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Alto Neuroscience (ANRO) Institutional Ownership

Alto Neuroscience logo
$28.61 +0.14 (+0.49%)
Closing price 08/7/2026 03:59 PM Eastern
Extended Trading
$27.98 -0.63 (-2.20%)
As of 08/7/2026 07:34 PM 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 Alto Neuroscience (NYSE:ANRO)

Number of
Institutional Buyers
(last 12 months)
50
Total
Institutional Inflows
(last 12 months)
$223.76M
Number of
Institutional Sellers
(last 12 months)
18
Total
Institutional Outflows
(last 12 months)
$24.94M
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ANRO Institutional Buying and Selling by Quarter

Alto Neuroscience Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/6/2026 Bank of New York Mellon Corp76,330$2.01M0.0%N/A0.218%
7/7/2026 GK Wealth Management LLC8,565$226K0.1%N/A0.024%
5/29/2026Perceptive Advisors LLC2,009,893$45.18M0.9%+12.6%5.728%
5/19/2026Bank of America Corp DE25,677$577K0.0%+131.5%0.073%
5/18/2026Eversept Partners LP125,168$2.81M0.1%N/A0.357%
5/16/2026The Manufacturers Life Insurance Company 23,747$534K0.0%N/A0.068%
5/16/2026Quantinno Capital Management LP36,069$811K0.0%+1.4%0.103%
5/16/2026Orbimed Advisors LLC167,500$3.77M0.1%+34.0%0.477%
5/15/2026Commodore Capital LP2,723,196$61.22M3.5%+49.4%7.761%
5/15/2026OMERS ADMINISTRATION Corp9,700$218K0.0%-21.8%0.030%
5/15/2026Affinity Asset Advisors LLC500,000$11.24M0.6%N/A1.565%
5/15/2026Spruce Street Capital LP1,325,210$29.12M7.0%+494.7%4.148%
5/14/2026Renaissance Technologies LLC103,499$2.33M0.0%+6.3%0.324%
5/7/2026Dimensional Fund Advisors LP39,324$884K0.0%+26.1%0.123%
5/6/2026 Jennison Associates LLC386,426$8.69M0.0%N/A1.209%
4/28/2026AdvisorShares Investments LLC41,023$922K0.2%-6.9%0.128%
4/28/2026 Revisor Wealth Management LLC17,130$385K0.1%N/A0.054%
4/27/2026 Y Intercept Hong Kong Ltd23,945$538K0.0%N/A0.075%
2/18/2026XTX Topco Ltd20,824$371K0.0%+32.2%0.067%
2/18/2026Ikarian Capital LLC515,000$9.17M0.7%+368.2%1.658%
2/18/2026Vestal Point Capital LP2,485,000$44.23M1.5%+161.6%7.999%
2/18/2026Wellington Management Group LLP69,016$1.23M0.0%N/A0.222%
2/18/2026Orbimed Advisors LLC125,000$2.23M0.0%-50.0%0.402%
2/18/2026Perceptive Advisors LLC1,784,393$31.76M0.6%+1,048.5%5.744%
2/18/2026Millennium Management LLC629,985$11.21M0.0%+99.5%2.028%
2/18/2026Commodore Capital LP1,823,196$32.45M2.2%N/A5.869%
2/18/2026Artia Global Partners LP29,192$520K0.1%N/A0.094%
2/18/2026Balyasny Asset Management L.P.11,120$198K0.0%N/A0.036%
2/18/2026Boothbay Fund Management LLC139,304$2.48M0.0%+329.0%0.448%
2/18/2026Armistice Capital LLC1,536,000$27.34M0.3%-6.1%4.944%
2/18/2026683 Capital Management LLC64,782$1.15M0.1%N/A0.209%
2/17/2026Almitas Capital LLC78,520$1.40M0.3%-59.8%0.253%
2/17/2026Price T Rowe Associates Inc. MD30,228$539K0.0%-49.1%0.097%
2/17/2026Integral Health Asset Management LLC375,000$6.68M0.3%-6.3%1.207%
2/17/2026ExodusPoint Capital Management LP18,786$334K0.0%N/A0.060%
2/16/2026OMERS ADMINISTRATION Corp12,400$221K0.0%N/A0.040%
2/16/2026Spruce Street Capital LP222,844$3.97M1.3%N/A0.717%
2/16/2026Barclays PLC30,392$541K0.0%+72,261.9%0.098%
2/13/2026Marshall Wace LLP193,109$3.44M0.0%-76.6%0.622%
2/13/2026Stifel Financial Corp87,164$1.55M0.0%-28.6%0.281%
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2/13/2026AWM Investment Company Inc.225,000$4.01M0.4%-19.8%0.724%
2/13/2026Hudson Bay Capital Management LP34,789$619K0.0%N/A0.112%
2/13/2026Vivo Capital LLC1,035,551$18.43M1.2%N/A3.333%
2/13/2026Charles Schwab Investment Management Inc.17,064$304K0.0%N/A0.055%
