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Name of Reporting Persons

Versant Venture Capital V, L.P.

Check the Appropriate Box if a Member of a Group (See Instructions)

(a) ☐ (b) ☒(1)

SEC Use Only

Citizenship or Place of Organization

Delaware

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SC 13G/A

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1 (b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 (b)

(Amendment No. 2)

Gritstone Oncology, Inc.

(Name of Issuer)

Common Stock, par value $0.0001 per share

(Title of Class of Securities)

39868T105

(CUSIP Number)

December 31, 2021

(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)

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).


CUSIP No. 39868T105		13G

(1)

This Schedule 13G is filed by Versant Venture Capital V, L.P. (“VVC V”), Versant Affiliates Fund V, L.P. (“VAF V”), Versant Ophthalmic Affiliates Fund I, L.P. (“VOA”), Versant Venture Capital V (Canada) LP (“VVC CAN”) and Versant Vantage I, L.P. (“VV I”). Versant Ventures V, LLC (“VV V”) is the sole general partner of VVC V, VAF V and VOA. Samuel D. Colella (“Colella”), Jerel C. Davis (“Davis”), William J. Link (“Link”), Bradley Bolzon, Ph.D. (“Bolzon”), Kirk G. Nielsen (“Nielsen”), Thomas Woiwode (“Woiwode”) and Robin L. Praeger (“Praeger”) are managing directors of VV V. Versant Ventures V GP-GP (Canada), Inc. (“VV V CAN GP”) is the sole general partner of Versant Ventures V (Canada), L.P. (“VV V CAN”) and VV V CAN is the sole general partner of VVC CAN. Colella, Davis, Link, Bolzon, Praeger, Nielsen and Woiwode are directors of VV V CAN GP. Versant Vantage I GP-GP, LLC (“VV I GP-GP”) is the sole general partner of Versant Vantage I GP, L.P. (“VV I GP”, and, together with VVC V, VV V, VAF V, VOA, VVC CAN, VV V CAN, VV V CAN GP, VV I and VV I GP-GP, the “Reporting Persons”). VV I GP is the sole general partner of VV I. Bolzon, Davis, Clare Ozawa (“Ozawa”), Woiwode and Praeger are managing directors of VV I GP-GP. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2)

These shares are held by VVC V. VV V is the sole general partner of VVC V and may be deemed to have voting and dispositive power over the securities held by VVC V. Colella, Davis, Link, Bolzon, Praeger, Nielsen and Woiwode are managing directors of VV V and share voting and dispositive power over the shares held by VVC V.

(3)

This calculation is based upon 67,987,825 shares of the Issuer’s Common Stock outstanding as of October 29, 2021, as reported in the Issuer’s quarterly report on Form 10-Q for the quarter ended September 30, 2021, filed with the United States Securities and Exchange Commission on November 3, 2021 (the “Form 10-Q”).


CUSIP No. 39868T105		13G

(1)	This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2)

These shares are held by VAF V. VV V is the sole general partner of VAF V and may be deemed to have voting and dispositive power over the securities held by VAF V. Colella, Davis, Link, Bolzon, Praeger, Nielsen and Woiwode are managing directors of VV V and share voting and dispositive power over the shares held by VAF V.

(3)	This calculation is based upon 67,987,825 shares of the Issuer’s Common Stock outstanding as of October 29, 2021, as reported in the Issuer’s Form 10-Q.


CUSIP No. 39868T105		13G

(1)	This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2)

These shares are held by VOA. VV V is the sole general partner of VOA and may be deemed to have voting and dispositive power over the securities held by VOA. Colella, Davis, Link, Bolzon, Praeger, Nielsen and Woiwode are managing directors of VV V and share voting and dispositive power over the shares held by VOA.

(3)	This calculation is based upon 67,987,825 shares of the Issuer’s Common Stock outstanding as of October 29, 2021, as reported in the Issuer’s Form 10-Q.


