Sean Tucker - 16 Mar 2026 Form 4 Insider Report for Vaxart, Inc. (VXRT)

Role
SVP, Chief Scientific Officer
Signature
/s/ Edward Berg, Attorney-in-Fact
Issuer symbol
VXRT
Transactions as of
16 Mar 2026
Net transactions value
$0
Form type
4
Filing time
18 Mar 2026, 19:42:42 UTC
Previous filing
05 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Tucker Sean SVP, Chief Scientific Officer C/O VAXART, INC., 170 HARBOR WAY, SUITE 300, SOUTH SAN FRANCISCO /s/ Edward Berg, Attorney-in-Fact 18 Mar 2026 0001652204

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction VXRT Common Stock Award +200,000 +27% $0.000000* 931,225 16 Mar 2026 Direct F1
holding VXRT Common Stock 51,465 16 Mar 2026 By joint tenancy with Frances Chang and Sean Tucker
holding VXRT Common Stock 9,060 16 Mar 2026 By Spouse

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction VXRT Stock Option (right to buy) Award +410,000 $0.000000* 410,000 16 Mar 2026 Common Stock 410,000 $0.6795 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Grant of shares upon vesting of restricted stock units. 25% of the shares underlying the award shall vest on each anniversary of the vesting commencement date of March 16, 2026, so that the restricted stock units would be fully vested on the fourth anniversary of the vesting commencement date.
F2 The shares subject to this stock option shall vest as to 25% of the shares underlying the grant on March 16, 2027, the first anniversary of the date that vesting commenced, and thereafter in 36 equal monthly installments such that the stock option shall be fully vested on March 16, 2030.