2/13/2026 State Street Corp130,665$2.33M0.0%+26.6%0.421%
2/13/2026Ieq Capital LLC75,294$1.34M0.0%+19.6%0.242%
2/12/2026Renaissance Technologies LLC97,399$1.73M0.0%+28.5%0.313%
2/12/2026Dimensional Fund Advisors LP31,176$555K0.0%N/A0.100%
2/12/2026 Alps Advisors Inc.25,505$454K0.0%N/A0.082%
2/11/2026Franklin Resources Inc.1,119,578$19.93M0.0%-3.7%3.603%
2/10/2026Goldman Sachs Group Inc.156,319$2.78M0.0%+73.2%0.503%
2/10/2026 SCS Capital Management LLC33,389$594K0.0%-50.0%0.107%
2/10/2026AdvisorShares Investments LLC44,077$785K0.1%N/A0.142%
2/10/2026Northwestern Mutual Wealth Management Co.212,672$3.79M0.0%+14,567.0%0.684%
2/9/2026Geode Capital Management LLC287,435$5.12M0.0%+20.8%0.925%
2/5/2026 AlphaCore Capital LLC20,000$356K0.0%+100.0%0.064%
2/5/2026Northwestern Mutual Wealth Management Co.212,672$3.79M0.0%+14,567.0%0.684%
1/30/2026 Citizens Financial Group Inc. RI28,190$502K0.0%-29.5%0.091%
1/30/2026 Torren Management LLC3,484$62K0.0%N/A0.011%
1/28/2026 Peapod Lane Capital LLC253,992$4.52M3.8%-9.9%0.817%
11/17/2025Armistice Capital LLC1,636,000$6.58M0.1%+0.7%5.266%
11/17/2025Susquehanna International Group LLP155,676$626K0.0%+154.9%0.501%
11/17/2025Millennium Management LLC315,758$1.27M0.0%+4.3%1.016%
11/14/2025Two Sigma Investments LP116,579$469K0.0%+160.6%0.430%
11/14/2025Bridgeway Capital Management LLC77,653$312K0.0%+43.5%0.287%
11/14/2025Squarepoint Ops LLC22,816$92K0.0%-66.4%0.084%
11/13/2025UBS Group AG139,031$559K0.0%-67.5%0.513%
11/12/2025 AlphaCore Capital LLC10,000$40K0.0%-50.0%0.037%
11/10/2025 Peapod Lane Capital LLC281,963$1.14M1.0%+1.1%1.041%
11/7/2025Vanguard Group Inc.1,105,407$4.44M0.0%+1.9%4.082%
10/31/2025Vanguard Personalized Indexing Management LLC17,045$69K0.0%+13.7%0.063%
10/24/2025 Citizens Financial Group Inc. RI40,000$161K0.0%+19.0%0.148%
8/15/2025Boothbay Fund Management LLC32,472$71K0.0%-42.2%0.120%
8/15/2025Bridgeway Capital Management LLC54,100$119K0.0%+85.9%0.200%
8/15/2025AWM Investment Company Inc.280,483$617K0.1%-68.9%1.036%
8/14/2025Jane Street Group LLC109,020$240K0.0%N/A0.403%
8/14/2025Armistice Capital LLC1,624,000$3.57M0.1%+1.5%5.999%
8/13/2025Marshall Wace LLP937,407$2.06M0.0%+9.9%3.463%
8/12/2025 AlphaCore Capital LLC20,000$44K0.0%+100.0%0.074%
8/8/2025 Citizens Financial Group Inc. RI33,606$74K0.0%-13.0%0.124%
8/8/2025Geode Capital Management LLC229,721$506K0.0%-52.8%0.849%
8/5/2025Bank of Montreal Can11,342$25K0.0%N/A0.042%
8/1/2025 Y Intercept Hong Kong Ltd38,597$85K0.0%N/A0.143%
7/31/2025 Peapod Lane Capital LLC278,857$613K0.6%N/A1.030%
7/31/2025 Ground Swell Capital LLC12,447$27K0.0%N/A0.046%
7/25/2025Vanguard Personalized Indexing Management LLC14,990$33K0.0%N/A0.055%
6/27/2025Goldman Sachs Group Inc.100,374$217K0.0%-9.8%0.371%
5/19/2025SCS Capital Management LLC66,777$144K0.0%N/A0.247%
5/16/2025Woodline Partners LP359,873$777K0.0%-42.1%1.329%
5/16/2025Goldman Sachs Group Inc.100,374$217K0.0%-9.8%0.371%
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5/16/2025AQR Capital Management LLC24,099$52K0.0%N/A0.089%
5/16/2025AWM Investment Company Inc.901,984$1.95M0.3%+31.1%3.332%
5/16/2025Almitas Capital LLC234,386$506K0.2%-12.2%0.866%
5/15/2025Armistice Capital LLC1,600,000$3.46M0.1%+146.2%5.910%
5/12/2025Nuveen LLC139,953$302K0.0%N/A0.517%
5/12/2025Invesco Ltd.31,031$67K0.0%N/A0.115%
5/9/2025Citizens Financial Group Inc. RI38,606$83K0.0%N/A0.143%
5/5/2025Allianz Asset Management GmbH37,000$80K0.0%-40.4%0.137%
3/24/2025Wellington Management Group LLP77,146$326K0.0%+27.2%0.286%
2/18/2025AWM Investment Company Inc.687,831$2.91M0.4%+22.9%2.550%


