Stock Ownership/GMAB

GENMAB A/S (GMAB): Ownership & Insider Activity

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

Reported Holders
18
13F filers
Aggregate Value
$528.6M
Across holders
Last Price
$33.02
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity13 increased4 reduced0 exited
Institutional Holders of GMAB
↗
18 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund4.98M$136.7M25.9%0.1%Unchanged+$0Q2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund3.52M$96.6M18.3%0.1%Reduced$-24.6MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund3.51M$96.3M18.2%0.1%Added+$32.1MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund2.48M$68.0M12.9%0.0%Added+$58.5MQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund1.69M$46.4M8.8%0.0%Added+$27.8MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund911K$25.0M4.7%0.0%Added+$3.3MQ2 2026
MARSHALL WACE, LLP
CIK 0001318757
Hedge Fund830K$22.8M4.3%0.0%Added+$22.3MQ2 2026
MOORE CAPITAL MANAGEMENT, LP
CIK 0001448574
Hedge Fund420K$11.6M2.2%0.2%Added+$5.7MQ2 2026
Hudson Bay Capital Management LP
CIK 0001393825
Hedge Fund330K$9.1M1.7%0.0%Added+$549KQ2 2026
Schonfeld Strategic Advisors LLC
CIK 0001665241
Hedge Fund141K$3.9M0.7%0.0%Added+$3.5MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPUnchanged
Hedge Fund
$136.7M· 25.9% of total· 0.1% port· 4.98M sh· +$0 QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$96.6M· 18.3% of total· 0.1% port· 3.52M sh· $-24.6M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$96.3M· 18.2% of total· 0.1% port· 3.51M sh· +$32.1M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$68.0M· 12.9% of total· 0.0% port· 2.48M sh· +$58.5M QoQ· Q2 2026
Qube Research & Technologies LtdAdded
Hedge Fund
$46.4M· 8.8% of total· 0.0% port· 1.69M sh· +$27.8M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$25.0M· 4.7% of total· 0.0% port· 911K sh· +$3.3M QoQ· Q2 2026
MARSHALL WACE, LLPAdded
Hedge Fund
$22.8M· 4.3% of total· 0.0% port· 830K sh· +$22.3M QoQ· Q2 2026
MOORE CAPITAL MANAGEMENT, LPAdded
Hedge Fund
$11.6M· 2.2% of total· 0.2% port· 420K sh· +$5.7M QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$9.1M· 1.7% of total· 0.0% port· 330K sh· +$549K QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$3.9M· 0.7% of total· 0.0% port· 141K sh· +$3.5M QoQ· Q2 2026
Point72 Asset Management, L.P.Added
Hedge Fund
$3.7M· 0.7% of total· 0.0% port· 136K sh· — QoQ· Q2 2026
Woodline Partners LPAdded
Hedge Fund
$3.7M· 0.7% of total· 0.0% port· 133K sh· — QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$2.9M· 0.6% of total· 0.0% port· 106K sh· +$2.8M QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$1.2M· 0.2% of total· 0.0% port· 43K sh· — QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$464K· 0.1% of total· 0.0% port· 17K sh· +$336K QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$204K· 0.0% of total· 0.0% port· 7K sh· $-745K QoQ· Q2 2026
Walleye Capital LLCReduced
Hedge Fund
$39K· 0.0% of total· 0.0% port· 1K sh· $-758K QoQ· Q2 2026
Ancora Advisors, LLCReduced
Hedge Fund
$1K· 0.0% of total· 0.0% port· 43 sh· $-2K QoQ· Q2 2026
1–10 of 18
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