Alto Neuroscience, Inc.
ANRO- Exchange
- NYSE
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001999480
In the last 90 days, Alto Neuroscience, Inc. insiders filed 0 open-market purchases and 1 sale; 114 institutions reported holding it in 13F filings for Q2 2026, worth $777.6M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Alto Neuroscience, Inc. as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 110
- +15 vs. Q4 2025
- Shares held
- 26.8M
- +3.71M (+16.0%) vs. Q4 2025
- Total value
- $602.5M
- +$190.9M (+46.4%) vs. Q4 2025
- New holders
- 25
- 27 more added
- Sold out
- 10
- 43 more reduced
2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ANRO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 114 | $777.6M |
| Q1 2026 | 110 | $602.5M |
| Q4 2025 | 97 | $435.9M |
| Q3 2025 | 77 | $67.4M |
| Q2 2025 | 80 | $38.1M |
| Q1 2025 | 83 | $45.0M |
| Q4 2024 | 77 | $95.3M |
| Q3 2024 | 75 | $265.5M |
| Q2 2024 | 58 | $198.8M |
| Q1 2024 | 53 | $245.2M |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Alto Neuroscience, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Tower Research Capital LLC (TRC) | 65 | $1.46K | 0.00% | −1,922−96.7% | Reduced |
| Royal Bank of Canada | 41 | $1.00K | 0.00% | +7+20.6% | Added |
| Signaturefd, LLC | 41 | $922 | 0.00% | −1,024−96.2% | Reduced |
| JPMorgan Chase & Co | 46 | $919 | 0.00% | −100−68.5% | Reduced |
| SHP Wealth Management | 25 | $562 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 12 | $270 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 11 | $258 | 0.00% | −20−64.5% | Reduced |
| SRS Capital Advisors, Inc. | 5 | $112 | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 4 | $90 | 0.00% | −16−80.0% | Reduced |
| Advisor Group Holdings, Inc. | 3 | $67 | 0.00% | +3 | New |
| Peapod Lane Capital LLC | 0 | $0 | 0.00% | −253,992−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −160,100−100.0% | Sold out |
| Artia Global Partners LP | 0 | $0 | 0.00% | −29,192−100.0% | Sold out |
| Citizens Financial Group Inc | 0 | $0 | 0.00% | −28,190−100.0% | Sold out |
| AlphaCore Capital LLC | 0 | $0 | 0.00% | −20,000−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −18,786−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −12,973−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −3,821−100.0% | Sold out |
| Fortitude Family Office, LLC | 0 | $0 | 0.00% | −511−100.0% | Sold out |
| North Star Investment Management Corp. | 0 | $0 | 0.00% | −174−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |