceeds from the sale of Terphane were required to be used to pay down debt outstanding under the ABL Facility.

Upon completion of the sale, the Company recognized a pre-tax loss of $74.9 million for the year ended December 31, 2024, which included the realization of other comprehensive losses on foreign currency translation adjustments, net of gains on derivative financial instruments of $102.3 million previously reflected in accumulated other comprehensive income (loss).

The following table summarizes the financial results of discontinued operations reflected in the Condensed Consolidated Statements of Income (Loss) for the three and nine months ended September 30, 2025 and 2024:


	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Revenue and other items
Sales	$	—	$	35,987	$	—	$	104,046
Other income (expense), net	—		3		—		6
	—		35,990		—		104,052
Costs and expenses
Cost of goods sold	—		29,204		—		85,793
Freight	—		1,618		—		5,021
Selling, general and administrative	35		3,121		360		5,651
Research and development	—		174		—		570
Amortization of intangibles	—		23		—		71
Interest expense1	—		2,288		—		6,799
(Gain) loss on sale of business	—		—		(9,657)		—
Total	35		36,428		(9,297)		103,905
Income (loss) from discontinued operations before income tax	(35)		(438)		9,297		147
Income tax expense (benefit)2	—		119		—		398
Income (loss) from discontinued operations, net of tax	$	(35)	$	(557)	$	9,297	$	(251)
1.For the three and nine months ended September 30, 2024, interest expense includes $0.6 million and $1.8 million, respectively, directly related to the $20 million of outstanding Terphane debt assumed by Oben. 2.An inconsequential income tax expense (benefit) was recognized during the three and nine months ended September 30, 2025, primarily due to foreign tax credits generated from the final Brazilian withholding tax payment made during the periods, which offset the tax liability on the income from discontinued operations.

Interest expense allocated to discontinued operations was determined by applying the ABL Facility weighted-average interest rate to the Terphane sale proceeds, as the sale proceeds were required to be used to pay down debt outstanding under the ABL Facility.

The assets and liabilities of the discontinued operations reflected in the Condensed Consolidated Balance Sheets as of September 30, 2025 and December 31, 2024, respectively, were as follows:


(In thousands)	September 30, 2025		December 31, 2024
Assets
Deferred income taxes	$	—	$	126
Total noncurrent assets of discontinued operations	$	—	$	126

Liabilities1
Accounts payable	$	—	$	161
Accrued expenses	—		580
Total current liabilities of discontinued operations	$	—	$	741
1.The consolidated balance sheet of discontinued operations as of December 31, 2024 includes $0.6 million of severance and $0.2 million of miscellaneous accrued expenses.

The following table provides significant operating, investing and financing cash flow information for discontinued operations:


	Nine Months Ended September 30,
(In thousands)	2025		2024
Operating activities:
Depreciation and amortization	$	—	$	2,191
Gain on the sale of divested business	(9,657)		—
Total	$	(9,657)	$	2,191
Investing activities:
Proceeds from the sale of Terphane	$	9,835	$	—
Capital expenditures	—		2,108
Total	$	9,835	$	2,108

BUSINESS SEGMENTS

9 Months Ended

Sep. 30, 2025

Segment Reporting [Abstract]

BUSINESS SEGMENTS

9. BUSINESS SEGMENTS

The Company's business segments are Aluminum Extrusions and PE Films. Aluminum Extrusions, also referred to as Bonnell Aluminum, produces high-quality, soft and medium strength alloyed aluminum extrusions, custom fabricated and finished, for the building and construction, automotive and transportation, consumer durables goods, machinery and equipment, electrical and renewable energy, and distribution markets. PE Films produces surface protection films, polyethylene overwrap films and films for other markets.

The Company’s reportable segments are based on its method of internal reporting, which is generally segregated by differences in products. Accounting standards for presentation of segments require an approach based on the way the Company organizes the segments for making operating decisions and how the chief operating decision maker (“CODM”) assesses performance. EBITDA from ongoing operations is the key profitability measure used by the CODM (Tredegar’s President and Chief Executive Officer) for purposes of assessing financial performance.

EBITDA from ongoing operations used by the CODM excludes certain non-recurring items, such as restructuring costs, asset impairments and other items, which are reported separately. The CODM uses EBITDA from ongoing operations to evaluate the operating performance of Tredegar’s ongoing operations, monitor budget versus actual results, establish management’s compensation and allocate resources. EBITDA from ongoing operations is the primary measure of segment performance and is consistent with how the business is managed internally, in addition to being a key financial and analytic metric for borrowing capacity and estimated enterprise value.

The Company uses sales less freight (“net sales”) as its measure of revenues from external customers at the segment level. This measure is separately included in the financial information regularly provided to the CODM.

The following tables present segment revenue, segment profit (loss), and significant expenses for the three months ended September 30, 2025 and 2024:


	Three Months Ended September 30, 2025
(In thousands)	Aluminum Extrusions		PE Films		Total
Net Sales	$	162,470	$	25,883	$	188,353
Reconciliation of revenue:
Add back freight					6,589
Sales as shown in the consolidated statements of income (loss)					$	194,942
Less:
Variable costs	$	124,462	$	11,922	$	136,384

Manufacturing fixed costs1	11,906		3,785		15,691
Selling, general and administrative costs1	8,948		2,961		11,909
Other2	346		(6)		340
EBITDA from ongoing operations	$	16,808	$	7,221	$	24,029
Reconciliation of profit (loss):
Depreciation and amortization					5,414
Plant shutdowns, asset impairments, restructurings and other					915
Interest income					6
Interest expense					768
Corporate expenses, net3					7,815
Income (loss) from continuing operations before income tax					9,123
Income tax expense (benefit)					2,014
Net income (loss) from continuing operations					7,109
Income (loss) from discontinued operations, net of tax					(35)
Net income (loss)					$	7,074
1. Excludes related depreciation and amortization. 2. Includes segment allocated employee compensation benefit expenses. 3. Includes corporate depreciation and amortization.


	Three Months Ended September 30, 2024
(In thousands)	Aluminum Extrusions		PE Films		Total
Net Sales	$	115,717	$	24,879	$	140,596
Reconciliation of revenue:
Add back freight					5,468
Sales as shown in the consolidated statements of income (loss)					$	146,064
Less:
Variable costs	$	90,397	$	12,294	$	102,691

Manufacturing fixed costs1	10,218		3,496		13,714
Selling, general and administrative costs1	8,549		3,173		11,722
Other2	376		40		416
EBITDA from ongoing operations	$	6,177	$	5,876	$	12,053
Reconciliation of profit (loss):
Depreciation and amortization					5,703
Plant shutdowns, asset impairments, restructurings and other					2,170
Interest income					5
Interest expense					1,192
Gain on investment in kaleo, Inc.					—
Corporate expenses, net3					5,554
Income (loss) from continuing operations before income tax					(2,561)
Income tax expense (benefit)					828
Net income (loss) from continuing operations					(3,389)
Income (loss) from discontinued operations, net of tax					(557)
Net income (loss)					$	(3,946)
1. Excludes related depreciation and amortization. 2. Includes segment allocated employee compensation benefit expenses. 3. Includes corporate depreciation and amortization.

The following tables present segment revenue, segment profit (loss), and significant expenses for the nine months ended September 30, 2025 and 2024:


	Nine Months Ended September 30, 2025
(In thousands)	Aluminum Extrusions		PE Films		Total
Net Sales	$	444,470	$	76,017	$	520,487
Reconciliation of revenue:
Add back freight					18,309
Sales as shown in the consolidated statements of income (loss)					$	538,796
Less:
Variable costs	$	344,043	$	35,586	$	379,629

Manufacturing fixed costs1	34,879		10,487		45,366
Selling, general and administrative costs1	28,489		8,420		36,909
Other2	1,808		70		1,878
EBITDA from ongoing operations	$	35,251	$	21,454	$	56,705
Reconciliation of profit (loss):
Depreciation and amortization					16,214
Plant shutdowns, asset impairments, restructurings and other					2,138
Interest income					16
Interest expense					3,566
Corporate expenses, net3					21,619
Income (loss) from continuing operations before income tax					13,184
Income tax expense (benefit)					3,575
Net income (loss) from continuing operations					9,609
Income (loss) from discontinued operations, net of tax					9,297
Net income (loss)					$	18,906
1. Excludes related depreciation and amortization. 2. Includes segment allocated employee compensation benefit expenses. 3. Includes corporate depreciation and amortization.


	Nine Months Ended September 30, 2024
(In thousands)	Aluminum Extrusions		PE Films		Total
Net Sales	$	349,353	$	78,811	$	428,164
Reconciliation of revenue:
Add back freight					15,812
Sales as shown in the consolidated statements of income (loss)					$	443,976
Less:
Variable costs	$	263,007	$	37,522	$	300,529

Manufacturing fixed costs1	29,726		9,832		39,558
Selling, general and administrative costs1	24,319		8,480		32,799
Other2	677		64		741
EBITDA from ongoing operations	$	31,624	$	22,913	$	54,537
Reconciliation of profit (loss):
Depreciation and amortization					17,336
Plant shutdowns, asset impairments, restructurings and other					5,570
Interest income					30
Interest expense					3,515
Gain on investment in kaleo, Inc.					144
Corporate expenses, net3					16,730
Income (loss) from continuing operations before income tax					11,560
Income tax expense (benefit)					3,175
Net income (loss) from continuing operations					8,385
Income (loss) from discontinued operations, net of tax					(251)
Net income (loss)					$	8,134
1. Excludes related depreciation and amortization. 2. Includes segment allocated employee compensation benefit expenses. 3. Includes corporate depreciation and amortization.

