STAAR Surgical exec reports RSU tax share withholding

STAAR Surgical's Interim Co-CEO and President & COO Warren Foust reported a tax-related share disposition linked to previously granted restricted stock units.

Rhea-AI Filing Summary

STAAR Surgical's Interim Co-CEO and President & COO Warren Foust reported a tax-related share disposition linked to previously granted restricted stock units. On May 8, 2026, 3,448 shares of common stock were withheld at $26.69 per share to satisfy tax obligations when RSUs vested. These RSUs were part of a grant made on May 8, 2023, vesting in three equal installments of 6,777 shares on May 8 of 2024, 2025, and 2026. After this tax-withholding event, Foust directly held 66,917 shares of STAAR Surgical common stock.

Insider Trade Summary

Exercise Price or Tax Liability: 3,448 shares

Exercise Price or Tax Liability 1 txn

Insider Foust Warren

Role Interim Co-CEO and Pres. & COO

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	3,448	$26.69	$92K

Holdings After Transaction: Common Stock — 66,917 shares (Direct)

Footnotes (1)

1. F1. Reflects restricted stock units granted to the Reporting Person on May 8, 2023. These RSUs vested as to 1/3 (6,777 shares) on May 8, 2024, 1/3 (6,777 shares) on May 8, 2025, and 1/3 (6,777 shares) on May 8, 2026. On May 8, 2026, 3,448 shares were withheld to satisfy taxes.

Key Figures

Tax-withheld shares: 3,448 shares Withholding price: $26.69 per share Shares held after transaction: 66,917 shares +2 more

5 metrics

Tax-withheld shares 3,448 shares Withheld on May 8, 2026 to satisfy taxes

Withholding price $26.69 per share Value used for tax-withholding disposition on May 8, 2026

Shares held after transaction 66,917 shares Direct holdings following the May 8, 2026 tax withholding

RSU vesting tranche size 6,777 shares Each of three RSU vesting installments on May 8, 2024, 2025, 2026

RSU grant date May 8, 2023 Grant date of restricted stock units underlying the transaction

Key Terms

restricted stock units, tax-withholding disposition, transaction code F, vested

4 terms

restricted stock units financial

"Reflects restricted stock units granted to the Reporting Person on May 8, 2023."

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.

tax-withholding disposition financial

"transaction_action: tax-withholding disposition associated with RSU vesting."

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

transaction code F financial

"transaction_code_description: Payment of exercise price or tax liability by delivering securities."

vested financial

"These RSUs vested as to 1/3 (6,777 shares) on May 8, 2024, 1/3 (6,777 shares) on May 8, 2025, and 1/3 (6,777 shares) on May 8, 2026."

FAQ

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

What insider transaction did STAAR Surgical (STAA) report for Warren Foust?

STAAR Surgical reported that Interim Co-CEO and President & COO Warren Foust had 3,448 shares of common stock withheld to cover taxes. This tax-withholding disposition occurred on May 8, 2026, tied to the vesting of previously granted restricted stock units.

Was the STAAR Surgical (STAA) Form 4 a market sale by Warren Foust?

No, the Form 4 for STAAR Surgical shows a tax-withholding disposition, not an open-market sale. 3,448 shares were withheld by the issuer to satisfy tax liabilities on vesting RSUs, a routine compensation-related event rather than a discretionary share sale.

How many STAAR Surgical (STAA) shares does Warren Foust hold after this Form 4?

Following the reported tax-withholding transaction, Interim Co-CEO Warren Foust directly holds 66,917 shares of STAAR Surgical common stock. This figure reflects his position after 3,448 shares were withheld to cover taxes on vesting restricted stock units.

What RSU grant underlies Warren Foust’s STAAR Surgical (STAA) Form 4 filing?

The filing references restricted stock units granted on May 8, 2023, totaling three equal tranches of 6,777 shares. These tranches vested on May 8 of 2024, 2025, and 2026, with the 2026 vesting triggering the reported tax-withholding.

What does transaction code F mean in the STAAR Surgical (STAA) Form 4?

Transaction code F indicates a payment of tax liability by delivering securities. For STAAR Surgical, it shows 3,448 shares of Warren Foust’s RSU-related shares were withheld by the company on May 8, 2026, to cover associated tax obligations.

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

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Accepted by SEC EDGAR 05/12/2026 - 04:01 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^*

Foust Warren

(Last) (First) (Middle)

25510 COMMERCENTRE DRIVE

(Street)

LAKE FOREST CALIFORNIA 92630

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
STAAR SURGICAL CO [ STAA ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Interim Co-CEO and Pres. & COO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/08/2026

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(1)	05/08/2026		F		3,448	D	$26.69	66,917	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

Explanation of Responses:

1. Reflects restricted stock units granted to the Reporting Person on May 8, 2023. These RSUs vested as to 1/3 (6,777 shares) on May 8, 2024, 1/3 (6,777 shares) on May 8, 2025, and 1/3 (6,777 shares) on May 8, 2026. On May 8, 2026, 3,448 shares were withheld to satisfy taxes.

	/s/ Warren Foust	05/12/2026
	** 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)