Annexon, Inc.
ANNX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001528115
In the last 90 days, Annexon, Inc. insiders filed 1 open-market purchase and 0 sales; 216 institutions reported holding it in 13F filings for Q2 2026, worth $1.02B in total; no superinvestor holds it.
13F holders, Q1 2024
Institutional positions in Annexon, Inc. as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 127
- +28 vs. Q4 2023
- Shares held
- 95.0M
- +14.2M (+17.6%) vs. Q4 2023
- Total value
- $679.4M
- +$313.7M (+85.8%) vs. Q4 2023
- New holders
- 39
- 42 more added
- Sold out
- 11
- 27 more reduced
Compare with Q4 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ANNX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 216 | $1.02B |
| Q1 2026 | 217 | $863.7M |
| Q4 2025 | 168 | $687.2M |
| Q3 2025 | 144 | $309.2M |
| Q2 2025 | 129 | $238.7M |
| Q1 2025 | 148 | $192.1M |
| Q4 2024 | 153 | $574.6M |
| Q3 2024 | 142 | $651.8M |
| Q2 2024 | 140 | $526.9M |
| Q1 2024 | 127 | $679.4M |
| Q4 2023 | 99 | $365.7M |
| Q3 2023 | 93 | $126.0M |
| Q2 2023 | 95 | $190.0M |
| Q1 2023 | 100 | $207.6M |
| Q4 2022 | 84 | $243.3M |
| Q3 2022 | 72 | $292.3M |
| Q2 2022 | 78 | $144.9M |
| Q1 2022 | 100 | $105.9M |
| Q4 2021 | 97 | $445.7M |
| Q3 2021 | 82 | $708.6M |
| Q2 2021 | 74 | $873.7M |
| Q1 2021 | 72 | $1.04B |
Institutions, Q1 2024
Shares, value and share of portfolio for each institution holding Annexon, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Massachusetts Financial Services Co | 773,914 | $5.55M | 0.00% | −4,054−0.5% | Reduced |
| Kennedy Capital Management, Inc. | 774,698 | $5.55M | 0.11% | −301,032−28.0% | Reduced |
| Invesco Ltd. | 789,044 | $5.66M | 0.00% | +767,272+3,524.1% | Added |
| Morgan Stanley | 899,513 | $6.45M | 0.00% | +707,453+368.3% | Added |
| Acadian Asset Management LLC | 957,993 | $6.87M | 0.02% | +83,969+9.6% | Added |
| JPMorgan Chase & Co | 959,648 | $6.88M | 0.00% | +930,063+3,143.7% | Added |
| Polar Capital Holdings Plc | 1,000,000 | $7.17M | 0.04% | +1,000,000 | New |
| State Street Corp | 1,198,123 | $8.59M | 0.00% | +351,849+41.6% | Added |
| Millennium Management LLC | 1,278,188 | $9.16M | 0.01% | +467,169+57.6% | Added |
| Price T Rowe Associates Inc | 1,323,704 | $9.49M | 0.00% | +1,311,195+10,482.0% | Added |
| Ikarian Capital, LLC | 1,405,000 | $10.1M | 2.74% | −1,245,000−47.0% | Reduced |
| Geode Capital Management, LLC | 1,429,486 | $10.3M | 0.00% | +507,254+55.0% | Added |
| Pictet Asset Management Holding SA | 1,644,591 | $11.8M | 0.01% | −158,558−8.8% | Reduced |
| Woodline Partners LP | 2,000,609 | $14.3M | 0.13% | +6090.0% | Added |
| Octagon Capital Advisors LP | 2,050,000 | $14.7M | 1.79% | 00.0% | Unchanged |
| Bellevue Group AG | 2,182,290 | $15.6M | 0.24% | +2,182,290 | New |
| GMT Capital Corp | 2,645,524 | $19.0M | 0.75% | −374,950−12.4% | Reduced |
| Logos Global Management LP | 3,050,000 | $21.9M | 2.30% | −1,900,000−38.4% | Reduced |
| Vanguard Group Inc | 3,747,655 | $26.9M | 0.00% | +1,839,329+96.4% | Added |
| Adage Capital Partners GP, L.L.C. | 4,319,975 | $31.0M | 0.06% | −680,000−13.6% | Reduced |
| BlackRock Inc. | 5,043,530 | $36.2M | 0.00% | +1,724,951+52.0% | Added |
| Point72 Asset Management, L.P. | 5,156,400 | $37.0M | 0.11% | +5,156,400 | New |
| Redmile Group, LLC | 5,503,190 | $39.5M | 1.45% | 00.0% | Unchanged |
| BVF Inc | 7,000,000 | $50.2M | 1.38% | 00.0% | Unchanged |
| Satter Management Co., L.P. | 7,406,024 | $53.1M | 55.85% | 00.0% | Unchanged |
| Bain Capital Life Sciences Investors, LLC | 8,703,268 | $62.4M | 5.02% | +641,549+8.0% | Added |
| FMR LLC | 9,372,822 | $67.2M | 0.00% | −312,579−3.2% | Reduced |
| Sectoral Asset Management Inc | 0 | $0 | 0.00% | −650,911−100.0% | Sold out |
| Vontobel Holding Ltd. | 0 | $0 | 0.00% | −650,911−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −417,429−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −378,279−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −27,880−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −15,615−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −12,012−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −11,857−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −10,719−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −10,107−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −614−100.0% | Sold out |