Tucker Sean 4

What Happened

• Sean Tucker, Senior Vice President & Chief Scientific Officer of Vaxart, received two awards on 2026-03-16: 200,000 restricted stock units (RSUs) and a 410,000-share derivative award (stock option). Both grants were reported at $0.00 cash cost to the insider (typical for compensation awards) and are subject to vesting schedules.

Key Details

• Transaction date and price: 2026-03-16; reported acquisition price $0.00 for both awards.
• RSU vesting (Footnote F1): 200,000 RSUs vest 25% on each anniversary of the March 16, 2026 vesting commencement date (fully vested on the fourth anniversary).
• Option vesting (Footnote F2): 410,000-share option vests 25% on March 16, 2027, then in 36 equal monthly installments, fully vested on March 16, 2030.
• Shares owned after transaction: Not specified in the Form 4 filing.
• Filing timeliness: Form 4 filed on 2026-03-18 for a 2026-03-16 transaction — filed within the standard two-business-day deadline.

Context

• These transactions are internal compensation awards (not open-market purchases or sales). RSUs and option grants are routine executive compensation and do not by themselves signal buying or selling in the market. The option is a typical time-based grant that requires continued service and future vesting to realize value.