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Who owns Koppers Holdings (KOP) stock

205 funds reported Koppers Holdings (KOP) shares in their latest 13F filings, worth $854M in all. The largest holder is BlackRock ($137M). Last quarter 89 funds added to their stakes and 76 cut them.

Largest holders of KOP (13F)Largest holders of KOP (13F)BlackRock$137MSimcoe Capital Management, LLC$63.6MDimensional Fund Advisors LP$55.6MFuller & Thaler Asset Management$42.4MPzena Investment Management LLC$42.2MVanguard Group$41.7MAmerican Century Companies$38.1MVanguard Capital Management LLC$36.5MState Street$36.1MVanguard Portfolio Management LLC$24.2M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock3,047,603$137Mincrease2026-06-30
Simcoe Capital Management, LLC1,416,160$63.6Mincrease2026-06-30
Dimensional Fund Advisors LP1,237,249$55.6Mincrease2026-06-30
Fuller & Thaler Asset Management943,279$42.4Mdecrease2026-06-30
Pzena Investment Management LLC926,505$42.2Mdecrease2026-09-30
Vanguard Group1,540,012$41.7Mincrease2025-12-31
American Century Companies848,068$38.1Mincrease2026-06-30
Vanguard Capital Management LLC812,629$36.5Mdecrease2026-06-30
State Street804,553$36.1Mincrease2026-06-30
Vanguard Portfolio Management LLC539,047$24.2Mincrease2026-06-30
Geode Capital Management, LLC483,417$21.7Mincrease2026-06-30
Quaker Capital Investments, LLC408,555$18.3Mnew2026-06-30
Charles Schwab Investment Management384,122$17.2Mdecrease2026-06-30
Invesco332,605$14.9Mincrease2026-06-30
Ameriprise Financial285,656$12.8Mincrease2026-06-30

Koppers Holdings' latest quarter

Koppers Holdings, Q3 2026: revenue $499M (+3% year over year), operating margin 6.1%, net earnings $14.7M, operating cash flow $30.6M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most KOP stock?

By the latest 13F filings: BlackRock ($137M); Simcoe Capital Management, LLC ($63.6M); Dimensional Fund Advisors LP ($55.6M); Fuller & Thaler Asset Management ($42.4M); Pzena Investment Management LLC ($42.2M).

What is the short interest in KOP?

739,634 shares were sold short at the 2026-10-15 settlement, -7.66% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.