KOP — Koppers Holdings Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Dividends
Measured signals that fired on KOP
| date | signal | measured base rate |
|---|---|---|
| 2026-08-13 | Cluster sale: three or more insiders insider | -0.37% over 21 days · t = -3.38 · n = 21,542 statistically distinguishable from its control group |
| 2026-08-04 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-07-14 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-05-07 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-03-17 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-19 | BALL M LEROY CEO | Open-market sale | 3.0K | 45.84 | 137.5K |
| 2026-08-12 | Lucas Stephen G SVP, Culture and Engagement | Open-market sale | 1.3K | 44.55 | 58.3K |
| 2026-08-11 | Sullivan James A. President and CTO | Open-market sale | 7.5K | 50.00 | 375.0K |
| 2026-08-10 | Pearce Bradley A CAO | Open-market sale | 2.0K | 51.01 | 102.0K |
| 2026-08-07 | Sullivan James A. President and CTO | Open-market sale | 79.9K | 50.01 | 4.0M |
| 2026-08-07 | Sullivan James A. President and CTO | Open-market sale | 100 | 51.22 | 5.1K |
| 2026-06-18 | BALL M LEROY CEO | Open-market sale | 3.4K | 43.90 | 149.8K |
| 2026-06-11 | BALL M LEROY CEO | Open-market sale | 4.1K | 41.34 | 171.2K |
| 2026-06-11 | BALL M LEROY CEO | Gift | 300 | 0.00 | 0 |
| 2026-06-03 | Feng Xudong Director | Gift | 5.7K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 117.8M | 3.0M |
| PZENA INVESTMENT MANAGEMENT LLC | 46.8M | 1.2M |
| DIMENSIONAL FUND ADVISORS LP | 46.1M | 1.2M |
| FULLER & THALER ASSET MANAGEMENT, INC. | 37.9M | 978.6K |
| Simcoe Capital Management, LLC | 36.5M | 944.4K |
| VANGUARD CAPITAL MANAGEMENT LLC | 32.5M | 840.4K |
| STATE STREET CORP | 29.1M | 752.3K |
| AMERICAN CENTURY COMPANIES INC | 20.7M | 535.0K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 20.5M | 530.5K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 18.5M | 477.9K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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