SEC Filings

Form	Description	Filing date	View
SC 13G	A statement of beneficial ownership of common stock by certain persons	Feb 05, 2002	View HTML 0000897423-02-000003.pdf 0000897423-02-000003.xls
SC 13G	A statement of beneficial ownership of common stock by certain persons	Feb 13, 2002	View HTML 0001021408-02-002110.pdf 0001021408-02-002110.xls
SC 13G	A statement of beneficial ownership of common stock by certain persons	Feb 14, 2002	View HTML 0000912057-02-006092.pdf 0000912057-02-006092.xls
SC 13G	A statement of beneficial ownership of common stock by certain persons	Feb 28, 2002	View HTML 0000912057-02-008046.pdf
SC 13G	A statement of beneficial ownership of common stock by certain persons	Sep 25, 2002	View HTML 0000950152-02-007192.pdf 0000950152-02-007192.xls
SC 13G	A statement of beneficial ownership of common stock by certain persons	Feb 04, 2013	View HTML 0001390777-13-000025.pdf
SC 13G	A statement of beneficial ownership of common stock by certain persons	Feb 14, 2013	View HTML 0000315066-13-002203.pdf
SC 13G	A statement of beneficial ownership of common stock by certain persons	Feb 10, 2014	View HTML 0000932471-14-002831.pdf 0000932471-14-002831.xls
SC 13G	A statement of beneficial ownership of common stock by certain persons	Feb 12, 2015	View HTML 0000080255-15-000337.pdf 0000080255-15-000337.xls
SC 13G	A statement of beneficial ownership of common stock by certain persons	Jan 29, 2016	View HTML 0000072971-16-000905.pdf 0000072971-16-000905.xls
SC 13G	A statement of beneficial ownership of common stock by certain persons	Feb 09, 2016	View HTML 0001144204-16-080077.pdf 0001144204-16-080077.xls
SC 13G	A statement of beneficial ownership of common stock by certain persons	Feb 16, 2016	View HTML 0001532155-16-000147.pdf 0001532155-16-000147.xls
SC 13G	A statement of beneficial ownership of common stock by certain persons	Feb 14, 2020	View HTML 0000919574-20-001314.pdf 0000919574-20-001314.xls
DEFA14A	Additional proxy soliciting materials - definitive	Apr 05, 2018	View HTML 0001097149-18-000016.pdf 0001097149-18-000016.xls
DEFA14A	Additional proxy soliciting materials - definitive	Apr 04, 2019	View HTML 0001097149-19-000013.pdf 0001097149-19-000013.xls
DEFA14A	Additional proxy soliciting materials - definitive	Apr 06, 2020	View HTML 0001097149-20-000017.pdf
DEFA14A	Additional proxy soliciting materials - definitive	May 08, 2020	View HTML 0001097149-20-000028.pdf
DEFA14A	Additional proxy soliciting materials - definitive	May 14, 2020	View HTML 0001097149-20-000034.pdf
DEFA14A	Additional proxy soliciting materials - definitive	Apr 07, 2021	View HTML 0001097149-21-000020.pdf
DEFA14A	Additional proxy soliciting materials - definitive	Apr 05, 2022	View HTML 0001097149-22-000016.pdf