AMPCO-PITTSBURG CORP AP
COM · Common Stock · CUSIP 032037103
- SectorIndustrials
- IndustryPumps & Pumping Equipment
- HeadquartersCarnegie, PA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($435.0k this quarter). Holder counts are more reliable. Shares outstanding: 20.7m as of 2026-08-06, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $8.65. Options: 7 managers hold calls ($2.0m notional), 3 hold puts ($158.3k).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 36 |
| Q4 2022 | 37 |
| Q1 2023 | 39 |
| Q2 2023 | 36 |
| Q3 2023 | 38 |
| Q4 2023 | 36 |
| Q1 2024 | 35 |
| Q2 2024 | 43 |
| Q3 2024 | 33 |
| Q4 2024 | 38 |
| Q1 2025 | 39 |
| Q2 2025 | 40 |
| Q3 2025 | 36 |
| Q4 2025 | 43 |
| Q1 2026 | 63 |
| Q2 2026 | 85 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 7 | 23 |
| Q4 2024 | 11 | 9 |
| Q1 2025 | 13 | 11 |
| Q2 2025 | 22 | 9 |
| Q3 2025 | 12 | 19 |
| Q4 2025 | 24 | 15 |
| Q1 2026 | 45 | 15 |
| Q2 2026 | 57 | 28 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $11.7k | $3.5k | 0.30 |
| Q4 2025 | $84.7k | $2.7k | 0.03 |
| Q1 2026 | $752.0k | $161.3k | 0.21 |
| Q2 2026 | $2.0m | $158.3k | 0.08 |
Biggest buyers
| BlackRock, Inc. | Added | +779.5k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +207.8k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +168.7k |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New | +112.7k |
| AMERICAN CENTURY COMPANIES INC | Added | +110.0k |
| ACADIAN ASSET MANAGEMENT LLC | Added | +107.4k |
| STATE STREET CORP | Added | +99.9k |
| NORTHERN TRUST CORP | Added | +93.1k |
| Palumbo Wealth Management LLC | Added | +64.0k |
| GOLDMAN SACHS GROUP INC | Added | +60.0k |
Biggest sellers
| AMERIPRISE FINANCIAL INC | Reduced | -267.3k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -140.6k |
| SEI INVESTMENTS CO | Reduced | -118.4k |
| Huntleigh Advisors, Inc. | Reduced | -89.3k |
| MARSHALL WACE, LLP | Reduced | -80.9k |
| RBF Capital, LLC | Sold out | -60.0k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -60.0k |
| GAMCO INVESTORS, INC. ET AL | Reduced | -32.1k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Reduced | -29.0k |
| Hudson Bay Capital Management LP | Sold out | -27.1k |
Biggest calls
| Caption Management, LLC | New | $778.5k90.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $371.9k43.0k shares |
| JANE STREET GROUP, LLC | New | $358.1k41.4k shares |
| GROUP ONE TRADING LLC | Unchanged | $268.1k31.0k shares |
| CITADEL ADVISORS LLC | Added | $150.5k17.4k shares |
| IMC-Chicago, LLC | New | $104.7k12.1k shares |
| SIMPLEX TRADING, LLC | New | $10.4k1.2k shares |
Biggest puts
| JANE STREET GROUP, LLC | New | $148.8k17.2k shares |
| GROUP ONE TRADING LLC | New | $8.7k1.0k shares |
| SIMPLEX TRADING, LLC | Unchanged | $865100 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
Louis Berkman Investment CO
13D · may seek influence
filed 2025-11-26
Stated purposeThis Amendment is being filed to report the purchase by LBIC of 93,000 common shares of the Issuer ("Common Shares") for a weighted average of $2.67 per whole Common Share on November 17, 2025 for investment purposes. Except as set forth herein, the Reporting Person filing this Amendment has no plans or proposals that relate to or would result in any of the actions or events set forth in paragraphs (a) through (j) of Item 4 of Schedule 13D. Full filing |
15.4% |
| GAMCO INVESTORS, INC. ET AL 13D · may seek influence filed 2025-08-04 | 12.0% |
Galloway Capital Partners, LLC
13D · may seek influence
new · filed 2025-12-19
