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Disclosery

AP AMPCO-PITTSBURG CORP

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COMMON STOCK (common), issuer CIK 6176

81 managers (85 13F filers) reported a position in AP shares at 2026-06-30, 11,498,094 shares in all. 30 filers opened a position and 9 filers sold out during the quarter.

Managers
81
13F filers
85
New
30
Added
26
Reduced
19
Sold out
9
Shares held by filers
11,498,094

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
GAMCO Investors (Gabelli)group of 2 filers holding3,851,629$33.3M-40,128Timeline
BlackRock, Inc.in group BlackRock, Inc.982,611$8.5M<0.01%+779,47813F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC905,679$7.83M<0.01%-267,34513F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding813,365$7.04M+133,019Timeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN660,945$5.72M<0.01%+4,94413F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC414,419$3.58M<0.01%-8,80013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC342,836$2.97M<0.01%+207,77313F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC328,848$2.84M<0.01%+109,98813F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP295,444$2.56M<0.01%-59,98313F-HRTimelineGroup
Meros Investment Management, LP239,910$2.08M0.66%+25,06013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…195,321$1.69M<0.01%+168,72213F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC191,015$1.65M<0.01%+107,42313F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC174,312$1.51M0.01%+51,89413F-HRTimeline
STATE STREET CORPin group STATE STREET CORP159,316$1.38M<0.01%+99,90013F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC150,371$1.3M<0.01%-17,93013F-HRTimelineGroup
Huntleigh Advisors, Inc.141,172$1.22M0.17%-89,30613F-HRTimeline
RITHOLTZ WEALTH MANAGEMENT132,943$1.15M0.02%+14,16413F-HR/ATimeline
Teton Advisors, LLC130,000$1.12M0.65%013F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC125,386$1.08M0.02%-29,02413F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP121,477$1.05M<0.01%+93,05813F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC100,724$871K<0.01%+59,99413F-HRTimelineGroup
Informed Momentum Co LLC90,053$779K0.07%-25,74013F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP80,361$695K<0.01%-80,93013F-HRTimelineGroup
Palumbo Wealth Management LLC79,185$685K0.14%+63,95213F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO65,911$570K<0.01%-118,42513F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC52,441$454K<0.01%new13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC51,409$445K<0.01%+36,97013F-HRTimelineGroup
Empowered Funds, LLC50,286$435K<0.01%+3,41113F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co39,373$341K<0.01%new13F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp33,984$294K<0.01%new13F-HRTimelineGroup
Qube Research & Technologies Ltd32,230$279K<0.01%new13F-HRTimeline
UBS Group AGin group UBS Group AG32,154$278K<0.01%-11,56713F-HRTimelineGroup
Dynamic Technology Lab Private Ltd30,373$263K0.06%new13F-HRTimeline
OCCUDO QUANTITATIVE STRATEGIES LP24,936$216K0.01%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd23,995$208K<0.01%-24,58713F-HRTimelineGroup
Central Pacific Bank - Trust Division22,401$194K0.02%013F-HRTimeline
GSA CAPITAL PARTNERS LLP21,641$187K0.01%+2,98413F-HRTimeline
Nuveen, LLCin group TIAA21,419$185K<0.01%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC19,793$171K<0.01%-140,61513F-HRTimelineGroup
Janney Montgomery Scott LLC17,516$152K<0.01%013F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…16,388$142K<0.01%-2,33913F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\16,137$140K<0.01%new13F-HRTimelineGroup
RAFFLES ASSOCIATES LP15,000$130K0.11%013F-HR/ATimeline
Graham Capital Management, L.P.14,835$128K<0.01%new13F-HRTimeline
STRS OHIO14,000$121K<0.01%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/13,954$121K<0.01%-6,32613F-HRTimelineGroup
RHUMBLINE ADVISERS13,659$118K<0.01%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY13,560$117K<0.01%+3,97913F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/13,488$117K<0.01%new13F-HRTimeline
IMC-Chicago, LLC13,316$115K<0.01%new13F-HRTimeline
Engineers Gate Manager LP12,307$106K<0.01%new13F-HRTimeline
ALGERT GLOBAL LLC11,642$101K<0.01%-17,29013F-HRTimeline
Hodges Capital Management Inc.11,185$96.8K0.01%+27513F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…9,895$85.6K<0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC9,134$79K<0.01%+7,62013F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…7,463$64.6K<0.01%new13F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO7,250$63.7K<0.01%new13F-HRTimelineGroup
GROUP ONE TRADING LLC7,005$60.6K<0.01%+34313F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…6,600$57.1K<0.01%013F-HRTimelineGroup
Police & Firemen's Retirement System of…4,780$41.3K<0.01%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC3,341$28.9K<0.01%+3,08113F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND2,900$25.1K<0.01%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS2,813$24.3K<0.01%new13F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc1,581$13.7K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,471$12.7K<0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…1,296$11.2K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,137$9.84K<0.01%+99613F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP967$9.04K<0.01%+113F-HRTimelineGroup
FMR LLCin group FMR LLC700$6.05K<0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA707$6K<0.01%-26313F-HRTimelineGroup
Farther Finance Advisors, LLC600$5.19K<0.01%013F-HRTimeline
Markowski Investments500$4.33K<0.01%13F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.367$3.17K<0.01%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.360$3.11K<0.01%013F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…223$1.93K<0.01%new13F-HR/ATimeline
SBI Securities Co., Ltd.125$1.08K<0.01%+12013F-HRTimeline
Rialto Wealth Management, LLC79$684<0.01%new13F-HRTimeline
Fortitude Family Office, LLC61$528<0.01%013F-HRTimeline
Sterling Capital Management LLC57$493<0.01%new13F-HRTimeline
SALEM INVESTMENT COUNSELORS INC25$217<0.01%013F-HRTimeline
Caitong International Asset Management …2$17<0.01%new13F-HRTimeline