The following table presents identifiable assets by segment at September 30, 2025 and December 31, 2024:


(In thousands)	September 30, 2025		December 31, 2024
Aluminum Extrusions	$	269,664	$	247,205
PE Films	54,694		55,081
Subtotal	324,358		302,286
General corporate	41,157		46,883
Cash and cash equivalents	13,291		7,062
Discontinued operations	—		126
Total	$	378,806	$	356,357

The following table presents depreciation and amortization for the three and nine months ended September 30, 2025 and 2024:


	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Aluminum Extrusions	$	4,190	$	4,404	$	12,509	$	13,392
PE Films	1,224		1,299		3,705		3,944
Subtotal	5,414		5,703		16,214		17,336
General corporate	48		66		146		255
Discontinued operations	—		708		—		2,191
Total	$	5,462	$	6,477	$	16,360	$	19,782

The following table presents capital expenditures for the three and nine months ended September 30, 2025 and 2024:


	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Aluminum Extrusions	$	3,079	$	1,449	$	7,835	$	4,461
PE Films	529		517		1,411		1,127
Subtotal	3,608		1,966		9,246		5,588
Discontinued operations	—		948		—		2,108
Total	$	3,608	$	2,914	$	9,246	$	7,696

The following tables disaggregate the Company’s revenue by geographic area and product group for the three and nine months ended September 30, 2025 and 2024:


Net Sales by Geographic Area (a)
	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
United States	$	171,063	$	124,800	$	473,712	$	381,637
Exports from the United States to:
Asia	11,482		11,728		32,654		34,387
Latin America	2,026		1,462		4,616		4,121
Canada	3,416		2,282		8,586		7,404
Europe	—		35		37		60
Operations outside the United States:
Asia	366		289		882		555
Total	$	188,353	$	140,596	$	520,487	$	428,164
(a) Export sales relate mostly to PE Films.

The Company’s facilities in Pottsville, PA (“PV”) and Guangzhou, China (“GZ”) have a tolling arrangement whereby certain surface protection films are manufactured in GZ for a fee with raw materials supplied from PV that are then shipped by GZ directly to customers principally in the Asian market, but paid by customers directly to PV. Amounts associated with this intercompany tolling arrangement are reported in the table above as export sales from the U.S. to Asia, and include net sales of $6.7 million and $6.5 million in the third quarter of 2025 and 2024, respectively, and $19.7 million and $19.1 million in the first nine months of 2025 and 2024, respectively.


Net Sales by Product Group
	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Aluminum Extrusions:
Nonresidential building & construction	$	87,388	$	63,362	$	236,612	$	200,978
Consumer durables	13,297		8,210		37,715		24,440
Automotive	10,832		10,583		32,899		30,487
Residential building & construction	11,516		9,368		30,539		26,440
Electrical	14,429		8,541		42,292		21,075
Machinery & equipment	17,662		12,564		48,943		36,434
Distribution	7,346		3,089		15,470		9,499
Subtotal	162,470		115,717		444,470		349,353
PE Films:
Surface protection films	19,163		17,516		54,675		56,241
Overwrap packaging	6,720		7,363		21,342		22,570
Subtotal	25,883		24,879		76,017		78,811
Total	$	188,353	$	140,596	$	520,487	$	428,164

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

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+ Details

DISCONTINUED OPERATIONS - Summary of Significant Operating, Investing, and Financing Cash Flow Information (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Feb. 28, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Operating activities:
Depreciation and amortization		$ 0	$ 708	$ 0	$ 2,191
Gain on the sale of divested business		0	0	(9,657)	0	$ 74,900
Total				(9,657)	2,191
Investing activities:
Proceeds from the sale of Terphane	$ 9,800			9,835	0
Discontinued operations		$ 0	$ 948	0	2,108
Total				$ 9,835	$ 2,108

DEBT - Schedule of Pricing Under the ABL Facility (Details)	9 Months Ended
	Sep. 30, 2025
> 66% of $125 million aggregate commitment
Line of Credit Facility [Line Items]
Term Benchmark Spread	1.75%
ABR Spread	0.00750
≤ 66% but > 33% of $125 million aggregate commitment
Line of Credit Facility [Line Items]
Term Benchmark Spread	2.00%
ABR Spread	0.01000
≤ 33% of $125 million aggregate commitment
Line of Credit Facility [Line Items]
Term Benchmark Spread	2.25%
ABR Spread	0.01250

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 194,106	$ 159,964	$ 180,968	$ 155,653
Other comprehensive income (loss)	983	1,762	1,430	(7,641)
Income tax (expense) benefit	(185)	(45)	(270)	741
Other comprehensive income (loss), net of tax	798	1,717	1,160	(6,900)
Reclassification adjustment to net income (loss)	(676)	247	(723)	115
Income tax (expense) benefit	151	(72)	171	21
Reclassification adjustment to net income (loss), net of tax	(525)	175	(552)	136
Other comprehensive income (loss)	273	1,892	608	(6,764)
Ending Balance	202,191	158,448	202,191	158,448
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	6,534	(90,353)	6,199	(81,697)
Ending Balance	6,807	(88,461)	6,807	(88,461)
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	5,180	(90,273)	5,105	(83,037)
Other comprehensive income (loss)	154	1,500	229	(6,206)
Income tax (expense) benefit	0	(4)	0	466
Other comprehensive income (loss), net of tax	154	1,496	229	(5,740)
Reclassification adjustment to net income (loss)	0	0	0	0
Income tax (expense) benefit	0	0	0	0
Reclassification adjustment to net income (loss), net of tax	0	0	0	0
Other comprehensive income (loss)	154	1,496	229	(5,740)
Ending Balance	5,334	(88,777)	5,334	(88,777)
Gain (Loss) on Derivative Financial Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	666	(564)	268	801
Other comprehensive income (loss)	829	262	1,201	(1,435)
Income tax (expense) benefit	(185)	(41)	(270)	275
Other comprehensive income (loss), net of tax	644	221	931	(1,160)
Reclassification adjustment to net income (loss)	(613)	281	(484)	220
Income tax (expense) benefit	137	(79)	119	(2)
Reclassification adjustment to net income (loss), net of tax	(476)	202	(365)	218
Other comprehensive income (loss)	168	423	566	(942)
Ending Balance	834	(141)	834	(141)
Pension & Other Postretirement Benefit Adjust
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	688	484	826	539
Other comprehensive income (loss)	0	0	0	0
Income tax (expense) benefit	0	0	0	0
Other comprehensive income (loss), net of tax	0	0	0	0
Reclassification adjustment to net income (loss)	(63)	(34)	(239)	(105)
Income tax (expense) benefit	14	7	52	23
Reclassification adjustment to net income (loss), net of tax	(49)	(27)	(187)	(82)
Other comprehensive income (loss)	(49)	(27)	(187)	(82)
Ending Balance	$ 639	$ 457	$ 639	$ 457

BUSINESS SEGMENTS - Schedule of Identifiable Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Revenue from External Customer [Line Items]
Total	$ 378,806	$ 356,357
Discontinued operations	0	126
Operating Segments
Revenue from External Customer [Line Items]
Total	378,806	356,357
Cash and cash equivalents	13,291	7,062
Aluminum Extrusions \| Operating Segments
Revenue from External Customer [Line Items]
Total	269,664	247,205
PE Films \| Operating Segments
Revenue from External Customer [Line Items]
Total	54,694	55,081
Subtotal \| Operating Segments
Revenue from External Customer [Line Items]
Total	324,358	302,286
General corporate \| Operating Segments
Revenue from External Customer [Line Items]
Total	$ 41,157	$ 46,883

- Definition

Amount of asset recognized for present right to economic benefit.

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+ Details

EARNINGS PER SHARE (Narrative) (Details) - shares	3 Months Ended		9 Months Ended
EARNINGS PER SHARE (Narrative) (Details) - shares	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share [Abstract]
Shares attributable to stock options and restricted stock (in shares)	1,205,105	2,353,905	1,258,787	2,550,542

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Basis Of Presentation [Abstract]
Cash and cash equivalent period decrease	$ 3.6

DISCONTINUED OPERATIONS - Summary of Financial Results of Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Nov. 01, 2024
Discontinued Operations and Disposal Groups [Abstract]
Sales	$ 0	$ 35,987	$ 0	$ 104,046
Other income (expense), net	0	3	0	6
Revenues and other items	0	35,990	0	104,052
Cost of goods sold	0	29,204	0	85,793
Freight	0	1,618	0	5,021
Selling, general and administrative	35	3,121	360	5,651
Research and development	0	174	0	570
Amortization of intangibles	0	23	0	71
Interest expense	0	2,288	0	6,799
(Gain) loss on sale of business	0	0	(9,657)	0	$ 74,900
Total	35	36,428	(9,297)	103,905
Income (loss) from discontinued operations before income tax	(35)	(438)	9,297	147
Income tax expense (benefit)	0	119	0	398
Income (loss) from discontinued operations, net of tax	$ (35)	(557)	$ 9,297	(251)
Interest expense		600		1,800
Debt assumed		$ 20,000		$ 20,000		$ 20,000

Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Unrealized foreign currency translation adjustment, tax	$ 0	$ 4	$ 0	$ (466)
Derivative financial instruments adjustment, tax benefit	48	120	151	(273)
Amortization of prior service costs and net gains or losses, tax benefit	$ 14	$ 7	$ (52)	$ (23)

Condensed Consolidated Statements of Shareholders’ Equity - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Trust for Savings Restoration Plan	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2023	$ 155,653	$ 61,606	$ 177,977	$ (2,233)	$ (81,697)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	8,134		8,134
Foreign currency translation adjustment	(5,740)				(5,740)
Derivative financial instruments adjustment	(942)				(942)
Amortization of prior service costs and net gains or losses	(82)				(82)
Stock-based compensation expense	1,651	1,651
Repurchase of employee common stock for tax withholdings	(226)	(226)
Ending Balance at Sep. 30, 2024	158,448	63,031	186,111	(2,233)	(88,461)
Beginning Balance at Jun. 30, 2024	159,964	62,493	190,057	(2,233)	(90,353)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(3,946)		(3,946)
Foreign currency translation adjustment	1,496				1,496
Derivative financial instruments adjustment	423				423
Amortization of prior service costs and net gains or losses	(27)				(27)
Stock-based compensation expense	538	538
Ending Balance at Sep. 30, 2024	158,448	63,031	186,111	(2,233)	(88,461)
Beginning Balance at Dec. 31, 2024	180,968	63,590	113,412	(2,233)	6,199
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	18,906		18,906
Foreign currency translation adjustment	229				229
Derivative financial instruments adjustment	566				566
Amortization of prior service costs and net gains or losses	(187)				(187)
Stock-based compensation expense	2,298	2,298
Repurchase of employee common stock for tax withholdings	(589)	(589)
Ending Balance at Sep. 30, 2025	202,191	65,299	132,318	(2,233)	6,807
Beginning Balance at Jun. 30, 2025	194,106	64,561	125,244	(2,233)	6,534
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	7,074		7,074
Foreign currency translation adjustment	154				154
Derivative financial instruments adjustment	168				168
Amortization of prior service costs and net gains or losses	(49)				(49)
Stock-based compensation expense	738	738
Ending Balance at Sep. 30, 2025	$ 202,191	$ 65,299	$ 132,318	$ (2,233)	$ 6,807

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References + Details

- Definition

Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.

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+ Details

DEBT (Tables)

9 Months Ended

Sep. 30, 2025

Debt Disclosure [Abstract]

Schedule of Pricing Under the ABL Facility


Pricing under the ABL Facility (Basis Points)
Quarter Average of Daily Availability	Term Benchmark Spread	ABR Spread
> 66% of $125 million aggregate commitment	175.0	75.0
≤ 66% but > 33% of $125 million aggregate commitment	200.0	100.0
≤ 33% of $125 million aggregate commitment	225.0	125.0

PENSION AND OTHER POSTRETIREMENT BENEFITS - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	Oct. 31, 2025	Dec. 31, 2023	Sep. 30, 2025	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Pension settlement loss		$ 92.3
Other Post Retirement Benefits Total Obligation			$ 5.0
Unrecognized Pre-tax Actuarial Gain on Other Post Retirement Benefits			1.3
Pension and other postretirement liabilities			6.4	$ 6.6
Subsequent Event
Defined Benefit Plan Disclosure [Line Items]
Prefunding of Other Post Retirement Benefitst	$ 0.1
Accrued expenses
Defined Benefit Plan Disclosure [Line Items]
Pension and other postretirement liabilities included in "Accrued expenses"			$ 0.6	$ 0.6

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	9 Months Ended
	Sep. 30, 2025
Basis Of Presentation [Abstract]
Accounting standards not yet adopted	Accounting standards not yet adopted In October 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-06 to amend various paragraphs in the Accounting Standards Codification ("ASC") to primarily reflect the issuance of U.S. Securities and Exchange Commission ("SEC") Staff Bulletin No. 33-10532. ASU 2023-06 will impact various disclosure areas, including the statement of cash flows, accounting changes and error corrections, earnings per share, debt, equity, derivatives, and transfers of financial assets. The amendments in this ASU 2023-06 will be effective on the date the related disclosures are removed from Regulation S-X or Regulation S-K by the SEC and will no longer be effective if the SEC has not removed the applicable disclosure requirement by June 30, 2027. Early adoption is not permitted. The Company does not expect a material impact from the adoption of this standard on our consolidated financial statements and related disclosures. In December 2023, the FASB issued ASU 2023-09 to improve the income tax disclosures related to the rate reconciliation and income taxes paid information and to improve the effectiveness of income tax disclosures. The amendments in this ASU will require the Company to disclose specified additional information in its income tax rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. ASU 2023-09 will also require the Company to disaggregate its income taxes paid disclosure by federal, state and foreign taxes, with further disaggregation required for significant individual jurisdictions. This ASU is effective for annual periods beginning after December 15, 2024; early adoption is permitted. The Company will adopt this ASU on a prospective basis and continues to evaluate additional disclosures that may be required in its Annual Report on Form 10-K for the year ended December 31, 2025. In November 2024, the FASB issued ASU 2024-03 to improve the disclosures about public business entity’s expenses and address requests from investors for more detailed information about the types of expenses in commonly presented expense captions. The amendments in this ASU will require the Company to disclose specified information about certain costs and expenses in the notes to the financial statements. This ASU is effective for annual periods beginning after December 15, 2026 and interim periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact of this standard on our consolidated financial statements and related disclosures.

DERIVATIVES

9 Months Ended

Sep. 30, 2025

Summary of Derivative Instruments [Abstract]

DERIVATIVES

7. DERIVATIVES

Tredegar uses derivative financial instruments for the purpose of hedging margin exposure from fixed-price forward sales contracts in Aluminum Extrusions. These derivative financial instruments are designated as and qualify as cash flow hedges and are recognized in the condensed consolidated balance sheet at fair value. The fair value of derivative instruments recorded on the consolidated balance sheets is based upon Level 2 inputs. If individual derivative instruments with the same counterparty can be settled on a net basis, the Company records the corresponding derivative fair values as a net asset or net liability.

In the normal course of business, Aluminum Extrusions enters into fixed-price forward sales contracts with a small subset of its customers for the future sale of fixed quantities of aluminum extrusions at scheduled intervals. In order to hedge margin exposure created from the fixing of future sales prices relative to volatile raw material (aluminum) costs, Aluminum Extrusions enters into a combination of forward purchase commitments and futures contracts to acquire or hedge aluminum, based on the scheduled purchases for the firm sales commitments. The fixed-price firm sales commitments and related hedging instruments

have durations generally no longer than 12 months. The notional amount of aluminum futures contracts that hedged future purchases of aluminum to meet fixed-price forward sales contract obligations was $6.0 million (3.7 million pounds of aluminum) at September 30, 2025 and $4.3 million (3.1 million pounds of aluminum) at December 31, 2024.

The table below summarizes the location and gross amounts of aluminum futures contract fair values (Level 2) in the condensed consolidated balance sheets as of September 30, 2025 and December 31, 2024:


	September 30, 2025			December 31, 2024
(In thousands)	Balance Sheet Account	Fair Value		Balance Sheet Account	Fair Value
Derivatives Designated as Hedging Instruments
Asset derivatives: Aluminum futures contracts	Prepaid expenses and other	$	1,051	Prepaid expenses and other	$	172
Asset derivatives: Aluminum futures contracts	Other assets	33		Other assets	—
Liability derivatives: Aluminum futures contracts	Accrued expenses	(10)		Accrued expenses	(57)

Net asset (liability)		$	1,074		$	115

In the event that a counterparty to an aluminum fixed-price forward sales contract chooses not to take delivery of its aluminum extrusions, the customer is contractually obligated to compensate Aluminum Extrusions for any losses on the related aluminum futures and/or forward contracts through the date of cancellation.

The pre-tax effect on net income (loss) and other comprehensive income (loss) of derivative instruments classified as cash flow hedges and described in the previous paragraphs for the three and nine month periods ended September 30, 2025 and 2024 is summarized in the table below:


	Cash Flow Derivative Hedges
	Three Months Ended September 30,
	Aluminum Futures Contracts
(In thousands)	2025		2024
Amount of pre-tax gain (loss) recognized in other comprehensive income (loss)	$	829	$	10
Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion)	Cost of goods sold		Cost of goods sold
Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion)	$	612	$	(153)
	Nine Months Ended September 30,
	Aluminum Futures Contracts
	2025		2024
Amount of pre-tax gain (loss) recognized in other comprehensive income (loss)	$	1,540	$	56
Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion)	Cost of goods sold		Cost of goods sold
Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion)	$	581	$	(662)

As of September 30, 2025, the Company expects $0.8 million of unrealized after-tax gains on aluminum derivative instruments reported in accumulated other comprehensive income (loss) to be reclassified to earnings within the next 12 months. For the three and nine month periods ended September 30, 2025 and 2024, net gains or losses realized, from previously unrealized net gains or losses on hedges that had been discontinued, were not material.

- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

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+ Details

EARNINGS PER SHARE (Tables)

9 Months Ended

Sep. 30, 2025

Earnings Per Share [Abstract]

Schedule of Earnings Per Share

Diluted earnings per share is computed by dividing net income (loss) by the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows:


	Three Months Ended September 30,		Nine Months Ended September 30,
(In thousands)	2025	2024	2025	2024
Weighted average shares outstanding used to compute basic earnings per share	34,773	34,391	34,721	34,364
Incremental dilutive shares attributable to stock options and restricted stock	—	—	—	—
Shares used to compute diluted earnings per share	34,773	34,391	34,721	34,364

INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 2,014	$ 828	$ 3,575	$ 3,175
Income (loss) from continuing operations before income taxes	$ 9,123	$ (2,561)	$ 13,184	$ 11,560
Effective tax rate			27.10%	27.50%

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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+ Details

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)

9 Months Ended

Sep. 30, 2025

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component

The changes in accumulated other comprehensive income (loss) by component for the three months ended September 30, 2025.


(In thousands)	Foreign Currency Translation		Gain (Loss) on Derivative Financial Instruments		Pension & Other Postretirement Benefit Adjust		Total Accumulated Other Comprehensive Income (Loss)
Balance at July 1, 2025	$	5,180	$	666	$	688	$	6,534
Other comprehensive income (loss)	154		829		—		983
Income tax (expense) benefit	—		(185)		—		(185)
Other comprehensive income (loss), net of tax	154		644		—		798
Reclassification adjustment to net income (loss)	—		(613)		(63)		(676)
Income tax (expense) benefit	—		137		14		151
Reclassification adjustment to net income (loss), net of tax	—		(476)		(49)		(525)
Other comprehensive income (loss), net of tax	154		168		(49)		273
Balance at September 30, 2025	$	5,334	$	834	$	639	$	6,807

The changes in accumulated other comprehensive income (loss) by component for the nine months ended September 30, 2025.


(In thousands)	Foreign Currency Translation		Gain (Loss) on Derivative Financial Instruments		Pension & Other Postretirement Benefit Adjust		Total Accumulated Other Comprehensive Income (Loss)
Balance at January 1, 2025	$	5,105	$	268	$	826	$	6,199
Other comprehensive income (loss)	229		1,201		—		1,430
Income tax (expense) benefit	—		(270)		—		(270)
Other comprehensive income (loss), net of tax	229		931		—		1,160
Reclassification adjustment to net income (loss)	—		(484)		(239)		(723)
Income tax (expense) benefit	—		119		52		171
Reclassification adjustment to net income (loss), net of tax	—		(365)		(187)		(552)
Other comprehensive income (loss), net of tax	229		566		(187)		608
Balance at September 30, 2025	$	5,334	$	834	$	639	$	6,807

The changes in accumulated other comprehensive income (loss) by component for the three months ended September 30, 2024.


(In thousands)	Foreign Currency Translation		Gain (Loss) on Derivative Financial Instruments		Pension & Other Postretirement Benefit Adjust		Total Accumulated Other Comprehensive Income (Loss)
Balance at July 1, 2024	$	(90,273)	$	(564)	$	484	$	(90,353)
Other comprehensive income (loss)	1,500		262		—		1,762
Income tax (expense) benefit	(4)		(41)		—		(45)
Other comprehensive income (loss), net of tax	1,496		221		—		1,717
Reclassification adjustment to net income (loss)	—		281		(34)		247
Income tax (expense) benefit	—		(79)		7		(72)
Reclassification adjustment to net income (loss), net of tax	—		202		(27)		175
Other comprehensive income (loss), net of tax	1,496		423		(27)		1,892
Balance at September 30, 2024	$	(88,777)	$	(141)	$	457	$	(88,461)

The changes in accumulated other comprehensive income (loss) by component for the nine months ended September 30, 2024.


(In thousands)	Foreign Currency Translation		Gain (Loss) on Derivative Financial Instruments		Pension & Other Postretirement Benefit Adjust		Total Accumulated Other Comprehensive Income (Loss)
Balance at January 1, 2024	$	(83,037)	$	801	$	539	$	(81,697)
Other comprehensive income (loss)	(6,206)		(1,435)		—		(7,641)
Income tax (expense) benefit	466		275		—		741
Other comprehensive income (loss), net of tax	(5,740)		(1,160)		—		(6,900)
Reclassification adjustment to net income (loss)	—		220		(105)		115
Income tax (expense) benefit	—		(2)		23		21
Reclassification adjustment to net income (loss), net of tax	—		218		(82)		136
Other comprehensive income (loss), net of tax	(5,740)		(942)		(82)		(6,764)
Balance at September 30, 2024	$	(88,777)	$	(141)	$	457	$	(88,461)

BUSINESS SEGMENTS - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Exports From The United States \| Asia
Segment Reporting Information [Line Items]
Revenues	$ 6.7	$ 6.5	$ 19.7	$ 19.1

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

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+ Details

DISCONTINUED OPERATIONS (Tables)

9 Months Ended

Sep. 30, 2025

Discontinued Operations and Disposal Groups [Abstract]

Summary of Disposal Groups


	Three Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Revenue and other items
Sales	$	—	$	35,987	$	—	$	104,046
Other income (expense), net	—		3		—		6
	—		35,990		—		104,052
Costs and expenses
Cost of goods sold	—		29,204		—		85,793
Freight	—		1,618		—		5,021
Selling, general and administrative	35		3,121		360		5,651
Research and development	—		174		—		570
Amortization of intangibles	—		23		—		71
Interest expense1	—		2,288		—		6,799
(Gain) loss on sale of business	—		—		(9,657)		—
Total	35		36,428		(9,297)		103,905
Income (loss) from discontinued operations before income tax	(35)		(438)		9,297		147
Income tax expense (benefit)2	—		119		—		398
Income (loss) from discontinued operations, net of tax	$	(35)	$	(557)	$	9,297	$	(251)
1.For the three and nine months ended September 30, 2024, interest expense includes $0.6 million and $1.8 million, respectively, directly related to the $20 million of outstanding Terphane debt assumed by Oben. 2.An inconsequential income tax expense (benefit) was recognized during the three and nine months ended September 30, 2025, primarily due to foreign tax credits generated from the final Brazilian withholding tax payment made during the periods, which offset the tax liability on the income from discontinued operations.

The assets and liabilities of the discontinued operations reflected in the Condensed Consolidated Balance Sheets as of September 30, 2025 and December 31, 2024, respectively, were as follows:


(In thousands)	September 30, 2025		December 31, 2024
Assets
Deferred income taxes	$	—	$	126
Total noncurrent assets of discontinued operations	$	—	$	126

Liabilities1
Accounts payable	$	—	$	161
Accrued expenses	—		580
Total current liabilities of discontinued operations	$	—	$	741
1.The consolidated balance sheet of discontinued operations as of December 31, 2024 includes $0.6 million of severance and $0.2 million of miscellaneous accrued expenses.

The following table provides significant operating, investing and financing cash flow information for discontinued operations:


	Nine Months Ended September 30,
(In thousands)	2025		2024
Operating activities:
Depreciation and amortization	$	—	$	2,191
Gain on the sale of divested business	(9,657)		—
Total	$	(9,657)	$	2,191
Investing activities:
Proceeds from the sale of Terphane	$	9,835	$	—
Capital expenditures	—		2,108
Total	$	9,835	$	2,108

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

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+ Details

ACCOUNTS AND OTHER RECEIVABLES (Tables)

9 Months Ended

Sep. 30, 2025

Receivables [Abstract]

Schedule of Accounts and Other Receivable

As of September 30, 2025 and December 31, 2024, accounts and other receivables, net include the following:


(In thousands)	September 30, 2025		December 31, 2024
Customer receivables	$	86,892	$	64,094
Other receivables	1,332		952
Total accounts and other receivables	88,224		65,046
Less: Allowance for bad debts	(293)		(229)
Total accounts and other receivables, net	$	87,931	$	64,817

DISCONTINUED OPERATIONS - Summary of Assets and Liabilities of the Discontinued Operations (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Assets
Deferred income taxes	$ 0	$ 126
Total noncurrent assets of discontinued operations	0	126
Liabilities
Accounts payable	0	161
Accrued expenses	0	580
Total current liabilities of discontinued operations	$ 0	741
Severance		600
Miscellaneous accrued expenses		$ 200

INVENTORIES

9 Months Ended

Sep. 30, 2025

Inventory, Net [Abstract]

INVENTORIES

3. INVENTORIES

The components of inventories are as follows:


(In thousands)	September 30, 2025		December 31, 2024
Finished goods	$	15,063	$	15,051
Work-in-process	4,389		2,986
Raw materials	18,842		12,158
Stores, supplies and other	23,712		21,186
Total	$	62,006	$	51,381

PENSION AND OTHER POSTRETIREMENT BENEFITS (Tables)

9 Months Ended

Sep. 30, 2025

Retirement Benefits [Abstract]

Schedule of Components of Net Periodic Benefit Cost for Pension and Other Post-Retirement Benefit Programs

The components of net periodic benefit cost for the pension and Other Post-Retirement Benefits reflected in the condensed consolidated statements of income for the three and nine months ended September 30, 2025 and 2024, are shown below:


	Pension Benefits				Other Post-Retirement Benefits
	Three Months Ended September 30,				Three Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Service cost	$	—	$	—	$	3	$	3
Interest cost	19		20		68		65
Amortization of prior service costs, (gains) losses and net transition asset	5		3		(68)		(37)
Net periodic benefit cost	$	24	$	23	$	3	$	31


	Pension Benefits				Other Post-Retirement Benefits
	Nine Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Service cost	$	—	$	—	$	7	$	8
Interest cost	58		57		204		203
Amortization of prior service costs, (gains) losses and net transition asset	15		15		(254)		(120)
Net periodic benefit cost	$	73	$	72	$	(43)	$	91

DERIVATIVES - Schedule of Pretax Effect on Net Income (Loss) and Other Comprehensive Income (Loss) of Derivative Instruments Classified as Cash Flow Hedges (Details) - Aluminum futures contracts - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Derivatives, Fair Value [Line Items]
Amount of pre-tax gain (loss) recognized in other comprehensive income (loss)	$ 829	$ 10
Cost of Sales
Derivatives, Fair Value [Line Items]
Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion)	$ 612	$ (153)
Cost of Sales \| Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Amount of pre-tax gain (loss) recognized in other comprehensive income (loss)			$ 1,540	$ 56
Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion)			$ 581	$ (662)

EARNINGS PER SHARE

9 Months Ended

Sep. 30, 2025

Earnings Per Share [Abstract]

EARNINGS PER SHARE

5. EARNINGS PER SHARE

Basic earnings per share is computed by dividing net income (loss) by the weighted average number of shares of common stock outstanding. Diluted earnings per share is computed by dividing net income (loss) by the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows:


	Three Months Ended September 30,		Nine Months Ended September 30,
(In thousands)	2025	2024	2025	2024
Weighted average shares outstanding used to compute basic earnings per share	34,773	34,391	34,721	34,364
Incremental dilutive shares attributable to stock options and restricted stock	—	—	—	—
Shares used to compute diluted earnings per share	34,773	34,391	34,721	34,364

Incremental shares attributable to stock options and restricted stock are computed under the treasury stock method using the average market price during the related period. Average out-of-the-money options to purchase shares that were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 1,205,105 and 1,258,787 for the three and nine months ended September 30, 2025, respectively. If the Company had reported net income from continuing operations for the three months ended September 30, 2024, average out-of-the-money options to purchase shares that were excluded from the calculation of incremental shares attributable to stock options and restricted stock would have been 2,353,905. Average out-of-the-money options to purchase shares that were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 2,550,542 for the nine months ended September 30, 2024.

DERIVATIVES - Summary of Location and Fair Value of Derivative Financial Instruments (Details) - Aluminum Futures Contracts - Designated as Hedging Instrument - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Derivatives, Fair Value [Line Items]
Net asset (liability)	$ 1,074	$ 115
Prepaid expenses and other
Derivatives, Fair Value [Line Items]
Asset derivatives	1,051	172
Other assets
Derivatives, Fair Value [Line Items]
Asset derivatives	33	0
Accrued expenses
Derivatives, Fair Value [Line Items]
Liability derivatives	$ (10)	$ (57)

- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References + Details

- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References + Details

DEBT (Details) ¥ in Millions, $ in Millions		3 Months Ended	9 Months Ended
DEBT (Details) ¥ in Millions, $ in Millions	Jun. 25, 2024 CNY (¥)	Mar. 31, 2025	Sep. 30, 2025 USD ($) Rate	Sep. 30, 2025 CNY (¥) Rate	May 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Line of Credit Facility [Line Items]
Maximum borrowing capacity after ABL adjustment			$ 125.0		$ 125.0
Remaining borrowing capacity			$ 72.5
Percentage of remaining borrowing capacity \| Rate			58.00%	58.00%
Minimum availability after ABL adjustment \| Rate			20.00%	20.00%
Minimum Availability, Dollar Threshold			$ 20.0
Letters of Credit Outstanding, Amount			$ 3.0			$ 12.0
Guangzhou Tredegar Loan
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.45%
Borrowing \| ¥	¥ 9.5
Mortgage contract maximum value \| ¥				¥ 30.0
Revolving Credit Facility \| Amended ABL Facility
Line of Credit Facility [Line Items]
Commitment fee percentage threshold			50.00%	50.00%
Property, plant, and equipment component threshold, percentage of net orderly liquidation value			60.00%
Property, plant, and equipment component threshold, percentage of borrowing base			30.00%
Amount of eligible cash, cap, percentage of borrowing base			15.00%
Revolving Credit Facility \| Amended ABL Facility \| Adjusted Term Secured Overnight Financing Rate (SOFR)
Line of Credit Facility [Line Items]
Basis spread on variable rate			1.00%
Revolving Credit Facility \| Amended ABL Facility \| Term Secured Overnight Financing Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate			0.10%
Initial floor percentage			0.00%
Revolving Credit Facility \| Amended ABL Facility \| Fixed Charge Coverage Ratio
Line of Credit Facility [Line Items]
Minimum availability before ABL adjustment			0.10	0.10
Fixed charge coverage ratio, monetary availability threshold			$ 10.0
Revolving Credit Facility \| Amended ABL Facility \| Base Rate
Line of Credit Facility [Line Items]
Cash Dominion Period availability			0.125	0.125
Cash dominion period, monetary availability threshold			$ 12.6
Revolving Credit Facility \| Amended ABL Facility If Average Usage Is Greater Than Or Equal To 50%
Line of Credit Facility [Line Items]
Commitment fee percentage		0.40%	0.25%
Revolving Credit Facility \| Amended ABL Facility If Average Usage Is Less Than 50%
Line of Credit Facility [Line Items]
Commitment fee percentage			0.375%

DERIVATIVES - Narrative (Details) lb in Millions, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2025 USD ($) lb	Dec. 31, 2024 USD ($) lb
Derivative [Line Items]
Amounts of unrealized after-tax gains on derivative instruments	$ 0.8
Aluminum Futures Contracts
Derivative [Line Items]
Notional amount	$ 6.0	$ 4.3
Weight of aluminum that hedged future purchase of aluminum to meet fixed-price forward sales contract obligations, lbs \| lb	3.7	3.1

BUSINESS SEGMENTS - Schedule of Depreciation and Amortization, Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Depreciation and amortization
Discontinued operations	$ 0	$ 708	$ 0	$ 2,191
Capital expenditures
Capital expenditures			9,246	7,696
Discontinued operations	0	948	0	2,108
Operating Segments
Depreciation and amortization
Depreciation and amortization	5,462	6,477	16,360	19,782
Capital expenditures
Capital expenditures	3,608	2,914	9,246	7,696
Aluminum Extrusions \| Operating Segments
Depreciation and amortization
Depreciation and amortization	4,190	4,404	12,509	13,392
Capital expenditures
Capital expenditures	3,079	1,449	7,835	4,461
PE Films \| Operating Segments
Depreciation and amortization
Depreciation and amortization	1,224	1,299	3,705	3,944
Capital expenditures
Capital expenditures	529	517	1,411	1,127
Subtotal
Depreciation and amortization
Depreciation and amortization	5,414	5,703	16,214	17,336
Subtotal \| Operating Segments
Depreciation and amortization
Depreciation and amortization	5,414	5,703	16,214	17,336
Capital expenditures
Capital expenditures	3,608	1,966	9,246	5,588
General corporate \| Operating Segments
Depreciation and amortization
Depreciation and amortization	$ 48	$ 66	$ 146	$ 255

BUSINESS SEGMENTS - Schedule Of Net Sales By Product Group (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenue from External Customer [Line Items]
Total	$ 188,353	$ 140,596	$ 520,487	$ 428,164
Aluminum Extrusions
Revenue from External Customer [Line Items]
Total	162,470	115,717	444,470	349,353
PE Films
Revenue from External Customer [Line Items]
Total	25,883	24,879	76,017	78,811
Nonresidential building & construction \| Aluminum Extrusions
Revenue from External Customer [Line Items]
Total	87,388	63,362	236,612	200,978
Consumer durables \| Aluminum Extrusions
Revenue from External Customer [Line Items]
Total	13,297	8,210	37,715	24,440
Automotive \| Aluminum Extrusions
Revenue from External Customer [Line Items]
Total	10,832	10,583	32,899	30,487
Residential building & construction \| Aluminum Extrusions
Revenue from External Customer [Line Items]
Total	11,516	9,368	30,539	26,440
Electrical \| Aluminum Extrusions
Revenue from External Customer [Line Items]
Total	14,429	8,541	42,292	21,075
Machinery & equipment \| Aluminum Extrusions
Revenue from External Customer [Line Items]
Total	17,662	12,564	48,943	36,434
Distribution \| Aluminum Extrusions
Revenue from External Customer [Line Items]
Total	7,346	3,089	15,470	9,499
Subtotal \| Aluminum Extrusions
Revenue from External Customer [Line Items]
Total	162,470	115,717	444,470	349,353
Surface protection films \| PE Films
Revenue from External Customer [Line Items]
Total	19,163	17,516	54,675	56,241
Overwrap packaging \| PE Films
Revenue from External Customer [Line Items]
Total	6,720	7,363	21,342	22,570
Subtotal \| PE Films
Revenue from External Customer [Line Items]
Total	$ 25,883	$ 24,879	$ 76,017	$ 78,811

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Sep. 30, 2025
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 7,074	$ (3,946)	$ 18,906	$ 8,134
Other comprehensive income (loss):
Unrealized foreign currency translation adjustment ($0 tax in 2025 and net of tax expense of $4 in 2024)	154	1,496	229	(5,740)
Derivative financial instruments adjustment (net of tax expense of $48 in 2025 and net of tax expense of $120 in 2024)	168	423	566	(942)
Amortization of prior service costs and net gains or losses (net of tax benefit of $14 in 2025 and net of tax benefit of $7 in 2024)	(49)	(27)	(187)	(82)
Other comprehensive income (loss)	273	1,892	608	(6,764)
Comprehensive income (loss)	$ 7,347	$ (2,054)	$ 19,514	$ 1,370

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

- Definition

Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

+ References + Details

ACCOUNTS AND OTHER RECEIVABLES (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Receivables [Abstract]
Customer receivables	$ 86,892	$ 64,094
Other receivables	1,332	952
Total accounts and other receivables	88,224	65,046
Less: Allowance for bad debts	(293)	(229)
Total accounts and other receivables, net	$ 87,931	$ 64,817

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Cash flows from operating activities:
Net income (loss)	$ 7,074	$ (3,946)	$ 18,906	$ 8,134
Adjustments for noncash items:
Depreciation			15,041	18,372
Amortization of identifiable intangibles			1,319	1,410
Reduction of right-of-use lease asset			1,584	1,735
Deferred income taxes			2,873	2,975
Accrued pension and post-retirement benefits			134	163
Stock-based compensation expense			1,759	1,950
Gain on investment in kaléo			0	(144)
Gain on the sale of assets			(1,497)	0
Gain on the sale of divested business	0	0	(9,657)	0	$ 74,900
Changes in assets and liabilities:
Accounts and other receivables			(23,113)	(14,683)
Inventories			(10,615)	(8,711)
Income taxes recoverable/payable			(111)	(952)
Prepaid expenses and other			5,909	(286)
Accounts payable and accrued expenses			14,407	(3,454)
Lease liability			(1,800)	(2,118)
Pension and postretirement benefit plan contributions			(430)	(455)
Other, net			2,559	2,117
Net cash provided by (used in) operating activities			17,268	6,053
Cash flows from investing activities:
Capital expenditures			(9,246)	(7,696)
Proceeds from the sale of Terphane			9,835	0
Proceeds on sale of investment in kaléo			0	144
Proceeds from the sale of assets			1,904	83
Net cash provided by (used in) investing activities			2,493	(7,469)
Cash flows from financing activities:
Borrowings			103,747	519,274
Debt principal payments			(116,173)	(522,240)
Debt financing costs			(1,272)	(587)
Net cash provided by (used in) financing activities			(13,698)	(3,553)
Effect of exchange rate changes on cash			166	(1,898)
Increase (decrease) in cash and cash equivalents			6,229	(6,867)
Cash and cash equivalents at beginning of period			7,062	13,455	13,455
Cash and cash equivalents at end of period	$ 13,291	$ 6,588	$ 13,291	$ 6,588	$ 7,062

DEBT

9 Months Ended

Sep. 30, 2025

Debt Disclosure [Abstract]

DEBT

10. DEBT

ABL Facility

In May 2025, the Company entered into Amendment No. 5 (“Amendment No. 5”) to the Second Amended and Restated Credit Agreement (the "ABL Facility"), which provides the Company with a $125 million senior secured asset-based revolving credit facility. The ABL Facility is secured by substantially all assets of the Company and its domestic subsidiaries, including equity in certain material first-tier foreign subsidiaries. Availability for borrowings under the ABL Facility is governed by a borrowing base, determined by the application of specified advance rates against eligible assets, including a portion of trade accounts receivable, inventory, cash and cash equivalents, and owned machinery and equipment. Amendment No. 5 extended the maturity date of the ABL Facility to May 6, 2030. As of September 30, 2025, funds available to borrow under the ABL Facility was $72.5 million, or 58.0% of the aggregate commitment of $125 million. During the third quarter of 2025, the Company's letters of credit have been reduced from approximately $12 million to $3 million, which directly increases the Company's borrowing availability.

Outstanding borrowings accrue interest at the rates elected by the Company depending on the type of loan and denomination of such borrowing. With respect to revolving loans denominated in U.S. Dollars, the Company may elect interest rates at:

•Alternate Base Rate (“ABR”) plus the applicable ABR Spread (as defined in the ABL Facility) determined in accordance with an excess availability-based pricing grid. ABR is defined, in part, as the greater of (a) the Prime Rate in effect on such day, (b) the Federal Reserve Bank of New York Rate in effect on such day plus ½ of 1% and (c) the Adjusted Term SOFR Rate (defined below) for a one-month period plus 1%; or

•The Adjusted Term Secured Overnight Financing Rate ("SOFR") Rate plus the applicable Term Benchmark Spread (as defined in the ABL Facility) determined in accordance with an excess availability-based pricing grid. Adjusted Term SOFR Rate is defined as the Term SOFR Rate plus 0.10%, subject to an initial Floor (as defined in the ABL Facility) of 0%.

As amended by Amendment No. 5, based upon the quarterly average of daily availability under the ABL Facility, the interest rate pricing grid, is as follows:


Pricing under the ABL Facility (Basis Points)
Quarter Average of Daily Availability	Term Benchmark Spread	ABR Spread
> 66% of $125 million aggregate commitment	175.0	75.0
≤ 66% but > 33% of $125 million aggregate commitment	200.0	100.0
≤ 33% of $125 million aggregate commitment	225.0	125.0

Pursuant to Amendment No. 5, the commitment fee was decreased from 0.40% to (i) 0.25% if the Average Usage (as defined in the ABL Facility) is greater than or equal to 50% and (ii) 0.375% if Average Usage is less than 50%.

The borrowing base calculation was amended by Amendment No. 5 as follows: (i) real property is no longer eligible to be included in the borrowing base, (ii) the PP&E Component (as defined in the ABL Facility), as included in the borrowing base, was decreased to the lesser of (a) 60% of the Net Orderly Liquidation Value (as defined in the ABL Facility) in place of eligible equipment and (b) 30% of the borrowing base and (iii) the amount of eligible cash included in the borrowing base is now capped at 15% of the borrowing base.

The financial covenant is a minimum fixed charge coverage ratio (as defined in the ABL Facility) of 1.00:1.00 that will be triggered in the event that availability is less than the greater of (x) 10% of the Line Cap (as defined in the ABL Facility) and (y) $10 million and will continue until availability is equal to or greater than the greater of (x) 10% of the Line Cap and (y) $10 million for 30 consecutive days, as long as no events of default are continuing.

If at any time the availability under the ABL facility is less than the greater of (x) 20% of the Line Cap and (y) $20 million and until such subsequent date, if any, on which availability is greater than the greater of (x) 20% of the Line Cap and (y) $20 million for a period of thirty (30) consecutive calendar days, the Company’s current monthly reporting requirements to lenders changes to a weekly cadence.

A Cash Dominion Period (as defined in the ABL Facility) is now triggered when (x) availability falls below the greater of (i) 12.5% of the Line Cap and (ii) $12.6 million or (y) during the continuation of an event of default and continuing until (x) availability is above the greater of (i) 12.5% of the Line Cap and (ii) $12.6 million for 30 consecutive days and (y) no events of default are continuing. During a Cash Dominion Period, receipts that have not yet been applied to the ABL Facility are classified as restricted cash in the Company’s consolidated balance sheets.

The ABL Facility has customary representations and warranties including, as a condition to each borrowing, that all such representations and warranties are true and correct in all material respects (including a representation that no Material Adverse Effect (as defined in the ABL Facility) has occurred since December 31, 2024). In the event that the Company cannot certify that all conditions to the borrowing have been met, the lenders can restrict the Company’s future borrowings under the ABL Facility.

In accordance with the ABL Facility, the lenders have been provided with the Company’s financial statements, covenant compliance certificates and projections to facilitate their ongoing assessment of the Company. Accordingly, the Company believes the likelihood that lenders would exercise the subjective acceleration clause whereby prohibiting future borrowings is remote. As of September 30, 2025, the Company was in compliance with all debt covenants.

