Koppers Holdings Inc. Koppers H

Historical 13F Holders

Symbol
KOP
CUSIP
50060P106
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 50060P106 since 12/18/2024, largest first.

Filer % of Class Filed
BlackRock, Inc. 13G/A 15.3% 4/24/2026
Event 3/31/2026
Simcoe Capital Management, LLC 13D
7.0% 5/19/2026
Event 5/12/2026
Dimensional Fund Advisors LP 13G/A 6.7% 10/8/2026
Event 9/30/2026
Pzena Investment Management LLC 13G 6.1% 4/28/2025
Event 3/31/2025
Under 5%, checked the "5 percent or less" box, or amended by a later filing (3)
Fuller & Thaler Asset Management, Inc. 13G/A 4.98% 5/13/2026
Event 3/31/2026
Vanguard Capital Management LLC 13G/A 4.96% 7/31/2026
Event 6/30/2026
Vanguard Group Inc 13G/A 0% 3/27/2026
Event 3/13/2026

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 7 2.11 k $96.4 k
2026 Q2 221 20.3 M $891 M
2026 Q1 209 19.1 M $738 M
2025 Q4 195 20.3 M $551 M
2025 Q3 205 18.6 M $520 M
2025 Q2 210 18.8 M $604 M
2025 Q1 192 18.9 M $531 M
2024 Q4 194 18.8 M $610 M
2024 Q3 196 18.6 M $679 M
2024 Q2 192 19.2 M $711 M
2024 Q1 194 20.7 M $1.14 B
2023 Q4 190 20.1 M $1.03 B
2023 Q3 176 19.0 M $753 M
2023 Q2 159 18.6 M $632 M
2023 Q1 161 18.5 M $648 M
2022 Q4 147 19.1 M $538 M
2022 Q3 142 18.6 M $387 M
2022 Q2 148 18.4 M $417 M
2022 Q1 151 19.0 M $521 M
2021 Q4 155 18.9 M $591 M
2021 Q3 148 19.7 M $616 M
2021 Q2 145 19.3 M $625 M
2021 Q1 156 18.9 M $658 M
2020 Q4 161 19.0 M $594 M
2020 Q3 150 18.4 M $385 M
2020 Q2 140 18.5 M $348 M
2020 Q1 150 19.2 M $236 M
2019 Q4 186 19.2 M $732 M
2019 Q3 166 18.5 M $541 M
2019 Q2 170 19.3 M $566 M
2019 Q1 163 19.5 M $507 M
2018 Q4 155 20.4 M $348 M
2018 Q3 173 19.5 M $608 M
2018 Q2 178 19.2 M $737 M
2018 Q1 185 19.5 M $800 M
2017 Q4 187 19.1 M $972 M
2017 Q3 185 19.0 M $876 M
2017 Q2 173 18.5 M $669 M
2017 Q1 177 19.1 M $808 M
2016 Q4 176 18.6 M $759 M
2016 Q3 156 19.4 M $624 M
2016 Q2 147 18.1 M $556 M
2016 Q1 151 18.4 M $414 M
2015 Q4 151 19.4 M $354 M
2015 Q3 141 20.1 M $405 M
2015 Q2 130 18.7 M $462 M
2015 Q1 113 19.4 M $382 M
2014 Q4 137 22.5 M $584 M
2014 Q3 145 19.4 M $643 M
2014 Q2 155 19.5 M $745 M
2014 Q1 162 18.9 M $779 M