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Annexon, Inc.
Pharmaceutical Preparations · DE · CIK 1528115
Annexon develops novel therapies blocking C1q and the classical complement pathway for autoimmune and neurodegenerative diseases
$772M
Market cap
$5.57
Last close
+1.6%
1D
+10.5%
5D
8.6M
Volume
Price · last 39 sessions-2.1%
May 4L $4.52 · H $5.72Jun 29
146
Total filings
Jun 12, 2026
Last filing
12/31
Fiscal year end
8-KShareholder VoteJun 12, 202610-Q10-QMay 7, 20268-KResults of OperationsMay 7, 2026DEFA14ADEFA14AApr 27, 2026DEF 14ADEF 14AApr 27, 202610-K10-KMar 30, 20268-KResults of OperationsMar 30, 20268-KExecutive ChangeFeb 17, 20268-KReg FD DisclosureJan 14, 20268-KCompany UpdateJan 12, 20268-KMaterial Agreement · Company UpdateNov 14, 2025424B5424B5Nov 13, 2025424B5424B5Nov 12, 202510-Q10-QNov 10, 20258-KResults of OperationsNov 10, 202510-Q10-QAug 14, 20258-KResults of OperationsAug 14, 20258-KSecurity-Holder RightsJun 25, 20258-KShareholder VoteJun 9, 202510-Q10-QMay 12, 20258-KResults of OperationsMay 12, 2025DEFA14ADEFA 14AApr 23, 2025DEF 14ADEF 14AApr 23, 202510-K10-KMar 3, 20258-KResults of OperationsMar 3, 20258-KCompany UpdateJan 13, 20258-KExecutive Change · Reg FD DisclosureJan 10, 20258-KCompany UpdateDec 16, 202410-Q10-QNov 14, 20248-KResults of OperationsNov 14, 2024SC 13GSC 13GNov 8, 2024SC 13GSC 13GOct 22, 20248-KCompany UpdateOct 22, 202410-Q10-QAug 12, 20248-KResults of OperationsAug 12, 20248-KCompany UpdateAug 5, 20248-KCompany UpdateJun 25, 20248-KShareholder VoteJun 12, 20248-KMaterial Agreement · Company UpdateJun 7, 2024424B5424B5Jun 7, 2024424B5424B5Jun 4, 20248-KReg FD Disclosure · Company UpdateJun 4, 202410-Q10-QMay 13, 20248-KResults of OperationsMay 13, 20248-KCompany UpdateMay 7, 2024DEFA14ADEFA14AApr 25, 2024DEF 14ADEF 14AApr 25, 2024SC 13GSC 13GApr 22, 2024424B5424B5Apr 5, 202410-K10-KMar 26, 20248-KResults of OperationsMar 26, 20248-KReg FD DisclosureMar 4, 2024SC 13GANNEXON, INC.Feb 12, 2024SC 13GSC 13GJan 10, 20248-KReg FD DisclosureJan 8, 20248-K/AMaterial Agreement · Company UpdateDec 22, 20238-KMaterial Agreement · Company UpdateDec 21, 2023424B5424B5Dec 21, 20238-KReg FD Disclosure · Company UpdateDec 20, 20238-KResults of OperationsNov 13, 202310-Q10-QNov 13, 20238-KCompany UpdateOct 24, 20238-KCompany UpdateOct 11, 20238-KResults of OperationsAug 7, 202310-Q10-QAug 7, 20238-KReg FD Disclosure · Company UpdateJul 31, 2023SC 13GSC 13GJun 22, 20238-KShareholder VoteJun 9, 20238-KCompany UpdateMay 25, 20238-KResults of OperationsMay 8, 202310-Q10-QMay 8, 2023DEFA14ADEFA14AApr 25, 2023DEF 14ADEF 14AApr 25, 20238-KCompany UpdateMar 13, 20238-KResults of OperationsMar 6, 202310-K10-KMar 6, 2023SC 13GANNEXON, INC.Feb 27, 2023SC 13GSC 13GFeb 3, 20238-KReg FD Disclosure · Company UpdateJan 9, 20238-KExecutive Change · Reg FD DisclosureJan 6, 2023
Insider Activity
In the 90 days to Mar 10, 2026: 1 insider bought $66K · 5 sold $313K.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 10, 2026 | Carson William H.Director | Buy | 8,000 | $5.67 | $45K |
| Mar 2, 2026 | Artis Dean RichardEVP & CHIEF SCIENTIFIC OFFICER | Sell | 5,894 | $5.43 | $32K |
| Mar 2, 2026 | Dananberg JamieCHIEF MEDICAL OFFICER | Sell | 5,820 | $5.43 | $32K |
| Mar 2, 2026 | Yednock TedEVP & CHIEF INNOVATION OFFICER | Sell | 5,566 | $5.42 | $30K |
| Mar 2, 2026 | Lew JenniferEVP & CHIEF FINANCIAL OFFICER | Sell | 5,565 | $5.42 | $30K |
| Mar 2, 2026 | Overdorf MichaelEVP & CHIEF BUSINESS OFFICER | Sell | 4,339 | $5.42 | $24K |
| Feb 18, 2026 | Yednock TedEVP & CHIEF INNOVATION OFFICER | Sell | 7,857 | $5.11 | $40K |
| Feb 18, 2026 | Lew JenniferEVP & CHIEF FINANCIAL OFFICER | Sell | 7,851 | $5.11 | $40K |
| Feb 18, 2026 | Overdorf MichaelEVP & CHIEF BUSINESS OFFICER | Sell | 6,225 | $5.10 | $32K |
| Feb 18, 2026 | Dananberg JamieCHIEF MEDICAL OFFICER | Sell | 5,290 | $5.10 | $27K |
| Feb 18, 2026 | Artis Dean RichardEVP & CHIEF SCIENTIFIC OFFICER | Sell | 5,290 | $5.10 | $27K |
| Dec 30, 2025 | Carson William H.Director | Buy | 4,115 | $5.02 | $21K |
| Dec 1, 2025 | Choi JungDirector | Buy | 33,000 | $4.19 | $138K |
| Dec 1, 2025 | Carson William H.Director | Buy | 4,115 | $4.47 | $18K |
| Nov 21, 2025 | Satter Muneer ADirector | Buy | 422,613 | $4.28 | $1.8M |
| Nov 20, 2025 | Satter Muneer ADirector | Buy | 400,000 | $4.48 | $1.8M |
| Nov 19, 2025 | Satter Muneer ADirector | Buy | 500,000 | $3.94 | $2.0M |
| Nov 18, 2025 | Satter Muneer ADirector | Buy | 500,000 | $3.18 | $1.6M |
| Nov 17, 2025 | Satter Muneer ADirector | Buy | 500,000 | $2.99 | $1.5M |
| Oct 30, 2025 | Carson William H.Director | Buy | 4,115 | $3.17 | $13K |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
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