Alto NeuroscienceANRO

13F holders, Q4 2025 (December 31)
97holders +20
26new positions
9sold out
5famous investors
$17.80avg. 13F price*

At the end of Q4 2025, 97 institutions reported holding Alto Neuroscience Inc. (ANRO) in their 13F filings, up 20 from Q3 2025. 26 opened new positions and 9 sold out. The largest holders were Alpha Wave Global, LP ($66.0M), Vestal Point Capital, LP ($44.2M) and Commodore Capital LP ($32.5M). 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 Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions26$68.0M
Exits9$348K

All 13F filers, Q3 2025 → Q4 2025: 9,097,524 shares bought and 1,510,524 shares sold, net +7,587,000 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 97 holders

Alpha Wave Global, LP 8.09% No change 3,707,757 $66.0M
Vestal Point Capital, LP 1.62% Add +161.6% 2,485,000 $44.2M
Commodore Capital LP 2.16% New 1,823,196 $32.5M
Perceptive Advisors LLC 0.58% Add +1048.5% 1,784,393 $31.8M
Point72 Asset Management 0.05% Add +20.6% 1,606,954 $28.6M
Armistice Capital, LLC 0.67% Reduce -6.1% 1,536,000 $27.3M
Vanguard Group Inc. 0.00% Add +23.6% 1,365,847 $24.3M
Franklin Resources Inc. 0.01% Reduce -3.7% 1,119,578 $19.9M
Vivo Capital, LLC 1.19% New 1,035,551 $18.4M
72 Investment Holdings, LLC 23.50% No change 667,778 $11.9M
Millennium Management 0.01% Add +99.5% 629,985 $11.2M
BlackRock, Inc. 0.00% Add +65.2% 607,874 $10.8M
Ikarian Capital, LLC 1.19% Add +368.2% 515,000 $9.2M
Alkeon Capital Management LLC 0.04% No change 477,101 $8.5M
Northern Trust Corp. 0.00% Add +2.8% 474,373 $8.4M
Integral Health Asset Management, LLC 0.34% Reduce -6.3% 375,000 $6.7M
Driehaus Capital Management LLC 0.04% New 336,762 $6.0M
Geode Capital Management, LLC 0.00% Add +20.8% 287,435 $5.1M
Peapod Lane Capital LLC 3.85% Reduce -9.9% 253,992 $4.5M
AWM Investment Company, Inc. 0.39% Reduce -19.8% 225,000 $4.0M
Spruce Street Capital LP 1.31% — 222,844 $4.0M
Jane Street Group, LLC 0.00% Add +301.2% 194,041 $3.5M
Marshall Wace, LLP 0.00% Reduce -76.6% 193,109 $3.4M
Two Sigma Advisers, LP 0.01% Add +6.8% 160,100 $2.8M
Goldman Sachs Group Inc. 0.00% Add +73.2% 156,319 $2.8M
Two Sigma Investments, LP 0.00% Add +20.4% 140,317 $2.5M
Boothbay Fund Management, LLC 0.07% Add +329.0% 139,304 $2.5M
State Street Corp. 0.00% Add +26.6% 130,665 $2.3M
Orbimed Advisors LLC 0.05% Reduce -50.0% 125,000 $2.2M
D. E. Shaw & Co. 0.00% New 124,795 $2.2M
Susquehanna International Group, LLP 0.00% Reduce -24.1% 118,156 $2.1M
Qube Research & Technologies Ltd 0.00% New 112,792 $2.0M
Renaissance Technologies 0.00% Add +28.5% 97,399 $1.7M
Stifel Financial Corp. 0.00% Reduce -28.6% 87,164 $1.6M
Almitas Capital LLC 0.31% Reduce -59.8% 78,520 $1.4M
Bridgeway Capital Management, LLC 0.03% No change 77,653 $1.4M
Ieq Capital, LLC 0.00% Add +19.6% 75,294 $1.3M
Wellington Management Group LLP 0.00% New 69,016 $1.2M
Morgan Stanley 0.00% Add +7.5% 65,581 $1.2M
683 Capital Management, LLC 0.10% New 64,782 $1.2M
Acadian Asset Management LLC 0.00% Add +296.2% 57,546 $1.0M
