Satter Muneer A 4

What Happened

• Muneer A. Satter, a director of Annexon, was granted a derivative award covering 65,000 shares (reported as transaction code A) on June 11, 2026. The filing shows $0 paid at grant (no cash changed hands). This was a company award (not an open-market purchase or sale).

Key Details

• Transaction date: June 11, 2026; Form 4 filed June 15, 2026 (timely within the SEC’s two-business-day window).
• Transaction type/code: A (Grant/Award of derivative securities).
• Amount: 65,000 underlying shares; reported price $0.00; total reported value $0.
• Shares owned after transaction: Not disclosed in the filing.
• Footnote: The underlying option shares vest and become exercisable 100% on the earlier of (i) the first anniversary of June 11, 2026 or (ii) the next annual meeting following June 11, 2026, subject to Satter’s continuous service as a director until vesting.

Context

• This is an equity compensation award (derivative option grant), not a purchase or sale. Such awards are common for director compensation and do not by themselves signal buying or selling in the open market. The option is not reported as exercised or sold; vesting is conditioned on continued service.