Overview News & Events Press Releases Events & Presentations Analyst Coverage Stock Information Stock Quote & Chart Financials & Filings SEC Filings Corporate Governance Documents & Charters Management Board of Directors Committee Composition Resources Investor FAQs Email Alerts Contact IR Overview News & Events Press Releases Events & Presentations Analyst Coverage Stock Information Stock Quote & Chart Financials & Filings SEC Filings Corporate Governance Documents & Charters Management Board of Directors Committee Composition Resources Investor FAQs Email Alerts Contact IR SEC Filings Group 3,4,5Annual FilingsCurrent ReportsMergers & AcquisitionsOtherProxy FilingsQuarterly FilingsRegistration Statements Filing year - Any -2023202220212020 Items per page 102550 Filing date Description Form View May 19, 2022 Preliminary information statement containing contested solicitations PREC14C 0001193125-22-155139.pdf 0001193125-22-155139.rtf 0001193125-22-155139.xls View HTML May 19, 2022 Report of unscheduled material events or corporate event 8-K 0001193125-22-155156.pdf 0001193125-22-155156.rtf 0001193125-22-155156.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML May 19, 2022 Additional information statement materials - definitive DEFA14C 0001193125-22-155177.pdf 0001193125-22-155177.rtf View HTML May 13, 2022 Report of unscheduled material events or corporate event 8-K 0001193125-22-149345.pdf 0001193125-22-149345.rtf 0001193125-22-149345.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML May 13, 2022 Quarterly report which provides a continuing view of a company's financial position 10-Q 0000950170-22-009799.pdf 0000950170-22-009799.rtf 0000950170-22-009799.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML May 13, 2022 Securities offered to employees pursuant to employee benefit plans S-8 0001193125-22-149581.pdf 0001193125-22-149581.rtf 0001193125-22-149581.xls View HTML Apr 29, 2022 Definitive proxy statement in connection with contested solicitations DEFC14A 0001193125-22-133527.pdf 0001193125-22-133527.rtf 0001193125-22-133527.xls View HTML Apr 29, 2022 Amendment to a previously filed 10-K 10-K/A 0001193125-22-134035.pdf 0001193125-22-134035.rtf 0001193125-22-134035.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML Apr 27, 2022 Non-management revised preliminary proxy soliciting materials PRRN14A 0001193125-22-122799.pdf 0001193125-22-122799.rtf 0001193125-22-122799.xls View HTML Apr 26, 2022 An amendment to a SC 13D filing SC 13D/A 0001193125-22-118250.pdf 0001193125-22-118250.rtf 0001193125-22-118250.xls View HTML First page « First Previous page ‹ Previous … Page 5 Page 6 Page 7 Page 8 Current page 9 Page 10 Page 11 Page 12 Page 13 … Next page Next › Last page Last » Data provided by Kaleidoscope.
Group 3,4,5Annual FilingsCurrent ReportsMergers & AcquisitionsOtherProxy FilingsQuarterly FilingsRegistration Statements Filing year - Any -2023202220212020 Items per page 102550 Filing date Description Form View May 19, 2022 Preliminary information statement containing contested solicitations PREC14C 0001193125-22-155139.pdf 0001193125-22-155139.rtf 0001193125-22-155139.xls View HTML May 19, 2022 Report of unscheduled material events or corporate event 8-K 0001193125-22-155156.pdf 0001193125-22-155156.rtf 0001193125-22-155156.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML May 19, 2022 Additional information statement materials - definitive DEFA14C 0001193125-22-155177.pdf 0001193125-22-155177.rtf View HTML May 13, 2022 Report of unscheduled material events or corporate event 8-K 0001193125-22-149345.pdf 0001193125-22-149345.rtf 0001193125-22-149345.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML May 13, 2022 Quarterly report which provides a continuing view of a company's financial position 10-Q 0000950170-22-009799.pdf 0000950170-22-009799.rtf 0000950170-22-009799.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML May 13, 2022 Securities offered to employees pursuant to employee benefit plans S-8 0001193125-22-149581.pdf 0001193125-22-149581.rtf 0001193125-22-149581.xls View HTML Apr 29, 2022 Definitive proxy statement in connection with contested solicitations DEFC14A 0001193125-22-133527.pdf 0001193125-22-133527.rtf 0001193125-22-133527.xls View HTML Apr 29, 2022 Amendment to a previously filed 10-K 10-K/A 0001193125-22-134035.pdf 0001193125-22-134035.rtf 0001193125-22-134035.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA View HTML Apr 27, 2022 Non-management revised preliminary proxy soliciting materials PRRN14A 0001193125-22-122799.pdf 0001193125-22-122799.rtf 0001193125-22-122799.xls View HTML Apr 26, 2022 An amendment to a SC 13D filing SC 13D/A 0001193125-22-118250.pdf 0001193125-22-118250.rtf 0001193125-22-118250.xls View HTML First page « First Previous page ‹ Previous … Page 5 Page 6 Page 7 Page 8 Current page 9 Page 10 Page 11 Page 12 Page 13 … Next page Next › Last page Last » Data provided by Kaleidoscope.