ANRO Institutional Ownership - Frequently Asked Questions

During the previous two years, 87 institutional investors and hedge funds held shares of Alto Neuroscience. The most heavily invested institutionals were Commodore Capital LP ($61.22M), Perceptive Advisors LLC ($45.18M), Vestal Point Capital LP ($44.23M), Spruce Street Capital LP ($29.12M), Armistice Capital LLC ($27.34M), FMR LLC ($27.03M), and RA Capital Management L.P. ($23.74M).Learn more on Alto Neuroscience's institutional investors.

Of the 79 institutional investors that purchased Alto Neuroscience's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Commodore Capital LP ($2.72M), Perceptive Advisors LLC ($1.85M), Vestal Point Capital LP ($1.83M), Spruce Street Capital LP ($1.33M), Vivo Capital LLC ($1.04M), Armistice Capital LLC ($986K), and Marshall Wace LLP ($921.79K).

Institutional investors have bought a total of 12,038,565 shares in the last 24 months. This purchase volume represents approximately $223.76M in transactions.

Of the 18 institutional investors that sold Alto Neuroscience's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: AWM Investment Company Inc. ($676.98K), Marshall Wace LLP ($632.12K), UBS Group AG ($289.19K), Orbimed Advisors LLC ($125K), Almitas Capital LLC ($116.63K), Armistice Capital LLC ($100K), and Squarepoint Ops LLC ($45.13K).

Institutional investors have sold a total of 2,229,691 shares in the last 24 months. This volume of shares sold represents approximately $24.94M in transactions.


Related Companies

Institutional ownership data for NYSE:ANRO is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/6/2026. New 13F filings are added each quarter as they're published.
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