Alto Neuroscience, Inc. - ANRO
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 2 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Alpha Wave Global, LP | History | No change | 3,707,757 | 65,998 | 8.09% | 1.51% | 1 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Vestal Point Capital, LP | History | Added to | 2,485,000 | 44,233 | 1.5% | 0.17% | 2 | +1,535,000 | 161.58% | Q4 2025 | Feb 17, 2026 |
| Commodore Capital LP | History | New | 1,823,196 | 32,452 | 2.16% | — | 3 | +1,823,196 | New | Q4 2025 | Feb 17, 2026 |
| PERCEPTIVE ADVISORS LLC | History | Added to | 1,784,393 | 31,762 | 0.57% | 0.02% | 4 | +1,629,027 | 1048.51% | Q4 2025 | Feb 17, 2026 |
| Point72 Asset Management, L.P. | History | Added to | 1,606,954 | 28,603 | 0.03% | 0.01% | 5 | +274,517 | 20.6% | Q4 2025 | Feb 17, 2026 |
| ARMISTICE CAPITAL, LLC | History | Reduced | 1,536,000 | 27,340 | 0.33% | 0.1% | 6 | -100,000 | -6.11% | Q4 2025 | Feb 17, 2026 |
| VANGUARD GROUP INC | History | Added to | 1,365,847 | 24,312 | 0.0% | 0.0% | 7 | +260,440 | 23.56% | Q4 2025 | Jan 29, 2026 |
| FRANKLIN RESOURCES INC | History | Reduced | 1,119,578 | 19,928 | 0.0% | 0.0% | 8 | -43,030 | -3.7% | Q4 2025 | Feb 11, 2026 |
| Vivo Capital, LLC | History | New | 1,035,551 | 18,432 | 1.19% | — | 9 | +1,035,551 | New | Q4 2025 | Feb 13, 2026 |
| 72 Investment Holdings, LLC | History | No change | 667,778 | 11,886 | 23.5% | 3.95% | 10 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 629,985 | 11,213 | 0.0% | 0.0% | 11 | +314,227 | 99.52% | Q4 2025 | Feb 17, 2026 |
| BlackRock, Inc. | History | Added to | 607,874 | 10,820 | 0.0% | 0.0% | 12 | +239,995 | 65.24% | Q4 2025 | Feb 12, 2026 |
| Ikarian Capital, LLC | History | Added to | 515,000 | 9,167 | 0.72% | 0.04% | 13 | +405,000 | 368.18% | Q4 2025 | Feb 18, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Added to | 497,156 | 8,849 | 0.0% | 0.0% | 14 | +341,480 | 219.35% | Q4 2025 | Feb 17, 2026 |
| ALKEON CAPITAL MANAGEMENT LLC | History | No change | 477,101 | 8,492 | 0.01% | 0.0% | 15 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| NORTHERN TRUST CORP | History | Added to | 474,373 | 8,443 | 0.0% | 0.0% | 16 | +13,088 | 2.84% | Q4 2025 | Feb 17, 2026 |
| Integral Health Asset Management, LLC | History | Reduced | 375,000 | 6,675 | 0.33% | 0.11% | 17 | -25,000 | -6.25% | Q4 2025 | Feb 17, 2026 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | History | New | 336,762 | 5,994 | 0.04% | — | 18 | +336,762 | New | Q4 2025 | Feb 17, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 287,435 | 5,118 | 0.0% | 0.0% | 19 | +49,535 | 20.82% | Q4 2025 | Feb 09, 2026 |
| Peapod Lane Capital LLC | History | Reduced | 253,992 | 4,521 | 3.85% | 1.02% | 20 | -27,971 | -9.92% | Q4 2025 | Jan 28, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 241,741 | 4,302 | 0.0% | 0.0% | 21 | +193,375 | 399.82% | Q4 2025 | Feb 12, 2026 |
| AWM Investment Company, Inc. | History | Reduced | 225,000 | 4,005 | 0.39% | 0.11% | 22 | -55,483 | -19.78% | Q4 2025 | Feb 13, 2026 |
| Spruce Street Capital LP | History | New | 222,844 | 3,966 | 1.31% | — | 23 | +222,844 | New | Q4 2025 | Feb 13, 2026 |
| MARSHALL WACE, LLP | History | Reduced | 193,109 | 3,437 | 0.0% | 0.0% | 24 | -632,116 | -76.6% | Q4 2025 | Feb 13, 2026 |
