SEC Filings

Filing date	Form	Description	View
May 24, 2021	4	Statement of changes in beneficial ownership of securities	0000046080-21-000071.pdf 0000046080-21-000071.rtf 0000046080-21-000071.xls
May 24, 2021	4	Statement of changes in beneficial ownership of securities	0000046080-21-000072.pdf 0000046080-21-000072.rtf 0000046080-21-000072.xls
May 24, 2021	4	Statement of changes in beneficial ownership of securities	0000046080-21-000073.pdf 0000046080-21-000073.rtf 0000046080-21-000073.xls
May 24, 2021	4/A	Amendment to a previously filed 4	0000046080-21-000074.pdf 0000046080-21-000074.rtf 0000046080-21-000074.xls
May 24, 2021	4/A	Amendment to a previously filed 4	0000046080-21-000075.pdf 0000046080-21-000075.rtf 0000046080-21-000075.xls
May 24, 2021	4	Statement of changes in beneficial ownership of securities	0000046080-21-000076.pdf 0000046080-21-000076.rtf 0000046080-21-000076.xls
May 21, 2021	8-K	Report of unscheduled material events or corporate event	0000046080-21-000061.pdf 0000046080-21-000061.rtf 0000046080-21-000061.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
May 20, 2021	4	Statement of changes in beneficial ownership of securities	0000046080-21-000059.pdf 0000046080-21-000059.rtf 0000046080-21-000059.xls
May 18, 2021	4	Statement of changes in beneficial ownership of securities	0000046080-21-000058.pdf 0000046080-21-000058.rtf 0000046080-21-000058.xls
May 12, 2021	4	Statement of changes in beneficial ownership of securities	0000046080-21-000057.pdf 0000046080-21-000057.rtf 0000046080-21-000057.xls

Data provided by Kaleidoscope.