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Koppers Holdings Inc. (KOP) institutional ownership

Latest close $50.22 Jul 24, 2026
Market cap$893M 52-week range SectorBasic Materials
Funds holding · Q1 2026
180
reported KOP position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
97 buyers · 83 sellers

Koppers Holdings Inc. (KOP) price and institutional activity

Dates

Q1 2026

$0 bought by 97 investors
Two Sigma Investments, LPArrowstreet Capital, Limited Partnership +95 more
$0 sold by 83 investors
BlackRockSchwab +81 more
Bought Sold Totals per quarter; hover a bar for the names.

Koppers Holdings Inc. (KOP) institutional activity · 180

Investor Type Est. change Change Δ Own Date
BlackRock · Reduced
Change −658K Date Q1 2026
BlackRock Reduced· Q1 2026 −658K Q1 2026
Two Sigma Investments, LP · Added
Change +222K Δ Own +113.6% Date Q1 2026
Two Sigma Investments, LP Added· Q1 2026 +222K +113.6% Q1 2026
Arrowstreet Capital, Limited Partnership · New
Change +162K Date Q1 2026
Arrowstreet Capital, Limited Partnership New· Q1 2026 +162K Q1 2026
Jane Street Group, LLC · New
Change +147K Date Q1 2026
Jane Street Group, LLC New· Q1 2026 +147K Q1 2026
Simcoe Capital Management, LLC · Added
Change +131K Date Q1 2026
Simcoe Capital Management, LLC Added· Q1 2026 +131K Q1 2026
American Century Companies Inc · Added
Change +116K Date Q1 2026
American Century Companies Inc Added· Q1 2026 +116K Q1 2026
Schwab · Reduced
Change −91K Date Q1 2026
Schwab Reduced· Q1 2026 −91K Q1 2026
Lord, Abbett & Co. LLC · New
Change +90K Date Q1 2026
Lord, Abbett & Co. LLC New· Q1 2026 +90K Q1 2026
Two Sigma Advisers, LP · Exited
Change −75K Δ Own −100.0% Date Q1 2026
Two Sigma Advisers, LP Exited· Q1 2026 −75K −100.0% Q1 2026
Intech Investment Management LLC · Reduced
Change −62K Date Q1 2026
Intech Investment Management LLC Reduced· Q1 2026 −62K Q1 2026
Skylands Capital, LLC · Reduced
Change −60K Date Q1 2026
Skylands Capital, LLC Reduced· Q1 2026 −60K Q1 2026
Lazard Asset Management LLC · Reduced
Change −58K Date Q1 2026
Lazard Asset Management LLC Reduced· Q1 2026 −58K Q1 2026
Denali Advisors LLC · New
Change +55K Date Q1 2026
Denali Advisors LLC New· Q1 2026 +55K Q1 2026
Squarepoint Ops LLC · Reduced
Change −43K Date Q1 2026
Squarepoint Ops LLC Reduced· Q1 2026 −43K Q1 2026
Exoduspoint Capital Management, LP · Exited
Change −43K Δ Own −100.0% Date Q1 2026
Exoduspoint Capital Management, LP Exited· Q1 2026 −43K −100.0% Q1 2026
Data through Q1 2026 · filed Jun 2, 2026
15 of 180

Famous investor activity in Koppers Holdings Inc. (KOP)

