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Acadian Asset Management (AAMI) Institutional Ownership

Acadian Asset Management logo
$96.47 +2.30 (+2.44%)
Closing price 10/5/2026 03:59 PM Eastern
Extended Trading
$118.06 +21.60 (+22.39%)
As of 08:10 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Acadian Asset Management (NYSE:AAMI)

Current
Institutional Ownership
Percentage
98.69%
Number of
Institutional Buyers
(last 12 months)
139
Total
Institutional Inflows
(last 12 months)
$1.16B
Number of
Institutional Sellers
(last 12 months)
95
Total
Institutional Outflows
(last 12 months)
$168.45M
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AAMI Institutional Buying and Selling by Quarter

Acadian Asset Management Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/23/2026Envestnet Portfolio Solutions Inc.10,735$768K0.0%+4.6%0.030%
9/16/2026HBK Investments L P10,000$715K0.0%N/A0.028%
9/9/2026Engineers Gate Manager LP34,006$2.43M0.0%-35.5%0.096%
9/9/2026Integrated Wealth Concepts LLC557$40K0.0%N/A0.002%
9/9/2026Squarepoint Ops LLC29,242$2.09M0.0%N/A0.082%
9/8/2026Allworth Financial LP682$49K0.0%+57.9%0.002%
9/8/2026Arizona State Retirement System7,639$546K0.0%-2.6%0.022%
9/8/2026Nykredit A S1,635$117K0.0%N/A0.005%
8/27/2026Corient Private Wealth LP4,622$331K0.0%N/A0.013%
8/26/2026Amundi317,315$22.69M0.0%N/A0.894%
8/25/2026VIRGINIA RETIREMENT SYSTEMS ET Al17,700$1.27M0.0%N/A0.050%
8/23/2026Kintra Wealth LLC2,668$191K0.0%N/A0.008%
8/23/2026HB Wealth Management LLC2,905$208K0.0%N/A0.008%
8/22/2026Concurrent Investment Advisors LLC13,528$967K0.0%-12.1%0.038%
8/21/2026Nykredit A S1,635$117K0.0%N/A0.005%
8/20/2026Susquehanna International Group LLP11,132$796K0.0%-11.0%0.031%
8/20/2026Thornburg Investment Management Inc.55,757$3.99M0.0%+100.7%0.157%
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC103,504$7.40M0.0%+53.5%0.292%
8/19/2026Navellier & Associates Inc.7,971$570K0.0%N/A0.022%
8/19/2026Hsbc Holdings PLC7,206$517K0.0%-41.1%0.020%
8/18/2026Public Employees Retirement System of Ohio534$38K0.0%N/A0.002%
8/17/2026Capstone Investment Advisors LLC11,165$799K0.0%N/A0.031%
8/17/2026Transamerica Financial Advisors LLC2,357$169K0.0%N/A0.007%
8/17/2026Corient Private Wealth LP3,124$223K0.0%N/A0.009%
8/17/2026Azora Capital LP496,005$35.47M1.5%N/A1.398%
8/17/2026Bank of America Corp DE133,241$9.53M0.0%N/A0.375%
8/15/2026Paulson & CO. Inc.5,843,282$417.91M16.2%N/A16.465%
8/15/2026Jupiter Topco LLC151,546$10.84M0.0%N/A0.427%
8/14/2026Hsbc Holdings PLC7,206$517K0.0%N/A0.020%
8/14/2026EFG International AG40,664$2.91M0.1%N/A0.115%
8/14/2026PDT Partners LLC36,197$2.59M0.1%N/A0.102%
8/14/2026Legal & General Group Plc68,012$4.86M0.0%N/A0.192%
8/14/2026The Manufacturers Life Insurance Company14,819$1.06M0.0%N/A0.042%
8/14/2026Algert Global LLC74,067$5.30M0.1%-23.4%0.209%
8/13/2026Kendall Capital Management33,985$2.43M0.4%N/A0.096%
8/12/2026Quantbot Technologies LP942$67K0.0%N/A0.003%
8/12/2026William Blair Investment Management LLC207,796$14.86M0.0%N/A0.586%
8/11/2026Caldwell Investment Management Ltd.17,500$1.25M0.8%N/A0.049%
8/11/2026Allworth Financial LP682$49K0.0%N/A0.002%
8/7/2026BlackRock Inc.4,486,535$320.88M0.0%N/A12.592%
Why The Biggest Names in AI Are Heading To The Arctic (Ad)

