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 -202420232022202120202019201820172016201520142013201220112010200920082007200620052004200320022001200019991998199719961995 Items per page 102550 Filing date Form Description Filing Group View October 27, 2015 10-Q Quarterly report which provides a continuing view of a company's financial position Quarterly Filings 0000790816-15-000117.pdf 0000790816-15-000117.rtf 0000790816-15-000117.xls EX-101.INS - XBRL INSTANCE DOCUMENT View HTML October 26, 2015 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-15-000115.pdf 0000790816-15-000115.rtf View HTML October 26, 2015 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-15-000114.pdf 0000790816-15-000114.rtf View HTML October 22, 2015 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-15-000110.pdf 0000790816-15-000110.rtf 0000790816-15-000110.xls View HTML October 05, 2015 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-15-000108.pdf 0000790816-15-000108.rtf 0000790816-15-000108.xls View HTML August 19, 2015 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-15-000106.pdf 0000790816-15-000106.rtf 0000790816-15-000106.xls View HTML August 13, 2015 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-15-000104.pdf 0000790816-15-000104.rtf 0000790816-15-000104.xls View HTML August 10, 2015 SC 13G/A An amendment to the SC 13G filing Other 0001284812-15-000210.pdf 0001284812-15-000210.rtf View HTML July 27, 2015 10-Q Quarterly report which provides a continuing view of a company's financial position Quarterly Filings 0000790816-15-000102.pdf 0000790816-15-000102.rtf 0000790816-15-000102.xls EX-101.INS - XBRL INSTANCE DOCUMENT View HTML July 23, 2015 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-15-000100.pdf 0000790816-15-000100.rtf 0000790816-15-000100.xls View HTML Pagination First page « First Previous page ‹ Previous … Page 50 Page 51 Page 52 Page 53 Current page 54 Page 55 Page 56 Page 57 Page 58 … 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 -202420232022202120202019201820172016201520142013201220112010200920082007200620052004200320022001200019991998199719961995 Items per page 102550 Filing date Form Description Filing Group View October 27, 2015 10-Q Quarterly report which provides a continuing view of a company's financial position Quarterly Filings 0000790816-15-000117.pdf 0000790816-15-000117.rtf 0000790816-15-000117.xls EX-101.INS - XBRL INSTANCE DOCUMENT View HTML October 26, 2015 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-15-000115.pdf 0000790816-15-000115.rtf View HTML October 26, 2015 4 Statement of changes in beneficial ownership of securities 3,4,5 0000790816-15-000114.pdf 0000790816-15-000114.rtf View HTML October 22, 2015 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-15-000110.pdf 0000790816-15-000110.rtf 0000790816-15-000110.xls View HTML October 05, 2015 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-15-000108.pdf 0000790816-15-000108.rtf 0000790816-15-000108.xls View HTML August 19, 2015 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-15-000106.pdf 0000790816-15-000106.rtf 0000790816-15-000106.xls View HTML August 13, 2015 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-15-000104.pdf 0000790816-15-000104.rtf 0000790816-15-000104.xls View HTML August 10, 2015 SC 13G/A An amendment to the SC 13G filing Other 0001284812-15-000210.pdf 0001284812-15-000210.rtf View HTML July 27, 2015 10-Q Quarterly report which provides a continuing view of a company's financial position Quarterly Filings 0000790816-15-000102.pdf 0000790816-15-000102.rtf 0000790816-15-000102.xls EX-101.INS - XBRL INSTANCE DOCUMENT View HTML July 23, 2015 8-K Report of unscheduled material events or corporate event Current Reports 0000790816-15-000100.pdf 0000790816-15-000100.rtf 0000790816-15-000100.xls View HTML Pagination First page « First Previous page ‹ Previous … Page 50 Page 51 Page 52 Page 53 Current page 54 Page 55 Page 56 Page 57 Page 58 … Next page Next › Last page Last » Data provided by Kaleidoscope.