AdvisorShares Investments LLC 0.13% New 44,077 $785K
Allianz Asset Management GmbH 0.00% Add +16.2% 43,000 $765K
Quantinno Capital Management LP 0.00% No change 35,579 $633K
Hudson Bay Capital Management LP 0.00% New 34,789 $619K
SCS Capital Management LLC 0.01% Reduce -50.0% 33,389 $594K
BNP Paribas Financial Markets 0.00% Add +6365.9% 33,235 $592K
Dimensional Fund Advisors LP 0.00% New 31,176 $555K
Barclays PLC 0.00% Add +72261.9% 30,392 $541K
T. Rowe Price Associates Inc. 0.00% Reduce -49.1% 30,228 $539K
Artia Global Partners LP 0.08% New 29,192 $520K
Citizens Financial Group Inc. 0.01% Reduce -29.5% 28,190 $502K
Alps Advisors Inc. 0.00% New 25,505 $454K
Brown Advisory Inc. 0.00% No change 25,000 $445K
University of Texas/Texas Am Investment Management Co. 0.06% No change 22,175 $395K
XTX Topco Ltd 0.01% Add +32.3% 20,824 $371K
AlphaCore Capital LLC 0.01% Add +100.0% 20,000 $356K
ExodusPoint Capital Management, LP 0.00% New 18,786 $334K
UBS Group AG 0.00% Reduce -86.7% 18,489 $329K
Charles Schwab Investment Management Inc. 0.00% New 17,064 $304K
Vanguard Personalized Indexing Management, LLC 0.00% Reduce -3.3% 16,485 $293K
Ameriprise Financial Inc. 0.00% No change 13,487 $240K
Citadel Advisors 0.00% Reduce -65.1% 12,973 $231K
Citigroup Inc. 0.00% New 12,566 $224K
OMERS ADMINISTRATION Corp 0.00% New 12,400 $221K
Bank of Montreal 0.00% Add +0.1% 11,355 $202K
Balyasny Asset Management L.P. 0.00% New 11,120 $198K
Bank of America Corp. 0.00% Add +8845.2% 11,092 $197K
American Century Companies Inc. 0.00% New 10,360 $184K
FMR LLC 0.00% Reduce -17.0% 6,374 $113K
AlphaQuest LLC 0.00% New 3,821 $68K
Torren Management, LLC 0.03% — 3,484 $62K
Rothschild Investment LLC 0.00% No change 2,885 $51K
Whittier Trust Co. of Nevada Inc. 0.00% No change 2,482 $37K
Tower Research Capital LLC (TRC) 0.00% Reduce -16.9% 1,987 $35K
Group One Trading LLC 0.00% Reduce -46.8% 1,413 $25K
PNC Financial Services Group, Inc. 0.00% Reduce -10.8% 1,307 $23K
Signaturefd, LLC 0.00% New 1,065 $19K
Federated Hermes, Inc. 0.00% Reduce -77.0% 770 $14K
Wells Fargo & Company 0.00% New 765 $14K
EverSource Wealth Advisors, LLC 0.00% Reduce -8.8% 661 $12K
Fortitude Family Office, LLC 0.00% No change 511 $9K
Nisa Investment Advisors, LLC 0.00% No change 338 $6K
Russell Investments Group, Ltd. 0.00% No change 306 $5K
North Star Investment Management Corp. 0.00% No change 174 $3K
Cwm, LLC 0.00% Reduce -83.3% 154 $3K
Global Retirement Partners, LLC 0.00% New 150 $3K
JPMorgan Chase & Co. 0.00% New 146 $3K
US Bancorp \de 0.00% New 113 $2K
Cornerstone Financial Management LLC 0.00% — 69 $1K
Royal Bank of Canada 0.00% Reduce -82.6% 34 $1K
Jones Financial Companies LLLP 0.00% New 33 $587
Farther Finance Advisors, LLC 0.00% New 31 $552
SHP Wealth Management 0.00% — 25 $445
Optiver Holding B.V. 0.00% No change 20 $356
SBI Securities Co., Ltd. 0.00% Add +300.0% 12 $214
Arax Advisory Partners 0.00% Reduce -88.1% 5 $89

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