Surrozen (SRZN) holders buy 48,997 shares in open-market trades

Rhea-AI Filing Summary

Surrozen, Inc. (SRZN) reported insider buying by affiliated investment funds. TCG Crossover Fund II, L.P. and TCG Crossover Fund III, L.P., both 10% holders, executed a series of open-market purchases of Common Stock on March 12–16, 2026, totaling 48,997 shares according to the filing’s transaction summary.

The trades were made at prices between 24.8769 and 24.9857 per share and are reported as indirect holdings. TCG Crossover GP II, LLC and TCG Crossover GP III, LLC act as general partners to the funds, and Chen Yu may be deemed to share voting, investment and dispositive power over these securities.

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

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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^*

TCG Crossover GP II, LLC

(Last) (First) (Middle)

245 LYTTON AVE., SUITE 350

(Street)

PALO ALTO CA 94301

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
03/12/2026

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

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

	Form filed by One Reporting Person
X	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	03/12/2026		P		6,187	A	$24.9851	657,301	I	See footnote(1)
Common Stock	03/12/2026		P		6,187	A	$24.9851	657,299	I	See footnote(2)
Common Stock	03/13/2026		P		17,717	A	$24.8769	675,018	I	See footnote(1)
Common Stock	03/13/2026		P		17,716	A	$24.8769	675,015	I	See footnote(2)
Common Stock	03/16/2026		P		595	A	$24.9857	675,613	I	See footnote(1)
Common Stock	03/16/2026		P		595	A	$24.9857	675,610	I	See footnote(2)

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

1. Name and Address of Reporting Person^*

TCG Crossover GP II, LLC

(Last) (First) (Middle)

245 LYTTON AVE., SUITE 350

(Street)

PALO ALTO CA 94301

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

TCG Crossover Fund II, L.P.

(Last) (First) (Middle)

245 LYTTON AVE., SUITE 350

(Street)

PALO ALTO CA 94301

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

TCG Crossover GP III, LLC

(Last) (First) (Middle)

245 LYTTON AVE., SUITE 350

(Street)

PALO ALTO CA 94301

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

1. Name and Address of Reporting Person^*

TCG Crossover Fund III, L.P.

(Last) (First) (Middle)

245 LYTTON AVE., SUITE 350

(Street)

PALO ALTO CA 94301

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

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

Explanation of Responses:

1. These securities are held of record by TCG Crossover Fund II, L.P. (TCG Crossover II). TCG Crossover GP II, LLC (TCG Crossover GP II) is the general partner of TCG Crossover II and may be deemed to have voting, investment, and dispositive power with respect to these securities. Chen Yu is the sole managing member of TCG Crossover GP II and may be deemed to share voting, investment and dispositive power with respect to these securities.

2. These securities are held of record by TCG Crossover Fund III, L.P. (TCG Crossover III). TCG Crossover GP III, LLC (TCG Crossover GP III) is the general partner of TCG Crossover III and may be deemed to have voting, investment, and dispositive power with respect to these securities. Chen Yu is the sole managing member of TCG Crossover GP III and may be deemed to share voting, investment and dispositive power with respect to these securities.

	/s/ TCG Crossover GP II, LLC /s/ Craig Skaling, Authorized Signatory	03/16/2026
	/s/ TCG Crossover Fund II, L.P. /s/ Craig Skaling, Authorized Signatory	03/16/2026
	/s/ TCG Crossover GP III, LLC /s/ Craig Skaling, Authorized Signatory	03/16/2026
	/s/ TCG Crossover Fund III, L.P. /s/ Craig Skaling, Authorized Signatory	03/16/2026
	/s/ Craig Skaling, as Attorney-in-Fact for Chen Yu	03/16/2026
	** Signature of Reporting Person	Date
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FAQ

What insider activity did Surrozen (SRZN) report in this Form 4?

Surrozen reported net insider buying. TCG Crossover Fund II, L.P. and TCG Crossover Fund III, L.P. purchased a total of 48,997 shares of Surrozen Common Stock in open-market transactions over March 12–16, 2026, as reflected in the transaction summary.

Who are the reporting persons in Surrozen (SRZN)’s latest Form 4 filing?

The reporting persons are TCG-affiliated investment entities. They include TCG Crossover Fund II, L.P., TCG Crossover Fund III, L.P., and their general partners TCG Crossover GP II, LLC and TCG Crossover GP III, LLC, each identified as a ten percent owner of Surrozen.

How many Surrozen (SRZN) shares were bought and at what prices?

The filing shows 48,997 shares purchased. These open-market buys occurred in several tranches, with reported per-share prices ranging from 24.8769 to 24.9857 dollars, based on individual transaction lines for March 12, 13 and 16, 2026.

Are the Surrozen (SRZN) insider holdings direct or indirect in this Form 4?

The reported holdings are indirect. All transactions are coded as indirect ownership, with the Common Stock held of record by TCG Crossover Fund II, L.P. and TCG Crossover Fund III, L.P., as described in the ownership footnotes of the filing.

What role does Chen Yu have in the Surrozen (SRZN) insider holdings?

Chen Yu is linked through managing roles in the general partners. The footnotes state Chen Yu is the sole managing member of TCG Crossover GP II, LLC and TCG Crossover GP III, LLC and may be deemed to share voting, investment and dispositive power over the funds’ Surrozen shares.

Were there any Surrozen (SRZN) insider sales or derivative exercises reported?

No sales or derivative exercises appear in this data. The transaction summary lists six open-market purchase transactions, 48,997 net buy shares, and zero entries for sales, derivative exercises, gifts, tax withholding or restructuring transactions.