IR Nav OverviewCorporate GovernanceLeadershipNews & EventsPress ReleasesEvents & PresentationsStock InformationStock Quote & ChartHistoric Price LookupInvestment CalculatorDividendsAnalyst CoverageFinancial InformationSEC FilingsAnnual Reports & ProxyCEO Annual LetterFinancial ReportsFinancial Fundamentals1099 ReportingDRIP PlanTax Basis InformationIR ResourcesContact IREmail Alerts SEC Filings SEC Filings Group 3,4,5Annual FilingsCurrent ReportsMergers & AcquisitionsOtherProxy FilingsQuarterly FilingsRegistration Statements Filing year - Any -2025202420232022202120202019201820172016201520142013201220112010200920082007200620052004200320022001200019991998199719961995 Items per page 102550 Filing date Form Description Filing Group View March 05, 2012 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-12-000027.pdf 0000790816-12-000027.rtf View HTML March 05, 2012 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-12-000028.pdf 0000790816-12-000028.rtf View HTML March 05, 2012 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-12-000029.pdf 0000790816-12-000029.rtf View HTML February 24, 2012 10-K Annual report which provides a comprehensive overview of the company for the past year Annual Filings 0000790816-12-000009.pdf 0000790816-12-000009.rtf 0000790816-12-000009.xls EX-101.INS - XBRL INSTANCE DOCUMENT View HTML February 15, 2012 SC 13G A statement of beneficial ownership of common stock by certain persons Other View HTML February 14, 2012 SC 13G/A An amendment to the SC 13G filing Other View HTML February 14, 2012 SC 13G A statement of beneficial ownership of common stock by certain persons Other 0001193125-12-058948.pdf 0001193125-12-058948.rtf 0001193125-12-058948.xls View HTML February 13, 2012 SC 13G/A An amendment to the SC 13G filing Other View HTML February 10, 2012 SC 13G A statement of beneficial ownership of common stock by certain persons Other View HTML February 09, 2012 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-12-000006.pdf 0000790816-12-000006.rtf 0000790816-12-000006.xls View HTML Pagination First page « First Previous page ‹ Previous … Page 80 Page 81 Page 82 Page 83 Current page 84 Page 85 Page 86 Page 87 Page 88 … Next page Next › Last page Last » Data provided by Kaleidoscope. Toolkit Print Page Email Alerts RSS Feeds Contact IR
SEC Filings Group 3,4,5Annual FilingsCurrent ReportsMergers & AcquisitionsOtherProxy FilingsQuarterly FilingsRegistration Statements Filing year - Any -2025202420232022202120202019201820172016201520142013201220112010200920082007200620052004200320022001200019991998199719961995 Items per page 102550 Filing date Form Description Filing Group View March 05, 2012 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-12-000027.pdf 0000790816-12-000027.rtf View HTML March 05, 2012 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-12-000028.pdf 0000790816-12-000028.rtf View HTML March 05, 2012 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-12-000029.pdf 0000790816-12-000029.rtf View HTML February 24, 2012 10-K Annual report which provides a comprehensive overview of the company for the past year Annual Filings 0000790816-12-000009.pdf 0000790816-12-000009.rtf 0000790816-12-000009.xls EX-101.INS - XBRL INSTANCE DOCUMENT View HTML February 15, 2012 SC 13G A statement of beneficial ownership of common stock by certain persons Other View HTML February 14, 2012 SC 13G/A An amendment to the SC 13G filing Other View HTML February 14, 2012 SC 13G A statement of beneficial ownership of common stock by certain persons Other 0001193125-12-058948.pdf 0001193125-12-058948.rtf 0001193125-12-058948.xls View HTML February 13, 2012 SC 13G/A An amendment to the SC 13G filing Other View HTML February 10, 2012 SC 13G A statement of beneficial ownership of common stock by certain persons Other View HTML February 09, 2012 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-12-000006.pdf 0000790816-12-000006.rtf 0000790816-12-000006.xls View HTML Pagination First page « First Previous page ‹ Previous … Page 80 Page 81 Page 82 Page 83 Current page 84 Page 85 Page 86 Page 87 Page 88 … Next page Next › Last page Last » Data provided by Kaleidoscope.