Koppers Holdings INC. (KOP) SEC Filings — 2024

Filings

• Koppers Holdings Inc. Enters Material Definitive Agreement — 8-K · Dec 17, 2024
• Koppers Holdings Appoints New CFO, Mike Henderson — 8-K · Dec 9, 2024
• Koppers Holdings Reports Exit/Disposal Activities — 8-K · Dec 5, 2024
• Koppers Holdings INC. SC 13G/A Filing — SC 13G/A · Nov 8, 2024
• Koppers Holdings Q3 2024 10-Q Filed — 10-Q · Nov 8, 2024
• Koppers Holdings INC. SC 13G/A Filing — SC 13G/A · Oct 18, 2024
• Koppers Holdings INC. SC 13G/A Filing — SC 13G/A · Oct 7, 2024
• Koppers Holdings Inc. Files Q2 2024 10-Q — 10-Q · Aug 8, 2024
• Koppers Holdings Inc. Files 10-Q for Period Ending March 31, 2024 — 10-Q · May 3, 2024
• Koppers Holdings Inc. Files 8-K/A Amendment — 8-K/A · May 2, 2024
• Koppers Holdings Inc. Enters Material Definitive Agreement — 8-K · Apr 15, 2024
• Koppers Holdings Inc. Files Definitive Proxy Statement — DEF 14A · Apr 2, 2024
• Koppers Holdings Inc. Files 2023 Annual Report on Form 10-K — 10-K · Feb 28, 2024
• Koppers Holdings INC. SC 13G/A Filing — SC 13G/A · Feb 13, 2024
• Koppers Holdings Reports Officer Changes & Compensation on Feb 13 — 8-K · Feb 13, 2024
• Rubric Capital Maintains 1.0M Share Stake in Koppers Holdings — SC 13G/A · Feb 12, 2024
• Fuller & Thaler Amends Koppers Holdings Stake to 2.05M Shares — SC 13G/A · Feb 12, 2024
• Dimensional Fund Advisors LP Reports Passive Stake in Koppers Holdings Inc. — SC 13G · Feb 9, 2024
• BlackRock Amends Koppers Holdings Stake, Passive Investment — SC 13G/A · Jan 22, 2024
• Koppers Holdings 8-K: Officer/Director Changes, Comp Arrangements — 8-K · Jan 2, 2024