Koppers Holdings Inc

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Koppers Holdings Inc
TickerKOP
CIK #0001315257
CUSIP50060P106
SectorManufacturing - Lumber & Wood Products (No Furniture)
Address436 Seventh Avenue, Pittsburgh, PA 15219
Source [EDGAR]
CIK Filing 2011 - 2026
[0001315257] 10-K
[0001315257] 10-Q
[0001315257] 3
[0001315257] 4
[0001315257] 5
[0001315257] 8-K
[0001315257] SC 13D
[0001315257] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Simcoe Capital Management LLC Koppers Holdings Inc [2026-05-19] 0.0
Vanguard Capital Management LLC Koppers Holdings Inc [2026-04-30] 0.0
Pzena Investment Management LLC Koppers Holdings Inc [2025-04-28] 0.0
Dimensional Fund Advisors LP Koppers Holdings Inc [2024-02-09] 5.7
BlackRock Inc Koppers Holdings Inc [2023-01-20] 16.8
Rubric Capital Management LP Koppers Holdings Inc [2022-02-14] 5.21
SouthernSun Asset Management LLC Koppers Holdings Inc [2021-02-12] 2.64
SouthernSun Asset Management LLC Koppers Holdings Inc [2020-02-14] 4.6
Vanguard Group Inc Koppers Holdings Inc [2019-04-08] 10.36
SouthernSun Asset Management LLC Koppers Holdings Inc [2019-02-14] 9.81
State Street Corp Koppers Holdings Inc [2019-02-14] 6.1
Division of Investment Department of the Treasury State of New Jersey Koppers Holdings Inc [2018-11-15] 5.14
SouthernSun Asset Management LLC Koppers Holdings Inc [2018-02-14] 3.74
SouthernSun Asset Management LLC Koppers Holdings Inc [2017-02-14] 5.36
SouthernSun Asset Management LLC Koppers Holdings Inc [2016-02-12] 6.65
RBC Global Asset Management US Koppers Holdings Inc [2016-02-10] 5.1
SouthernSun Asset Management LLC Koppers Holdings Inc [2015-09-04] 8.81
SouthernSun Asset Management LLC Koppers Holdings Inc [2015-02-13] 13.59
Wellington Management Co LLP Koppers Holdings Inc [2014-02-14] 5.13
SouthernSun Asset Management LLC Koppers Holdings Inc [2013-02-13] 9.83
SouthernSun Asset Management LLC Koppers Holdings Inc [2012-02-10] 10.46
Vanguard Group Inc Koppers Holdings Inc [2012-02-09] 5.41
Form 3/4/5 Filer 2011 - 2026
Koppers Holdings Inc
Ball M Leroy
Sandifer Andrew D
Feng Xudong
Motley David L
Wilkerson Sonja Michelle
Brenner Eric D
Pearce Bradley A
Vartanian Nishan J
Neupaver Albert J
Jensen Traci L
Posadas Laura J
Sullivan James A
Lucas Stephen G
Apostolou Stephanie L
Lovalekar Tushar
Smith Jimmi Sue
Washington Kevin
Testoni Louis L
Tritch Stephen R
Skrovanek Daniel J
Dowd Joseph P
Hyde Leslie S
Groves Daniel R
Zugay Michael
Lacy Steven R
Johnson R Michael
Fenwick Douglas J
Nielsen Christian A
Reeder Stephen C
Loadman Thomas D
McCormack Mark R
Zhu Jianzhong
Tronsberg-Deihle Louann E
Baldwin Cynthia A
Young T Michael
Hillenbrand David M
Spiess Markus G
Turner Walter W
Dietz James T
Goydan Paul A
McCurrie Brian H
Evans Donald E
Stalder James C
Mancione Michael J
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Feng Xudong
Dividend Equivalent Rights · derivative