Google contracted over 12 GW of energy last year and just announced a 15 billion dollar AI infrastructure investment in Finland. Cerebras followed with plans for a 165 MW data center worth up to 1.7 billion euros. One small Nasdaq-listed company built its Nordic footprint before this wave hit, with up to 190 MW of capacity approaching ready-for-service status in 2027 to early 2028. Recent long-term data center deals have valued capacity at 1.7 to 2 million dollars per MW annually. See why this overlooked company could be next in the AI infrastructure spotlight.tc pixel

See why this overlooked company could be next in the spotlight
8/7/2026Deutsche Bank AG29,706$2.13M0.0%N/A0.083%
8/6/2026Bank of New York Mellon Corp204,912$14.66M0.0%N/A0.575%
8/6/2026State of Wyoming6,966$498K0.1%N/A0.020%
8/6/2026GSA Capital Partners LLP14,520$1.04M0.1%N/A0.041%
8/3/2026Summit Global Investments16,908$1.21M0.1%N/A0.047%
8/3/2026Walleye Capital LLC82,585$5.91M0.0%N/A0.232%
7/10/2026Redhawk Wealth Advisors Inc.35,281$2.52M0.2%-12.0%0.099%
7/9/2026World Equity Group Inc.9,801$701K0.2%N/A0.028%
5/19/2026Bank of America Corp DE137,218$7.47M0.0%+36.8%0.385%
5/19/2026Janus Henderson Group PLC195,337$10.63M0.0%+1,471.1%0.548%
5/18/2026California State Teachers Retirement System27,070$1.47M0.0%-0.7%0.076%
5/18/2026Royal Bank of Canada1,412$76K0.0%-31.8%0.004%
5/18/2026Empyrean Capital Partners LP1,308,190$71.19M2.3%-6.9%3.672%
5/16/2026The Manufacturers Life Insurance Company12,937$704K0.0%+6.0%0.036%
5/16/2026Quantinno Capital Management LP22,582$1.23M0.0%+18.2%0.063%
5/15/2026North Reef Capital Management LP220,239$11.99M0.4%-50.4%0.618%
5/15/2026Cannell & Spears LLC84,513$4.42M0.1%+42.8%0.237%
5/14/2026Healthcare of Ontario Pension Plan Trust Fund21,300$1.16M0.0%-63.1%0.060%
5/14/2026Renaissance Technologies LLC60,544$3.30M0.0%-38.4%0.170%
5/14/2026Morningstar Investment Management LLC6,188$337K0.0%N/A0.017%
5/14/2026Arrowstreet Capital Limited Partnership241,200$13.13M0.0%-53.1%0.677%
5/14/2026Sei Investments Co.26,930$1.47M0.0%+58.5%0.076%
5/14/2026Lido Advisors LLC11,904$648K0.0%+33.4%0.033%
5/14/2026Walleye Capital LLC19,590$1.07M0.0%N/A0.055%
5/14/2026State of Wyoming10,389$565K0.1%+12.0%0.029%
5/13/2026Cetera Investment Advisers4,433$241K0.0%N/A0.012%
5/13/2026First Citizens Bank & Trust Co.10,682$581K0.0%-4.1%0.030%
5/13/2026First Trust Advisors LP194,170$10.57M0.0%+14.7%0.545%
5/8/2026PNC Financial Services Group Inc.3,009$164K0.0%+12.5%0.008%
5/8/2026Summit Global Investments17,657$961K0.1%-17.2%0.050%
5/7/2026Dimensional Fund Advisors LP904,549$49.22M0.0%-0.5%2.539%
5/7/2026ANB Bank8,588$467K0.2%+5.0%0.024%
5/6/2026Jennison Associates LLC2,022,207$110.05M0.1%+5.9%5.676%
5/6/2026Allspring Global Investments Holdings LLC419,239$23.56M0.0%+13.9%1.177%
5/5/2026Kestrel Investment Management Corp62,381$3.40M2.0%-1.3%0.175%
5/5/2026Bank of New York Mellon Corp196,225$10.68M0.0%-3.0%0.551%
5/5/2026Illinois Municipal Retirement Fund14,319$779K0.0%+6.7%0.040%
5/5/2026Maryland State Retirement & Pension System3,810$207K0.0%N/A0.011%
5/4/2026Principal Financial Group Inc.204,527$11.13M0.0%+13.9%0.573%
4/30/2026Hsbc Holdings PLC12,236$659K0.0%-5.4%0.034%
4/27/2026New York State Teachers Retirement System9,939$541K0.0%-7.8%0.028%
4/27/2026Y Intercept Hong Kong Ltd22,931$1.25M0.0%+70.5%0.064%
4/25/2026Strs Ohio14,800$805K0.0%-5.7%0.041%
4/25/2026Boston Trust Walden Corp281,604$15.33M0.1%N/A0.788%
4/25/2026Keybank National Association OH11,838$644K0.0%-4.9%0.033%
4/21/2026Louisiana State Employees Retirement System11,700$637K0.0%N/A0.033%
4/20/2026Assenagon Asset Management S.A.45,836$2.49M0.0%N/A0.128%
4/16/2026SG Americas Securities LLC603,683$32.85M0.0%+67.9%1.690%
3/20/2026Hsbc Holdings PLC12,938$607K0.0%-51.1%0.036%
2/24/2026DGS Capital Management LLC29,386$1.38M0.2%+8.7%0.082%
Why The Biggest Names in AI Are Heading To The Arctic (Ad)