| TWO SIGMA ADVISERS, LP | History | Added to | 160,100 | 2,849 | 0.01% | 0.0% | 25 | +10,200 | 6.8% | Q4 2025 | Feb 17, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 156,319 | 2,782 | 0.0% | 0.0% | 26 | +66,068 | 73.2% | Q4 2025 | Mar 25, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 140,317 | 2,497 | 0.0% | 0.0% | 27 | +23,738 | 20.36% | Q4 2025 | Feb 17, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | Added to | 139,304 | 2,479 | 0.04% | 0.0% | 28 | +106,832 | 329.0% | Q4 2025 | Feb 17, 2026 |
| STATE STREET CORP | History | Added to | 130,665 | 2,325 | 0.0% | 0.0% | 29 | +27,480 | 26.63% | Q4 2025 | Feb 13, 2026 |
| ORBIMED ADVISORS LLC | History | Reduced | 125,000 | 2,225 | 0.05% | 0.02% | 30 | -125,000 | -50.0% | Q4 2025 | Feb 17, 2026 |
| D. E. Shaw & Co., Inc. | History | New | 124,795 | 2,221 | 0.0% | — | 31 | +124,795 | New | Q4 2025 | Feb 17, 2026 |
| Qube Research & Technologies Ltd | History | New | 112,792 | 2,007 | 0.0% | — | 32 | +112,792 | New | Q4 2025 | Feb 17, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 97,399 | 1,733 | 0.0% | 0.0% | 33 | +21,627 | 28.54% | Q4 2025 | Feb 12, 2026 |
| STIFEL FINANCIAL CORP | History | Reduced | 87,164 | 1,551 | 0.0% | 0.0% | 34 | -34,836 | -28.55% | Q4 2025 | Feb 13, 2026 |
| Almitas Capital LLC | History | Reduced | 78,520 | 1,397 | 0.31% | 0.18% | 35 | -116,625 | -59.76% | Q4 2025 | Feb 17, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | No change | 77,653 | 1,382 | 0.03% | 0.01% | 36 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| IEQ CAPITAL, LLC | History | Added to | 75,294 | 1,340 | 0.0% | 0.0% | 37 | +12,315 | 19.55% | Q4 2025 | Feb 13, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | History | New | 69,016 | 1,228 | 0.0% | — | 38 | +69,016 | New | Q4 2025 | Feb 17, 2026 |
| MORGAN STANLEY | History | Added to | 65,581 | 1,167 | 0.0% | 0.0% | 39 | +4,545 | 7.45% | Q4 2025 | Feb 13, 2026 |
| 683 Capital Management, LLC | History | New | 64,782 | 1,153 | 0.05% | — | 40 | +64,782 | New | Q4 2025 | Feb 17, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Added to | 57,546 | 1,020 | 0.0% | 0.0% | 41 | +43,023 | 296.24% | Q4 2025 | Feb 10, 2026 |
| AdvisorShares Investments LLC | History | New | 44,077 | 784 | 0.13% | — | 42 | +44,077 | New | Q4 2025 | Feb 10, 2026 |
| Allianz Asset Management GmbH | History | Added to | 43,000 | 765 | 0.0% | 0.0% | 43 | +6,000 | 16.22% | Q4 2025 | Feb 11, 2026 |
| Quantinno Capital Management LP | History | No change | 35,579 | 633 | 0.0% | 0.0% | 44 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Hudson Bay Capital Management LP | History | New | 34,789 | 619 | 0.0% | — | 45 | +34,789 | New | Q4 2025 | Feb 13, 2026 |
| SCS Capital Management LLC | History | Reduced | 33,389 | 594 | 0.01% | 0.0% | 46 | -33,388 | -50.0% | Q4 2025 | Feb 10, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 33,235 | 591 | 0.0% | 0.0% | 47 | +32,721 | 6365.95% | Q4 2025 | Feb 10, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | New | 31,176 | 554 | 0.0% | — | 48 | +31,176 | New | Q4 2025 | Feb 12, 2026 |
| BARCLAYS PLC | History | Added to | 30,392 | 540 | 0.0% | — | 49 | +30,350 | 72261.9% | Q4 2025 | Feb 13, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | Reduced | 30,228 | 539 | 0.0% | 0.0% | 50 | -29,200 | -49.14% | Q4 2025 | Feb 17, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 29,773 | 529 | 0.0% | 0.0% | 51 | -20,579 | -40.87% | Q4 2025 | Feb 17, 2026 |
