Ampco Pittsburgh AP Institutional Ownership

NYSE AP

$8.20 -0.30 (-3.53%)

As of: Oct 21, 2026 · 3:59 PM EDT

Institutions by Trading Activity

86 Institutions

Increased 59 68.6%

Unchanged 8 9.3%

Reduced 19 22.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

55.78%

▲+5.06 pp QoQ

Shares Held by Institutions

11.50Mn

of 20.61Mn outstanding

▲+12.04% QoQ

Shares Outstanding

20.61Mn

9.12Mn held outside 13F filers

Institutional Investors

filed 13F for Jun 2026

▲+24 vs prior quarter

Net Shares Added (QoQ)

+1.24Mn

accumulated since last quarter

Value of Holdings

$97.74Mn

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

Updated Oct 10, 2026

Ampco Pittsburgh Corp (NYSE:AP) had 86 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

These investors held 55.78% of Ampco Pittsburgh's outstanding shares at the end of Q2 2026, up from 50.72% in Q1 2026.
Total shares held in AP rose 12.04% from Q1 2026; the number of holders rose 126.32% from Q2 2025.
Looking at the 86 holders of AP individually, 59 added to their positions, 19 reduced their stakes and 8 left their positions unchanged.
Combined, institutional investors held 11.5Mn shares of AP as of Q2 2026, up 1.24Mn from the prior quarter and up 2.95Mn from a year earlier.
As of June 30, 2026, the biggest holder of Ampco Pittsburgh was Gamco Investors, Inc. with 2.46Mn shares, or 11.93% of shares outstanding.
Among holders that already owned Ampco Pittsburgh, the biggest buyers in Q2 2026 were BlackRock, Inc. (+779.48K shares), Geode Capital Management, LLC (+207.77K shares), Susquehanna International Group, LLP (+168.72K shares), American Century Companies Inc (+109.99K shares) and Acadian Asset Management LLC (+107.42K shares).
On the other side, among holders that kept a position in Ampco Pittsburgh, the largest reductions in Q2 2026 came from Ameriprise Financial Inc (-267.35K shares), Millennium Management LLC (-140.62K shares), SEI Investments Co (-118.42K shares), Huntleigh Advisors, Inc. (-89.31K shares) and Marshall Wace, LLP (-80.93K shares).
According to Business Quant data, the leading holders of AP for Q2 2026 were Gamco Investors, Inc. (2.46Mn shares), Gabelli Funds LLC (1.39Mn shares), BlackRock, Inc. (982.61K shares), Ameriprise Financial Inc (905.68K shares), Wells Fargo & Company (660.95K shares), Vanguard Capital Management LLC (604.09K shares), Renaissance Technologies LLC (414.42K shares), Geode Capital Management, LLC (342.84K shares), American Century Companies Inc (328.85K shares) and Dimensional Fund Advisors LP (295.44K shares).

Form 13F Holdings

86 Institutional Holders

Report period 30 Jun, 2026

Total shares held 11.50Mn

Of outstanding 55.78%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	GAMCO INVESTORS, INC. ET AL	0000807249	2,459,829	11.93%	▼32,128	-1.29%	$21.28Mn
2	GABELLI FUNDS LLC	0001081407	1,391,800	6.75%	▼8,000	-0.57%	$12.04Mn
3	BlackRock, Inc.	0002012383	982,611	4.77%	▲779,478	+383.73%	$8.50Mn
4	Ameriprise Financial Inc	0000820027	905,679	4.39%	▼267,345	-22.79%	$7.83Mn
5	Wells Fargo & Company/Mn	0000072971	660,945	3.21%	▲4,944	+0.75%	$5.72Mn
6	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	604,091	2.93%	▲3,977	+0.66%	$5.23Mn
7	RENAISSANCE TECHNOLOGIES LLC	0001037389	414,419	2.01%	▼8,800	-2.08%	$3.58Mn
8	GEODE CAPITAL MANAGEMENT, LLC	0001214717	342,836	1.66%	▲207,773	+153.83%	$2.97Mn
9	AMERICAN CENTURY COMPANIES INC	0000748054	328,848	1.60%	▲109,988	+50.25%	$2.84Mn
10	DIMENSIONAL FUND ADVISORS LP	0000354204	295,444	1.43%	▼59,983	-16.88%	$2.56Mn
11	Meros Investment Management, LP	0001911372	239,910	1.16%	▲25,060	+11.66%	$2.08Mn
12	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0001446194	195,321	0.95%	▲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	0.77%	▲99,900	+168.14%	$1.38Mn
16	JANE STREET GROUP, LLC	0001595888	150,371	0.73%	▼17,930	-10.65%	$1.30Mn
17	Huntleigh Advisors, Inc.	0001367653	141,172	0.68%	▼89,306	-38.75%	$1.22Mn
18	RITHOLTZ WEALTH MANAGEMENT	0001698218	132,943	0.64%	▲14,164	+11.92%	$1.15Mn
19	Teton Advisors, LLC	0002086025	130,000	0.63%	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 86 holders