ANRO Alto Neuroscience, Inc.
Alto Neuroscience, Inc. (ANRO) Institutional Ownership
What the institutions did with ANRO last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Alpha Wave Global, LP | 3.7M | 12.6% |
| Commodore Capital LP | 2.7M | 9.2% |
| BlackRock, Inc. | 2.1M | 7.2% |
| PERCEPTIVE ADVISORS LLC | 1.6M | 5.5% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 1.6M | 5.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.4M | 4.7% |
| Spruce Street Capital LP | 1.4M | 4.6% |
| Vivo Capital, LLC | 1.2M | 4.1% |
| FRANKLIN RESOURCES INC | 1.0M | 3.4% |
| ARMISTICE CAPITAL, LLC | 864.0K | 2.9% |
| Affinity Asset Advisors, LLC | 850.0K | 2.9% |
| Vestal Point Capital, LP | 785.0K | 2.7% |
| STATE STREET CORP | 685.9K | 2.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 678.2K | 2.3% |
| 72 Investment Holdings, LLC | 667.8K | 2.3% |
| NORTHERN TRUST CORP | 632.7K | 2.1% |
| MILLENNIUM MANAGEMENT LLC | 558.3K | 1.9% |
| Point72 Asset Management, L.P. | 503.0K | 1.7% |
| Venrock Adviser, LLC | 500.0K | 1.7% |
| Integral Health Asset Management, LLC | 500.0K | 1.7% |
| Driehaus Capital Management LLC | 487.6K | 1.7% |
| Parkman Healthcare Partners LLC | 429.0K | 1.5% |
| Ikarian Capital, LLC | 407.3K | 1.4% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 358.3K | 1.2% |
| ORBIMED ADVISORS LLC | 257.9K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 666.2K | 2.1M | +1.5M |
| Vestal Point Capital, LP | Reduced | 2.1M | 785.0K | -1.3M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Increased | 385.0K | 1.6M | +1.2M |
| STATE STREET CORP | Increased | 199.5K | 685.9K | +486.4K |
| Parkman Healthcare Partners LLC | New | 0 | 429.0K | +429.0K |
| PERCEPTIVE ADVISORS LLC | Reduced | 2.0M | 1.6M | -400.0K |
| JENNISON ASSOCIATES LLC | Sold Out | 386.4K | 0 | -386.4K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 292.9K | 678.2K | +385.3K |
| Affinity Asset Advisors, LLC | Increased | 500.0K | 850.0K | +350.0K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 822.0K | 558.3K | -263.7K |
| Schonfeld Strategic Advisors LLC | New | 0 | 257.6K | +257.6K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 238.5K | 8.0K | -230.5K |
| Qube Research & Technologies Ltd | Sold Out | 209.3K | 0 | -209.3K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 1.2M | 1.4M | +182.5K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New | 0 | 181.1K | +181.1K |
| AMERIPRISE FINANCIAL INC | Increased | 13.3K | 191.0K | +177.7K |
| Vivo Capital, LLC | Increased | 1.0M | 1.2M | +173.3K |
| NORTHERN TRUST CORP | Increased | 473.4K | 632.7K | +159.3K |
| GOLDMAN SACHS GROUP INC | Increased | 104.7K | 236.8K | +132.1K |
| ALKEON CAPITAL MANAGEMENT LLC | Reduced | 227.1K | 102.1K | -125.0K |
| Ikarian Capital, LLC | Reduced | 515.0K | 407.3K | -107.7K |
| Saturn V Capital Management LP | Increased | 89.0K | 182.8K | +93.8K |
| ORBIMED ADVISORS LLC | Increased | 167.5K | 257.9K | +90.4K |
| AWM Investment Company, Inc. | Reduced | 170.0K | 80.0K | -90.0K |
| FRANKLIN RESOURCES INC | Reduced | 1.1M | 1.0M | -88.6K |
| Almitas Capital LLC | Sold Out | 78.5K | 0 | -78.5K |
| Bank of New York Mellon Corp | New | 0 | 76.3K | +76.3K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 216.1K | 147.3K | -68.8K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 17.0K | 80.6K | +63.6K |
| Nuveen, LLC | New | 0 | 62.3K | +62.3K |
| MARSHALL WACE, LLP | Increased | 176.3K | 225.5K | +49.2K |
| ARMISTICE CAPITAL, LLC | Reduced | 912.0K | 864.0K | -48.0K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 165.3K | 211.3K | +46.0K |
| D. E. Shaw & Co., Inc. | Sold Out | 45.3K | 0 | -45.3K |
| Hudson Bay Capital Management LP | Sold Out | 43.8K | 0 | -43.8K |
| UBS Group AG | Increased | 17.3K | 58.7K | +41.4K |
| 683 Capital Management, LLC | Sold Out | 40.0K | 0 | -40.0K |
| Brevan Howard Capital Management LP | Sold Out | 38.8K | 0 | -38.8K |
| BOOTHBAY FUND MANAGEMENT, LLC | Reduced | 139.3K | 106.2K | -33.1K |
| Balyasny Asset Management L.P. | Sold Out | 32.1K | 0 | -32.1K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 103.5K | 71.4K | -32.1K |
| RHUMBLINE ADVISERS | New | 0 | 31.6K | +31.6K |
| JANE STREET GROUP, LLC | Sold Out | 30.1K | 0 | -30.1K |
| AdvisorShares Investments LLC | Increased | 41.0K | 70.7K | +29.7K |
| Spruce Street Capital LP | Increased | 1.3M | 1.4M | +27.8K |
| ALLIANCEBERNSTEIN L.P. | New | 0 | 27.3K | +27.3K |
| DEUTSCHE BANK AG\ | New | 0 | 26.1K | +26.1K |
| WELLS FARGO & COMPANY/MN | Increased | 790 | 26.3K | +25.5K |
| Y-Intercept (Hong Kong) Ltd | Sold Out | 23.9K | 0 | -23.9K |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | Sold Out | 18.1K | 0 | -18.1K |
| POLEN CAPITAL MANAGEMENT LLC | Sold Out | 16.6K | 0 | -16.6K |
| IEQ CAPITAL, LLC | Reduced | 23.7K | 8.0K | -15.7K |
| MetLife Investment Management, LLC | New | 0 | 15.6K | +15.6K |
| Virtus Investment Advisers, LLC | New | 0 | 15.2K | +15.2K |
| BANK OF NOVA SCOTIA | New | 0 | 14.4K | +14.4K |
| Invesco Ltd. | New | 0 | 14.3K | +14.3K |
| TORONTO DOMINION BANK | Sold Out | 13.4K | 0 | -13.4K |
| Clearstead Advisors, LLC | Sold Out | 13.3K | 0 | -13.3K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 371.2K | 358.3K | -12.9K |
| AMERICAN CENTURY COMPANIES INC | Increased | 14.2K | 26.8K | +12.6K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.