Koppers Holdings Inc. (KOP) on GreekSoup https://greeksoup.ai/stocks/us/kop/ Every dated entry in the public record on Koppers Holdings Inc.: results, filings, insider trades and the rest, from the filings, the last 90 days. en Mon, 12 Oct 2026 00:00:00 +0000 Koppers Holdings Inc.: Schedule 13G/A filed by Dimensional Fund Advisors LP, 6.7% of the classhttps://greeksoup.ai/stocks/us/kop/holders/us:KOP:schedule-13:2026-10-08:36b233c964Thu, 08 Oct 2026 00:00:00 +0000Schedule 13D/13GSchedule 13D/13G. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: short interest 800,969 shares at the 30 September 2026 settlement, 4.47 days to coverhttps://greeksoup.ai/stocks/us/kop/short-interest/us:KOP:short-interest:2026-09-30:aca0af5ec1Wed, 30 Sep 2026 00:00:00 +0000Short interestShort interest. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: short interest 769,075 shares at the 15 September 2026 settlement, 4.75 days to coverhttps://greeksoup.ai/stocks/us/kop/short-interest/us:KOP:short-interest:2026-09-15:6ed0ef03f6Tue, 15 Sep 2026 00:00:00 +0000Short interestShort interest. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Ball M Leroy (CEO) sold 4,000 shares at $45.96 on 31 August 2026, $183,840https://greeksoup.ai/stocks/us/kop/insiders/us:KOP:insider:2026-09-01:5b7abc08e5Tue, 01 Sep 2026 00:00:00 +0000Insider tradeInsider trade. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: short interest 950,642 shares at the 31 August 2026 settlement, 5.84 days to coverhttps://greeksoup.ai/stocks/us/kop/short-interest/us:KOP:short-interest:2026-08-31:13b907f31fMon, 31 Aug 2026 00:00:00 +0000Short interestShort interest. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Ball M Leroy (CEO) sold 3,000 shares at $45.84 on 19 August 2026, $137,520https://greeksoup.ai/stocks/us/kop/insiders/us:KOP:insider:2026-08-20:593f466c74Thu, 20 Aug 2026 00:00:00 +0000Insider tradeInsider trade. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: short interest 781,631 shares at the 14 August 2026 settlement, 3.09 days to coverhttps://greeksoup.ai/stocks/us/kop/short-interest/us:KOP:short-interest:2026-08-14:96dc8ac081Fri, 14 Aug 2026 00:00:00 +0000Short interestShort interest. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Lucas Stephen G (SVP, Culture and Engagement) sold 1,308 shares at $44.55 on 12 August 2026, $58,271https://greeksoup.ai/stocks/us/kop/insiders/us:KOP:insider:2026-08-13:3ddb3ff81eThu, 13 Aug 2026 00:00:00 +0000Insider tradeInsider trade. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Form 144, Lucas Stephen G plans to sell 1,308 shares worth $58,275 around 12 August 2026https://greeksoup.ai/stocks/us/kop/planned-sales/us:KOP:planned-sale:2026-08-12:fd589bdfbfWed, 12 Aug 2026 00:00:00 +0000Form 144Form 144. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Sullivan James A. (President and CTO) sold 7,500 shares at $50.00 on 11 August 2026, $375,000https://greeksoup.ai/stocks/us/kop/insiders/us:KOP:insider:2026-08-12:dd84cd9bdbWed, 12 Aug 2026 00:00:00 +0000Insider tradeInsider trade. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Form 144, Sullivan James A. plans to sell 7,500 shares worth $375,000 around 11 August 2026https://greeksoup.ai/stocks/us/kop/planned-sales/us:KOP:planned-sale:2026-08-11:9e60427f12Tue, 11 Aug 2026 00:00:00 +0000Form 144Form 144. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Pearce Bradley A (CAO) sold 2,000 shares at $51.01 on 10 August 2026, $102,020https://greeksoup.ai/stocks/us/kop/insiders/us:KOP:insider:2026-08-11:910244d06eTue, 11 Aug 2026 00:00:00 +0000Insider tradeInsider trade. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Sullivan James A. (President and CTO) sold 79,900 shares at $50.01 on 7 August 2026, $4.0 millionhttps://greeksoup.ai/stocks/us/kop/insiders/us:KOP:insider:2026-08-11:ce9365d947Tue, 11 Aug 2026 00:00:00 +0000Insider tradeInsider trade. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Sullivan James A. (President and CTO) sold 100 shares at $51.22 on 7 August 2026, $5,122https://greeksoup.ai/stocks/us/kop/insiders/us:KOP:insider:2026-08-11:843bb86774Tue, 11 Aug 2026 00:00:00 +0000Insider tradeInsider trade. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Form 144, Pearce Bradley A plans to sell 2,000 shares worth $102,020 around 10 August 2026https://greeksoup.ai/stocks/us/kop/planned-sales/us:KOP:planned-sale:2026-08-10:3ffe10e981Mon, 10 Aug 2026 00:00:00 +0000Form 144Form 144. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Form 144, Sullivan James A. plans to sell 80,000 shares worth $4.0 million around 7 August 2026https://greeksoup.ai/stocks/us/kop/planned-sales/us:KOP:planned-sale:2026-08-07:92a822c824Fri, 07 Aug 2026 00:00:00 +0000Form 144Form 144. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc. Q2 FY2026 results: revenue $520 million, net income -$148 millionhttps://greeksoup.ai/stocks/us/kop/results/fy2026-q2/us:KOP:result:2026-08-06:e69d415e8eThu, 06 Aug 2026 00:00:00 +0000ResultsResults. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc. filed 10-Q: 10-qhttps://greeksoup.ai/stocks/us/kop/filings/us:KOP:filing:2026-08-06:f57504e97aThu, 06 Aug 2026 00:00:00 +0000SEC filingSEC filing. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc. filed 8-K: results of operationshttps://greeksoup.ai/stocks/us/kop/filings/us:KOP:filing:2026-08-06:13221d2751Thu, 06 Aug 2026 00:00:00 +0000SEC filingSEC filing. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: Schedule 13G/A filed by Vanguard Capital Management, 5.0% of the classhttps://greeksoup.ai/stocks/us/kop/holders/us:KOP:schedule-13:2026-07-31:f4aafb392dFri, 31 Jul 2026 00:00:00 +0000Schedule 13D/13GSchedule 13D/13G. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: short interest 713,171 shares at the 31 July 2026 settlement, 4.55 days to coverhttps://greeksoup.ai/stocks/us/kop/short-interest/us:KOP:short-interest:2026-07-31:80ef6ecfbfFri, 31 Jul 2026 00:00:00 +0000Short interestShort interest. The filing. The page on GreekSoup.

]]> Koppers Holdings Inc.: short interest 753,012 shares at the 15 July 2026 settlement, 5.04 days to coverhttps://greeksoup.ai/stocks/us/kop/short-interest/us:KOP:short-interest:2026-07-15:efe4773f84Wed, 15 Jul 2026 00:00:00 +0000Short interestShort interest. The filing. The page on GreekSoup.

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