Surrozen: 21.4% stake attributed to Kutzkey, Svennilson

The reported ownership percentages use a 17,796,879-share base that includes 6,043,321 shares issued in the second private-placement tranche, which closed October 20, 2026.

Available on EDGAR 11/06/2026 - 04:14 PM EST Accepted by SEC EDGAR 11/06/2026 - 04:12 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Surrozen, Inc. (SRZN) ownership amendment reports that Tim Kutzkey, a member of its board of directors, and Peter Svennilson, a managing partner of The Column Group III GP, LP and managing member of TCG Opportunity III GP, LLC, may each be deemed to share voting and dispositive power over 3,813,501 common shares, or 21.4% of the class. The shares are held of record by three investment partnerships: The Column Group III, LP (1,386,122 shares), The Column Group III-A, LP (1,565,311 shares), and The Column Group Opportunity III, LP (862,068 shares); these are overlapping attributions to the same underlying shares.

The reporting persons disclaim beneficial ownership except to the extent of their pecuniary interests. Their reported positions exclude warrants that are not exercisable within 60 days because of beneficial ownership limitations.

Filing Explained

This amendment reports that 6,043,321 shares were issued in the second tranche of the private placement, which closed October 20, 2026, bringing stated shares outstanding to 17,796,879; the completed issuance increased the share count and reduced existing holders’ percentage ownership, absent offsetting changes.

Key Figures

Shared beneficial ownership attributed to Tim Kutzkey and Peter Svennilson: 3,813,501 shares; 21.4% The Column Group III, LP beneficial ownership: 1,386,122 shares The Column Group III-A, LP beneficial ownership: 1,565,311 shares +2 more

5 metrics

Shared beneficial ownership attributed to Tim Kutzkey and Peter Svennilson 3,813,501 shares; 21.4% Each may be deemed to share voting and dispositive power over the shares held by the three partnerships.

The Column Group III, LP beneficial ownership 1,386,122 shares Reported as 7.8% of the class.

The Column Group III-A, LP beneficial ownership 1,565,311 shares Reported as 8.8% of the class.

The Column Group Opportunity III, LP beneficial ownership 862,068 shares Reported as 4.8% of the class.

Shares outstanding used for reported ownership percentages 17,796,879 shares Includes 6,043,321 shares issued in the second tranche of the private placement, which closed October 20, 2026.

Key Terms

beneficial ownership limitations, dispositive power, pecuniary interest

3 terms

beneficial ownership limitations regulatory

"not exercisable within 60 days due to beneficial ownership limitations"

Beneficial ownership limitations are rules or contractual caps that restrict how much of a company’s stock an individual or entity can be treated as owning or controlling for legal, regulatory or corporate-governance purposes. They matter to investors because such limits affect voting power, reporting obligations, takeover risk and the ability to increase a stake — like an elevator weight limit or a lane divider that prevents any one car from taking over the whole road.

dispositive power regulatory

"voting, investment and dispositive power with respect to these securities"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

pecuniary interest regulatory

"except to the extent of such Reporting Person's pecuniary interest therein"

FAQ

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

How many SRZN shares are Tim Kutzkey and Peter Svennilson reported as beneficially owning?

Each may be deemed to share voting and dispositive power over 3,813,501 shares, equal to 21.4% of the class. The holdings are recorded by three investment partnerships, and the two reporting persons' attribution refers to the same underlying shares.

How many SRZN warrants are excluded from the reported ownership positions?

The reported positions exclude warrants to purchase 594,625 shares held by The Column Group III, LP, 671,518 shares held by The Column Group III-A, LP, and 431,034 shares held by The Column Group Opportunity III, LP. The warrants are not exercisable within 60 days because of beneficial ownership limitations.

What share count is used to calculate SRZN ownership percentages?

The ownership percentages are based on 17,796,879 shares outstanding. The total comprises 11,753,558 shares outstanding as of August 4, 2026, plus 6,043,321 shares issued in the second tranche of the private placement, which closed October 20, 2026.

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

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 8)

Surrozen, Inc.