Google contracted over 12 GW of energy last year and just announced a 15 billion dollar AI infrastructure investment in Finland. Cerebras followed with plans for a 165 MW data center worth up to 1.7 billion euros. One small Nasdaq-listed company built its Nordic footprint before this wave hit, with up to 190 MW of capacity approaching ready-for-service status in 2027 to early 2028. Recent long-term data center deals have valued capacity at 1.7 to 2 million dollars per MW annually. See why this overlooked company could be next in the AI infrastructure spotlight.tc pixel

See why this overlooked company could be next in the spotlight
2/18/2026Summit Global Investments21,320$1.00M0.1%N/A0.060%
2/18/2026Vident Advisory LLC5,495$258K0.0%-21.5%0.015%
2/18/2026State of Tennessee Department of Treasury6,069$285K0.0%-73.9%0.017%
2/18/2026XTX Topco Ltd20,643$970K0.0%+3.6%0.058%
2/18/2026Zacks Investment Management38,749$1.82M0.0%-8.2%0.109%
2/18/2026VARCOV Co.6,401$301K0.1%N/A0.018%
2/18/2026Voloridge Investment Management LLC21,522$1.01M0.0%-73.0%0.060%
2/18/2026Tudor Investment Corp ET AL101,163$4.76M0.0%-55.2%0.283%
2/18/2026Susquehanna Fundamental Investments LLC14,508$682K0.0%+3.2%0.041%
2/18/2026Polymer Capital Management US LLC7,871$370K0.0%+6.2%0.022%


AAMI Institutional Ownership - Frequently Asked Questions

During the previous two years, 218 institutional investors and hedge funds held shares of Acadian Asset Management. The most heavily invested institutionals were Paulson & CO. Inc. ($417.91M), BlackRock Inc. ($320.88M), Jennison Associates LLC ($110.05M), Vanguard Group Inc. ($109.76M), Empyrean Capital Partners LP ($71.19M), State Street Corp ($56.69M), and Dimensional Fund Advisors LP ($49.22M).Learn more on Acadian Asset Management's institutional investors.

98.69% of Acadian Asset Management's stock is owned by institutional investors. Learn more on AAMI's institutional investor holdings.

Of the 194 institutional investors that purchased Acadian Asset Management's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Paulson & CO. Inc. ($14.79M), BlackRock Inc. ($4.49M), Jennison Associates LLC ($2.38M), Impax Asset Management Group plc ($1.08M), William Blair Investment Management LLC ($919.88K), Soros Fund Management LLC ($695.83K), and Geode Capital Management LLC ($656.63K).

Institutional investors have bought a total of 17,964,428 shares in the last 24 months. This purchase volume represents approximately $1.16B in transactions.

Of the 95 institutional investors that sold Acadian Asset Management's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: William Blair Investment Management LLC ($457.00K), North Reef Capital Management LP ($291.21K), Arrowstreet Capital Limited Partnership ($273.26K), Impax Asset Management Group plc ($234.52K), Empyrean Capital Partners LP ($232.92K), JPMorgan Chase & Co. ($198.07K), and Victory Capital Management Inc. ($177.20K).

Institutional investors have sold a total of 3,409,026 shares in the last 24 months. This volume of shares sold represents approximately $168.45M in transactions.


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Institutional ownership data for NYSE:AAMI is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/23/2026. New 13F filings are added each quarter as they're published.
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