Koppers Holdings Inc. (KOP) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Ball M. Leroy · Director Sell −$150K
Price $43.90 Qty −3K Owned 436K ΔOwn −0.8% Trade date Jun 18, 2026 Filed date Jun 23, 2026
Ball M. Leroy Director Sell $43.90 −3K −$150K 436K −0.8% Jun 18, 2026 Jun 23, 2026
Feng Xudong · Director Grant (A) 34
Owned 412 Trade date Jun 15, 2026 Filed date Jun 17, 2026
Feng Xudong Director Grant (A) 34 412 Jun 15, 2026 Jun 17, 2026
Wilkerson Sonja Michelle · Director Grant (A) 30
Owned 356 Trade date Jun 15, 2026 Filed date Jun 17, 2026
Wilkerson Sonja Michelle Director Grant (A) 30 356 Jun 15, 2026 Jun 17, 2026
Motley David L. · Director Grant (A) 21
Owned 296 Trade date Jun 15, 2026 Filed date Jun 17, 2026
Motley David L. Director Grant (A) 21 296 Jun 15, 2026 Jun 17, 2026
Sandifer Andrew D. · Director Grant (A) 14
Owned 103 Trade date Jun 15, 2026 Filed date Jun 17, 2026
Sandifer Andrew D. Director Grant (A) 14 103 Jun 15, 2026 Jun 17, 2026
Ball M. Leroy · Director Sell −$171K
Price $41.34 Qty −4K Owned 440K Trade date Jun 11, 2026 Filed date Jun 15, 2026
Ball M. Leroy Director Sell $41.34 −4K −$171K 440K Jun 11, 2026 Jun 15, 2026
Ball M. Leroy · Director Gift (G) -300
Owned 440K Trade date Jun 11, 2026 Filed date Jun 15, 2026
Ball M. Leroy Director Gift (G) -300 440K Jun 11, 2026 Jun 15, 2026
Feng Xudong · Director Gift (G) -6K
Owned 26K Trade date Jun 3, 2026 Filed date Jun 4, 2026
Feng Xudong Director Gift (G) -6K 26K Jun 3, 2026 Jun 4, 2026
Brenner Eric D. · Officer Grant (A) 7K
Owned 7K Trade date May 26, 2026 Filed date May 27, 2026
Brenner Eric D. Officer Grant (A) 7K 7K May 26, 2026 May 27, 2026
Ball M. Leroy · Director Sell −$113K
Price $42.55 Qty −3K Owned 444K Trade date May 13, 2026 Filed date May 14, 2026
Ball M. Leroy Director Sell $42.55 −3K −$113K 444K May 13, 2026 May 14, 2026
Pearce Bradley A. · Officer Grant (A) 5K
Owned 43K Trade date May 12, 2026 Filed date May 14, 2026
Pearce Bradley A. Officer Grant (A) 5K 43K May 12, 2026 May 14, 2026
Motley David L. · Director 2 operations 0
Owned 276 Trade date May 7, 2026 Filed date May 11, 2026
Motley David L. Director 2 operations 0 276 May 7, 2026 May 11, 2026
Motley David L. · Director Grant (A) 3K
Owned 13K Trade date May 7, 2026 Filed date May 11, 2026
Motley David L. Director Grant (A) 3K 13K May 7, 2026 May 11, 2026
Wilkerson Sonja Michelle · Director Grant (A) 3K
Owned 18K Trade date May 7, 2026 Filed date May 11, 2026
Wilkerson Sonja Michelle Director Grant (A) 3K 18K May 7, 2026 May 11, 2026
Sandifer Andrew D. · Director Grant (A) 3K
Owned 10K Trade date May 7, 2026 Filed date May 11, 2026
Sandifer Andrew D. Director Grant (A) 3K 10K May 7, 2026 May 11, 2026
15 of 57
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Koppers Holdings Inc. (KOP) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Blackrock, Inc. 3.8M
% of shares outstanding 18.6% Filing date Nov 8, 2024
Blackrock, Inc. 3.8M 18.6% Nov 8, 2024
BlackRock Inc. 3.4M
% of shares outstanding 16.4% Filing date Jan 22, 2024
BlackRock Inc. 3.4M 16.4% Jan 22, 2024
Blackrock, Inc. 3.0M
% of shares outstanding 15.3% Filing date Apr 24, 2026
Blackrock, Inc. 3.0M 15.3% Apr 24, 2026
Vanguard Group Inc 2.4M
% of shares outstanding 11.4% Filing date Feb 13, 2024
Vanguard Group Inc 2.4M 11.4% Feb 13, 2024
Dimensional Fund Advisors LP 1.2M
% of shares outstanding 5.7% Filing date Feb 9, 2024
Dimensional Fund Advisors LP 1.2M 5.7% Feb 9, 2024
Vanguard Capital Management 984K
% of shares outstanding 5.1% Filing date Apr 30, 2026
Vanguard Capital Management 984K 5.1% Apr 30, 2026
Fuller & Thaler Asset Management, Inc. 979K
% of shares outstanding 5.0% Filing date May 13, 2026
Fuller & Thaler Asset Management, Inc. 979K 5.0% May 13, 2026
Rubric Capital Management LP 1.0M
% of shares outstanding 4.8% Filing date Feb 12, 2024
Rubric Capital Management LP 1.0M 4.8% Feb 12, 2024
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Koppers Holdings Inc. (KOP) ownership FAQ

Who owns KOP?

180 reporting institutions disclosed KOP position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.