EROCK INC (EROC): Ownership & Insider Activity

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

Reported Holders
17
13F filers
Aggregate Value
$90.4M
Across holders
Last Price
$12.65
2026-10-02
Sector
—
GICS
Quarterly fund activity17 increased0 reduced0 exited
Institutional Holders of EROC
↗
17 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
BALYASNY ASSET MANAGEMENT LLC
CIK 0001218710
Hedge Fund2.10M$30.4M33.7%0.0%Added—Q2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund1.51M$21.8M24.2%0.0%Added—Q2 2026
SOROS FUND MANAGEMENT LLC
CIK 0001029160
Family Office376K$5.5M6.0%0.1%Added—Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
Hedge Fund369K$5.4M5.9%0.0%Added—Q2 2026
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
Hedge Fund305K$4.4M4.9%0.0%Added—Q2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund281K$4.1M4.5%0.0%Added—Q2 2026
Lighthouse Investment Partners, LLC
CIK 0001600344
Hedge Fund247K$3.6M4.0%0.1%Added—Q2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund225K$3.3M3.6%0.0%Added—Q2 2026
Woodline Partners LP
CIK 0001784547
Hedge Fund177K$2.6M2.8%0.0%Added—Q2 2026
Schonfeld Strategic Advisors LLC
CIK 0001665241
Hedge Fund176K$2.5M2.8%0.0%Added—Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$30.4M· 33.7% of total· 0.0% port· 2.10M sh· — QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$21.8M· 24.2% of total· 0.0% port· 1.51M sh· — QoQ· Q2 2026
SOROS FUND MANAGEMENT LLCAdded
Family Office
$5.5M· 6.0% of total· 0.1% port· 376K sh· — QoQ· Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Added
Hedge Fund
$5.4M· 5.9% of total· 0.0% port· 369K sh· — QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$4.4M· 4.9% of total· 0.0% port· 305K sh· — QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$4.1M· 4.5% of total· 0.0% port· 281K sh· — QoQ· Q2 2026
Lighthouse Investment Partners, LLCAdded
Hedge Fund
$3.6M· 4.0% of total· 0.1% port· 247K sh· — QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$3.3M· 3.6% of total· 0.0% port· 225K sh· — QoQ· Q2 2026
Woodline Partners LPAdded
Hedge Fund
$2.6M· 2.8% of total· 0.0% port· 177K sh· — QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$2.5M· 2.8% of total· 0.0% port· 176K sh· — QoQ· Q2 2026
ELEMENT CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$2.1M· 2.3% of total· 0.1% port· 142K sh· — QoQ· Q2 2026
STEADFAST CAPITAL MANAGEMENT LPAdded
Hedge Fund
$1.3M· 1.4% of total· 0.0% port· 90K sh· — QoQ· Q2 2026
Third Point LLCAdded
Hedge Fund
$1.2M· 1.3% of total· 0.0% port· 83K sh· — QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$901K· 1.0% of total· 0.0% port· 62K sh· — QoQ· Q2 2026
Pentwater Capital Management LPAdded
Hedge Fund
$870K· 1.0% of total· 0.0% port· 60K sh· — QoQ· Q2 2026
Verition Fund Management LLCAdded
Hedge Fund
$363K· 0.4% of total· 0.0% port· 25K sh· — QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$128K· 0.1% of total· 0.0% port· 9K sh· — QoQ· Q2 2026
1–10 of 17
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