Stock Ownership/GHM

GRAHAM CORP (GHM): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in GHM · Industrials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
10
13F filers
Aggregate Value
$97.8M
Across holders
Last Price
$97.16
2026-08-24
Sector
Industrials
GICS
Quarterly fund activity6 increased3 reduced2 exited
Full exits: MILLENNIUM MANAGEMENT LLC, ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
Institutional Holders of GHM
↗
10 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
GAMCO INVESTORS, INC. ET AL
CIK 0000807249
Institutional Manager222K$27.5M28.1%0.2%Reduced$-2.7MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund208K$25.7M26.3%0.0%Reduced$-4.9MQ2 2026
First Eagle Investment Management, LLC
CIK 0001325447
Institutional Manager194K$24.0M24.6%0.0%Reduced$-2.6MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund77K$9.6M9.8%0.0%Added+$8.6MQ2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund36K$4.5M4.6%0.0%Added—Q2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund25K$3.2M3.2%0.0%Added+$977KQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund10K$1.2M1.2%0.0%Added+$1.2MQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund9K$1.1M1.1%0.0%Added—Q2 2026
Walleye Capital LLC
CIK 0001758720
Hedge Fund5K$594K0.6%0.0%Added—Q2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund4K$497K0.5%0.0%Unchanged+$0Q2 2026
GAMCO INVESTORS, INC. ET ALReduced
Institutional Manager
$27.5M· 28.1% of total· 0.2% port· 222K sh· $-2.7M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$25.7M· 26.3% of total· 0.0% port· 208K sh· $-4.9M QoQ· Q2 2026
First Eagle Investment Management, LLCReduced
Institutional Manager
$24.0M· 24.6% of total· 0.0% port· 194K sh· $-2.6M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$9.6M· 9.8% of total· 0.0% port· 77K sh· +$8.6M QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$4.5M· 4.6% of total· 0.0% port· 36K sh· — QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$3.2M· 3.2% of total· 0.0% port· 25K sh· +$977K QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$1.2M· 1.2% of total· 0.0% port· 10K sh· +$1.2M QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$1.1M· 1.1% of total· 0.0% port· 9K sh· — QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$594K· 0.6% of total· 0.0% port· 5K sh· — QoQ· Q2 2026
Rockefeller Capital Management L.P.Unchanged
Hedge Fund
$497K· 0.5% of total· 0.0% port· 4K sh· +$0 QoQ· Q2 2026
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