Stock Ownership/AAMI

ACADIAN ASSET MANAGEMENT INC (AAMI): Ownership & Insider Activity

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

Reported Holders
21
13F filers
Aggregate Value
$635.1M
Across holders
Last Price
$91.90
2026-08-24
Sector
Financials
GICS
Quarterly fund activity11 increased8 reduced1 exited
Full exits: Man Group plc
Institutional Holders of AAMI
↗
21 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
PAULSON & CO INC
CIK 0001035674
Hedge Fund5.84M$417.9M65.8%16.2%Reduced$-135.9MQ2 2026
Woodline Partners LP
CIK 0001784547
Hedge Fund884K$63.2M10.0%0.2%Added+$13.0MQ2 2026
SOROS FUND MANAGEMENT LLC
CIK 0001029160
Family Office610K$43.6M6.9%0.5%Reduced$-2.8MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund524K$37.5M5.9%0.0%Added+$3.2MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund254K$18.2M2.9%0.0%Added$-61.0MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund149K$10.7M1.7%0.0%Reduced$-6.6MQ2 2026
JUPITER ASSET MANAGEMENT LTD
CIK 0001215838
Hedge Fund132K$9.4M1.5%0.0%Unchanged+$0Q2 2026
Walleye Capital LLC
CIK 0001758720
Hedge Fund83K$5.9M0.9%0.0%Added+$4.5MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund62K$4.4M0.7%0.0%Reduced+$4.2MQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund56K$4.0M0.6%0.0%Reduced$-8.5MQ2 2026
PAULSON & CO INCReduced
Hedge Fund
$417.9M· 65.8% of total· 16.2% port· 5.84M sh· $-135.9M QoQ· Q2 2026
Woodline Partners LPAdded
Hedge Fund
$63.2M· 10.0% of total· 0.2% port· 884K sh· +$13.0M QoQ· Q2 2026
SOROS FUND MANAGEMENT LLCReduced
Family Office
$43.6M· 6.9% of total· 0.5% port· 610K sh· $-2.8M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$37.5M· 5.9% of total· 0.0% port· 524K sh· +$3.2M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$18.2M· 2.9% of total· 0.0% port· 254K sh· $-61.0M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPReduced
Hedge Fund
$10.7M· 1.7% of total· 0.0% port· 149K sh· $-6.6M QoQ· Q2 2026
JUPITER ASSET MANAGEMENT LTDUnchanged
Hedge Fund
$9.4M· 1.5% of total· 0.0% port· 132K sh· +$0 QoQ· Q2 2026
Walleye Capital LLCAdded
Hedge Fund
$5.9M· 0.9% of total· 0.0% port· 83K sh· +$4.5M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$4.4M· 0.7% of total· 0.0% port· 62K sh· +$4.2M QoQ· Q2 2026
Qube Research & Technologies LtdReduced
Hedge Fund
$4.0M· 0.6% of total· 0.0% port· 56K sh· $-8.5M QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCReduced
Hedge Fund
$3.7M· 0.6% of total· 0.0% port· 52K sh· $-1.2M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$3.6M· 0.6% of total· 0.0% port· 50K sh· +$3.6M QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$2.4M· 0.4% of total· 0.0% port· 34K sh· $-1.6M QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$2.3M· 0.4% of total· 0.0% port· 32K sh· $-2.1M QoQ· Q2 2026
Squarepoint Ops LLCAdded
Hedge Fund
$2.1M· 0.3% of total· 0.0% port· 29K sh· — QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$1.6M· 0.3% of total· 0.2% port· 23K sh· — QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$1.4M· 0.2% of total· 0.0% port· 20K sh· +$898K QoQ· Q2 2026
Point72 Asset Management, L.P.Added
Hedge Fund
$1.3M· 0.2% of total· 0.0% port· 19K sh· — QoQ· Q2 2026
CAPSTONE INVESTMENT ADVISORS, LLCAdded
Hedge Fund
$799K· 0.1% of total· 0.0% port· 11K sh· — QoQ· Q2 2026
HBK INVESTMENTS L PAdded
Hedge Fund
$715K· 0.1% of total· 0.0% port· 10K sh· — QoQ· Q2 2026
MARSHALL WACE, LLPUnchanged
Hedge Fund
$286K· 0.0% of total· 0.0% port· 4K sh· +$0 QoQ· Q2 2026
1–10 of 21
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