Ampco Pittsburgh Corp (AP) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

1,603,239Shares held by institutions

$10,340,892Value of institutional holdings

42.53%Institutional ownership %

2.36%Shares Changed QoQ

39No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Ampco Pittsburgh Corp (NYSE:AP) showed up in the 13F filings of 43 institutional investors as of December 2025.

Collectively, these holders controlled 41.4% of Ampco Pittsburgh's outstanding shares in December 2025, up from 41.0% in September 2025.
They increased total shares held in AP by 1.14% quarter over quarter, and investors in Ampco Pittsburgh increased 16.22% from a year ago.
Of these 43 funds, 24 grew their exposure to Ampco Pittsburgh, 11 cut back, and 8 maintained positions.
Combined, these investors held 8.38Mn shares in AP for December 2025, up by 94.83K shares quarter on quarter, and up 34.77K shares year over year.
As of December 31, 2025, the biggest holder of Ampco Pittsburgh is GAMCO INVESTORS, INC. ET AL at 2.47Mn shares, representing 12.22% of shares outstanding.
Leading buyers of Ampco Pittsburgh shares for the quarter ending December 2025 were MARSHALL WACE, LLP (208.34K), Informed Momentum Co LLC (148.4K), Sei Investments Co (90.33K), GAMCO INVESTORS, INC. ET AL (86.62K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (41.56K).
The largest sales of AP for the quarter ending December 2025 came from Ancora Advisors LLC (597.22K), BRIDGEWAY CAPITAL MANAGEMENT, LLC (20.0K), RENAISSANCE TECHNOLOGIES LLC (19.32K), CITADEL ADVISORS LLC (17.52K), VANGUARD GROUP INC (13.07K).
According to Business Quant data, leading holders of AP for December 2025 are GAMCO INVESTORS, INC. ET AL (2.47Mn), GABELLI FUNDS LLC (1.4Mn), Ameriprise Financial Inc (1.16Mn), VANGUARD GROUP INC (654.64K), RENAISSANCE TECHNOLOGIES LLC (461.3K), Ancora Advisors LLC (354.1K), DIMENSIONAL FUND ADVISORS LP (334.97K), MARSHALL WACE, LLP (208.34K), BlackRock, Inc. (167.51K), Informed Momentum Co LLC (148.4K).

43 Institutional Holders

1,603,239 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	-1,729	-1.02%	$0.00
GAMCO INVESTORS, INC. ET AL	31 Dec, 2025	86,618	3.63%	$0.00
Teton Advisors, LLC	31 Dec, 2025	21,500	19.82%	$0.00
GABELLI FUNDS LLC	31 Dec, 2025	23,500	1.70%	$0.00
Central Pacific Bank - Trust Division	31 Dec, 2025	0	0.00%	$0.00
Ameriprise Financial Inc	31 Dec, 2025	10,780	0.94%	$0.00
UBS Group AG	31 Dec, 2025	-71	-0.44%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	-13,069	-1.96%	$0.00
HUB Investment Partners, LLC	31 Dec, 2025	10,300	0.00%	$0.00
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	-19,317	-4.02%	$0.00
Belvedere Trading LLC	31 Dec, 2025	10,287	0.00%	$0.00
Ancora Advisors LLC	31 Dec, 2025	-597,218	-62.78%	$0.00
NewEdge Advisors, LLC	31 Dec, 2025	768	71.05%	$0.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	-1,147	-0.34%	$0.00
OSAIC HOLDINGS, INC.	31 Dec, 2025	0	0.00%	$0.00
MARSHALL WACE, LLP	31 Dec, 2025	208,342	0.00%	$0.00
Farther Finance Advisors, LLC	31 Dec, 2025	300	0.00%	$0.00
Informed Momentum Co LLC	31 Dec, 2025	148,395	0.00%	$0.00
SHP Wealth Management	31 Dec, 2025	100	0.00%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	0	0.00%	$0.00

1 - 20 of 43

Research Tools