Koppers Holdings Inc. (KOP) Ownership
KOP ownership summary
as of October 18, 2026- Institutions
- 105.6% of shares outstanding
- Insiders
- 7.15% of shares outstanding
- Shares outstanding
- 18.9M
- Float
- 16.5M shares available to trade
- Short interest
- 5.60% 801K shares short
- Days to cover
- 4.69 short interest down 15.7% vs prior month
- Institutions 105.62%
- Insiders 7.15%
KOP top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 16.11% | 3.0M | $132.0M | +2,491 (+0.1%) | June 30, 2026 |
| 2 | Simcoe Capital Management, LLC | 7.49% | 1.4M | $61.3M | +471,730 (+49.9%) | June 30, 2026 |
| 3 | Dimensional Fund Advisors, Inc. | 6.54% | 1.2M | $53.6M | +45,891 (+3.9%) | June 30, 2026 |
| 4 | Pzena Investment Management, LLC | 5.61% | 1.1M | $46.0M | −148,091 (−12.2%) | June 30, 2026 |
| 5 | Fuller & Thaler Asset Management Inc | 4.99% | 943K | $40.9M | −35,311 (−3.6%) | June 30, 2026 |
| 6 | LSV Asset Management | 4.98% | 942K | $40.8M | +15,850 (+1.7%) | June 30, 2026 |
| 7 | American Century Companies Inc | 4.48% | 848K | $36.7M | +313,066 (+58.5%) | June 30, 2026 |
| 8 | Vanguard Capital Management, LLC | 4.30% | 813K | $35.2M | −27,817 (−3.3%) | June 30, 2026 |
| 9 | State Street Corp | 4.25% | 805K | $34.9M | +52,289 (+7.0%) | June 30, 2026 |
| 10 | Vanguard Portfolio Management, LLC | 2.85% | 539K | $23.4M | +8,515 (+1.6%) | June 30, 2026 |
| 11 | Geode Capital Management, LLC | 2.56% | 483K | $20.9M | +15,808 (+3.4%) | June 30, 2026 |
| 12 | Quaker Capital Investments, LLC | 2.16% | 409K | $17.7M | −49,297 (−10.8%) | June 30, 2026 |
| 13 | Charles Schwab Investment Management Inc | 2.03% | 384K | $16.6M | −93,756 (−19.6%) | June 30, 2026 |
| 14 | Amvescap Plc. | 1.76% | 333K | $14.4M | +147,019 (+79.2%) | June 30, 2026 |
| 15 | Ameriprise Financial Inc | 1.51% | 286K | $12.4M | +23,868 (+9.1%) | June 30, 2026 |
| 16 | Two Sigma Investments LLC | 1.41% | 266K | $11.5M | −151,484 (−36.3%) | June 30, 2026 |
| 17 | Northern Trust Corp | 1.34% | 253K | $11.0M | +8,318 (+3.4%) | June 30, 2026 |
| 18 | Morgan Stanley - Brokerage Accounts | 1.28% | 243K | $10.5M | +21,388 (+9.7%) | June 30, 2026 |
| 19 | Dana Investment Advisors Inc | 1.22% | 231K | $10.0M | −3,836 (−1.6%) | June 30, 2026 |
| 20 | Bank of New York Mellon Corp | 1.18% | 223K | $9.6M | −1,686 (−0.8%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 1.1M shares and 8 cut 511K.
