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KOP

Koppers Holdings Inc.

Lumber & Wood Products (No Furniture)NYSELarge accelerated filer

Total Trades

45

Buys

2

Sells

28

Largest Trade

$1M+

Insiders

8

Institutional Funds

154

Inst. Value

$1M+

Activist Filings

19

Insider Trades

InsiderTitleTypeValueSharesPriceDate
BALL M LEROYCEOSELL$100K–$500K6K$36.87Mar 4, 2026
BALL M LEROYCEOSELL$100K–$500K4K$29.27Mar 20, 2025
Tritch Stephen RDirectorSELL$100K–$500K4K$37.08Nov 20, 2024
BALL M LEROYCEOSELL$100K–$500K6K$37.26Nov 20, 2024
BALL M LEROYCEOEXERCISE$100K–$500K6K$17.57Nov 20, 2024
BALL M LEROYCEOEXERCISE$100K–$500K11K$17.57Nov 18, 2024
BALL M LEROYCEOSELL$100K–$500K11K$37.22Nov 18, 2024
BALL M LEROYCEOEXERCISE$100K–$500K9K$17.57Nov 14, 2024
BALL M LEROYCEOSELL$100K–$500K9K$37.87Nov 14, 2024
Pearce Bradley AChief Accounting O…SELL$100K–$500K3K$37.19Nov 13, 2024
BALL M LEROYCEOSELL$100K–$500K4K$38.35Aug 30, 2024
BALL M LEROYCEOSELL$100K–$500K4K$39.06Aug 28, 2024
BALL M LEROYCEOEXERCISE$50K–$100K4K$17.57Aug 28, 2024
Dowd Joseph PVP, Zero HarmSELL$100K–$500K6K$37.72Aug 20, 2024
BALL M LEROYCEOSELL$50K–$100K2K$39.73Jun 20, 2024
BALL M LEROYCEOSELL$100K–$500K5K$43.07Jun 10, 2024
BALL M LEROYCEOEXERCISE$50K–$100K5K$17.57Jun 10, 2024
BALL M LEROYCEOEXERCISE$50K–$100K5K$17.57May 29, 2024
BALL M LEROYCEOSELL$100K–$500K5K$42.75May 29, 2024
Hyde Leslie SSVPSELL$1M+22K$53.91Mar 22, 2024
Hyde Leslie SSVPEXERCISE$100K–$500K22K$22.12Mar 22, 2024
BALL M LEROYPresident and CEOSELL$500K+13K$44.60Dec 4, 2023
BALL M LEROYPresident and CEOEXERCISE$100K–$500K13K$17.57Dec 4, 2023
Hyde Leslie SSVPSELL$500K+18K$45.11Dec 1, 2023
Hyde Leslie SSVPEXERCISE$500K+18K$30.24Dec 1, 2023
Dowd Joseph PVP, Zero HarmSELL$100K–$500K5K$42.46Nov 20, 2023
Dowd Joseph PVP, Zero HarmEXERCISE$100K–$500K5K$37.93Nov 20, 2023
BALL M LEROYPresident and CEOSELL$500K+19K$42.55Nov 16, 2023
BALL M LEROYPresident and CEOEXERCISE$500K+19K$27.31Nov 16, 2023
Hyde Leslie SSVPSELL$100K–$500K10K$40.48Sep 19, 2023
Hyde Leslie SSVPEXERCISE$100K–$500K10K$17.57Sep 19, 2023
Hyde Leslie SSVPSELL$50K–$100K2K$40.00Sep 5, 2023
Hyde Leslie SSVPEXERCISE$15K–$50K2K$17.57Sep 5, 2023
BALL M LEROYPresident and CEOSELL$50K–$100K2K$38.59Aug 31, 2023
Pearce Bradley AChief Accounting O…SELL$100K–$500K3K$38.45Aug 9, 2023
Hyde Leslie SSVPEXERCISE$100K–$500K4K$37.93Aug 3, 2023
Hyde Leslie SSVPSELL$100K–$500K4K$38.56Aug 3, 2023
Dowd Joseph PGlobal VP, Zero HarmSELL$100K–$500K15K$31.42Jun 8, 2023
Dowd Joseph PGlobal VP, Zero HarmEXERCISE$100K–$500K15K$17.96Jun 8, 2023
Skrovanek Daniel JVPBUY<$1K30$32.70Mar 29, 2023
JENSEN TRACI LDirectorBUY<$1K6$32.70Mar 29, 2023
Feng XudongDirectorSELL$50K–$100K2K$24.37May 24, 2022
Pearce Bradley AChief Accounting O…SELL$15K–$50K1K$29.46Mar 21, 2022
Dowd Joseph PGlobal VP, Zero HarmSELL$50K–$100K2K$28.75Mar 2, 2022
Dowd Joseph PGlobal VP, Zero HarmSELL$50K–$100K3K$28.51Mar 1, 2022
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Institutional Ownership