(Name of Issuer)

Common Stock, $0.0001 par value per share

(Title of Class of Securities)

86889P208

(CUSIP Number)

James Evangelista, CFO
The Column Group III, LP, 1 Letterman Dr, Building D, Suite M-900
San Francisco, CA, 94129
(415) 865-2050

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

11/06/2026

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

schemaVersion:

SCHEDULE 13D

CUSIP Number(s): 86889P208

1

Name of reporting person

The Column Group III GP, LP

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 2,951,433.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 2,951,433.00

11

Aggregate amount beneficially owned by each reporting person

2,951,433.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

16.6 %

14

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person:

Consists of (i) 1,386,122 shares of Common Stock held of record by TCG III LP (as defined in Item 2(a) below) and (ii) 1,565,311 shares of Common Stock held of record by TCG III-A LP (as defined in Item 2(a) below). TCG III GP LP is the general partner of each of TCG III LP and TCG III-A LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey, a member of the Issuer's board of directors, are the managing partners of TCG III GP LP and may each be deemed to share voting, investment and dispositive power with respect to these securities. Excludes (a) warrants to purchase 594,625 shares of Common Stock held by TCG III LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations and (b) warrants to purchase 671,518 shares of Common Stock held by TCG III-A LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations. Based on 17,796,879 shares outstanding, comprised of (i) 11,753,558 shares of Common Stock outstanding as of August 4, 2026, as reported by the Issuer (as defined in Item 1(b) below) in its quarterly report on Form 10-Q filed with the Securities and Exchange Commission (the Commission) on August 6, 2026 (the Form 10-Q), plus (ii) 6,043,321 shares of Common Stock issued in the second tranche of the Issuer's private placement which closed on October 20, 2026 (the Private Placement), as disclosed to the Reporting Persons by the Issuer.

SCHEDULE 13D

CUSIP Number(s): 86889P208

1

Name of reporting person

The Column Group III, LP

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 1,386,122.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 1,386,122.00

11

Aggregate amount beneficially owned by each reporting person

1,386,122.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

7.8 %

14

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person:

Consists of 1,386,122 shares of Common Stock held of record by TCG III LP. TCG III GP LP is the general partner of TCG III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey, a member of the Issuer's board of directors, are the managing partners of TCG III GP LP and may each be deemed to share voting, investment and dispositive power with respect to these securities. Excludes warrants to purchase 594,625 shares of Common Stock held by TCG III LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations. Based on 17,796,879 shares outstanding, comprised of (i) 11,753,558 shares of Common Stock outstanding as of August 4, 2026, as reported by the Issuer in the Form 10-Q, plus (ii) 6,043,321 shares of Common Stock issued in the Private Placement, as disclosed to the Reporting Persons by the Issuer.

SCHEDULE 13D

CUSIP Number(s): 86889P208

1

Name of reporting person

The Column Group III-A, LP

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 1,565,311.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 1,565,311.00

11

Aggregate amount beneficially owned by each reporting person

1,565,311.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

8.8 %

14

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person:

Consists of 1,565,311 shares of Common Stock held of record by TCG III-A LP. TCG III GP LP is the general partner of TCG III-A LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey, a member of the Issuer's board of directors, are the managing partners of TCG III GP LP and may each be deemed to share voting, investment and dispositive power with respect to these securities. Excludes warrants to purchase 671,518 shares of Common Stock held by TCG III-A LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations. Based on 17,796,879 shares outstanding, comprised of (i) 11,753,558 shares of Common Stock outstanding as of August 4, 2026, as reported by the Issuer in the Form 10-Q, plus (ii) 6,043,321 shares of Common Stock issued in the Private Placement, as disclosed to the Reporting Persons by the Issuer.

