Surrozen, Inc. CEO Craig Parker buys 1,553 company shares

Surrozen, Inc. reported an insider purchase by Chief Executive Officer and director Craig C. Parker.

Rhea-AI Filing Summary

Surrozen, Inc. reported an insider purchase by Chief Executive Officer and director Craig C. Parker. On 12/15/2025 he acquired 1,553 shares of Surrozen common stock at $8.11 per share, in a transaction made under the Surrozen, Inc. 2021 Employee Stock Purchase Plan and noted as exempt under Rule 16b-3(d) and Rule 16b-3(c). After this transaction, he beneficially owns 8,577 shares held directly.

Insider Trade Summary

Grant/Award: 1,553 shares

Grant/Award 1 txn

Insider Parker Craig C

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,553	$8.11	$13K

Holdings After Transaction: Common Stock — 8,577 shares (Direct)

Footnotes (1)

1. F1. This reporting person is voluntarily reporting these shares acquired under the Surrozen, Inc. 2021 Employee Stock Purchase Plan in transactions that were exempt under both Rule 16b-3(d) and Rule 16b-3(c).

FAQ

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

What insider transaction did Surrozen (SRZN) disclose in this filing?

Surrozen, Inc. disclosed that Chief Executive Officer and director Craig C. Parker acquired 1,553 shares of Surrozen common stock on 12/15/2025.

At what price were the Surrozen (SRZN) shares acquired by the CEO?

Craig C. Parker acquired the 1,553 shares of Surrozen common stock at a price of $8.11 per share.

How many Surrozen (SRZN) shares does the CEO own after this transaction?

Following the reported purchase, Craig C. Parker beneficially owns 8,577 shares of Surrozen common stock, held directly.

Under what plan were the Surrozen (SRZN) shares acquired?

The 1,553 shares were acquired under the Surrozen, Inc. 2021 Employee Stock Purchase Plan in transactions described as exempt under Rule 16b-3(d) and Rule 16b-3(c).

What roles does the reporting person hold at Surrozen (SRZN)?

The reporting person, Craig C. Parker, is both a Director and the Chief Executive Officer of Surrozen, Inc.

Is this Surrozen (SRZN) insider report filed by one or multiple persons?

This report is indicated as a Form filed by one reporting person, covering only the holdings and transactions of Craig C. Parker.

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

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Accepted by SEC EDGAR 12/16/2025 - 07:10 PM 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^*

Parker Craig C

(Last) (First) (Middle)

C/O SURROZEN, INC.

171 OYSTER POINT BLVD., SUITE 400

(Street)

SOUTH SAN FRANCISCO CA 94080

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
12/15/2025

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

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

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

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	12/15/2025		A(1)		1,553	A	$8.11	8,577	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. This reporting person is voluntarily reporting these shares acquired under the Surrozen, Inc. 2021 Employee Stock Purchase Plan in transactions that were exempt under both Rule 16b-3(d) and Rule 16b-3(c).

	/s/ Craig C Parker	12/16/2025
	** 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.