| Artia Global Partners LP | History | New | 29,192 | 519 | 0.07% | — | 52 | +29,192 | New | Q4 2025 | Feb 17, 2026 |
| CITIZENS FINANCIAL GROUP INC/RI | History | Reduced | 28,190 | 501 | 0.01% | 0.0% | 53 | -11,810 | -29.53% | Q4 2025 | Jan 30, 2026 |
| ALPS ADVISORS INC | History | New | 25,505 | 453 | 0.0% | — | 54 | +25,505 | New | Q4 2025 | Feb 12, 2026 |
| BROWN ADVISORY INC | History | No change | 25,000 | 445 | 0.0% | 0.0% | 55 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| UNIVERSITY OF TEXAS/TEXAS AM INVESTMENT MANAGEMENT CO | History | No change | 22,175 | 394 | 0.06% | 0.01% | 56 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| XTX Topco Ltd | History | Added to | 20,824 | 370 | 0.01% | 0.0% | 57 | +5,078 | 32.25% | Q4 2025 | Feb 17, 2026 |
| AlphaCore Capital LLC | History | Added to | 20,000 | 356 | 0.01% | 0.0% | 58 | +10,000 | 100.0% | Q4 2025 | Feb 05, 2026 |
| ExodusPoint Capital Management, LP | History | New | 18,786 | 334 | 0.0% | — | 59 | +18,786 | New | Q4 2025 | Feb 17, 2026 |
| UBS Group AG | History | Reduced | 18,489 | 329 | 0.0% | 0.0% | 60 | -120,542 | -86.7% | Q4 2025 | Jan 29, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | New | 17,064 | 303 | 0.0% | — | 61 | +17,064 | New | Q4 2025 | Feb 13, 2026 |
| Vanguard Personalized Indexing Management, LLC | History | Reduced | 16,485 | 293 | 0.0% | 0.0% | 62 | -560 | -3.29% | Q4 2025 | Feb 13, 2026 |
| AMERIPRISE FINANCIAL INC | History | No change | 13,487 | 240 | 0.0% | 0.0% | 63 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| CITIGROUP INC | History | New | 12,566 | 223 | 0.0% | — | 64 | +12,566 | New | Q4 2025 | Feb 13, 2026 |
| OMERS ADMINISTRATION Corp | History | New | 12,400 | 220 | 0.0% | — | 65 | +12,400 | New | Q4 2025 | Feb 13, 2026 |
| BANK OF MONTREAL /CAN/ | History | Added to | 11,355 | 202 | 0.0% | 0.0% | 66 | +13 | 0.11% | Q4 2025 | Feb 12, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | History | New | 11,120 | 197 | 0.0% | — | 68 | +11,120 | New | Q4 2025 | Feb 17, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 11,092 | 197 | 0.0% | — | 67 | +10,968 | 8845.16% | Q4 2025 | Feb 17, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | New | 10,360 | 184 | 0.0% | — | 69 | +10,360 | New | Q4 2025 | Feb 13, 2026 |
| FMR LLC | History | Reduced | 6,374 | 113 | 0.0% | 0.0% | 70 | -1,302 | -16.96% | Q4 2025 | Feb 17, 2026 |
| AlphaQuest LLC | History | New | 3,821 | 68 | 0.0% | — | 71 | +3,821 | New | Q4 2025 | Feb 09, 2026 |
| Torren Management, LLC | History | New | 3,484 | 62 | 0.03% | — | 72 | +3,484 | New | Q4 2025 | Jan 30, 2026 |
| ROTHSCHILD INVESTMENT LLC | History | No change | 2,885 | 51 | 0.0% | 0.0% | 73 | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| WHITTIER TRUST CO OF NEVADA INC | History | No change | 2,482 | 37 | 0.0% | 0.0% | 74 | 0 | 0.0% | Q4 2025 | Jan 26, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 1,987 | 35 | 0.0% | 0.0% | 75 | -403 | -16.86% | Q4 2025 | Feb 17, 2026 |
| GROUP ONE TRADING LLC | History | Reduced | 1,413 | 25 | 0.0% | 0.0% | 76 | -1,245 | -46.84% | Q4 2025 | Feb 12, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Reduced | 1,307 | 23 | 0.0% | 0.0% | 77 | -159 | -10.85% | Q4 2025 | Feb 06, 2026 |
