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, 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 |
|---|---|---|---|---|---|
| Advisor Group Holdings, Inc. | 3 | $67 | 0.00% | +3 | New |
| Optiver Holding B.V. | 4 | $90 | 0.00% | −16−80.0% | Reduced |
| SRS Capital Advisors, Inc. | 5 | $112 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 11 | $258 | 0.00% | −20−64.5% | Reduced |
| SBI Securities Co., Ltd. | 12 | $270 | 0.00% | 00.0% | Unchanged |
| SHP Wealth Management | 25 | $562 | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 46 | $919 | 0.00% | −100−68.5% | Reduced |
| Signaturefd, LLC | 41 | $922 | 0.00% | −1,024−96.2% | Reduced |
| Royal Bank of Canada | 41 | $1.00K | 0.00% | +7+20.6% | Added |
| Tower Research Capital LLC (TRC) | 65 | $1.46K | 0.00% | −1,922−96.7% | Reduced |
| Cornerstone Financial Management LLC | 69 | $1.55K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 102 | $2.29K | 0.00% | −52−33.8% | Reduced |
| US Bancorp | 110 | $2.47K | 0.00% | −3−2.7% | Reduced |
| Accent Capital Management, LLC | 275 | $6.18K | 0.00% | +275 | New |
| Russell Investments Group, Ltd. | 306 | $6.88K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 314 | $7.06K | 0.00% | −32,921−99.1% | Reduced |
| Nisa Investment Advisors, LLC | 338 | $7.60K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 400 | $8.99K | 0.00% | −1,013−71.7% | Reduced |
| Simplex Trading, LLC | 450 | $10.1K | 0.00% | +450 | New |
| Jones Financial Companies LLLP | 533 | $10.9K | 0.00% | +500+1,515.2% | Added |
| Torren Management, LLC | 558 | $12.5K | 0.01% | −2,926−84.0% | Reduced |
| EverSource Wealth Advisors, LLC | 628 | $14.1K | 0.00% | −33−5.0% | Reduced |
| Federated Hermes, Inc. | 654 | $14.7K | 0.00% | −116−15.1% | Reduced |
| Wells Fargo & Company | 790 | $17.8K | 0.00% | +25+3.3% | Added |
| Advisory Services Network, LLC | 802 | $18.0K | 0.00% | +802 | New |
| The PNC Financial Services Group, Inc. | 1,206 | $27.1K | 0.00% | −101−7.7% | Reduced |
| Rothschild Investment LLC | 1,685 | $37.9K | 0.00% | −1,200−41.6% | Reduced |
| Whittier Trust Co of Nevada Inc | 2,482 | $55.9K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 6,314 | $141.9K | 0.00% | −60−0.9% | Reduced |
| Citigroup Inc | 9,430 | $212.0K | 0.00% | −3,136−25.0% | Reduced |
| Omers Administration Corp | 9,700 | $218.1K | 0.00% | −2,700−21.8% | Reduced |
| Diametric Capital, LP | 10,315 | $231.9K | 0.06% | +10,315 | New |
| Vanguard Global Advisers, LLC | 10,649 | $239.4K | 0.00% | +10,649 | New |
| Bank of Montreal | 11,343 | $255.0K | 0.00% | −12−0.1% | Reduced |
| Catalyst Funds Management Pty Ltd | 11,400 | $256.3K | 0.04% | +11,400 | New |
| Clearstead Advisors, LLC | 13,312 | $299.3K | 0.00% | +13,312 | New |
| Ameriprise Financial Inc | 13,324 | $299.5K | 0.00% | −163−1.2% | Reduced |
| Toronto Dominion Bank | 13,434 | $302.0K | 0.00% | +13,434 | New |
| American Century Companies Inc | 14,186 | $318.9K | 0.00% | +3,826+36.9% | Added |
| JustInvest LLC | 15,646 | $351.7K | 0.00% | −839−5.1% | Reduced |
| Polen Capital Management LLC | 16,613 | $373.5K | 0.00% | +16,613 | New |
| SCS Capital Management LLC | 16,840 | $378.6K | 0.00% | −16,549−49.6% | Reduced |
| Charles Schwab Investment Management Inc | 17,018 | $382.6K | 0.00% | −46−0.3% | Reduced |
| Revisor Wealth Management LLC | 17,130 | $385.1K | 0.11% | +17,130 | New |
| UBS Group AG | 17,250 | $387.8K | 0.00% | −1,239−6.7% | Reduced |
| Landscape Capital Management, L.L.C. | 18,083 | $406.5K | 0.03% | +18,083 | New |
| University of Texas/Texas Am Investment Managment Co | 22,175 | $498.5K | 0.07% | 00.0% | Unchanged |
| Ieq Capital, LLC | 23,727 | $533.4K | 0.00% | −51,567−68.5% | Reduced |
| Manufacturers Life Insurance Company, The | 23,747 | $533.8K | 0.00% | +23,747 | New |
| Y-Intercept (Hong Kong) Ltd | 23,945 | $538.3K | 0.01% | +23,945 | New |
