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Ampco-Pittsburgh
AP

63 hedge funds and large institutions have $69M invested in Ampco-Pittsburgh in 2026 Q1 according to their latest regulatory filings, with 26 funds opening new positions, 22 increasing their positions, 9 reducing their positions, and 5 closing their positions.

New
Increased
Maintained
Reduced
Closed

420% more first-time investments, than exits

New positions opened: 26 | Existing positions closed: 5

367% more call options, than puts

Call options by funds: $752K | Put options by funds: $161K

144% more repeat investments, than reductions

Existing positions increased: 22 | Existing positions reduced: 9

56% more capital invested

Capital invested by funds: $44.3M → $69M (+$24.6M)

47% more funds holding

Funds holding: 43 → 63 (+20)

9.57% more ownership

Funds ownership: 40.92% → 50.49% (+9.6%)

Holders
63
Holders Change
+20
Holders Change %
+46.51%
% of All Funds
0.78%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
26
Increased
22
Reduced
9
Closed
5
Calls
$752K
Puts
$161K
Net Calls
+$591K
Net Calls Change
+$509K

Top Buyers

Rank Fund Capital Flow
1
Wells Fargo
Wells Fargo
California
+$4.71M
2
HA
Huntleigh Advisors
Missouri
+$1.66M
3
American Century Companies
American Century Companies
Missouri
+$1.57M
4
MIM
Meros Investment Management
Texas
+$1.54M
5
Millennium Management
Millennium Management
New York
+$1.15M

Top Sellers

Rank Fund Capital Flow
1
AA
Ancora Advisors
Ohio
-$1.89M
2
Marshall Wace
Marshall Wace
United Kingdom
-$338K
3
Renaissance Technologies
Renaissance Technologies
New York
-$274K
4
EI
EAM Investors
California
-$234K
5
State Street
State Street
Massachusetts
-$149K
Name Holding Trade Value Shares
Change 		Change in
Stake
GI
1
GAMCO Investors
Connecticut
$16.7M +$152K +21,129 +0.9%
GF
2
Gabelli Funds
New York
$9.41M -$32.3K -4,500 -0.3%
Ameriprise
3
Ameriprise
Minnesota
$7.88M +$76K +10,579 +0.9%
Wells Fargo
4
Wells Fargo
California
$4.41M +$4.71M +656,000 +65,600,000%
VCM
5
Vanguard Capital Management
Pennsylvania
$4.03M +$4.31M +600,114 New
Renaissance Technologies
6
Renaissance Technologies
New York
$2.84M -$274K -38,083 -8%
Dimensional Fund Advisors
7
Dimensional Fund Advisors
Texas
$2.39M +$147K +20,454 +6%
HA
8
Huntleigh Advisors
Missouri
$1.55M +$1.66M +230,478 New
American Century Companies
9
American Century Companies
Missouri
$1.47M +$1.57M +218,860 New
MIM
10
Meros Investment Management
Texas
$1.44M +$1.54M +214,850 New
BlackRock
11
BlackRock
New York
$1.37M +$256K +35,624 +21%
SEI Investments
12
SEI Investments
Pennsylvania
$1.24M +$676K +94,002 +104%
Jane Street
13
Jane Street
New York
$1.13M +$1.03M +142,932 +563%
Marshall Wace
14
Marshall Wace
United Kingdom
$1.08M -$338K -47,051 -23%
Millennium Management
15
Millennium Management
New York
$1.08M +$1.15M +160,408 New
BCM
16
Bridgeway Capital Management
Texas
$1.04M +$337K +46,875 +44%
Geode Capital Management
17
Geode Capital Management
Massachusetts
$909K -$50.6K -7,036 -5%
TA
18
Teton Advisors
New York
$874K – – –
OSAM
19
O'Shaughnessy Asset Management
Connecticut
$823K +$880K +122,418 New
RWM
20
Ritholtz Wealth Management
New York
$798K +$854K +118,779 New
EI
21
EAM Investors
California
$778K -$234K -32,602 -22%
Acadian Asset Management
22
Acadian Asset Management
Massachusetts
$559K +$130K +18,077 +28%
VFT
23
Vanguard Fiduciary Trust
Pennsylvania
$489K +$523K +72,813 New
RC
24
RBF Capital
California
$403K – – –
State Street
25
State Street
Massachusetts
$399K -$149K -20,700 -26%
1
2 3

AP Hedge Fund Activity: Q1 2026 in Review

63 of the 8,127 institutional investors tracked by Wall St. Rank reported a position in Ampco-Pittsburgh (AP) for Q1 2026, worth a combined $69M — up 56% from $44.3M a quarter earlier.

Buyers outnumbered sellers: 26 funds opened new AP positions and 5 closed out — a net gain of 21 holders — while 22 added to existing stakes and 9 trimmed.

The largest buyer was Wells Fargo, adding an estimated $4.71M. The largest seller was Ancora Advisors, exiting entirely with an estimated $1.89M sold.

  • 63 institutional investors held Ampco-Pittsburgh (AP) as of Q1 2026, up from 43 in Q4 2025.
  • Funds reported $69M of Ampco-Pittsburgh stock for Q1 2026, up 56% quarter-over-quarter.
  • 26 funds opened new Ampco-Pittsburgh positions in Q1 2026 and 5 closed out, a net change of +21 holders.
  • The largest Ampco-Pittsburgh buyer in Q1 2026 was Wells Fargo, an estimated $4.71M added.
  • The largest Ampco-Pittsburgh seller in Q1 2026 was Ancora Advisors, an estimated $1.89M sold.

Based on aggregated 13F filings for Q1 2026.