Stock Ownership/GRC

GORMAN-RUPP CO (GRC): Ownership & Insider Activity

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

Reported Holders
10
13F filers
Aggregate Value
$85.0M
Across holders
Last Price
$77.82
2026-08-24
Sector
Industrials
GICS
Quarterly fund activity4 increased6 reduced3 exited
Full exits: BALYASNY ASSET MANAGEMENT LLC, Man Group plc, ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
Institutional Holders of GRC
↗
10 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
GAMCO INVESTORS, INC. ET AL
CIK 0000807249
Institutional Manager567K$52.1M61.2%0.5%Reduced$-1.4MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund109K$10.0M11.8%0.0%Added+$2.5MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund75K$6.9M8.1%0.0%Reduced$-5.9MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund69K$6.3M7.4%0.0%Added+$3.5MQ2 2026
Fisher Asset Management, LLC
CIK 0000850529
Institutional Manager34K$3.2M3.7%0.0%Reduced$-279KQ2 2026
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
Hedge Fund34K$3.1M3.6%0.0%Added$-4.6MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund28K$2.6M3.0%0.0%Reduced$-19.6MQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund6K$571K0.7%0.0%Reduced$-2.0MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund4K$323K0.4%0.0%Reduced$-2.0MQ2 2026
Rockefeller Capital Management L.P.
CIK 0001739439
Hedge Fund19$2K0.0%0.0%Added$-642Q2 2026
GAMCO INVESTORS, INC. ET ALReduced
Institutional Manager
$52.1M· 61.2% of total· 0.5% port· 567K sh· $-1.4M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$10.0M· 11.8% of total· 0.0% port· 109K sh· +$2.5M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$6.9M· 8.1% of total· 0.0% port· 75K sh· $-5.9M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$6.3M· 7.4% of total· 0.0% port· 69K sh· +$3.5M QoQ· Q2 2026
Fisher Asset Management, LLCReduced
Institutional Manager
$3.2M· 3.7% of total· 0.0% port· 34K sh· $-279K QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$3.1M· 3.6% of total· 0.0% port· 34K sh· $-4.6M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCReduced
Hedge Fund
$2.6M· 3.0% of total· 0.0% port· 28K sh· $-19.6M QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$571K· 0.7% of total· 0.0% port· 6K sh· $-2.0M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$323K· 0.4% of total· 0.0% port· 4K sh· $-2.0M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$2K· 0.0% of total· 0.0% port· 19 sh· $-642 QoQ· Q2 2026
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