Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in ANTX held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Vivo Capital, LLC | 3.2M | $10.8M | β | 11.509% | 0.90% |
| 2 | COMMODORE CAPITAL LP | 2.3M | $8.0M | β | 8.517% | 0.46% |
| 3 | MILLENNIUM MANAGEMENT LLC | 2.2M | $7.6M | +2222.8% | 8.111% | 0.01% |
| 4 | Spruce Street Capital LP | 1.7M | $5.6M | β | 6.062% | 1.34% |
| 5 | Almitas Capital LLC | 1.5M | $5.1M | 0.0% | 5.398% | 1.14% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 1.0M | $3.5M | β | 3.690% | 0.00% |
| 7 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 1.0M | $3.4M | β | 3.649% | 0.01% |
| 8 | Woodline Partners LP | 994K | $3.4M | +580.7% | 3.626% | 0.01% |
| 9 | Boxer Capital Management, LLC | 749K | $2.6M | β | 2.734% | 0.34% |
| 10 | Stonepine Capital Management, LLC | 714K | $2.4M | +13.7% | 2.605% | 1.95% |
| 11 | AMERIPRISE FINANCIAL INC | 696K | $2.4M | β | 2.541% | 0.00% |
| 12 | Sio Capital Management, LLC | 657K | $2.2M | β | 2.398% | 0.32% |
| 13 | Ally Bridge Group (NY) LLC | 526K | $1.8M | β | 1.921% | 1.68% |
| 14 | Prosight Management, LP | 516K | $1.8M | β | 1.882% | 0.29% |
| 15 | BANK OF NOVA SCOTIA | 459K | $1.6M | 0.0% | 1.676% | 0.00% |
| 16 | BANK OF AMERICA CORP /DE/ | 394K | $1.3M | +2.2% | 1.437% | 0.00% |
| 17 | BlackRock, Inc. | 319K | $1.1M | -1.4% | 1.163% | 0.00% |
| 18 | JANE STREET GROUP, LLC | 304K | $1.0M | +1593.0% | 1.108% | 0.01% |
| 19 | LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | 298K | $1.0M | -30.9% | 1.088% | 0.06% |
| 20 | GEODE CAPITAL MANAGEMENT, LLC | 287K | $981K | +13.8% | 1.046% | 0.00% |
| 21 | BANK OF MONTREAL /CAN/ | 260K | $890K | -38.4% | 0.949% | 0.00% |
| 22 | MORGAN STANLEY | 234K | $801K | +1.9% | 0.855% | 0.00% |
| 23 | CANTOR FITZGERALD, L. P. | 200K | $684K | β | 0.730% | 0.02% |
| 24 | Seven Fleet Capital Management LP | 200K | $683K | β | 0.729% | 0.22% |
| 25 | RENAISSANCE TECHNOLOGIES LLC | 199K | $680K | -41.3% | 0.726% | 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 ANTX β a direct measure of their conviction.
Filings activity in ANTX 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 | 53 | +39% | 57.49% | +49.89 pp | $75M | +656% |
| Q4 2025 | 38 | +5.6% | 7.60% | 0.49 pp | $10M | 6.0% |
| Q3 2025 | 36 | 5.3% | 8.09% | +1.34 pp | $11M | +20% |
| Q2 2025 | 38 | 2.6% | 6.75% | 8.27 pp | $9M | 55% |
| Q1 2025 | 39 | +0.0% | 15.02% | 0.42 pp | $20M | 2.7% |
| Q4 2024 | 39 | +18% | 15.44% | +4.34 pp | $20M | +39% |
| Q3 2024 | 33 | 30% | 11.10% | 20.89 pp | $14M | 65% |
| Q2 2024 | 47 | β | 31.99% | β | $42M | 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.
Quick answers to the most common questions about buying ANTX stock.
Based on Q1 2026 13F filings, institutional ownership of AN2 Therapeutics, Inc. stands at 57.5%, held across 53 reporting institutions.
Vivo Capital, LLC is the largest reported institutional holder of ANTX, with approximately 3,153,640 shares worth $0.01B as of Q1 2026.
Yes β 3 widely-followed marquee investors appear among the top 25 institutional holders of ANTX, including MILLENNIUM MANAGEMENT LLC, JANE STREET GROUP, LLC, RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for ANTX is 77 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 ANTX during Q1 2026, while 10 fully exited. 25 added to existing positions and 2 trimmed.
ANTX institutional ownership rose by 49.89 percentage points quarter-over-quarter, with a net change of +15 holders.
The top 10 institutions account for 70.0% of all reported 13F value in ANTX, and the top 25 account for 95.4%.
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.
AN2 Therapeutics, Inc. (ANTX) Institutional Ownership