2026-03-23 Grant 29.91 $0.00
Motley David L
Dividend Equivalent Rights · derivative
2026-03-23 Grant 25.35 $0.00
Sandifer Andrew D
Dividend Equivalent Rights · derivative
2026-03-23 Grant 50 $0.00
Sandifer Andrew D
Dividend Equivalent Rights · derivative
2026-03-23 Grant 5.27 $0.00
Posadas Laura J
Dividend Equivalent Rights · derivative
2026-03-23 Grant 11 $0.00
Wilkerson Sonja Michelle
Dividend Equivalent Rights · derivative
2026-03-23 Grant 25.35 $0.00
Wilkerson Sonja Michelle
Dividend Equivalent Rights · derivative
2026-03-23 Grant 50 $0.00
Jensen Traci L
Dividend Equivalent Rights · derivative
2026-03-23 Grant 50 $0.00
Feng Xudong
Dividend Equivalent Rights · derivative
2026-03-23 Grant 50 $0.00
Neupaver Albert J
Dividend Equivalent Rights · derivative
2026-03-23 Grant 50 $0.00
Vartanian Nishan J
Dividend Equivalent Rights · derivative
2026-03-23 Grant 50 $0.00
Motley David L
Dividend Equivalent Rights · derivative
2026-03-23 Grant 50 $0.00
Ball M Leroy
Common Stock
2026-03-17 Sell 2,489 $37.91 94,358
Ball M Leroy
Common Stock
2026-03-17 Gift 1,200 $0.00
Ball M Leroy
Common Stock
2026-03-02 Gift 325 $0.00
Ball M Leroy
Common Stock
2026-03-02 Sell 328 $37.45 12,284
Ball M Leroy
Common Stock
2026-03-02 Sell 3,763 $37.02 139,306
Ball M Leroy
Common Stock
2026-03-02 Sell 2,184 $36.53 79,782
Apostolou Stephanie L
Common Stock
2026-02-26 Tax withheld 3,149 $37.24 117,269
Lovalekar Tushar
Common Stock
2026-02-26 Grant 2,303 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 205 17,944,502
2025-12-31 193 19,141,018
2025-09-30 202 17,368,469
2025-06-30 204 17,782,921
2025-03-31 187 18,858,329
2024-12-31 192 18,794,269
2024-09-30 192 17,893,934
2024-06-30 185 18,129,760
2024-03-31 185 19,781,559
2023-12-31 182 19,157,922
2023-09-30 169 18,200,043
2023-06-30 154 17,764,159
Form 13F Holdings
Firm Period DFND Voting Shares
Louisiana State Employees Retirement System [2026-06-30] SOLE 8,700 8,700
Alaska Retirement Management Board [2026-06-30] SOLE 7,156 7,156
Yousif Capital Management LLC [2026-06-30] SOLE 1,182 4,832
Commonwealth of Pennsylvania Public School Empls Retrmt SYS [2026-06-30] SOLE 4,561 4,561
Wealth Enhancement Advisory Services LLC [2026-06-30] SOLE 320 4,302
Gamma Investing LLC [2026-06-30] DFND 978 978
Versant Capital Management Inc [2026-06-30] SOLE 715 715
Trust Co of Toledo NA /OH/ [2026-06-30] DFND 191 191
LRI Investments LLC [2026-06-30] SOLE 146 146
Farther Finance Advisors LLC [2026-06-30] SOLE 0 109
IFP Advisors LLC [2026-06-30] SOLE 87 87
Dogwood Wealth Management LLC [2026-06-30] SOLE 60 60
Cedar Mountain Advisors LLC [2026-06-30] SOLE 0 35
Farmers & Merchants Investments Inc [2026-06-30] SOLE 13 13
Capital Advisors Ltd LLC [2026-06-30] SOLE 0 12
JFS Wealth Advisors LLC [2026-06-30] SOLE 0 3
True Wealth Design LLC [2026-06-30] SOLE 0 2
Davis Capital Management [2026-06-30] SOLE 1 1
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