| SIGNATUREFD, LLC | History | New | 1,065 | 18 | 0.0% | — | 78 | +1,065 | New | Q4 2025 | Jan 20, 2026 |
| FEDERATED HERMES, INC. | History | Reduced | 770 | 13 | 0.0% | 0.0% | 80 | -2,577 | -76.99% | Q4 2025 | Feb 12, 2026 |
| WELLS FARGO & COMPANY/MN | History | New | 765 | 13 | 0.0% | — | 79 | +765 | New | Q4 2025 | Feb 13, 2026 |
| EverSource Wealth Advisors, LLC | History | Reduced | 661 | 11 | 0.0% | 0.0% | 81 | -64 | -8.83% | Q4 2025 | Feb 06, 2026 |
| Fortitude Family Office, LLC | History | No change | 511 | 9 | 0.0% | 0.0% | 82 | 0 | 0.0% | Q4 2025 | Jan 15, 2026 |
| NISA INVESTMENT ADVISORS, LLC | History | No change | 338 | 6 | 0.0% | 0.0% | 83 | 0 | 0.0% | Q4 2025 | Jan 15, 2026 |
| Russell Investments Group, Ltd. | History | No change | 306 | 5 | 0.0% | 0.0% | 84 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| CWM, LLC | History | Reduced | 154 | 3 | 0.0% | 0.0% | 86 | -770 | -83.33% | Q4 2025 | Jan 26, 2026 |
| North Star Investment Management Corp. | History | No change | 174 | 3 | 0.0% | — | 85 | 0 | 0.0% | Q4 2025 | Jan 30, 2026 |
| Global Retirement Partners, LLC | History | New | 150 | 2 | 0.0% | — | 89 | +150 | New | Q4 2025 | Feb 06, 2026 |
| JPMORGAN CHASE & CO | History | New | 146 | 2 | 0.0% | — | 87 | +146 | New | Q4 2025 | Feb 11, 2026 |
| US BANCORP \DE\ | History | New | 113 | 2 | 0.0% | — | 88 | +113 | New | Q4 2025 | Jan 30, 2026 |
| Cornerstone Financial Management LLC | History | New | 69 | 1 | 0.0% | — | 91 | +69 | New | Q4 2025 | Feb 13, 2026 |
| ROYAL BANK OF CANADA | History | New | 34 | 1 | 0.0% | — | 90 | +34 | New | Q4 2025 | Feb 17, 2026 |
| AQR CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -30,412 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Squarepoint Ops LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -22,816 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Bowie Capital Management, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -19,484 | -100.0% | Q3 2025 | Nov 13, 2025 |
| PRELUDE CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -11,401 | -100.0% | Q3 2025 | Nov 14, 2025 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | History | Closed out | 0 | 0 | — | 0.0% | — | -1,450 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Advisory Services Network, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -802 | -100.0% | Q3 2025 | Nov 18, 2025 |
| True Wealth Design, LLC | History | Closed out | 0 | 0 | — | — | — | -126 | -100.0% | Q3 2025 | Oct 21, 2025 |
| OSAIC HOLDINGS, INC. | History | Closed out | 0 | 0 | — | — | — | -47 | -100.0% | Q3 2025 | Nov 14, 2025 |
| Arax Advisory Partners | History | Reduced | 5 | 0 | — | — | — | -37 | -88.1% | Q4 2025 | Feb 13, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | New | 33 | 0 | — | — | — | +33 | New | Q4 2025 | Feb 17, 2026 |
| Farther Finance Advisors, LLC | History | New | 31 | 0 | — | — | — | +31 | New | Q4 2025 | Jan 23, 2026 |
| SHP Wealth Management | History | New | 25 | 0 | — | — | — | +25 | New | Q4 2025 | Mar 04, 2026 |
| SBI Securities Co., Ltd. | History | Added to | 12 | 0 | — | — | — | +9 | 300.0% | Q4 2025 | Feb 03, 2026 |
| Cloud Capital Management, LLC | History | Closed out | 0 | 0 | — | — | — | -8 | -100.0% | Q3 2025 | Nov 03, 2025 |
| Optiver Holding B.V. | History | No change | 20 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |