ANNX — Annexon, Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2020-07-24.
Performance
Technicals
Others in Healthcare
Measured signals that fired on ANNX
| date | signal | measured base rate |
|---|---|---|
| 2026-07-16 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-06-12 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-05-26 | Short volume far above its own normal short | -0.76% over 21 days · t = -2.79 · n = 5,897 statistically distinguishable from its control group |
| 2026-05-15 | Institutional holders jumped in a quarter ownership | -0.52% over 21 days · t = -0.38 · n = 1,553 not distinguishable from its control group |
| 2026-03-10 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-06-11 | Yednock Ted EVP & CHIEF INNOVATION OFFICER | Option exercise 10b5-1 plan | 30.6K | 1.85 | 56.7K |
| 2026-05-28 | Satter Muneer A Director | Open-market purchase | 613.5K | 5.41 | 3.3M |
| 2026-05-11 | Carson William H. Director | Open-market purchase 10b5-1 plan | 8.0K | 5.78 | 46.2K |
| 2026-04-10 | Carson William H. Director | Open-market purchase 10b5-1 plan | 8.0K | 6.20 | 49.6K |
| 2026-03-10 | Carson William H. Director | Open-market purchase 10b5-1 plan | 8.0K | 5.67 | 45.4K |
| 2026-03-02 | ARTIS DEAN RICHARD EVP & CHIEF SCIENTIFIC OFFICER | Open-market sale | 5.9K | 5.43 | 32.0K |
| 2026-03-02 | Dananberg Jamie CHIEF MEDICAL OFFICER | Open-market sale | 5.8K | 5.43 | 31.6K |
| 2026-03-02 | Yednock Ted EVP & CHIEF INNOVATION OFFICER | Open-market sale | 5.6K | 5.42 | 30.2K |
| 2026-03-02 | Lew Jennifer EVP & CHIEF FINANCIAL OFFICER | Open-market sale | 5.6K | 5.42 | 30.2K |
| 2026-03-02 | Overdorf Michael EVP & CHIEF BUSINESS OFFICER | Open-market sale | 4.3K | 5.42 | 23.5K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| Redmile Group, LLC | 80.6M | 14.5M |
| BlackRock, Inc. | 60.6M | 10.9M |
| FMR LLC | 58.9M | 10.6M |
| BVF INC/IL | 48.2M | 8.7M |
| STATE STREET CORP | 38.3M | 6.9M |
| VANGUARD CAPITAL MANAGEMENT LLC | 33.0M | 6.0M |
| Bain Capital Life Sciences Investors, LLC | 28.9M | 5.2M |
| Bellevue Group AG | 28.6M | 5.2M |
| MAK CAPITAL ONE LLC | 26.2M | 4.7M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 23.8M | 4.3M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 144 | 2026-08-13 | — | on EDGAR ↗ |
| 4 | 2026-08-12 | 2026-08-10 | on EDGAR ↗ |
| 3 | 2026-08-12 | 2026-08-10 | on EDGAR ↗ |
| 10-Q | 2026-08-12 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-12 | 2026-08-12 | on EDGAR ↗ |
| 8-K | 2026-08-10 | 2026-08-10 | on EDGAR ↗ |
| SCHEDULE 13G | 2026-08-07 | — | on EDGAR ↗ |
| 8-K | 2026-08-06 | 2026-08-06 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Annexon (ANNX) Q2 2026 Earnings Call Transcript · 2026-08-19
- Annexon outlines Q4 BLA filing for tanruprubart while adding month 24 dual primary endpoint to ARCHER II · 2026-08-12
- Why is Annexon stock sliding today? · 2026-08-12
- Annexon, Inc. (ANNX) filed form 8-K · 2026-08-12 · SEC EDGAR
- Why is Annexon stock sliding today? · 2026-08-12
- Annexon Biosciences GAAP EPS of -$0.28 misses by $0.04 · 2026-08-12
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