Surrozen (NASDAQ: SRZN) CEO exercises RSUs, sells shares to cover taxes

Rhea-AI Filing Summary

Surrozen, Inc. Chief Executive Officer Craig C. Parker reported routine equity compensation activity and related tax sales. On May 1, 2026, he exercised 12,500 Restricted Stock Units, each converting into one share of common stock at $0.00, increasing his direct holdings to 21,077 shares.

On May 4, 2026, 4,524 common shares were sold at a weighted average price of $33.3328 per share to cover withholding taxes upon RSU vesting in transactions initiated by the company on his behalf. After these transactions, Parker directly held 16,553 common shares. A remaining RSU award of 12,500 units is scheduled to vest in two equal installments on May 1, 2026 and May 1, 2027.

Insights

Equity compensation and insider-transactions analyst

Routine RSU vesting and tax-related share sale with no strong trading signal.

The CEO of Surrozen, Inc. received 12,500 shares via RSU vesting at $0.00, then had 4,524 shares sold at a weighted average of $33.3328 per share. Footnotes state the sale was to cover withholding taxes and was initiated by the issuer.

This pattern—RSU conversion followed by tax-withholding sales—is typical for executive compensation and does not represent a discretionary open-market sell decision. Parker’s direct holdings after the transactions were 16,553 shares, and 12,500 RSUs remain scheduled to vest on May 1, 2026 and May 1, 2027. Overall impact on the investment thesis appears neutral.

Insider Trade Summary

Net Seller: 4,524 shares ($150,798)

Net Sell 3 txns

Insider Parker Craig C

Role Chief Executive Officer

Sold 4,524 shs ($151K)

Type	Security	Shares	Price	Value
Sale	Common Stock	4,524	$33.3328	$151K
Exercise	Restricted Stock Unit	12,500	$0.00	--
Exercise	Common Stock	12,500	$0.00	--

Holdings After Transaction: Common Stock — 16,553 shares (Direct, null); Restricted Stock Unit — 12,500 shares (Direct, null)

Footnotes (1)

1. Each restricted stock unit, or RSU, represents a contingent right to receive one share of the Issuer's common stock. The shares were sold to cover withholding taxes upon vesting of RSUs in transactions that were initiated by the Issuer on the reporting person's behalf. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.04 to $33.63, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range. These RSUs vest in two equal installments on May 1, 2026 and May 1, 2027.

Key Figures

Shares sold for taxes: 4,524 shares Weighted average sale price: $33.3328 per share RSU shares delivered: 12,500 shares +3 more

6 metrics

Shares sold for taxes 4,524 shares Common Stock sold on May 4, 2026 to cover withholding taxes

Weighted average sale price $33.3328 per share Price for 4,524 common shares sold on May 4, 2026

RSU shares delivered 12,500 shares Common shares received from RSU vesting on May 1, 2026 at $0.00

Holdings after transactions 16,553 shares Direct common shares held by CEO after May 4, 2026 sale

Remaining RSU award 12,500 RSUs RSUs vesting in equal installments on May 1, 2026 and May 1, 2027

RSU conversion price $0.00 per share Exercise/conversion price for 12,500 Restricted Stock Units

Key Terms

Restricted Stock Unit, weighted average price, withholding taxes, contingent right, +1 more

5 terms

Restricted Stock Unit financial

"Each restricted stock unit, or RSU, represents a contingent right to receive one share"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

withholding taxes financial

"The shares were sold to cover withholding taxes upon vesting of RSUs"

Withholding taxes are amounts a payer or government takes out of payments — such as wages, interest, or dividends — before the recipient gets the money, functioning like a cashier keeping part of a bill to pay taxes on your behalf. For investors this matters because it reduces the cash they actually receive, affects net returns and yield calculations, and may require additional paperwork or treaty claims to recover or offset the withheld amount against final tax bills.

contingent right financial

"represents a contingent right to receive one share of the Issuer's common stock"

derivative security financial

"transaction_code_description": "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

Form 4 Insider Transactions: What Each Field Means →

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^*

Parker Craig C

(Last) (First) (Middle)

C/O SURROZEN, INC.

171 OYSTER POINT BLVD., SUITE 400

(Street)

SOUTH SAN FRANCISCO CALIFORNIA 94080

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Surrozen, Inc./DE [ SRZN ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/01/2026

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	05/01/2026		M		12,500	A	(1)	21,077	D
Common Stock	05/04/2026		S		4,524	D	$33.3328(2)	16,553	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
Restricted Stock Unit	(1)	05/01/2026		M			12,500	(3)	(3)	Common Stock	12,500	$0	12,500	D

Explanation of Responses:

1. Each restricted stock unit, or RSU, represents a contingent right to receive one share of the Issuer's common stock.

2. The shares were sold to cover withholding taxes upon vesting of RSUs in transactions that were initiated by the Issuer on the reporting person's behalf. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.04 to $33.63, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

3. These RSUs vest in two equal installments on May 1, 2026 and May 1, 2027.

	/s/ Charles Williams, Attorney-in-Fact for Craig C. Parker	05/05/2026
	** 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)

FAQ

What insider transactions did Surrozen (SRZN) disclose for CEO Craig C. Parker?

Surrozen CEO Craig C. Parker received 12,500 common shares through RSU vesting, then 4,524 shares were sold at a weighted average of $33.3328 per share to cover withholding taxes. After these transactions, he directly held 16,553 Surrozen common shares.

Was the Surrozen (SRZN) CEO’s recent share sale a discretionary open-market trade?

No. Footnotes state the 4,524 Surrozen shares were sold solely to cover withholding taxes upon RSU vesting, in transactions initiated by the issuer on Parker’s behalf. This indicates a routine tax-related disposition, not a discretionary open-market sale decision.

How many Surrozen (SRZN) shares did the CEO acquire from RSU vesting?

Craig C. Parker acquired 12,500 Surrozen common shares when Restricted Stock Units vested at a conversion price of $0.00 per share. Each RSU represented a contingent right to one common share, increasing his direct holdings before the tax-related sale transactions.

What are Craig C. Parker’s Surrozen (SRZN) share holdings after these transactions?

After the RSU vesting and tax-related sale, Craig C. Parker directly held 16,553 Surrozen common shares. He also has an RSU award of 12,500 units that is scheduled to vest in two equal installments on May 1, 2026 and May 1, 2027.

At what price were the Surrozen (SRZN) CEO’s shares sold to cover taxes?

The 4,524 Surrozen shares were sold at a weighted average price of $33.3328 per share. Footnotes note multiple transactions occurred within a price range from $33.04 to $33.63, inclusive, with full breakdowns available on request from relevant parties.

How do the remaining Surrozen (SRZN) RSUs vest for the CEO?

A remaining grant of 12,500 Restricted Stock Units for the Surrozen CEO is scheduled to vest in two equal installments. According to the disclosure, these installments occur on May 1, 2026 and May 1, 2027, providing additional potential future share deliveries.