Stock Ownership/QNST

QUINSTREET INC (QNST): Ownership & Insider Activity

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

Reported Holders
17
13F filers
Aggregate Value
$80.0M
Across holders
Last Price
$20.49
2026-08-24
Sector
Communication Services
GICS
Quarterly fund activity10 increased7 reduced2 exited
Full exits: MARSHALL WACE, LLP, First Eagle Investment Management, LLC
Institutional Holders of QNST
↗
17 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund2.52M$36.9M46.2%0.0%Added$-173.8MQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund928K$13.6M17.0%0.0%Added+$13.3MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund586K$8.6M10.7%0.0%Reduced$-7.7MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund347K$5.1M6.4%0.0%Added+$1.7MQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund297K$4.4M5.4%0.0%Reduced$-7.8MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund263K$3.9M4.8%0.0%Added$-740KQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund116K$1.7M2.1%0.0%Reduced$-3.5MQ2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund111K$1.6M2.0%0.0%Reduced$-132KQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund102K$1.5M1.9%0.0%Added+$958KQ2 2026
Magnetar Financial LLC
CIK 0001352851
Hedge Fund50K$725K0.9%0.0%Added$-103KQ2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$36.9M· 46.2% of total· 0.0% port· 2.52M sh· $-173.8M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$13.6M· 17.0% of total· 0.0% port· 928K sh· +$13.3M QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$8.6M· 10.7% of total· 0.0% port· 586K sh· $-7.7M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$5.1M· 6.4% of total· 0.0% port· 347K sh· +$1.7M QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$4.4M· 5.4% of total· 0.0% port· 297K sh· $-7.8M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$3.9M· 4.8% of total· 0.0% port· 263K sh· $-740K QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$1.7M· 2.1% of total· 0.0% port· 116K sh· $-3.5M QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$1.6M· 2.0% of total· 0.0% port· 111K sh· $-132K QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$1.5M· 1.9% of total· 0.0% port· 102K sh· +$958K QoQ· Q2 2026
Magnetar Financial LLCAdded
Hedge Fund
$725K· 0.9% of total· 0.0% port· 50K sh· $-103K QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCReduced
Hedge Fund
$618K· 0.8% of total· 0.0% port· 42K sh· $-7.3M QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$576K· 0.7% of total· 0.0% port· 39K sh· — QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$390K· 0.5% of total· 0.0% port· 27K sh· — QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$245K· 0.3% of total· 0.0% port· 17K sh· $-85K QoQ· Q2 2026
CAXTON ASSOCIATES LLPAdded
Hedge Fund
$164K· 0.2% of total· 0.0% port· 11K sh· — QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$7K· 0.0% of total· 0.0% port· 492 sh· +$3K QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$2K· 0.0% of total· 0.0% port· 142 sh· — QoQ· Q2 2026
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