Vaxart director Bono receives stock and option awards

Both awards vest over the first three grant-date anniversaries, subject to Raquel C. Bono's continued service on Vaxart's Board.

Rhea-AI Filing Summary

Vaxart, Inc. director Raquel C. Bono reported a restricted-stock-unit award covering 78,800 common shares and a stock-option award for 157,400 common shares on October 16, 2026. Both awards vest in equal installments on each of the first three anniversaries of the grant date, subject to her continuing service on the Board. The options have a $0.4527 exercise price and expire October 16, 2036.

Insider Trade Summary

Grant/Award: 236,200 shares

Grant/Award 2 txns

Insider Bono Raquel C.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (right to buy) F2	157,400	$0.00	$0.00
Grant/Award	Common Stock F1	78,800	$0.00	$0.00

Holdings After Transaction: Stock Option (right to buy) — 157,400 contracts (Direct); Common Stock — 78,800 shares (Direct)

Footnotes (2)

1. F1. Grant of shares upon vesting of restricted stock units. The shares underlying the award shall vest in equal installments on each of the first three anniversaries of the grant date, subject to the reporting person's continuing service on the Board of Directors (the "Board").
2. F2. The shares subject to this option shall vest in equal installments on each of the first three anniversaries of the grant date, subject to the reporting person's continuing service on the Board.

Key Figures

Restricted-stock-unit award: 78,800 common shares Stock-option award: 157,400 common shares Exercise price: $0.4527 per share +1 more

4 metrics

Restricted-stock-unit award 78,800 common shares Reported October 16, 2026

Stock-option award 157,400 common shares Reported October 16, 2026

Exercise price $0.4527 per share For the options granted October 16, 2026

Vesting schedule Equal installments on each of the first 3 grant-date anniversaries Subject to continuing service on the Board

Key Terms

restricted stock units, vest, exercise price

3 terms

restricted stock units financial

"Grant of shares upon vesting of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

vest financial

"shall vest in equal installments on each of the first three anniversaries"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

exercise price financial

"The option has a $0.4527 exercise price"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many VXRT shares were included in Raquel C. Bono's awards?

The awards reported for October 16, 2026 covered 78,800 common shares under restricted stock units and options for 157,400 common shares.

What is the exercise price and expiration date for Raquel C. Bono's VXRT options?

The options have a $0.4527 exercise price and expire on October 16, 2036.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/20/2026 - 07:05 PM EDT Accepted by SEC EDGAR 10/20/2026 - 07:04 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Bono Raquel C.

(Last) (First) (Middle)

C/O VAXART, INC.

310 UTAH AVENUE, STE 150

(Street)

SOUTH SAN FRANCISCO CALIFORNIA 94080

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Vaxart, Inc. [ VXRT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/16/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/16/2026		A		78,800(1)	A	$0	78,800	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	$0.4527	10/16/2026		A		157,400		(2)	10/16/2036	Common Stock	157,400	$0	157,400	D

Explanation of Responses:

1. Grant of shares upon vesting of restricted stock units. The shares underlying the award shall vest in equal installments on each of the first three anniversaries of the grant date, subject to the reporting person's continuing service on the Board of Directors (the "Board").

2. The shares subject to this option shall vest in equal installments on each of the first three anniversaries of the grant date, subject to the reporting person's continuing service on the Board.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Edward Berg, Attorney-in-Fact for Raquel C. Bono	10/20/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)