KOP top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Small-Cap ETF | 5.95% | 1.1M | $48.8M | +291 (+0.0%) | September 30, 2026 |
| 2 | Avantis US Small Cap Value ETF | 4.35% | 823K | $35.7M | — | September 30, 2026 |
| 3 | Undiscovered Managers Behavioral Val L | 3.91% | 740K | $32.0M | −16,400 (−2.2%) | August 31, 2026 |
| 4 | Vanguard MStar Total Stk Mkt Idx Invest | 3.07% | 581K | $25.2M | — | August 31, 2026 |
| 5 | iShares Russell 2000 ETF | 2.49% | 472K | $20.4M | −5,440 (−1.1%) | September 30, 2026 |
| 6 | DFA US Small Cap Value I | 1.42% | 269K | $11.6M | — | August 31, 2026 |
| 7 | Fidelity Small Cap Index | 1.05% | 199K | $8.6M | +1,592 (+0.8%) | July 31, 2026 |
| 8 | Columbia Small Cap Value Discv A | 0.91% | 173K | $7.5M | +1,100 (+0.6%) | August 31, 2026 |
| 9 | iShares Russell 2000 Value ETF | 0.91% | 171K | $7.4M | +260 (+0.2%) | September 30, 2026 |
| 10 | State Street SPDR Port S&P 600 Sm CpETF | 0.90% | 169K | $7.3M | — | September 30, 2026 |
| 11 | iShares S&P Small-Cap 600 Value ETF | 0.85% | 160K | $6.9M | — | September 30, 2026 |
| 12 | DFA US Targeted Value I | 0.84% | 159K | $6.9M | +2,156 (+1.4%) | August 31, 2026 |
| 13 | Invesco S&P SmallCap Value with Momt ETF | 0.79% | 150K | $6.5M | −168 (−0.1%) | September 30, 2026 |
| 14 | Vanguard Tax-Managed Small Cap Adm | 0.76% | 143K | $6.2M | — | September 30, 2026 |
| 15 | Dimensional US Targeted Value ETF | 0.74% | 140K | $6.1M | +37 (+0.0%) | September 30, 2026 |
| 16 | Dimensional US Small Cap Value ETF | 0.65% | 124K | $5.4M | — | September 24, 2026 |
| 17 | EA Bridgeway Omni Small-Cap Value ETF | 0.57% | 108K | $4.7M | — | September 30, 2026 |
| 18 | Vanguard Russell 2000 ETF | 0.56% | 106K | $4.6M | +1,302 (+1.2%) | September 30, 2026 |
| 19 | Schwab US Small-Cap ETF™ | 0.53% | 101K | $4.4M | +63 (+0.1%) | September 30, 2026 |
| 20 | State Street® SPDR® S&P 600™ Sm CpValETF | 0.52% | 99K | $4.3M | — | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
KOP insider transactions
latest 1| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-17 | M Leroy Ball | Sell | $37.91 | 2,489 | $94,358 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
KOP shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns KOP
Institutional investors own 105.6% of Koppers's shares and insiders 7.15%. The largest holder is BlackRock Inc with 16.11% of the shares (3.0M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 8 reduced their stake in the latest filings. Short interest is 5.60% of the float, or 4.69 days of average trading volume.
Related: KOP analyst forecast, KOP key metrics, KOP dividend history. See the KOP stock overview for the latest quote and news.
KOP ownership FAQ
Who owns the most Koppers stock?
The largest shareholders of Koppers are BlackRock Inc (16.11%), Simcoe Capital Management, LLC (7.49%), Dimensional Fund Advisors, Inc. (6.54%), Pzena Investment Management, LLC (5.61%), Fuller & Thaler Asset Management Inc (4.99%).
What percentage of Koppers is owned by institutions?
Institutions hold 105.6% of Koppers's shares outstanding; insiders hold 7.15%.
Which funds own Koppers?
The largest fund holders of Koppers are iShares Core S&P Small-Cap ETF (5.95%), Avantis US Small Cap Value ETF (4.35%), Undiscovered Managers Behavioral Val L (3.91%), Vanguard MStar Total Stk Mkt Idx Invest (3.07%), iShares Russell 2000 ETF (2.49%).
What is Koppers's short interest?
801K shares of Koppers were sold short, 5.60% of the float; at the average daily volume it would take 4.69 days to cover.
Are insiders buying or selling Koppers?
Of the latest 1 reported insider transactions in Koppers (since March 17, 2026), 0 were purchases and 1 were sales.
How many shares of Koppers are outstanding?
Koppers has 18.9M shares outstanding, of which 16.5M are in the public float.