Alto NeuroscienceANRO

13F holders, Q3 2025 (September 30)
77holders −3
9new positions
12sold out
5famous investors
$4.02avg. 13F price*

At the end of Q3 2025, 77 institutions reported holding Alto Neuroscience Inc. (ANRO) in their 13F filings, down 3 from Q2 2025. 9 opened new positions and 12 sold out. The largest holders were Alpha Wave Global, LP ($14.9M), Armistice Capital, LLC ($6.6M) and Point72 Asset Management ($5.4M). 5 famous investors held it, including Steve Cohen (0.0% of Point72 Asset Management's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
Alto Neuroscience Inc.
CUSIP
02157Q109
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150 Q1 2024: 52Q1 2024Q2 2024: 58Q2 2024Q3 2024: 75Q3 2024Q4 2024: 77Q4 2024Q1 2025: 83Q1 2025Q2 2025: 80Q2 2025Q3 2025: 77Q3 2025Q4 2025: 97Q4 2025Q1 2026: 110Q1 2026Q2 2026: 114Q2 2026

Total Exit/New Position Q2 2025 → Q3 2025

InstitutionsTotal Value
New Positions9$847K
Exits12$538K

All 13F filers, Q2 2025 → Q3 2025: 582,332 shares bought and 1,120,969 shares sold, net −538,637 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 77 holders

Alpha Wave Global, LP 1.51% No change 3,707,757 $14.9M
Armistice Capital, LLC 0.21% Add +0.7% 1,636,000 $6.6M
Point72 Asset Management 0.01% Add +0.2% 1,332,437 $5.4M
Franklin Resources Inc. 0.00% No change 1,162,608 $4.7M
Vanguard Group Inc. 0.00% Add +1.9% 1,105,407 $4.4M
Vestal Point Capital, LP 0.17% No change 950,000 $3.8M
Marshall Wace, LLP 0.00% Reduce -12.0% 825,225 $3.3M
72 Investment Holdings, LLC 3.95% No change 667,778 $2.7M
Alkeon Capital Management LLC 0.01% No change 477,101 $1.9M
Northern Trust Corp. 0.00% Reduce -0.4% 461,285 $1.9M
Integral Health Asset Management, LLC 0.12% No change 400,000 $1.6M
BlackRock, Inc. 0.00% Reduce -34.5% 367,879 $1.5M
Millennium Management 0.00% Add +4.3% 315,758 $1.3M
Peapod Lane Capital LLC 1.02% Add +1.1% 281,963 $1.1M
AWM Investment Company, Inc. 0.11% No change 280,483 $1.1M
Orbimed Advisors LLC 0.02% No change 250,000 $1.0M
Geode Capital Management, LLC 0.00% Add +3.6% 237,900 $957K
Almitas Capital LLC 0.18% No change 195,145 $784K
Susquehanna International Group, LLP 0.00% Add +154.9% 155,676 $626K
Perceptive Advisors LLC 0.02% New 155,366 $625K
Two Sigma Advisers, LP 0.00% Add +82.4% 149,900 $603K
UBS Group AG 0.00% Reduce -67.5% 139,031 $559K
Stifel Financial Corp. 0.00% Reduce -3.8% 122,000 $490K
Two Sigma Investments, LP 0.00% Add +160.6% 116,579 $469K
Ikarian Capital, LLC 0.09% No change 110,000 $442K
State Street Corp. 0.00% Reduce -1.5% 103,185 $415K
Goldman Sachs Group Inc. 0.00% Reduce -45.7% 90,251 $363K
Laird Norton Wetherby Wealth Management, LLC 0.01% No change 84,162 $338K
Bridgeway Capital Management, LLC 0.01% Add +43.5% 77,653 $312K
Renaissance Technologies 0.00% Add +118.4% 75,772 $305K
SCS Capital Management LLC 0.00% No change 66,777 $268K
Ieq Capital, LLC 0.00% Reduce -3.4% 62,979 $253K
Morgan Stanley 0.00% Reduce -5.6% 61,036 $245K
T. Rowe Price Associates Inc. 0.00% No change 59,428 $239K
Jane Street Group, LLC 0.00% Reduce -55.6% 48,366 $194K
Citizens Financial Group Inc. 0.00% Add +19.0% 40,000 $161K
Citadel Advisors 0.00% New 37,152 $149K
Allianz Asset Management GmbH 0.00% No change 37,000 $149K
Quantinno Capital Management LP 0.00% No change 35,579 $143K
Boothbay Fund Management, LLC 0.00% No change 32,472 $131K
AQR Capital Management 0.00% Reduce -60.3% 30,412 $122K
Brown Advisory Inc. 0.00% No change 25,000 $101K
Squarepoint Ops LLC 0.00% Reduce -66.4% 22,816 $92K
University of Texas/Texas Am Investment Management Co. 0.01% No change 22,175 $89K
Bowie Capital Management, LLC 0.00% No change 19,484 $78K
Vanguard Personalized Indexing Management, LLC 0.00% Add +13.7% 17,045 $69K
XTX Topco Ltd 0.00% New 15,746 $63K
Acadian Asset Management LLC 0.00% Reduce -45.1% 14,523 $58K
Ameriprise Financial Inc. 0.00% Reduce -0.7% 13,487 $54K
Prelude Capital Management, LLC 0.00% No change 11,401 $46K
Bank of Montreal 0.00% No change 11,342 $46K
AlphaCore Capital LLC 0.00% Reduce -50.0% 10,000 $40K
FMR LLC 0.00% Reduce -7.5% 7,676 $31K
Whittier Trust Co. of Nevada Inc. 0.00% No change 2,482 $17K
Federated Hermes, Inc. 0.00% Add +337.5% 3,347 $13K
Rothschild Investment LLC 0.00% No change 2,885 $12K
Group One Trading LLC 0.00% Add +222.2% 2,658 $11K
Tower Research Capital LLC (TRC) 0.00% Reduce -8.7% 2,390 $10K
PNC Financial Services Group, Inc. 0.00% Reduce -16.9% 1,466 $6K
Northwestern Mutual Wealth Management Co. 0.00% New 1,450 $6K
Cwm, LLC 0.00% Reduce -75.5% 924 $4K
Advisory Services Network, LLC 0.00% New 802 $3K
EverSource Wealth Advisors, LLC 0.00% Add +16.2% 725 $3K
BNP Paribas Financial Markets 0.00% Reduce -36.1% 514 $2K
Fortitude Family Office, LLC 0.00% Add +75.0% 511 $2K
Nisa Investment Advisors, LLC 0.00% Reduce -18.8% 338 $1K
Russell Investments Group, Ltd. 0.00% No change 306 $1K
Royal Bank of Canada 0.00% Reduce -98.4% 195 $1K
North Star Investment Management Corp. 0.00% New 174 $699
True Wealth Design, LLC 0.00% Reduce -39.1% 126 $507
Bank of America Corp. 0.00% Reduce -86.9% 124 $498
Osaic Holdings, Inc. 0.00% Reduce -4.1% 47 $189
Barclays PLC 0.00% Add +4100.0% 42 $169
Arax Advisory Partners 0.00% New 42 $169
Optiver Holding B.V. 0.00% New 20 $80
SBI Securities Co., Ltd. 0.00% Reduce -93.5% 3 $12
Cloud Capital Management, LLC 0.00% New 8 $0

"% of holder's portfolio" is ANRO's weight in each manager's 13F, not the share of Alto Neuroscience Inc. the manager owns.