Schedule 13G: Driehaus Discloses Sub‑1% Stake in Surrozen

Rhea-AI Filing Summary

Driehaus Capital Management LLC reports beneficial ownership of 67,566 shares of Surrozen, Inc. common stock, equal to 0.79% of the class. The filing shows Driehaus has shared voting and shared dispositive power over all 67,566 shares and reports no sole voting or dispositive power. The filer is identified as an investment adviser (IA). Item 5 is marked for ownership of 5 percent or less of a class, and Items 6-9 indicate no holdings on behalf of others, no parent/subsidiary acquisition, and no group affiliation.

Positive

• Beneficial ownership disclosed: 67,566 shares representing 0.79% of Surrozen common stock
• Filer classified as an investment adviser (IA): disclosure made under Schedule 13G

Negative

• None.

Insights

Financial Analyst

TL;DR: Small, passive holding disclosed; minimal market or control impact.

The filing documents a sub-1% stake of 67,566 shares (0.79%), with all rights recorded as shared voting and shared dispositive power and no sole control. As an IA-classified filer, this appears as a routine disclosure of a passive position under Schedule 13G. There are no indications in the filing of aggregated group ownership, holdings on behalf of third parties, or any change in control intent.

Corporate Governance Expert

TL;DR: Ownership is disclosed but does not signal governance influence.

The statement confirms Driehaus holds shared voting rights only over a small percentage of common stock and reports no sole dispositive authority. Item entries explicitly mark ownership as 5% or less and indicate no group affiliations or subsidiary acquisitions. From a governance standpoint, the filing documents transparency without presenting any material shift in board or shareholder control dynamics.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Surrozen, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

86889P208

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 86889P208

1

Names of Reporting Persons

DRIEHAUS CAPITAL MANAGEMENT LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 67,566.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 67,566.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

67,566.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

0.79 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Surrozen, Inc.
(b)	Address of issuer's principal executive offices: 171 Oyster Point Blvd, Suite 400, South San Francisco, California, 94080
Item 2.
(a)	Name of person filing: Driehaus Capital Management LLC
(b)	Address or principal business office or, if none, residence: 25 East Erie Street Chicago, Illinois 60611
(c)	Citizenship: USA
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 86889P208
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 67566
(b)	Percent of class: 0.79 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 67566
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 67566
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

DRIEHAUS CAPITAL MANAGEMENT LLC

Signature:	Janet McWilliams
Name/Title:	Janet McWilliams/General Counsel
Date:	08/14/2025

FAQ

How many Surrozen (SRZNW) shares does Driehaus own?

Driehaus Capital Management reports beneficial ownership of 67,566 shares of Surrozen common stock.

What percentage of Surrozen (SRZNW) does this stake represent?

The filing states the position represents 0.79% of the class of common stock.

Does Driehaus have sole voting or dispositive power over these shares?

No. The filing reports 0 shares with sole voting or dispositive power and 67,566 shares with shared voting and dispositive power.

Is this stake held on behalf of another person or part of a group?

Items in the filing indicate Not Applicable for holdings on behalf of another person and Not Applicable for group affiliations.

Under what filing classification was this position reported?

The position is reported on Schedule 13G and the filer is identified as an investment adviser (IA).