DOSSIER · 13F Holders · Q2 2026
AP

AMPCO-PITTSBURG CORP

87 institutions still hold AMPCO-PITTSBURG CORP as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 032037103·87 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$86M
visible holders
Holders
87
filers reporting
Concentration
24.65%
GAMCO INVESTORS, INC. ET AL #1
top holder share
AI Holders Summary · Q2 2026

87 institutions reported AP in Q2 2026. GAMCO INVESTORS, INC. ET AL leads at 24.6% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
GAMCO INVESTORS, INC. ET AL
CIK 0000807249
$21M2.5M0.19%Q2 2026
02
GABELLI FUNDS LLC
CIK 0001081407
$12M1.4M0.08%Q2 2026
03
BlackRock, Inc.
CIK 0002012383
$8M983K0.00%Q2 2026
04
AMERIPRISE FINANCIAL INC
CIK 0000820027
$8M906K0.00%Q2 2026
05
WELLS FARGO & COMPANY/MN
CIK 0000072971
$6M661K0.00%Q2 2026
06
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$5M604K0.00%Q2 2026
07
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$4M414K0.00%Q2 2026
08
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$3M343K0.00%Q2 2026
09
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$3M329K0.00%Q2 2026
10
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$3M295K0.00%Q2 2026
11
Meros Investment Management, LP
CIK 0001911372
$2M240K0.66%Q2 2026
12
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$2M238K0.00%Q2 2026
13
O'SHAUGHNESSY ASSET MANAGEMENT, LLC
CIK 0001423442
$2M174K0.01%Q2 2026
14
STATE STREET CORP
CIK 0000093751
$1M159K0.00%Q2 2026
15
Huntleigh Advisors, Inc.
CIK 0001367653
$1M141K0.17%Q2 2026
16
RITHOLTZ WEALTH MANAGEMENT
CIK 0001698218
$1M133K0.02%Q2 2026
17
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$1M168K0.00%Q1 2026
18
Teton Advisors, LLC
CIK 0002086025
$1M130K0.65%Q2 2026
19
BRIDGEWAY CAPITAL MANAGEMENT, LLC
CIK 0001107261
$1M125K0.02%Q2 2026
20
NORTHERN TRUST CORP
CIK 0000073124· Index
$1M121K0.00%Q2 2026
Page 1 of 5
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Insiders at AMPCO-PITTSBURG CORP
Lyon SamuelMcbrayer BrettAnderson David GeorgeMcnair Darrell LGerman Michael IPaul Laurence EFessenden Elizabeth AnneLieberman William K