13F filings as of Dec 31, 2025 · 154 funds holding

FundShares
PZENA INVESTMENT MANAGEMENT LLC1.2M
DIMENSIONAL FUND ADVISORS LP1.1M
FULLER & THALER ASSET MANAGEMENT, INC.1.0M
FULLER & THALER ASSET MANAGEMENT, INC.1.0M
LSV ASSET MANAGEMENT945K
Simcoe Capital Management, LLC814K
STATE STREET CORP764K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC568K
Quaker Capital Investments, LLC475K
AMERICAN CENTURY COMPANIES INC419K
GEODE CAPITAL MANAGEMENT, LLC394K
Dana Investment Advisors, Inc.236K
CSM Advisors, LLC177K
Bank of New York Mellon Corp166K
HUNTINGTON NATIONAL BANK165K
Universal- Beteiligungs- und Servicegesellschaft mbH130K
PRINCIPAL FINANCIAL GROUP INC116K
SEIZERT CAPITAL PARTNERS, LLC112K
O'SHAUGHNESSY ASSET MANAGEMENT, LLC104K
AQR CAPITAL MANAGEMENT LLC94K

Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

The Vanguard Group

SC 13G/A · Oct 31, 2025

7.8%

1.5M shares

The Vanguard Group

SC 13G/A · Apr 30, 2025

9.4%

1.9M shares

PZENA INVESTMENT MANAGEMENT LLC

SC 13G · Apr 28, 2025

6.1%

1.2M shares

BlackRock, Inc.

SC 13G/A · Apr 24, 2025

17.8%

3.6M shares

BlackRock, Inc.

SC 13G/A · Feb 5, 2025

19.6%

4.0M shares

BlackRock, Inc.

SC 13G/A · Nov 8, 2024

18.6%

3.8M shares

BlackRock, Inc.

SC 13G/A · Oct 18, 2024

18.6%

3.8M shares

Fuller & Thaler Asset Management, Inc. IRS Identification No. of Above Person 94-3176968

SC 13G/A · Oct 7, 2024

5.8%

1.2M shares

The Vanguard Group - 23-1945930

SC 13G/A · Feb 13, 2024

11.4%

2.4M shares

Fuller & Thaler Asset Management, Inc. IRS Identification No. of Above Person 94-3176968

SC 13G/A · Feb 13, 2024

10.0%

2.1M shares

Rubric Capital Management LP

SC 13G/A · Feb 12, 2024

4.8%

1.0M shares

BlackRock, Inc.

SC 13G/A · Jan 22, 2024

16.4%

3.4M shares

Fuller & Thaler Asset Management, Inc. IRS Identification No. of Above Person 94-3176968

SC 13G/A · Feb 14, 2023

10.6%

2.2M shares

Rubric Capital Management LP

SC 13G/A · Feb 10, 2023

5.4%

1.1M shares

BlackRock, Inc.

SC 13G/A · Jan 26, 2023

16.8%

3.5M shares

BlackRock, Inc.

SC 13G · Jan 20, 2023

16.8%

3.5M shares

Fuller & Thaler Asset Management, Inc. IRS Identification No. of Above Person 94-3176968

SC 13G/A · Mar 2, 2022

10.1%

2.1M shares

Rubric Capital Management LP

SC 13G · Feb 14, 2022

5.2%

1.1M shares

BlackRock, Inc.

SC 13G/A · Jan 28, 2022

16.2%

3.5M shares

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