AP: Ampco-Pittsburgh Corporation insider trading, 5% holders and institutional ownership

From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.

Insider trading

0 open-market buys totaling - and 0 sales totaling - in the last 180 days.

Activist and 5% holders

FiledWhatHolderStakeChangeFiling
2026-08-14Fell below 5%Ameriprise Financial, Inc.4.50%SEC

Institutional ownership (Q2 2026)

85 institutions reported holding $97.49M of Ampco-Pittsburgh Corporation on Form 13F (63 the quarter before). 30 opened a new position and 9 sold out. Shares held by institutions: +12%.

Largest holdersSharesValue
GAMCO INVESTORS, INC. ET AL2,459,829$21.28M
GABELLI FUNDS LLC1,391,800$12.04M
BlackRock, Inc.982,611$8.50M
AMERIPRISE FINANCIAL INC905,679$7.83M
WELLS FARGO & COMPANY/MN660,945$5.72M
VANGUARD CAPITAL MANAGEMENT LLC604,091$5.23M
RENAISSANCE TECHNOLOGIES LLC414,419$3.58M
GEODE CAPITAL MANAGEMENT, LLC342,836$2.97M
AMERICAN CENTURY COMPANIES INC328,848$2.84M
DIMENSIONAL FUND ADVISORS LP295,444$2.56M

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