Stated purposeEach Reporting Person acquired the securities described in this Schedule 13D for investment purposes and intend to review its investment in the Issuer on a continuing basis. Each Reporting Person may from time to time acquire additional securities of the Issuer or retain or sell all or a portion of the shares then held by such Reporting Person, in the open market, block trades, underwritten public offerings or privately negotiated transactions. Any actions any Reporting Person might undertake with respect to its investment in the Issuer may be made at any time and from time to time and will be dependent upon such Reporting Person's review of numerous factors, including, but not limited to: ongoing evaluation of the Issuer's business, financial condition, operations, prospects and strategi… Full filing |
5.2% |
Fell to 5% or below in the last year: AMERIPRISE FINANCIAL INC (4.5%, 2026-08-14), RUTABAGA CAPITAL MANAGEMENT LLC/MA (0.0%, 2026-01-22), Ancora Alternatives LLC (4.2%, 2025-11-14)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 1 | $8.4k | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 3 | $189.4k | 0 | — | — |
| Q1 2026 | 1 | $50.0k | 0 | — | — |
| Q2 2026 | 1 | $29.8k | 1 | $99.5k | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-06-25 | Lyon Samuel President of Union Electric | Sold | $93.3k9.5k shares |
| 2026-06-18 | Lyon Samuel President of Union Electric | Sold | $6.2k547 shares |
| 2026-05-19 | McBrayer Brett Chief Executive Officer, director | Bought | $29.8k3.3k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| GAMCO INVESTORS, INC. ET AL 0.19% of their portfolio | 2.5m $21.3m | Reduced -32.1k |
| GABELLI FUNDS LLC 0.08% of their portfolio | 1.4m $12.0m | Reduced -8.0k |
| BlackRock, Inc. 0.00% of their portfolio | 982.6k $8.5m | Added +779.5k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 905.7k $7.8m | Reduced -267.3k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 660.9k $5.7m | Added +4.9k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 604.1k $5.2m | Added +4.0k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 414.4k $3.6m | Reduced -8.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 342.8k $3.0m | Added +207.8k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 328.8k $2.8m | Added +110.0k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 295.4k $2.6m | Reduced -60.0k |
| Meros Investment Management, LP 0.66% of their portfolio | 239.9k $2.1m | Added +25.1k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 195.3k $1.7m | Added +168.7k |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 191.0k $1.6m | Added +107.4k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.01% of their portfolio | 174.3k $1.5m | Added +51.9k |
| STATE STREET CORP 0.00% of their portfolio | 159.3k $1.4m | Added +99.9k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 150.4k $1.3m | Reduced -17.9k |
| Huntleigh Advisors, Inc. 0.17% of their portfolio | 141.2k $1.2m | Reduced -89.3k |
| RITHOLTZ WEALTH MANAGEMENT 0.02% of their portfolio | 132.9k $1.1m | Added +14.2k |
| Teton Advisors, LLC 0.65% of their portfolio | 130.0k $1.1m | Unchanged |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 125.4k $1.1m | Reduced -29.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 121.5k $1.1m | Added +93.1k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 112.7k $975.0k | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 100.7k $871.3k | Added +60.0k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 92.9k $803.4k | Added +20.1k |
| Informed Momentum Co LLC 0.07% of their portfolio | 90.1k $779.0k | Reduced -25.7k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 80.4k $695.1k | Reduced -80.9k |
| Palumbo Wealth Management LLC 0.14% of their portfolio | 79.2k $685.0k | Added +64.0k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 65.9k $570.1k | Reduced -118.4k |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 52.4k $453.6k | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 51.4k $444.7k | Added +37.0k |
| Empowered Funds, LLC 0.00% of their portfolio | 50.3k $435.0k | Added +3.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 39.4k $340.6k | New |
| Bank of New York Mellon Corp 0.00% of their portfolio | 34.0k $294.0k | New |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 32.2k $278.8k | New |
