ISSUER PROFILE · CIK 0000006176

AMPCO PITTSBURGH CORPAP

19 13D/G filings 6 distinct filers 0 insider transactions (365d)

Cross-Reference Snapshot

Activist filings

19 SC

Distinct filers

multi-activist cluster

Insiders (365d)

0 buys · 0 sales

Latest short DTC

8.63

as of 2026-10-15

Filed	Form	Filer	Stake	Shares
2024-02-20	SC	2006 Irrevocable Trust of Laura W. Van Loan for the Benefit of Mary M. Crawford	—	—	view →
2022-11-28	SC	Louis Berkman Investment CO	—	—	view →
2022-03-01	SC	Louis Berkman Investment CO	—	—	view →
2022-02-11	SC	Ancora Advisors, LLC	—	—	view →
2021-08-16	SC	Altor Fund II GP Ltd	—	—	view →
2021-07-01	SC	2006 Irrevocable Trust of Laura W. Van Loan for the Benefit of Mary M. Crawford	—	—	view →
2021-04-09	SC	2006 Irrevocable Trust of Laura W. Van Loan for the Benefit of Mary M. Crawford	—	—	view →
2021-03-19	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2021-03-16	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2021-02-01	SC	2006 Irrevocable Trust of Laura W. Van Loan for the Benefit of Mary M. Crawford	—	—	view →
2020-10-01	SC	2006 Irrevocable Trust of Laura W. Van Loan for the Benefit of Mary M. Crawford	—	—	view →
2020-08-25	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2020-08-17	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2020-08-12	SC	Altor Holdings Ltd	—	—	view →
2020-06-05	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2020-04-28	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2020-04-15	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2019-08-29	SC	GAMCO INVESTORS, INC. ET AL	—	—	view →
2018-04-10	SC	Louis Berkman Investment CO	—	—	view →

Settlement	Short Interest	Days to Cover	% Δ vs prior
2026-10-15	721,589	8.63	-14.0%
2026-09-30	839,351	9.00	-2.5%
2026-09-15	861,287	14.58	+2.4%
2026-08-31	840,807	11.15	+1.9%
2026-08-14	825,266	6.77	+1.0%
2026-07-31	817,073	6.53	+20.6%
2026-07-15	677,680	2.65	+14.7%
2026-06-30	590,728	1.71	+108.5%
2026-06-15	283,348	1.81	-21.1%
2026-05-29	359,250	2.36	-19.0%
2026-05-15	443,478	2.76	-2.4%
2026-04-30	454,475	2.90	+10.4%

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