Koppers Holdings Inc.
corporate_fare Company Profile
Koppers Holdings Inc. (NYSE:KOP) is a publicly traded company in the Manufacturing sector. Wiseek has independently scored 13 items for KOP at importance 7 or higher on its 1–10 market-impact scale. Its most recent item scored 7 or higher is dated 2026-08-07, rated 7/10. Across its 13 most recent items scored 7 or higher, the top rating is 8/10, with 6 rated 8 or above. Recent SEC coverage for KOP spans 144, 10-Q, 8-K, SCHEDULE 13D.
Recent high-impact activity:
- Officer James Sullivan Files to Sell $4M in Koppers Stock Near 52-Week High
- Koppers Q2 GAAP loss of $147.5M includes $215.8M impairment; adjusted EBITDA falls 7.9%
- Koppers Q2: $147.5M Net Loss on $215.8M Impairment; Guidance Narrowed
- Activist Investor Simcoe Capital Discloses 7.0% Stake in Koppers Holdings, Citing Undervaluation
- Koppers Appoints Eric Brenner as New Chief Financial Officer and Treasurer
Financial Snapshot
Short Interest & Short Volume
4.75 days to coverFINRA reported short interest of 769,075 shares in KOP as of the September 15, 2026 settlement, a 19.1% decrease from the prior period — about 4.8 days to cover at its recent average daily volume. On October 2, 2026, 42.1% of KOP volume reported to FINRA trade-reporting facilities was marked short.
Daily short sale volume covers trades reported to FINRA trade-reporting facilities and is not the same as short interest (bi-monthly reported positions). Source: FINRA — FINRA is the owner and source of this short interest and short sale volume data; it may not be redistributed.