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.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
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