PE Films Guangzhou Loan

In June 2024, PE Films' business location in Guangzhou, China, Guangzhou Tredegar Film Products Co., Ltd. (“Guangzhou Tredegar”), entered into a 9.5 million Chinese Yuan revolving loan with the Industrial and Commercial Bank of China. This loan matured on July 3, 2025. The interest rate was the one year loan prime rate published by the National Interbank Funding Center for the working day immediately preceding the drawdown date, minus 0.45%. As of September 30, 2025, there was no outstanding loan balance. The revolving loan was secured by a mortgage contract listing the Guangzhou Tredegar factory building as collateral. The mortgage contract has a maximum value of 30 million Chinese Yuan and is effective from June 25, 2024 through May 31, 2027. Guangzhou Tredegar has the option to enter into additional loan contracts with the Industrial and Commercial Bank of China for the duration of the mortgage contract. As of December 31, 2024, this loan was presented as current debt on the consolidated balance sheets.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

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+ Details

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
	Sep. 30, 2025
Basis Of Presentation [Abstract]
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES In the opinion of management, the accompanying condensed consolidated financial statements of Tredegar Corporation and its subsidiaries (“Tredegar,” “the Company,” “we,” “us” or “our”) contain all adjustments necessary to state fairly, in all material respects, Tredegar’s condensed consolidated financial position as of September 30, 2025, the condensed consolidated results of operations for the three and nine months ended September 30, 2025 and 2024, the condensed consolidated cash flows for the nine months ended September 30, 2025 and 2024, and the condensed consolidated changes in shareholders’ equity for the three and nine months ended September 30, 2025 and 2024, in accordance with U.S. generally accepted accounting principles (“GAAP”). All such adjustments, unless otherwise detailed in the notes to the condensed consolidated financial statements, are deemed to be of a normal, recurring nature. The Company operates on a calendar fiscal year except for the Aluminum Extrusions segment, which operates on a 52/53-week fiscal year basis. As such, the fiscal third quarter for 2025 and 2024 for this segment references 13-week periods ended September 28, 2025 and September 29, 2024, respectively. The Company does not believe the impact of reporting the results of this segment as stated above is material to the consolidated financial results. The Company may fund or receive cash from the Aluminum Extrusions segment based on Aluminum Extrusion’s cash flows from operations during the intervening period from Aluminum Extrusion’s fiscal quarter end and the Company’s fiscal quarter end. As a result, the Company’s cash and cash equivalents declined by $3.6 million as of December 31, 2024 since the Company made payments to the Aluminum Extrusions segment to fund its working capital during the intervening period. There was no intercompany funding with Aluminum Extrusions between September 28, 2025 and September 30, 2025. The condensed consolidated financial statements as of December 31, 2024 that is included herein was derived from the audited consolidated financial statements provided in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024 (“2024 Form 10-K”) but does not include all disclosures required by GAAP. These financial statements should be read in conjunction with the audited consolidated financial statements and related notes included in the 2024 Form 10-K. The results of operations for the three and nine months ended September 30, 2025, are not necessarily indicative of the results to be expected for the full year. Sale of Flexible Packaging Films On November 1, 2024, the Company completed the sale of its flexible packaging films business (also referred to as “Terphane”) headquartered in Brazil to Oben Group (“Oben”). Commencing in the fourth quarter of 2024, all historical results for Terphane have been presented as discontinued operations. For more information on this transaction, see Note 11. Closure of PE Films Technical Center In August 2023, the Company adopted a plan to close the PE Films technical center in Richmond, VA and reduce its efforts to develop and sell films supporting the semiconductor market. Research & development activities for PE Films are now being performed at the production facility in Pottsville, PA. PE Films continues to have new business opportunities primarily relating to surface protection films that protect components of flat panel and flexible displays. All activities ceased at the PE Films technical center in Richmond, VA as of the end of the first quarter of 2024. Accounting standards not yet adopted In October 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-06 to amend various paragraphs in the Accounting Standards Codification ("ASC") to primarily reflect the issuance of U.S. Securities and Exchange Commission ("SEC") Staff Bulletin No. 33-10532. ASU 2023-06 will impact various disclosure areas, including the statement of cash flows, accounting changes and error corrections, earnings per share, debt, equity, derivatives, and transfers of financial assets. The amendments in this ASU 2023-06 will be effective on the date the related disclosures are removed from Regulation S-X or Regulation S-K by the SEC and will no longer be effective if the SEC has not removed the applicable disclosure requirement by June 30, 2027. Early adoption is not permitted. The Company does not expect a material impact from the adoption of this standard on our consolidated financial statements and related disclosures. In December 2023, the FASB issued ASU 2023-09 to improve the income tax disclosures related to the rate reconciliation and income taxes paid information and to improve the effectiveness of income tax disclosures. The amendments in this ASU will require the Company to disclose specified additional information in its income tax rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. ASU 2023-09 will also require the Company to disaggregate its income taxes paid disclosure by federal, state and foreign taxes, with further disaggregation required for significant individual jurisdictions. This ASU is effective for annual periods beginning after December 15, 2024; early adoption is permitted. The Company will adopt this ASU on a prospective basis and continues to evaluate additional disclosures that may be required in its Annual Report on Form 10-K for the year ended December 31, 2025. In November 2024, the FASB issued ASU 2024-03 to improve the disclosures about public business entity’s expenses and address requests from investors for more detailed information about the types of expenses in commonly presented expense captions. The amendments in this ASU will require the Company to disclose specified information about certain costs and expenses in the notes to the financial statements. This ASU is effective for annual periods beginning after December 15, 2026 and interim periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact of this standard on our consolidated financial statements and related disclosures.

PENSION AND OTHER POSTRETIREMENT BENEFITS - Schedule Of Components Of Net Periodic Benefit Cost For Pension And Other Post-Retirement Benefit Programs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	19	20	58	57
Amortization of prior service costs, (gains) losses and net transition asset	5	3	15	15
Net periodic benefit cost	24	23	73	72
Other Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	3	7	8
Interest cost	68	65	204	203
Amortization of prior service costs, (gains) losses and net transition asset	(68)	(37)	(254)	(120)
Net periodic benefit cost	$ 3	$ 31	$ (43)	$ 91

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

Condensed Consolidated Statements of Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenues and other:
Sales	$ 194,942	$ 146,064	$ 538,796	$ 443,976
Other income (expense), net	4	(26)	1,381	304
Total revenues, net of other expenses	194,946	146,038	540,177	444,280
Costs and expenses:
Selling, general and administrative	20,225	18,673	61,443	54,289
Research and development	147	301	504	424
Amortization of identifiable intangibles	440	440	1,319	1,339
Pension and postretirement benefits	27	54	30	163
Interest expense	768	1,192	3,566	3,515
Asset impairments and costs associated with exit and disposal activities, net of adjustments	418	0	435	587
Total	185,823	148,599	526,993	432,720
Income (loss) from continuing operations before income taxes	9,123	(2,561)	13,184	11,560
Income tax expense (benefit)	2,014	828	3,575	3,175
Net income (loss) from continuing operations	7,109	(3,389)	9,609	8,385
Income (loss) from discontinued operations, net of tax	(35)	(557)	9,297	(251)
Net income (loss)	$ 7,074	$ (3,946)	$ 18,906	$ 8,134
Basic:
Continuing operations (in dollars per share)	$ 0.20	$ (0.10)	$ 0.28	$ 0.24
Discontinued operations (in dollars per share)	0	(0.01)	0.27	0
Basic earnings (loss) per share (in dollars per share)	0.20	(0.11)	0.55	0.24
Diluted:
Continuing operations (in usd per share)	0.20	(0.10)	0.28	0.24
Discontinued operations (in dollars per share)	0	(0.01)	0.27	0
Diluted earnings (loss) per share (in dollars per share)	$ 0.20	$ (0.11)	$ 0.55	$ 0.24
Shares used to compute earnings (loss) per share:
Basic (in shares)	34,773	34,391	34,721	34,364
Diluted (in shares)	34,773	34,391	34,721	34,364
Cost of goods sold
Costs and expenses:
Cost of goods and services sold	$ 157,209	$ 122,471	$ 441,387	$ 356,591
Freight
Costs and expenses:
Cost of goods and services sold	$ 6,589	$ 5,468	$ 18,309	$ 15,812

INVENTORIES (Tables)

9 Months Ended

Sep. 30, 2025

Inventory, Net [Abstract]

Schedule of Inventory

The components of inventories are as follows:


(In thousands)	September 30, 2025		December 31, 2024
Finished goods	$	15,063	$	15,051
Work-in-process	4,389		2,986
Raw materials	18,842		12,158
Stores, supplies and other	23,712		21,186
Total	$	62,006	$	51,381

Cover - shares	9 Months Ended
Cover - shares	Sep. 30, 2025	Oct. 31, 2025
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2025
Document Transition Report	false
Entity File Number	1-10258
Entity Registrant Name	Tredegar Corporation
Entity Incorporation, State or Country Code	VA
Entity Tax Identification Number	54-1497771
Entity Address, Address Line One	1100 Boulders Parkway
Entity Address, City or Town	Richmond,
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	23225
City Area Code	(804)
Local Phone Number	330-1000
Title of 12(b) Security	Common stock, no par value
Trading Symbol	TG
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		34,910,693
Entity Central Index Key	0000850429
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q3
Amendment Flag	false

PENSION AND OTHER POSTRETIREMENT BENEFITS

9 Months Ended

Sep. 30, 2025

Retirement Benefits [Abstract]

PENSION AND OTHER POSTRETIREMENT BENEFITS

4. PENSION AND OTHER POSTRETIREMENT BENEFITS

Tredegar sponsored a noncontributory defined benefit (pension) plan covering certain current and former U.S. employees. As of January 31, 2018, the plan no longer accrued benefits associated with crediting employees for service, thereby freezing all future benefits under the plan. On February 10, 2022, Tredegar announced the initiation of a process to terminate and settle its frozen defined benefit pension plan through lump sum distributions and the purchase of annuity contracts. On November 3, 2023, the pension plan termination and settlement process for the Company was completed, and the remaining pension plan obligation was transferred to Massachusetts Mutual Life Insurance Company. During 2023, the Company recognized a total pre-tax pension settlement loss of $92.3 million.

