Carson William H. 4

What Happened

• Carson William H., a director of Annexon, purchased 8,000 shares of Annexon, Inc. (ANNX) on April 10, 2026 at $6.20 per share, for a total transaction value of $49,600. The Form 4 reports the transaction as a purchase (code P), described as an open-market or private purchase.

Key Details

• Transaction date and price: 2026-04-10 — 8,000 shares @ $6.20 each.
• Total value: $49,600.
• Shares owned after transaction: not disclosed in the provided filing.
• Footnote: the purchase was effected pursuant to the reporting person’s Rule 10b5-1 trading plan adopted December 8, 2025.
• Filing: Form 4 filed April 14, 2026 — appears to be filed within the required 2 business-day window (timely).

Context

• A purchase by an insider can be viewed as a positive signal, but this trade was executed under a prearranged 10b5-1 plan, which means it was scheduled in advance and may not reflect a new or immediate change in the director’s view.