Surrozen (SRZN) EVP Li Yang gets 1,666 ESPP shares, now holds 18,882

Rhea-AI Filing Summary

Surrozen, Inc. executive Li Yang, Executive Vice President of Research, reported receiving 1,666 shares of common stock at $8.11 per share on June 15, 2026. These shares were acquired as a compensation-related award under the Surrozen, Inc. 2021 Employee Stock Purchase Plan in transactions exempt under Rules 16b-3(d) and 16b-3(c). After this award, Yang directly holds 18,882 common shares and also reports 351 shares held indirectly for a son and 351 shares held indirectly for a daughter.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider Li Yang

Role Exec. Vice President, Research

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,666	$8.11	$14K
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 18,882 shares (Direct, null); Common Stock — 351 shares (Indirect, By daughter)

Footnotes (1)

1. [object Object]

Key Figures

Shares awarded: 1,666 shares Award price: $8.11 per share Direct holdings after award: 18,882 shares +2 more

5 metrics

Shares awarded 1,666 shares Common stock grant on June 15, 2026

Award price $8.11 per share Price for ESPP award shares

Direct holdings after award 18,882 shares Common stock directly held by Li Yang after transaction

Indirect holdings by son 351 shares Common stock held indirectly for son

Indirect holdings by daughter 351 shares Common stock held indirectly for daughter

Key Terms

Employee Stock Purchase Plan, Rule 16b-3(d), Rule 16b-3(c), indirect ownership

4 terms

Employee Stock Purchase Plan financial

"shares acquired under the Surrozen, Inc. 2021 Employee Stock Purchase Plan"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

Rule 16b-3(d) regulatory

"transactions that were exempt under both Rule 16b-3(d) and Rule 16b-3(c)"

Rule 16b-3(d) is a narrow SEC safe-harbor that shields company insiders (officers, directors and large shareholders) from liability for short‑swing profits when their buys or sells of company stock are made under a pre-established, written plan or contract that removes the insider’s ability to time trades. For investors, this matters because it permits predictable, automated insider transactions — like scheduled sales for diversification or payroll withholding — without triggering forced disgorgement, so such planned trades are treated differently from opportunistic insider trading.

Rule 16b-3(c) regulatory

"transactions that were exempt under both Rule 16b-3(d) and Rule 16b-3(c)"

An SEC rule that lets corporate insiders avoid automatic "short‑swing" profit recovery when they buy or sell their company’s stock under a pre‑approved, written plan that meets specific conditions. For investors, it matters because it clarifies when insider trades are treated as routine, reducing legal uncertainty and helping distinguish trades made for ordinary compensation or pre‑planned reasons from those that might signal opportunistic or timely insider advantage.

indirect ownership financial

"Indirect ownership entries include 351 shares by son and 351 shares by daughter"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/16/2026 - 04:52 PM Accepted by SEC EDGAR 06/16/2026 - 04:51 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^*

Li Yang

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Exec. Vice President, Research

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026

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	06/15/2026		A(1)	V	1,666	A	$8.11	18,882	D
Common Stock								351	I	By daughter
Common Stock								351	I	By son

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/ Charles Williams, Attorney-in-Fact for Yang Li	06/16/2026
	** 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 did Surrozen (SRZN) executive Li Yang report in this Form 4?

Li Yang reported receiving 1,666 shares of Surrozen common stock at $8.11 per share. The award came through the 2021 Employee Stock Purchase Plan and is treated as a compensation-related acquisition rather than an open-market purchase.

At what price were Li Yang’s new Surrozen (SRZN) shares acquired?

The 1,666 Surrozen common shares were acquired at $8.11 per share. This price reflects the terms of the compensation-related grant under the 2021 Employee Stock Purchase Plan, not a discretionary open-market trade on an exchange.

How many Surrozen (SRZN) shares does Li Yang hold after this transaction?

Following the award, Li Yang directly holds 18,882 Surrozen common shares. The Form 4 also reports 351 shares held indirectly for a son and 351 shares held indirectly for a daughter as separate indirect ownership positions.

Is Li Yang’s Surrozen (SRZN) share acquisition an open-market purchase?

No, the 1,666-share acquisition is a compensation-related award under Surrozen’s 2021 Employee Stock Purchase Plan. A footnote states the transactions were exempt under Rule 16b-3(d) and Rule 16b-3(c), distinguishing them from open-market buying.

What is the role of Li Yang at Surrozen (SRZN)?

Li Yang serves as Executive Vice President, Research at Surrozen. The Form 4 shows equity awards and indirect family holdings, helping investors understand how this senior research executive is compensated and aligned through Surrozen common stock.