Ampco-PittsburghAP
13F holders, Q1 2026 (March 31)63holders +20
23new positions
5sold out
4famous investors
$6.72avg. 13F price*
At the end of Q1 2026, 63 institutions reported holding Ampco-Pittsburgh Corp. (AP) in their 13F filings, up 20 from Q4 2025. 23 opened new positions and 5 sold out. The largest holders were GAMCO Investors ($16.7M), Gabelli Funds LLC ($9.4M) and Ameriprise Financial Inc. ($7.9M). 4 famous investors held it, including Mario Gabelli (0.2% of GAMCO Investors's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Ampco-Pittsburgh Corp.
- CUSIP
- 032037103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 23 | $8.9M |
| Exits | 5 | $2.0M |
All 13F filers, Q4 2025 → Q1 2026: 2,464,562 shares bought and 545,216 shares sold, net +1,919,346 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 63 holders
| GAMCO Investors | 0.17% | Add +0.9% | 2,491,957 | $16.7M |
| Gabelli Funds LLC | 0.06% | Reduce -0.3% | 1,399,800 | $9.4M |
| Ameriprise Financial Inc. | 0.00% | Add +0.9% | 1,173,024 | $7.9M |
| Wells Fargo & Company | 0.00% | Add +65600000.0% | 656,001 | $4.4M |
| Vanguard Capital Management LLC | 0.00% | — | 600,114 | $4.0M |
| Renaissance Technologies | 0.00% | Reduce -8.3% | 423,219 | $2.8M |
| Dimensional Fund Advisors LP | 0.00% | Add +6.1% | 355,427 | $2.4M |
| Huntleigh Advisors, Inc. | 0.26% | New | 230,478 | $1.5M |
| American Century Companies Inc. | 0.00% | New | 218,860 | $1.5M |
| Meros Investment Management, LP | 0.63% | New | 214,850 | $1.4M |
| BlackRock, Inc. | 0.00% | Add +21.3% | 203,133 | $1.4M |
| Sei Investments Co. | 0.00% | Add +104.1% | 184,336 | $1.2M |
| Jane Street Group, LLC | 0.00% | Add +563.4% | 168,301 | $1.1M |
| Marshall Wace, LLP | 0.00% | Reduce -22.6% | 161,291 | $1.1M |
| Millennium Management | 0.00% | New | 160,408 | $1.1M |
| Bridgeway Capital Management, LLC | 0.02% | Add +43.6% | 154,410 | $1.0M |
| Geode Capital Management, LLC | 0.00% | Reduce -5.0% | 135,063 | $909K |
| Teton Advisors, LLC | 0.61% | No change | 130,000 | $874K |
| O'shaughnessy Asset Management, LLC | 0.00% | New | 122,418 | $823K |
| Ritholtz Wealth Management | 0.01% | New | 118,779 | $798K |
| Informed Momentum Co LLC | 0.09% | Reduce -22.0% | 115,793 | $778K |
| Acadian Asset Management LLC | 0.00% | Add +27.6% | 83,592 | $559K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 72,813 | $489K |
| RBF Capital, LLC | 0.02% | No change | 60,000 | $403K |
| State Street Corp. | 0.00% | Reduce -25.8% | 59,416 | $399K |
| XTX Topco Ltd | 0.01% | New | 48,582 | $326K |
| Empowered Funds, LLC | 0.00% | New | 46,875 | $315K |
| UBS Group AG | 0.00% | Add +172.9% | 43,721 | $294K |
| Goldman Sachs Group Inc. | 0.00% | Add +44.2% | 40,730 | $274K |
| Algert Global LLC | 0.00% | Add +130.2% | 28,932 | $194K |
| Northern Trust Corp. | 0.00% | No change | 28,419 | $191K |
| Hudson Bay Capital Management LP | 0.00% | New | 27,112 | $182K |
| Susquehanna International Group, LLP | 0.00% | Reduce -36.0% | 26,599 | $179K |
| Central Pacific Bank - Trust Division | 0.02% | No change | 22,401 | $151K |
| Bank of America Corp. | 0.00% | Add +815.6% | 20,280 | $136K |
| Simplex Trading, LLC | 0.00% | Add +166.2% | 20,162 | $135K |
| OMERS ADMINISTRATION Corp | 0.00% | New | 19,300 | $130K |
| Brevan Howard Capital Management LP | 0.00% | New | 18,727 | $126K |
| Gsa Capital Partners LLP | 0.01% | Add +1.0% | 18,657 | $125K |
| HRT Financial LP | 0.00% | Add +27.7% | 18,621 | $125K |
| Janney Montgomery Scott LLC | 0.00% | New | 17,516 | $118K |
| Palumbo Wealth Management LLC | 0.03% | New | 15,233 | $102K |
| Raffles Associates LP | 0.09% | New | 15,000 | $101K |
| Citadel Advisors | 0.00% | Add +4.1% | 14,439 | $97K |
| D'Orazio & Associates, Inc. | 0.01% | New | 11,103 | $75K |
| Dudley Capital Management, LLC | 0.03% | New | 11,000 | $74K |
| Hodges Capital Management Inc. | 0.01% | New | 10,910 | $73K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 10,300 | $69K |
| Morgan Stanley | 0.00% | Add +39.4% | 9,581 | $64K |
| Vanguard Global Advisers, LLC | 0.00% | — | 7,419 | $50K |
| Group One Trading LLC | 0.00% | Reduce -35.2% | 6,662 | $45K |
| PNC Financial Services Group, Inc. | 0.00% | Add +164.0% | 6,600 | $44K |
| Citigroup Inc. | 0.00% | No change | 1,514 | $10K |
| Royal Bank of Canada | 0.00% | New | 970 | $7K |
| Jones Financial Companies LLLP | 0.00% | Add +1188.0% | 966 | $7K |
| Farther Finance Advisors, LLC | 0.00% | Add +100.0% | 600 | $4K |
| Osaic Holdings, Inc. | 0.00% | Reduce -6.5% | 360 | $2K |
| Barclays PLC | 0.00% | New | 260 | $2K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 141 | $948 |
| Fortitude Family Office, LLC | 0.00% | New | 61 | $410 |
| Salem Investment Counselors Inc. | 0.00% | New | 25 | $168 |
| Quadrant Capital Group LLC | 0.00% | No change | 18 | $121 |
| SBI Securities Co., Ltd. | 0.00% | Add +25.0% | 5 | $34 |
"% of holder's portfolio" is AP's weight in each manager's 13F, not the share of Ampco-Pittsburgh Corp. the manager owns.