Ampco-PittsburghAP
13F holders, Q3 2025 (September 30)At the end of Q3 2025, 36 institutions reported holding Ampco-Pittsburgh Corp. (AP) in their 13F filings, down 3 from Q2 2025. 4 opened new positions and 7 sold out. The largest holders were GAMCO Investors ($5.5M), Gabelli Funds LLC ($3.2M) and Ameriprise Financial Inc. ($2.6M). 3 famous investors held it, including Mario Gabelli (0.1% of GAMCO Investors's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Ampco-Pittsburgh Corp.
- CUSIP
- 032037103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $80K |
| Exits | 7 | $357K |
All 13F filers, Q2 2025 → Q3 2025: 127,017 shares bought and 387,782 shares sold, net −260,765 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 36 holders
| GAMCO Investors | 0.05% | Reduce -2.6% | 2,384,210 | $5.5M |
| Gabelli Funds LLC | 0.02% | Add +0.9% | 1,380,800 | $3.2M |
| Ameriprise Financial Inc. | 0.00% | Reduce -0.7% | 1,151,665 | $2.6M |
| Ancora Advisors LLC | 0.04% | Reduce -11.0% | 951,318 | $2.2M |
| Vanguard Group Inc. | 0.00% | Add +6.0% | 667,704 | $1.5M |
| Renaissance Technologies | 0.00% | Add +7.1% | 480,619 | $1.1M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -0.5% | 336,120 | $770K |
| BlackRock, Inc. | 0.00% | Add +2.4% | 169,238 | $388K |
| Geode Capital Management, LLC | 0.00% | Reduce -12.3% | 142,099 | $326K |
| Bridgeway Capital Management, LLC | 0.01% | No change | 127,535 | $292K |
| Teton Advisors, LLC | 0.15% | — | 108,500 | $248K |
| RBF Capital, LLC | 0.01% | No change | 90,950 | $208K |
| State Street Corp. | 0.00% | No change | 74,216 | $170K |
| Acadian Asset Management LLC | 0.00% | No change | 56,991 | $129K |
| Goldman Sachs Group Inc. | 0.00% | Add +17.1% | 31,848 | $73K |
| Citadel Advisors | 0.00% | New | 31,396 | $72K |
| Central Pacific Bank - Trust Division | 0.01% | No change | 22,401 | $51K |
| Northern Trust Corp. | 0.00% | Reduce -2.8% | 20,998 | $48K |
| Gsa Capital Partners LLP | 0.00% | Reduce -47.3% | 18,479 | $42K |
| UBS Group AG | 0.00% | Reduce -60.8% | 16,091 | $37K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Reduce -5.2% | 10,573 | $24K |
| Morgan Stanley | 0.00% | No change | 6,243 | $14K |
| Simplex Trading, LLC | 0.00% | New | 3,848 | $8K |
| PNC Financial Services Group, Inc. | 0.00% | No change | 2,500 | $6K |
| Bank of America Corp. | 0.00% | Reduce -5.9% | 2,212 | $5K |
| Citigroup Inc. | 0.00% | Add +0.1% | 1,515 | $3K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -3.1% | 1,485 | $3K |
| NewEdge Advisors, LLC | 0.00% | Add +26.1% | 1,081 | $2K |
| Osaic Holdings, Inc. | 0.00% | No change | 385 | $881 |
| Group One Trading LLC | 0.00% | Reduce -98.6% | 200 | $458 |
| Barclays PLC | 0.00% | New | 99 | $227 |
| JPMorgan Chase & Co. | 0.00% | Reduce -6.7% | 28 | $64 |
| Salem Investment Counselors Inc. | 0.00% | No change | 25 | $58 |
| Quadrant Capital Group LLC | 0.00% | New | 18 | $42 |
| SBI Securities Co., Ltd. | 0.00% | No change | 4 | $9 |
| Wells Fargo & Company | 0.00% | No change | 1 | $1 |
"% of holder's portfolio" is AP's weight in each manager's 13F, not the share of Ampco-Pittsburgh Corp. the manager owns.