Alto Neuroscience, Inc.
ANRO- Exchange
- NYSE
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001999480
No open-market purchases or sales by Alto Neuroscience, Inc. insiders were filed in the last 90 days; 114 institutions reported holding it in 13F filings for Q2 2026, worth $777.6M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Alto Neuroscience, Inc. as of Jun 30, 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
- 114
- +5 vs. Q1 2026
- Shares held
- 29.5M
- +2.64M (+9.8%) vs. Q1 2026
- Total value
- $777.6M
- +$175.2M (+29.1%) vs. Q1 2026
- New holders
- 27
- 39 more added
- Sold out
- 22
- 28 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Alto Neuroscience, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Accent Capital Management, LLC | 366 | $9.66K | 0.00% | +91+33.1% | Added |
| California State Teachers Retirement System | 361 | $9.53K | 0.00% | +361 | New |
| Nisa Investment Advisors, LLC | 338 | $8.92K | 0.00% | 00.0% | Unchanged |
| Aster Capital Management (DIFC) Ltd | 135 | $3.56K | 0.00% | +135 | New |
| Optiver Holding B.V. | 112 | $2.96K | 0.00% | +108+2,700.0% | Added |
| Federated Hermes, Inc. | 110 | $2.90K | 0.00% | −544−83.2% | Reduced |
| Sterling Capital Management LLC | 92 | $2.43K | 0.00% | +92 | New |
| Cornerstone Financial Management LLC | 69 | $1.82K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 39 | $1.03K | 0.00% | −71−64.5% | Reduced |
| SBI Securities Co., Ltd. | 12 | $317 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 11 | $290 | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 8 | $211 | 0.00% | +8 | New |
| SRS Capital Advisors, Inc. | 5 | $132 | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 3 | $79 | 0.00% | 00.0% | Unchanged |
| Jennison Associates LLC | 0 | $0 | 0.00% | −386,426−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −209,268−100.0% | Sold out |
| Almitas Capital LLC | 0 | $0 | 0.00% | −78,520−100.0% | Sold out |
| D. E. Shaw & Co., Inc. | 0 | $0 | 0.00% | −45,343−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −43,762−100.0% | Sold out |
| 683 Capital Management, LLC | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −38,782−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −32,111−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −30,058−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −23,945−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −18,083−100.0% | Sold out |
| Polen Capital Management LLC | 0 | $0 | 0.00% | −16,613−100.0% | Sold out |
| Toronto Dominion Bank | 0 | $0 | 0.00% | −13,434−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −13,312−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −11,400−100.0% | Sold out |
| Diametric Capital, LP | 0 | $0 | 0.00% | −10,315−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −9,700−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −802−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −450−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −400−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −41−100.0% | Sold out |
| SHP Wealth Management | 0 | $0 | 0.00% | −25−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |