Latest Period
Q1 2026
Security Snapshot
Koppers Holdings Inc. - Common Stock (KOP) Institutional Ownership
CUSIP: 50060P106
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
203
Shares (Excl. Options)
19,091,512
Price
$38.68
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- Security type / class
- Equity / Common Stock
- Symbol
- KOP on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 19,091,512
- Total 13F value
- $738,046,111
- Portfolio coverage rank
- 0%
- Share change
- -177,081
- Value change
- -$2,674,959
- Number of holders
- 203
- Shares outstanding
- 19,271,500
- SEC-reported price per share
- $36.98
- Insider filing price
- $36.98
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- KOP - Koppers Holdings Inc. - Common Stock is tracked under CUSIP 50060P106.
- 203 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 191 to 203 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $522,936,632 to $738,046,111.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 203 institutions filings for Q1 2026.
Security key
50060P106
Latest holder period
Q1 2026
13F holders
203
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
KOP full holder history
Koppers Holdings Inc. SEC filings
Koppers Holdings Inc. company facts
Koppers Holdings Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 50060P106:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
KOP
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 15% | -14% | $114,203,512 | -$24,702,170 | 2,952,521 | -18% | BlackRock, Inc. | 31 Mar 2026 |
| Simcoe Capital Management, LLC | 7% | $49,886,205 | 1,349,005 | Simcoe Capital Management, LLC | 12 May 2026 | |||
| PZENA INVESTMENT MANAGEMENT LLC | 6.1% | $31,009,518 | 1,221,328 | PZENA INVESTMENT MANAGEMENT LLC | 31 Mar 2025 | |||
| VANGUARD CAPITAL MANAGEMENT LLC | 5.1% | $38,044,758 | 983,577 | Vanguard Capital Management | 31 Mar 2026 | |||
| FULLER & THALER ASSET MANAGEMENT, INC. | 5% | $37,851,870 | 978,590 | Fuller & Thaler Asset Management, Inc. | 31 Mar 2026 |
As of 31 Mar 2026, 203 institutional investors reported holding 19,091,512 shares of Koppers Holdings Inc. - Common Stock (KOP). This represents 99% of the company’s total 19,271,500 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
78%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 16% | 3,045,112 | -18% | 0% | $117,784,934 |
| PZENA INVESTMENT MANAGEMENT LLC | 6.3% | 1,209,376 | +0.43% | 0.15% | $46,778,664 |
| DIMENSIONAL FUND ADVISORS LP | 6.2% | 1,191,358 | +1.5% | 0.01% | $46,081,563 |
| FULLER & THALER ASSET MANAGEMENT, INC. | 5.1% | 978,590 | -3.5% | 0.13% | $37,851,870 |
| Simcoe Capital Management, LLC | 4.9% | 944,430 | +16% | 6.8% | $36,530,552 |
| LSV ASSET MANAGEMENT | 4.8% | 926,031 | -2% | 0.08% | $35,819,000 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.4% | 840,446 | 0% | 0% | $32,508,451 |
| STATE STREET CORP | 3.9% | 752,264 | -1.6% | 0% | $29,097,572 |
| AMERICAN CENTURY COMPANIES INC | 2.8% | 535,002 | +28% | 0.01% | $20,693,877 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8% | 530,532 | 0% | 0% | $20,520,978 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.5% | 477,878 | -16% | 0% | $18,484,321 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 467,609 | +2.2% | 0% | $18,089,169 |
| Quaker Capital Investments, LLC | 2.4% | 457,852 | -3.6% | 4.3% | $17,709,715 |
| TWO SIGMA INVESTMENTS, LP | 2.2% | 417,536 | +114% | 0.01% | $16,150,292 |
| AMERIPRISE FINANCIAL INC | 1.4% | 261,788 | -4.2% | 0% | $10,125,942 |
| NORTHERN TRUST CORP | 1.3% | 245,163 | +2.6% | 0% | $9,482,905 |
| Dana Investment Advisors, Inc. | 1.2% | 235,235 | -0.23% | 0.27% | $9,098,890 |
| Bank of New York Mellon Corp | 1.2% | 224,256 | -3.1% | 0% | $8,674,229 |
| MORGAN STANLEY | 1.1% | 221,535 | +5.5% | 0% | $8,569,002 |
| CSM Advisors, LLC | 1% | 194,555 | +9.6% | 0.18% | $7,524,000 |
| Invesco Ltd. | 0.96% | 185,586 | -13% | 0% | $7,178,467 |
| Russell Investments Group, Ltd. | 0.95% | 183,221 | -13% | 0.01% | $7,087,056 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.84% | 162,072 | 0% | $6,268,945 | |
| HUNTINGTON NATIONAL BANK | 0.82% | 157,099 | -4.5% | 0.03% | $6,076,589 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.77% | 147,526 | +5.3% | 0.11% | $5,706,306 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 19,091,512 | $738,046,111 | -$2,674,959 | $38.68 | 203 |
| 2025 Q4 | 19,310,147 | $522,936,632 | +$22,058,062 | $27.08 | 191 |
| 2025 Q3 | 18,507,137 | $518,209,864 | -$5,892,157 | $28.00 | 199 |
| 2025 Q2 | 18,627,711 | $598,877,738 | -$760,404 | $32.15 | 200 |
| 2025 Q1 | 18,891,781 | $528,914,568 | +$2,635,291 | $28.00 | 183 |
| 2024 Q4 | 18,828,456 | $609,984,843 | +$7,056,774 | $32.40 | 189 |
| 2024 Q3 | 18,525,468 | $676,789,157 | -$13,199,331 | $36.53 | 189 |
| 2024 Q2 | 18,876,733 | $698,242,581 | -$44,042,919 | $36.99 | 182 |
| 2024 Q1 | 19,774,424 | $1,090,935,910 | +$34,070,595 | $55.17 | 181 |
| 2023 Q4 | 19,473,787 | $997,438,772 | +$26,285,871 | $51.22 | 178 |
| 2023 Q3 | 19,014,747 | $752,026,776 | +$22,314,123 | $39.55 | 169 |
| 2023 Q2 | 18,517,990 | $631,482,261 | +$304,904 | $34.10 | 150 |
| 2023 Q1 | 18,452,090 | $645,245,099 | +$9,436,678 | $34.97 | 151 |
| 2022 Q4 | 18,318,500 | $516,695,507 | -$5,311,612 | $28.20 | 136 |
| 2022 Q3 | 18,603,210 | $386,640,637 | +$3,037,335 | $20.78 | 130 |
| 2022 Q2 | 18,374,384 | $415,940,204 | -$12,375,595 | $22.64 | 136 |
| 2022 Q1 | 18,963,927 | $520,905,611 | +$3,026,597 | $27.52 | 135 |
| 2021 Q4 | 18,836,535 | $589,499,922 | -$25,888,411 | $31.30 | 143 |
| 2021 Q3 | 19,615,887 | $613,955,903 | +$8,320,627 | $31.26 | 134 |
| 2021 Q2 | 19,331,473 | $624,970,191 | +$12,286,359 | $32.35 | 136 |
| 2021 Q1 | 18,931,223 | $657,625,654 | +$28,699,698 | $34.76 | 144 |
| 2020 Q4 | 18,361,118 | $572,975,412 | +$9,123,660 | $31.16 | 146 |
| 2020 Q3 | 18,269,502 | $382,462,352 | -$2,581,042 | $20.91 | 135 |
| 2020 Q2 | 18,489,289 | $348,034,013 | +$10,676,649 | $18.84 | 126 |
| 2020 Q1 | 18,821,967 | $232,779,683 | -$16,511,882 | $12.37 | 135 |