Profile
| Role | Insider |
|---|---|
| Notability | 20/100 |
Board memberships
- Annexon, Inc.
Updated Jul 17, 2026
Carson William H. has filed 2 SEC Form 4 filings across 1 company in the last 90 days — buying. Lifetime open-market purchases: $219K. Historical track record: 3/5 stars across 8 tracked purchases.
| Role | Insider |
|---|---|
| Notability | 20/100 |
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★★★☆☆ (3/5) |
|---|---|
| Total purchases tracked | 8 |
| Purchases with forward-return data | 8 |
| 30-day win rate | 6250% |
| 90-day win rate | 6250% |
| Avg 5-day return | +246.17% |
| Avg 30-day return | +700.12% |
| Avg 90-day return | +1771.46% |
| Best 30-day return | +5024.15% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-13 | ANNX | Annexon, Inc. | P — Open-market purchase | 8.0K | $5.78 | $46K |
| 2026-04-14 | ANNX | Annexon, Inc. | P — Open-market purchase [10b5-1] | 8.0K | $6.20 | $50K |
| 2026-03-12 | ANNX | Annexon, Inc. | P — Open-market purchase [10b5-1] | 8.0K | $5.67 | $45K |
| 2025-09-30 | ANNX | Annexon, Inc. | P — Open-market purchase | 4.1K | $3.05 | $13K |
| 2025-09-02 | ANNX | Annexon, Inc. | P — Open-market purchase | 4.1K | $2.09 | $9K |
| 2025-07-30 | ANNX | Annexon, Inc. | P — Open-market purchase | 4.1K | $2.43 | $10K |
| 2025-06-30 | ANNX | Annexon, Inc. | P — Open-market purchase | 4.1K | $2.46 | $10K |
| 2024-12-04 | ANNX | Annexon, Inc. | P — Open-market purchase [10b5-1] | 3.2K | $5.33 | $17K |
| 2024-10-02 | ANNX | Annexon, Inc. | P — Open-market purchase [10b5-1] | 3.2K | $5.97 | $19K |
Carson William H. is a corporate insider — currently tracked as Insider of Annexon, Inc. (ANNX). InsiderAlpha tracks every SEC Form 4 filing in real time.
2 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 9 open-market purchases ($219K) and 0 open-market sales () across all tracked filings.
Across 8 tracked purchases, Carson William H. averaged +700.1% avg 30-day return with a 6250% 30-day win rate. InsiderAlpha rates the track record at 3/5 stars.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live Carson William H. profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.