64% buyers of institutions opening or closing positions this quarter
11 more new buyers than exits, ownership rose 18.71 percentage points vs the prior quarter, and 2 well-known fund managers in the top 25.
64% buyers of institutions opening or closing positions this quarter
79.9% institutional ownership
72 Investment Holdings, portfolio allocation
Institutional ownership vs Biotechnology peers
No Form 4 insider transactions on file
Latest positioning in ANRO across 13F flow, ownership shift, marquee holders, and holder-count growth.
Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in ANRO held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Falcon Edge Capital, LP | 3.7M | $83.4M | 0.0% | 10.565% | 10.54% |
| 2 | COMMODORE CAPITAL LP | 2.7M | $61.2M | +49.4% | 7.760% | 3.54% |
| 3 | Vestal Point Capital, LP | 2.1M | $46.4M | -16.9% | 5.882% | 1.30% |
| 4 | PERCEPTIVE ADVISORS LLC | 2.0M | $45.2M | +12.6% | 5.727% | 0.88% |
| 5 | Spruce Street Capital LP | 1.3M | $29.1M | +494.7% | 3.776% | 7.00% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 1.2M | $27.1M | β | 3.439% | 0.00% |
| 7 | FRANKLIN RESOURCES INC | 1.1M | $24.8M | -1.6% | 3.140% | 0.01% |
| 8 | Vivo Capital, LLC | 1.0M | $23.3M | 0.0% | 2.951% | 1.94% |
| 9 | ARMISTICE CAPITAL, LLC | 912K | $20.5M | -40.6% | 2.599% | 0.36% |
| 10 | MILLENNIUM MANAGEMENT LLC | 822K | $18.5M | +30.5% | 2.342% | 0.01% |
| 11 | 72 Investment Holdings, LLC | 668K | $15.0M | 0.0% | 1.903% | 30.26% |
| 12 | BlackRock, Inc. | 666K | $15.0M | +9.6% | 1.898% | 0.00% |
| 13 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 638K | $14.3M | +28.2% | 1.817% | 0.00% |
| 14 | Ikarian Capital, LLC | 515K | $11.6M | 0.0% | 1.468% | 0.94% |
| 15 | Point72 Asset Management, L.P. | 503K | $11.3M | -68.7% | 1.433% | 0.01% |
| 16 | Affinity Asset Advisors, LLC | 500K | $11.2M | β | 1.425% | 0.58% |
| 17 | Integral Health Asset Management, LLC | 500K | $11.2M | +33.3% | 1.425% | 0.54% |
| 18 | VR Adviser, LLC | 500K | $11.2M | β | 1.425% | 0.42% |
| 19 | DRIEHAUS CAPITAL MANAGEMENT LLC | 487K | $10.9M | +44.5% | 1.387% | 0.08% |
| 20 | NORTHERN TRUST CORP | 473K | $10.6M | -0.2% | 1.349% | 0.00% |
| 21 | JENNISON ASSOCIATES LLC | 386K | $8.7M | β | 1.101% | 0.01% |
| 22 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 385K | $8.7M | β | 1.097% | 0.01% |
| 23 | GEODE CAPITAL MANAGEMENT, LLC | 293K | $6.6M | +1.9% | 0.835% | 0.00% |
| 24 | ALKEON CAPITAL MANAGEMENT LLC | 227K | $5.1M | -52.4% | 0.647% | 0.01% |
| 25 | TWO SIGMA INVESTMENTS, LP | 216K | $4.9M | +54.0% | 0.616% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in ANRO β a direct measure of their conviction.
Filings activity in ANRO during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 107 | +11% | 79.92% | +18.71 pp | $601M | +33% |
| Q4 2025 | 96 | +25% | 61.21% | +52.13 pp | $452M | +574% |
| Q3 2025 | 77 | 2.5% | 9.08% | +3.96 pp | $67M | +77% |
| Q2 2025 | 79 | 4.8% | 5.12% | 0.70 pp | $38M | 14% |
| Q1 2025 | 83 | +6.4% | 5.82% | 6.50 pp | $44M | 52% |
| Q4 2024 | 78 | +4.0% | 12.32% | 20.32 pp | $91M | 62% |
| Q3 2024 | 75 | +29% | 32.64% | +8.04 pp | $241M | +33% |
| Q2 2024 | 58 | β | 24.60% | β | $182M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
No recent Form 4 insider transactions on file for ANRO.
Quick answers to the most common questions about buying ANRO stock.
Based on Q1 2026 13F filings, institutional ownership of Alto Neuroscience, Inc. stands at 79.9%, held across 107 reporting institutions.
Falcon Edge Capital, LP is the largest reported institutional holder of ANRO, with approximately 3,707,757 shares worth $0.08B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of ANRO, including Point72 Asset Management, L.P., TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for ANRO is 69 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
25 institutions opened new positions in ANRO during Q1 2026, while 14 fully exited. 59 added to existing positions and 22 trimmed.
ANRO institutional ownership rose by 18.71 percentage points quarter-over-quarter, with a net change of +11 holders.
The top 10 institutions account for 63.1% of all reported 13F value in ANRO, and the top 25 account for 89.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.