Tredegar also has a non-qualified supplemental pension plan covering certain employees. Effective December 31, 2005, further participation in this plan was terminated and benefit accruals for existing participants were frozen. Pension expense recognized for this plan was immaterial in the three and nine months ended September 30, 2025 and 2024.

In addition to providing non-qualified supplemental pension benefits, the Company provides postretirement life insurance and health care benefits ("Other Post-Retirement Benefits") for certain groups of employees. Tredegar and retirees share in the costs with employees hired on or before January 1, 1993, who receive a fixed subsidy to cover a portion of their health care premiums.

On October 31, 2025, Tredegar terminated the Other Post-Retirement Benefits by prefunding $0.1 million, representing all required contributions for the remainder of 2025. As of September 30, 2025, the Other Post-Retirement Benefits total obligation and unrecognized pre-tax actuarial gain reported in the condensed consolidated balance sheets is $5.0 million and $1.3 million, respectively, which is expected to be realized into the income statement during the fourth quarter of 2025.


	Pension Benefits				Other Post-Retirement Benefits
	Three Months Ended September 30,				Three Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Service cost	$	—	$	—	$	3	$	3
Interest cost	19		20		68		65
Amortization of prior service costs, (gains) losses and net transition asset	5		3		(68)		(37)
Net periodic benefit cost	$	24	$	23	$	3	$	31


	Pension Benefits				Other Post-Retirement Benefits
	Nine Months Ended September 30,				Nine Months Ended September 30,
(In thousands)	2025		2024		2025		2024
Service cost	$	—	$	—	$	7	$	8
Interest cost	58		57		204		203
Amortization of prior service costs, (gains) losses and net transition asset	15		15		(254)		(120)
Net periodic benefit cost	$	73	$	72	$	(43)	$	91

Pension and other postretirement liabilities were $6.4 million and $6.6 million at September 30, 2025 and December 31, 2024, respectively ($0.6 million included in “Accrued expenses” at September 30, 2025 and December 31, 2024 with the remainder included in “Pension and other postretirement benefit obligations, net” in the condensed consolidated balance sheets).

- Definition

The entire disclosure for retirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 715
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

DERIVATIVES (Tables)

9 Months Ended

Sep. 30, 2025

Summary of Derivative Instruments [Abstract]

Summary of Location and Fair Value of Derivative Financial Instruments


	September 30, 2025			December 31, 2024
(In thousands)	Balance Sheet Account	Fair Value		Balance Sheet Account	Fair Value
Derivatives Designated as Hedging Instruments
Asset derivatives: Aluminum futures contracts	Prepaid expenses and other	$	1,051	Prepaid expenses and other	$	172
Asset derivatives: Aluminum futures contracts	Other assets	33		Other assets	—
Liability derivatives: Aluminum futures contracts	Accrued expenses	(10)		Accrued expenses	(57)

Net asset (liability)		$	1,074		$	115

Schedule of Pretax Effect on Net Income (Loss) and Other Comprehensive Income (Loss) of Derivative Instruments Classified as Cash Flow Hedges


	Cash Flow Derivative Hedges
	Three Months Ended September 30,
	Aluminum Futures Contracts
(In thousands)	2025		2024
Amount of pre-tax gain (loss) recognized in other comprehensive income (loss)	$	829	$	10
Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion)	Cost of goods sold		Cost of goods sold
Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion)	$	612	$	(153)
	Nine Months Ended September 30,
	Aluminum Futures Contracts
	2025		2024
Amount of pre-tax gain (loss) recognized in other comprehensive income (loss)	$	1,540	$	56
Location of gain (loss) reclassified from accumulated other comprehensive income (loss) into net income (effective portion)	Cost of goods sold		Cost of goods sold
Amount of pre-tax gain (loss) reclassified from accumulated other comprehensive income (loss) to net income (effective portion)	$	581	$	(662)

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

9 Months Ended

Sep. 30, 2025

Other Comprehensive Income (Loss), Net of Tax [Abstract]

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

6. ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)

The changes in accumulated other comprehensive income (loss) by component for the three months ended September 30, 2025.


(In thousands)	Foreign Currency Translation		Gain (Loss) on Derivative Financial Instruments		Pension & Other Postretirement Benefit Adjust		Total Accumulated Other Comprehensive Income (Loss)
Balance at July 1, 2025	$	5,180	$	666	$	688	$	6,534
Other comprehensive income (loss)	154		829		—		983
Income tax (expense) benefit	—		(185)		—		(185)
Other comprehensive income (loss), net of tax	154		644		—		798
Reclassification adjustment to net income (loss)	—		(613)		(63)		(676)
Income tax (expense) benefit	—		137		14		151
Reclassification adjustment to net income (loss), net of tax	—		(476)		(49)		(525)
Other comprehensive income (loss), net of tax	154		168		(49)		273
Balance at September 30, 2025	$	5,334	$	834	$	639	$	6,807

The changes in accumulated other comprehensive income (loss) by component for the nine months ended September 30, 2025.


(In thousands)	Foreign Currency Translation		Gain (Loss) on Derivative Financial Instruments		Pension & Other Postretirement Benefit Adjust		Total Accumulated Other Comprehensive Income (Loss)
Balance at January 1, 2025	$	5,105	$	268	$	826	$	6,199
Other comprehensive income (loss)	229		1,201		—		1,430
Income tax (expense) benefit	—		(270)		—		(270)
Other comprehensive income (loss), net of tax	229		931		—		1,160
Reclassification adjustment to net income (loss)	—		(484)		(239)		(723)
Income tax (expense) benefit	—		119		52		171
Reclassification adjustment to net income (loss), net of tax	—		(365)		(187)		(552)
Other comprehensive income (loss), net of tax	229		566		(187)		608
Balance at September 30, 2025	$	5,334	$	834	$	639	$	6,807

The changes in accumulated other comprehensive income (loss) by component for the three months ended September 30, 2024.


(In thousands)	Foreign Currency Translation		Gain (Loss) on Derivative Financial Instruments		Pension & Other Postretirement Benefit Adjust		Total Accumulated Other Comprehensive Income (Loss)
Balance at July 1, 2024	$	(90,273)	$	(564)	$	484	$	(90,353)
Other comprehensive income (loss)	1,500		262		—		1,762
Income tax (expense) benefit	(4)		(41)		—		(45)
Other comprehensive income (loss), net of tax	1,496		221		—		1,717
Reclassification adjustment to net income (loss)	—		281		(34)		247
Income tax (expense) benefit	—		(79)		7		(72)
Reclassification adjustment to net income (loss), net of tax	—		202		(27)		175
Other comprehensive income (loss), net of tax	1,496		423		(27)		1,892
Balance at September 30, 2024	$	(88,777)	$	(141)	$	457	$	(88,461)

The changes in accumulated other comprehensive income (loss) by component for the nine months ended September 30, 2024.


(In thousands)	Foreign Currency Translation		Gain (Loss) on Derivative Financial Instruments		Pension & Other Postretirement Benefit Adjust		Total Accumulated Other Comprehensive Income (Loss)
Balance at January 1, 2024	$	(83,037)	$	801	$	539	$	(81,697)
Other comprehensive income (loss)	(6,206)		(1,435)		—		(7,641)
Income tax (expense) benefit	466		275		—		741
Other comprehensive income (loss), net of tax	(5,740)		(1,160)		—		(6,900)
Reclassification adjustment to net income (loss)	—		220		(105)		115
Income tax (expense) benefit	—		(2)		23		21
Reclassification adjustment to net income (loss), net of tax	—		218		(82)		136
Other comprehensive income (loss), net of tax	(5,740)		(942)		(82)		(6,764)
Balance at September 30, 2024	$	(88,777)	$	(141)	$	457	$	(88,461)

The amounts reclassified out of accumulated other comprehensive income (loss) related to pension and Other Post-Retirement Benefits is included in the computation of net periodic pension costs. See Note 4 for additional details.