SEC Filing Keyword Search Group 3,4,5Annual FilingsCurrent ReportsMergers & AcquisitionsOtherProxy FilingsQuarterly FilingsRegistration Statements Filing year - Any -20222021202020192018201720162015201420132012201120102009200820072006200520042003200220012000199919981997199619951994 Filing date Description Form View 03/23/2021 Statement of changes in beneficial ownership of securities 4 0000850429-21-000024.rtf 0000850429-21-000024.xls 0000850429-21-000024.pdf View HTML 03/23/2021 Statement of changes in beneficial ownership of securities 4 0000850429-21-000025.rtf 0000850429-21-000025.xls 0000850429-21-000025.pdf View HTML 03/23/2021 Statement of changes in beneficial ownership of securities 4 0000850429-21-000026.rtf 0000850429-21-000026.xls 0000850429-21-000026.pdf View HTML 03/18/2021 An amendment to a SC 13D filing SC 13D/A 0000807249-21-000056.rtf 0000807249-21-000056.xls 0000807249-21-000056.pdf View HTML 03/16/2021 Report of unscheduled material events or corporate event 8-K 0000850429-21-000022.rtf 0000850429-21-000022.xls 0000850429-21-000022.pdf EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML 03/16/2021 Annual report which provides a comprehensive overview of the company for the past year 10-K 0000850429-21-000020.rtf 0000850429-21-000020.xls 0000850429-21-000020.pdf EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML 03/02/2021 Statement of changes in beneficial ownership of securities 4 0000850429-21-000012.rtf 0000850429-21-000012.xls 0000850429-21-000012.pdf View HTML 03/02/2021 Statement of changes in beneficial ownership of securities 4 0000850429-21-000013.rtf 0000850429-21-000013.xls 0000850429-21-000013.pdf View HTML 03/02/2021 Statement of changes in beneficial ownership of securities 4 0000850429-21-000014.rtf 0000850429-21-000014.xls 0000850429-21-000014.pdf View HTML 02/16/2021 An amendment to the SC 13G filing SC 13G/A 0000354204-21-000580.rtf 0000354204-21-000580.xls 0000354204-21-000580.pdf View HTML Pagination First page « First Previous page ‹ Previous … Page 5 Page 6 Page 7 Page 8 Current page 9 Page 10 Page 11 Page 12 Page 13 … Next page Next › Last page Last » Data provided by Kaleidoscope.