SCHEDULE 13D

CUSIP Number(s): 86889P208

1

Name of reporting person

The Column Group Opportunity III, LP

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

WC

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 862,068.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 862,068.00

11

Aggregate amount beneficially owned by each reporting person

862,068.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

4.8 %

14

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person:

Consists of 862,068 shares of Common Stock held of record by TCG Opportunity III LP (as defined in Item 2(a)). TCG Opportunity III GP LP (as defined in Item 2(a)) is the general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LLC (as defined in Item 2(a)) is the general partner of TCG Opportunity III GP LP and the ultimate general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey, a member of the Issuer's board of directors, are the managing members of TCG Opportunity III GP LLC and may each be deemed to share voting, investment and dispositive power with respect to these securities. Excludes warrants to purchase 431,034 shares of Common Stock held by TCG Opportunity III LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations. Based on 17,796,879 shares outstanding, comprised of (i) 11,753,558 shares of Common Stock outstanding as of August 4, 2026, as reported by the Issuer in the Form 10-Q, plus (ii) 6,043,321 shares of Common Stock issued in the Private Placement, as disclosed to the Reporting Persons by the Issuer.

SCHEDULE 13D

CUSIP Number(s): 86889P208

1

Name of reporting person

The Column Group Opportunity III GP, LP

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 862,068.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 862,068.00

11

Aggregate amount beneficially owned by each reporting person

862,068.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

4.8 %

14

Type of Reporting Person (See Instructions)

PN

Comment for Type of Reporting Person:

Consists of 862,068 shares of Common Stock held of record by TCG Opportunity III LP. TCG Opportunity III GP LP is the general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LLC is the general partner of TCG Opportunity III GP LP and the ultimate general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey, a member of the Issuer's board of directors, are the managing members of TCG Opportunity III GP LLC and may each be deemed to share voting, investment and dispositive power with respect to these securities. Excludes warrants to purchase 431,034 shares of Common Stock held by TCG Opportunity III LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations. Based on 17,796,879 shares outstanding, comprised of (i) 11,753,558 shares of Common Stock outstanding as of August 4, 2026, as reported by the Issuer in the Form 10-Q, plus (ii) 6,043,321 shares of Common Stock issued in the Private Placement, as disclosed to the Reporting Persons by the Issuer.

SCHEDULE 13D

CUSIP Number(s): 86889P208

1

Name of reporting person

TCG Opportunity III GP, LLC

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 862,068.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 862,068.00

11

Aggregate amount beneficially owned by each reporting person

862,068.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

4.8 %

14

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person:

Consists of 862,068 shares of Common Stock held of record by TCG Opportunity III LP. TCG Opportunity III GP LP is the general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LLC is the general partner of TCG Opportunity III GP LP and the ultimate general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to these securities. Peter Svennilson and Tim Kutzkey, a member of the Issuer's board of directors, are the managing members of TCG Opportunity III GP LLC and may each be deemed to share voting, investment and dispositive power with respect to these securities. Excludes warrants to purchase 431,034 shares of Common Stock held by TCG Opportunity III LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations. Based on 17,796,879 shares outstanding, comprised of (i) 11,753,558 shares of Common Stock outstanding as of August 4, 2026, as reported by the Issuer in the Form 10-Q, plus (ii) 6,043,321 shares of Common Stock issued in the Private Placement, as disclosed to the Reporting Persons by the Issuer.

SCHEDULE 13D

CUSIP Number(s): 86889P208

1

Name of reporting person

Tim Kutzkey

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 3,813,501.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 3,813,501.00

11

Aggregate amount beneficially owned by each reporting person

3,813,501.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

21.4 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Consists of (i) 1,386,122 shares of Common Stock held of record by TCG III LP, (ii) 1,565,311 shares of Common Stock held of record by TCG III-A LP and (iii) 862,068 shares of Common Stock held of record by TCG Opportunity III LP. TCG III GP LP is the general partner of each of TCG III LP and TCG III-A LP and may be deemed to have voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LP is the general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to the securities held by TCG Opportunity III LP. TCG Opportunity III GP LLC is the general partner of TCG Opportunity III GP LP and the ultimate general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to the securities held by TCG Opportunity III LP. Peter Svennilson and Tim Kutzkey, a member of the Issuer's board of directors, are the managing partners of TCG III GP LP and the managing members of TCG Opportunity III GP LLC and may each be deemed to share voting, investment and dispositive power with respect to these securities. Excludes (a) warrants to purchase 594,625 shares of Common Stock held by TCG III LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations, (b) warrants to purchase 671,518 shares of Common Stock held by TCG III-A LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations and (c) warrants to purchase 431,034 shares of Common Stock held by TCG Opportunity III LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations. Based on 17,796,879 shares outstanding, comprised of (i) 11,753,558 shares of Common Stock outstanding as of August 4, 2026, as reported by the Issuer in the Form 10-Q, plus (ii) 6,043,321 shares of Common Stock issued in the Private Placement, as disclosed to the Reporting Persons by the Issuer.