| UBS Group AG 0.00% of their portfolio | 32.2k $278.1k | Reduced -11.6k |
| Dynamic Technology Lab Private Ltd 0.06% of their portfolio | 30.4k $263.0k | New |
| RAFFLES ASSOCIATES LP 0.11% of their portfolio | 30.0k $259.5k | Added +15.0k |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.01% of their portfolio | 24.9k $215.7k | New |
| XTX Topco Ltd 0.00% of their portfolio | 24.0k $207.6k | Reduced -24.6k |
| Central Pacific Bank - Trust Division 0.02% of their portfolio | 22.4k $193.8k | Unchanged |
| GSA CAPITAL PARTNERS LLP 0.01% of their portfolio | 21.6k $187.0k | Added +3.0k |
| Nuveen, LLC 0.00% of their portfolio | 21.4k $185.3k | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 19.8k $171.2k | Reduced -140.6k |
| Janney Montgomery Scott LLC 0.00% of their portfolio | 17.5k $152.0k | Unchanged |
| Brevan Howard Capital Management LP 0.00% of their portfolio | 16.4k $141.8k | Reduced -2.3k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 16.1k $139.6k | New |
| Graham Capital Management, L.P. 0.00% of their portfolio | 14.8k $128.3k | New |
| STRS OHIO 0.00% of their portfolio | 14.0k $121.1k | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 14.0k $120.7k | Reduced -6.3k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 13.7k $118.1k | New |
| MORGAN STANLEY 0.00% of their portfolio | 13.6k $117.3k | Added +4.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 13.5k $117.0k | New |
| IMC-Chicago, LLC 0.00% of their portfolio | 13.3k $115.2k | New |
| Engineers Gate Manager LP 0.00% of their portfolio | 12.3k $106.5k | New |
| ALGERT GLOBAL LLC 0.00% of their portfolio | 11.6k $100.7k | Reduced -17.3k |
| Hodges Capital Management Inc. 0.01% of their portfolio | 11.2k $96.8k | Added +275 |
| MetLife Investment Management, LLC 0.00% of their portfolio | 9.9k $85.6k | New |
| CITIGROUP INC 0.00% of their portfolio | 9.1k $79.0k | Added +7.6k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 7.5k $64.6k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 7.2k $63.7k | New |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 7.0k $60.6k | Added +343 |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 6.6k $57.1k | Unchanged |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 4.8k $41.3k | New |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 3.7k $31.8k | Reduced -3.7k |
| BARCLAYS PLC 0.00% of their portfolio | 3.3k $28.9k | Added +3.1k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 2.9k $25.1k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 2.8k $24.3k | New |
| Legal & General Group Plc 0.00% of their portfolio | 1.6k $13.7k | New |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.5k $12.7k | New |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 1.3k $11.2k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 1.1k $9.8k | Added +996 |
| JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio | 967 $9.0k | Added +1 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 707 $6.0k | Reduced -263 |
| FMR LLC 0.00% of their portfolio | 700 $6.1k | New |
| Farther Finance Advisors, LLC 0.00% of their portfolio | 600 $5.2k | Unchanged |
| Markowski Investments 0.00% of their portfolio | 500 $4.3k | First filing |
| FEDERATED HERMES, INC. 0.00% of their portfolio | 367 $3.2k | New |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 360 $3.1k | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 223 $1.9k | New |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 125 $1.1k | Added +120 |
| Rialto Wealth Management, LLC 0.00% of their portfolio | 79 $684 | New |
| Fortitude Family Office, LLC 0.00% of their portfolio | 61 $528 | Unchanged |
| Sterling Capital Management LLC 0.00% of their portfolio | 57 $493 | New |
| SALEM INVESTMENT COUNSELORS INC 0.00% of their portfolio | 25 $217 | Unchanged |
| Caitong International Asset Management Co., Ltd 0.00% of their portfolio | 2 $17 | New |