Stock Ownership/MARA

MARA HOLDINGS INC (MARA): Ownership & Insider Activity

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

Reported Holders
18
13F filers
Aggregate Value
$283.7M
Across holders
Last Price
$11.18
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity13 increased3 reduced3 exited
Full exits: MARSHALL WACE, LLP, Squarepoint Ops LLC, CAPSTONE INVESTMENT ADVISORS, LLC
Institutional Holders of MARA
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18 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
SHAW D E & CO INC
CIK 0001009207
Hedge Fund10.38M$144.1M50.8%0.1%Added+$125.8MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund2.57M$35.7M12.6%0.0%Added+$8.5MQ2 2026
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
Hedge Fund1.48M$20.6M7.2%0.0%Added+$18.0MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund1.23M$17.1M6.0%0.0%Added+$8.5MQ2 2026
BALYASNY ASSET MANAGEMENT LLC
CIK 0001218710
Hedge Fund1.13M$15.8M5.6%0.0%Added+$12.5MQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund1.11M$15.4M5.4%0.0%Added—Q2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund973K$13.5M4.8%0.0%Added+$13.5MQ2 2026
Man Group plc
CIK 0001637460
Hedge Fund601K$8.3M2.9%0.0%Added+$3.4MQ2 2026
Walleye Capital LLC
CIK 0001758720
Hedge Fund581K$8.1M2.8%0.0%Added+$4.6MQ2 2026
Schonfeld Strategic Advisors LLC
CIK 0001665241
Hedge Fund190K$2.6M0.9%0.0%Added—Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$144.1M· 50.8% of total· 0.1% port· 10.38M sh· +$125.8M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$35.7M· 12.6% of total· 0.0% port· 2.57M sh· +$8.5M QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$20.6M· 7.2% of total· 0.0% port· 1.48M sh· +$18.0M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$17.1M· 6.0% of total· 0.0% port· 1.23M sh· +$8.5M QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCAdded
Hedge Fund
$15.8M· 5.6% of total· 0.0% port· 1.13M sh· +$12.5M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCAdded
Hedge Fund
$15.4M· 5.4% of total· 0.0% port· 1.11M sh· — QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$13.5M· 4.8% of total· 0.0% port· 973K sh· +$13.5M QoQ· Q2 2026
Man Group plcAdded
Hedge Fund
$8.3M· 2.9% of total· 0.0% port· 601K sh· +$3.4M QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$8.1M· 2.8% of total· 0.0% port· 581K sh· +$4.6M QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$2.6M· 0.9% of total· 0.0% port· 190K sh· — QoQ· Q2 2026
Lighthouse Investment Partners, LLCAdded
Hedge Fund
$972K· 0.3% of total· 0.0% port· 70K sh· — QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$505K· 0.2% of total· 0.1% port· 36K sh· — QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$462K· 0.2% of total· 0.0% port· 33K sh· $-95.2M QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$201K· 0.1% of total· 0.0% port· 14K sh· $-513K QoQ· Q2 2026
Fortress Investment Group LLCUnchanged
Hedge Fund
$195K· 0.1% of total· 0.0% port· 14K sh· +$0 QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$117K· 0.0% of total· 0.0% port· 8K sh· $-106K QoQ· Q2 2026
Ancora Advisors, LLCUnchanged
Hedge Fund
$3K· 0.0% of total· 0.0% port· 225 sh· +$0 QoQ· Q2 2026
Alphadyne Asset Management LPReduced
Hedge Fund
$3K· 0.0% of total· 0.0% port· 184 sh· $-305K QoQ· Q2 2026
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