SCHEDULE 13D

CUSIP Number(s): 86889P208

1

Name of reporting person

Peter Svennilson

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

AF

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

SWEDEN

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 3,813,501.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 3,813,501.00

11

Aggregate amount beneficially owned by each reporting person

3,813,501.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

21.4 %

14

Type of Reporting Person (See Instructions)

IN

Comment for Type of Reporting Person:

Consists of (i) 1,386,122 shares of Common Stock held of record by TCG III LP, (ii) 1,565,311 shares of Common Stock held of record by TCG III-A LP and (iii) 862,068 shares of Common Stock held of record by TCG Opportunity III LP. TCG III GP LP is the general partner of each of TCG III LP and TCG III-A LP and may be deemed to have voting, investment and dispositive power with respect to these securities. TCG Opportunity III GP LP is the general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to the securities held by TCG Opportunity III LP. TCG Opportunity III GP LLC is the general partner of TCG Opportunity III GP LP and the ultimate general partner of TCG Opportunity III LP and may be deemed to have voting, investment and dispositive power with respect to the securities held by TCG Opportunity III LP. Peter Svennilson and Tim Kutzkey, a member of the Issuer's board of directors, are the managing partners of TCG III GP LP and the managing members of TCG Opportunity III GP LLC and may each be deemed to share voting, investment and dispositive power with respect to these securities. Excludes (a) warrants to purchase 594,625 shares of Common Stock held by TCG III LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations, (b) warrants to purchase 671,518 shares of Common Stock held by TCG III-A LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations and (c) warrants to purchase 431,034 shares of Common Stock held by TCG Opportunity III LP which are not exercisable within 60 days of this Statement due to beneficial ownership limitations. Based on 17,796,879 shares outstanding, comprised of (i) 11,753,558 shares of Common Stock outstanding as of August 4, 2026, as reported by the Issuer in the Form 10-Q, plus (ii) 6,043,321 shares of Common Stock issued in the Private Placement, as disclosed to the Reporting Persons by the Issuer.

