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SEC Filings Group 3,4,5Annual FilingsCurrent ReportsMergers & AcquisitionsOtherProxy FilingsQuarterly FilingsRegistration Statements Filing year - Any -202420232022202120202019201820172016201520142013201220112010200920082007200620052004200320022001200019991998199719961995 Items per page 102550 Filing date Form Description Filing Group View April 02, 2013 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-13-000072.pdf 0000790816-13-000072.rtf View HTML April 02, 2013 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-13-000076.pdf 0000790816-13-000076.rtf View HTML April 02, 2013 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-13-000070.pdf 0000790816-13-000070.rtf View HTML April 02, 2013 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-13-000075.pdf 0000790816-13-000075.rtf View HTML March 28, 2013 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-13-000062.pdf 0000790816-13-000062.rtf View HTML March 25, 2013 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-13-000060.pdf 0000790816-13-000060.rtf View HTML March 11, 2013 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-13-000058.pdf 0000790816-13-000058.rtf View HTML March 05, 2013 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-13-000049.pdf 0000790816-13-000049.rtf View HTML March 05, 2013 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-13-000056.pdf 0000790816-13-000056.rtf View HTML March 05, 2013 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-13-000054.pdf 0000790816-13-000054.rtf View HTML Pagination First page « First Previous page ‹ Previous … Page 68 Page 69 Page 70 Page 71 Current page 72 Page 73 Page 74 Page 75 Page 76 … Next page Next › Last page Last » Data provided by Kaleidoscope.