Stock Ownership/KOP

KOPPERS HOLDINGS INC (KOP): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in KOP · Materials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
9
13F filers
Aggregate Value
$74.9M
Across holders
Last Price
$45.83
2026-08-24
Sector
Materials
GICS
Quarterly fund activity4 increased4 reduced3 exited
Full exits: RENAISSANCE TECHNOLOGIES LLC, BALYASNY ASSET MANAGEMENT LLC, MILLENNIUM MANAGEMENT LLC
Institutional Holders of KOP
↗
9 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
PZENA INVESTMENT MANAGEMENT LLC
CIK 0001027796
Institutional Manager1.06M$47.7M63.7%0.1%Reduced$-6.6MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund266K$11.9M16.0%0.0%Reduced$-6.8MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund189K$8.5M11.3%0.0%Added+$1.2MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund78K$3.5M4.7%0.0%Reduced+$3.5MQ2 2026
GAMCO INVESTORS, INC. ET AL
CIK 0000807249
Institutional Manager29K$1.3M1.7%0.0%Unchanged+$0Q2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund20K$919K1.2%0.0%Added+$357KQ2 2026
Gotham Asset Management, LLC
CIK 0001510387
Hedge Fund12K$517K0.7%0.0%Added—Q2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund11K$508K0.7%0.0%Added+$258KQ2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund273$12K0.0%0.0%Reduced$-15KQ2 2026
PZENA INVESTMENT MANAGEMENT LLCReduced
Institutional Manager
$47.7M· 63.7% of total· 0.1% port· 1.06M sh· $-6.6M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$11.9M· 16.0% of total· 0.0% port· 266K sh· $-6.8M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$8.5M· 11.3% of total· 0.0% port· 189K sh· +$1.2M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCReduced
Hedge Fund
$3.5M· 4.7% of total· 0.0% port· 78K sh· +$3.5M QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALUnchanged
Institutional Manager
$1.3M· 1.7% of total· 0.0% port· 29K sh· +$0 QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$919K· 1.2% of total· 0.0% port· 20K sh· +$357K QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$517K· 0.7% of total· 0.0% port· 12K sh· — QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$508K· 0.7% of total· 0.0% port· 11K sh· +$258K QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$12K· 0.0% of total· 0.0% port· 273 sh· $-15K QoQ· Q2 2026
Loading recent insider activity…
← Stock ownership