| Brown Advisory Inc | 25,000 | $562.0K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 25,036 | $562.8K | 0.00% | −5,356−17.6% | Reduced |
| Alps Advisors Inc | 25,288 | $568.5K | 0.00% | −217−0.9% | Reduced |
| Bank of America Corp | 25,677 | $577.2K | 0.00% | +14,585+131.5% | Added |
| Allianz Asset Management GmbH | 28,500 | $640.7K | 0.00% | −14,500−33.7% | Reduced |
| Squarepoint Ops LLC | 29,961 | $673.5K | 0.00% | +29,961 | New |
| Jane Street Group, LLC | 30,058 | $675.7K | 0.00% | −163,983−84.5% | Reduced |
| Balyasny Asset Management LLC | 32,111 | $721.9K | 0.00% | +20,991+188.8% | Added |
| Quantinno Capital Management LP | 36,069 | $810.8K | 0.00% | +490+1.4% | Added |
| Brevan Howard Capital Management LP | 38,782 | $871.8K | 0.01% | +38,782 | New |
| Dimensional Fund Advisors LP | 39,324 | $884.0K | 0.00% | +8,148+26.1% | Added |
| XTX Topco Ltd | 39,841 | $895.6K | 0.02% | +19,017+91.3% | Added |
| 683 Capital Management, LLC | 40,000 | $899.2K | 0.08% | −24,782−38.3% | Reduced |
| AdvisorShares Investments LLC | 41,023 | $922.2K | 0.17% | −3,054−6.9% | Reduced |
| Hudson Bay Capital Management LP | 43,762 | $983.8K | 0.01% | +8,973+25.8% | Added |
| TD Asset Management Inc | 43,800 | $984.6K | 0.00% | +43,800 | New |
| D. E. Shaw & Co., Inc. | 45,343 | $1.02M | 0.00% | −79,452−63.7% | Reduced |
| Bridgeway Capital Management, LLC | 52,653 | $1.18M | 0.02% | −25,000−32.2% | Reduced |
| Wellington Management Group LLP | 59,799 | $1.34M | 0.00% | −9,217−13.4% | Reduced |
| Acadian Asset Management LLC | 60,076 | $1.35M | 0.00% | +2,530+4.4% | Added |
| Morgan Stanley | 68,654 | $1.54M | 0.00% | +3,073+4.7% | Added |
| Almitas Capital LLC | 78,520 | $1.77M | 0.40% | 00.0% | Unchanged |
| Stifel Financial Corp | 86,335 | $1.94M | 0.00% | −829−1.0% | Reduced |
| Saturn V Capital Management LLC | 88,999 | $2.00M | 0.36% | +88,999 | New |
| Renaissance Technologies LLC | 103,499 | $2.33M | 0.00% | +6,100+6.3% | Added |
| Goldman Sachs Group Inc | 104,717 | $2.35M | 0.00% | −51,602−33.0% | Reduced |
| Eversept Partners, LP | 125,168 | $2.81M | 0.19% | +125,168 | New |
| Boothbay Fund Management, LLC | 139,304 | $3.13M | 0.07% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 165,272 | $3.72M | 0.00% | +165,272 | New |
| OrbiMed Advisors LLC | 167,500 | $3.77M | 0.09% | +42,500+34.0% | Added |
| AWM Investment Company, Inc. | 170,000 | $3.82M | 0.42% | −55,000−24.4% | Reduced |
| Marshall Wace, LLP | 176,347 | $3.96M | 0.00% | −16,762−8.7% | Reduced |
| State Street Corp | 199,503 | $4.48M | 0.00% | +68,838+52.7% | Added |
| Qube Research & Technologies Ltd | 209,268 | $4.70M | 0.01% | +96,476+85.5% | Added |
| Two Sigma Investments, LP | 216,099 | $4.86M | 0.00% | +75,782+54.0% | Added |
| Alkeon Capital Management LLC | 227,101 | $5.11M | 0.02% | −250,000−52.4% | Reduced |
| Susquehanna International Group, LLP | 238,498 | $5.36M | 0.01% | +120,342+101.9% | Added |
| Geode Capital Management, LLC | 292,899 | $6.59M | 0.00% | +5,464+1.9% | Added |
| Price T Rowe Associates Inc | 371,208 | $8.35M | 0.00% | +340,980+1,128.0% | Added |
| Adage Capital Partners GP, L.L.C. | 385,000 | $8.65M | 0.01% | +385,000 | New |
| Jennison Associates LLC | 386,426 | $8.69M | 0.01% | +386,426 | New |
| Northern Trust Corp | 473,403 | $10.6M | 0.00% | −970−0.2% | Reduced |
| Driehaus Capital Management LLC | 486,726 | $10.9M | 0.08% | +149,964+44.5% | Added |
| Integral Health Asset Management, LLC | 500,000 | $11.2M | 0.59% | +125,000+33.3% | Added |
| VR Adviser, LLC | 500,000 | $11.2M | 0.42% | +500,000 | New |
| Affinity Asset Advisors, LLC | 500,000 | $11.2M | 0.66% | +500,000 | New |
| Point72 Asset Management, L.P. | 503,087 | $11.3M | 0.02% | −1,103,867−68.7% | Reduced |
| Ikarian Capital, LLC | 515,000 | $11.6M | 1.66% | 00.0% | Unchanged |
| BlackRock, Inc. | 666,188 | $15.0M | 0.00% | +58,314+9.6% | Added |
| 72 Investment Holdings, LLC | 667,778 | $15.0M | 30.26% | 00.0% | Unchanged |