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock, $0.0001 par value per share
(b)	Name of Issuer: Surrozen, Inc.
(c)	Address of Issuer's Principal Executive Offices: 171 Oyster Point Blvd, Suite 400, South San Francisco, CALIFORNIA , 94080.
Item 1 Comment: Explanatory Note: This Amendment No. 8 (Amendment No. 8) supplements and amends the Schedule 13D relating to the Common Stock of the Issuer that was filed with the Commission on August 23, 2021, as amended by Amendment No. 1 that was filed with the Commission on February 13, 2023, by Amendment No. 2 that was filed with the Commission on April 8, 2024, by Amendment No. 3 that was filed with the Commission on April 17, 2024, Amendment No. 4 that was filed with the Commission on March 28, 2025, by Amendment No. 5 that was filed with the Commission on January 22, 2026, by Amendment No. 6 that was filed with the Commission on May 15, 2026 and by Amendment No. 7 that was filed with the Commission on October 22, 2026 (collectively, the Original Schedule 13D). This Amendment No. 8 is being voluntarily filed to report the expiration of certain warrants held by the Reporting Persons. Only those items that are reported are hereby amended; all other items reported in the Original Schedule 13D remain unchanged. Capitalized terms contained herein but not otherwise defined shall have the meanings ascribed to such terms in the Original Schedule 13D.
Item 2.	Identity and Background
(a)	This Statement is being filed by The Column Group III, LP (TCG III LP), The Column Group III-A, LP (TCG III-A LP), The Column Group III GP, LP (TCG III GP LP), The Column Group Opportunity III, LP (TCG Opportunity III LP), The Column Group Opportunity III GP, LP (TCG Opportunity III GP LP), TCG Opportunity III GP, LLC (TCG Opportunity III GP LLC, together with TCG III LP, TCG III-A LP, TCG III GP LP, TCG Opportunity III LP, and TCG Opportunity III GP LP, the Reporting Entities), Tim Kutzkey, a member of the Issuer's board of directors and Peter Svennilson. The Reporting Entities, Mr. Svennilson and Dr. Kutzkey are collectively referred to as the Reporting Persons. The agreement among the Reporting Persons to file jointly in accordance with the provisions of Rule 13d-1(k)(1) under the Act is attached as Exhibit 1 to Amendment No. 5. Each Reporting Person disclaims beneficial ownership of all securities reported in this Statement except to the extent of such Reporting Person's pecuniary interest therein, other than those securities reported herein as being held directly by such Reporting Person.
(b)	The address of the principal offices of each Reporting Entity 1 Letterman Drive, Building D, Suite M-900, San Francisco, CA 94129.
(c)	Each of TCG III LP, TCG III-A LP and TCG Opportunity III LP is a venture capital investment entity. TCG III GP LP is the general partner of each of TCG III LP and TCG III-A LP. TCG Opportunity III GP LP is the general partner of TCG Opportunity III LP. TCG Opportunity III GP LLC is the general partner of TCG Opportunity III GP LP and the ultimate general partner of TCG Opportunity III LP. Dr. Kutzkey and Mr. Svennilson are the managing partners of TCG III GP LP and the managing members of TCG Opportunity III GP LLC, and are each engaged through venture capital investment entities in acquiring, holding and disposing of interests in various companies for investment purposes.
(d)	During the past five years, none of the Reporting Persons have been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).
(e)	None of the Reporting Persons are, nor during the last five years have been, a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.
(f)	Each of TCG III GP LP, TCG III LP, TCG III-A LP, TCG Opportunity III LP and TCG Opportunity III GP LP is a limited partnership organized under the laws of the State of Delaware. TCG Opportunity III GP LLC is a limited company organized under the laws of the State of Delaware. Dr. Kutzkey is a citizen of the United States of America. Mr. Svennilson is a citizen of Sweden.
Item 3.	Source and Amount of Funds or Other Consideration
	The information set forth in Item 3 of the Original Schedule 13D is incorporated herein by reference.
Item 4.	Purpose of Transaction
	The information set forth in Item 4 of the Original Schedule 13D is incorporated herein by reference.
Item 5.	Interest in Securities of the Issuer
(a)	See Items 7-11 of the cover pages of this Amendment No. 8.
(b)	See Items 7-11 of the cover pages of this Amendment No. 8.
(c)	Except as reported in this Statement, none of the Reporting Persons has effected any transactions in the Issuer's securities within the past 60 days.
(d)	Under certain circumstances set forth in the limited partnership agreements of TCG III LP, TCG III-A LP and TCG Opportunity III LP, the general partner and limited partners of each of TCG III LP, TCG III-A LP and TCG Opportunity III LP may be deemed to have the right to receive dividends from, or the proceeds from, the sale of shares of the Issuer owned by such entity of which they are a partner.
(e)	Not applicable.
Item 6.	Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
	The information set forth in Item 3 and Item 4 of this Statement and the information set forth in Item 6 of the Original Schedule 13D are incorporated herein by reference.

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.

The Column Group III GP, LP

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	11/06/2026

The Column Group III, LP

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	11/06/2026

The Column Group III-A, LP

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	11/06/2026

The Column Group Opportunity III, LP

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	11/06/2026

The Column Group Opportunity III GP, LP

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	11/06/2026

TCG Opportunity III GP, LLC

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	11/06/2026

Tim Kutzkey

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	11/06/2026

Peter Svennilson

Signature:	/s/ James Evangelista
Name/Title:	James Evangelista, Attorney-in-Fact
Date:	11/06/2026