Ampco Pittsburgh AP Institutional Ownership

NYSE AP

$8.84 -0.18 (-2.00%)

At close: Sep 30, 2026 · 4:00 PM EDT

Institutions by Trading Activity

87 Institutions

Increased 60 69.0%

Unchanged 8 9.2%

Reduced 19 21.8%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

56.47%

▲+5.75 pp QoQ

Shares Held by Institutions

11.54Mn

of 20.43Mn outstanding

▲+14.40% QoQ

Shares Outstanding

20.43Mn

8.89Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+25 vs prior quarter

Net Shares Added (QoQ)

+1.45Mn

accumulated since last quarter

Value of Holdings

$101.99Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Ampco Pittsburgh Corp (NYSE:AP) has 87 institutional investors with active 13F positions as of June 2026.

These investors held 56.5% of outstanding shares in June 2026, up from 50.7% in March 2026.
Their total shares held in AP increased 14.4% from the prior quarter, while the number of investors in Ampco Pittsburgh increased 123.08% year over year.
During the quarter, 60 of these 87 funds increased positions in AP, 19 reduced exposure, and 8 held steady.
Institutional investors collectively held 11.54Mn shares in Ampco Pittsburgh as of June 2026, up by 1.45Mn shares quarter on quarter, and up 2.99Mn shares year over year.
As of June 30, 2026, the biggest holder of Ampco Pittsburgh is GAMCO INVESTORS, INC. ET AL at 2.46Mn shares, representing 12.04% of shares outstanding.
The most significant purchases of AP for the quarter ending June 2026 came from BlackRock, Inc. (779.48K), GEODE CAPITAL MANAGEMENT, LLC (207.77K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (168.72K), VANGUARD PORTFOLIO MANAGEMENT LLC (112.72K), AMERICAN CENTURY COMPANIES INC (109.99K).
The largest sellers of Ampco Pittsburgh for the quarter ending June 2026 were Ameriprise Financial Inc (267.35K), MILLENNIUM MANAGEMENT LLC (140.62K), Sei Investments Co (118.42K), Huntleigh Advisors, Inc. (89.31K), MARSHALL WACE, LLP (80.93K).
Per Business Quant data, the top 10 holders of Ampco Pittsburgh for the quarter ending June 2026 are GAMCO INVESTORS, INC. ET AL (2.46Mn), GABELLI FUNDS LLC (1.39Mn), BlackRock, Inc. (982.61K), Ameriprise Financial Inc (905.68K), Wells Fargo & Company/Mn (660.94K), VANGUARD CAPITAL MANAGEMENT LLC (604.09K), RENAISSANCE TECHNOLOGIES LLC (414.42K), GEODE CAPITAL MANAGEMENT, LLC (342.84K), AMERICAN CENTURY COMPANIES INC (328.85K), DIMENSIONAL FUND ADVISORS LP (295.44K).

Form 13F Holdings

87 Institutional Holders

Report period 30 Jun, 2026

Total shares held 11.54Mn

Of outstanding 56.47%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	GAMCO INVESTORS, INC. ET AL	0000807249	2,459,829	12.04%	▼32,128	-1.29%	$21.28Mn
2	GABELLI FUNDS LLC	0001081407	1,391,800	6.81%	▼8,000	-0.57%	$12.04Mn
3	BlackRock, Inc.	0002012383	982,611	4.81%	▲779,478	+383.73%	$8.50Mn
4	Ameriprise Financial Inc	0000820027	905,679	4.43%	▼267,345	-22.79%	$7.83Mn
5	Wells Fargo & Company/Mn	0000072971	660,945	3.23%	▲4,944	+0.75%	$5.72Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	604,091	2.96%	▲3,977	+0.66%	$5.23Mn
7	RENAISSANCE TECHNOLOGIES LLC	0001037389	414,419	2.03%	▼8,800	-2.08%	$3.58Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	342,836	1.68%	▲207,773	+153.83%	$2.97Mn
9	AMERICAN CENTURY COMPANIES INC	0000748054	328,848	1.61%	▲109,988	+50.25%	$2.84Mn
10	DIMENSIONAL FUND ADVISORS LP	0000354204	295,444	1.45%	▼59,983	-16.88%	$2.56Mn
11	Meros Investment Management, LP	0001911372	239,910	1.17%	▲25,060	+11.66%	$2.08Mn
12	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0001446194	195,321	0.96%	▲168,722	+634.32%	$1.69Mn
13	ACADIAN ASSET MANAGEMENT LLC	0000916542	191,015	0.93%	▲107,423	+128.51%	$1.65K
14	O'SHAUGHNESSY ASSET MANAGEMENT, LLC	0001423442	174,312	0.85%	▲51,894	+42.39%	$1.51Mn
15	State Street Corp	0000093751	159,316	0.78%	▲99,900	+168.14%	$1.38Mn
16	JANE STREET GROUP, LLC	0001595888	150,371	0.74%	▼17,930	-10.65%	$1.30Mn
17	Huntleigh Advisors, Inc.	0001367653	141,172	0.69%	▼89,306	-38.75%	$1.22Mn
18	RITHOLTZ WEALTH MANAGEMENT	0001698218	132,943	0.65%	▲14,164	+11.92%	$1.15Mn
19	Teton Advisors, LLC	0002086025	130,000	0.64%	0	0.00%	$1.12Mn
20	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0001107261	125,386	0.61%	▼29,024	-18.80%	$1.08Mn

Showing 1 to 20 of 87 holders