SEC Filings

Form	Description	Filing date	View
POS AM	Post-effective amendment to an S-Type filing	Apr 19, 2005	View HTML 0001047469-05-010689.pdf 0001047469-05-010689.xls
DEFR14A	DEFR14A	Apr 16, 2024	View HTML 0001097149-24-000023.pdf 0001097149-24-000023.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
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
DEFA14A	Additional proxy soliciting materials - definitive	Apr 05, 2023	View HTML 0001097149-23-000030.pdf
DEFA14A	Additional proxy soliciting materials - definitive	May 01, 2023	View HTML 0001097149-23-000041.pdf
DEFA14A	Additional proxy soliciting materials - definitive	Apr 09, 2024	View HTML 0001097149-24-000019.pdf
DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Apr 18, 2006	View HTML 0001104659-06-025628.pdf 0001104659-06-025628.xls
DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Apr 18, 2007	View HTML 0001104659-07-029067.pdf 0001104659-07-029067.xls
DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Apr 09, 2008	View HTML 0001047469-08-004318.pdf 0001047469-08-004318.xls
DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Apr 22, 2009	View HTML 0001047469-09-004388.pdf 0001047469-09-004388.xls
DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Apr 21, 2010	View HTML 0001193125-10-088370.pdf 0001193125-10-088370.xls
DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Apr 21, 2011	View HTML 0001193125-11-104222.pdf 0001193125-11-104222.xls
DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Apr 18, 2012	View HTML 0001193125-12-168617.pdf 0001193125-12-168617.xls
DEF 14A	Official notification to shareholders of matters to be brought to a vote ("Proxy")	Apr 14, 2003	View HTML 0001012870-03-001735.pdf 0001012870-03-001735.xls