CUSIP No. 39868T105		13G

(1)	This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2)

Includes (i) 2,723,031 shares held by VVC V, (ii) 81,908 shares held by VAF and (iii) 90,756 shares held by VOA. VV V is the sole general partner of VVC V, VAF and VOA and may be deemed to have voting and dispositive power over the securities held by VVC V, VAF and VOA. Colella, Davis, Link, Bolzon, Praeger, Nielsen and Woiwode are managing directors of VV V and share voting and dispositive power over the shares held by VVC V, VAF and VOA.

(3)	This calculation is based upon 67,987,825 shares of the Issuer’s Common Stock outstanding as of October 29, 2021, as reported in the Issuer’s Form 10-Q.


CUSIP No. 39868T105		13G

(1)	This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2)

These shares are held by VVC CAN. VV V CAN GP is the sole general partner of VV V CAN and VV V CAN is the sole general partner of VVC CAN. Each of VV CAN GP and VV V CAN share voting and dispositive power over the shares held by VVC CAN. Colella, Davis, Link, Bolzon, Praeger, Nielsen and Woiwode are directors of VV V CAN GP and share voting and dispositive power over the shares held by VVC CAN.

(3)	This calculation is based upon 67,987,825 shares of the Issuer’s Common Stock outstanding as of October 29, 2021, as reported in the Issuer’s Form 10-Q.


CUSIP No. 39868T105		13G

(1)	This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2)

(3)	This calculation is based upon 67,987,825 shares of the Issuer’s Common Stock outstanding as of October 29, 2021, as reported in the Issuer’s Form 10-Q.


CUSIP No. 39868T105		13G

(1)	This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2)

(3)	This calculation is based upon 67,987,825 shares of the Issuer’s Common Stock outstanding as of October 29, 2021, as reported in the Issuer’s Form 10-Q.


CUSIP No. 39868T105		13G

(1)	This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2)

These shares are held by VV I. VV I GP-GP is the sole general partner of VV I GP and VV I GP is the sole general partner of VV I. Each of VV I GP-GP and VV I GP share voting and dispositive power over the shares held by VV I. Bolzon, Davis, Ozawa, Woiwode and Praeger are the managing directors of VV I GP-GP and share voting and dispositive power over the shares held by VV I.

(3)	This calculation is based upon 67,987,825 shares of the Issuer’s Common Stock outstanding as of October 29, 2021, as reported in the Issuer’s Form 10-Q.


CUSIP No. 39868T105		13G

(1)	This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2)

(3)	This calculation is based upon 67,987,825 shares of the Issuer’s Common Stock outstanding as of October 29, 2021, as reported in the Issuer’s Form 10-Q.


CUSIP No. 39868T105		13G

(1)	This Schedule 13G is filed by the Reporting Persons. The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2)

(3)	This calculation is based upon 67,987,825 shares of the Issuer’s Common Stock outstanding as of October 29, 2021, as reported in the Issuer’s Form 10-Q.

Introductory Note: This Amendment No. 2 (this “Amendment”) amends and supplements the Schedule 13G originally filed by the Reporting Persons with the United States Securities and Exchange Commission (the “Commission”) on February 14, 2019, as amended by Amendment No. 1 filed with the Commission on February 16, 2021 (collectively, the “Original Schedule 13G”). Only those items that are hereby reported are amended; all other items reported in the Original Schedule 13G remain unchanged. Information given in response to each item shall be deemed incorporated by reference in all other items, as applicable. Capitalized terms not defined in this Amendment have the meanings ascribed to them in the Original Schedule 13G.

Item 4

Ownership.

The following information with respect to the ownership of the Issuer’s Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2021:

(a)

Amount beneficially owned:

See line 9 of each cover sheet.

(b)

Percent of class:

See line 11 of each cover sheet.

(c)

Number of shares as to which the person has:

Sole power to vote or to direct the vote: see line 5 of cover sheets.*

ii.

Shared power to vote or to direct the vote: see line 6 of cover sheets.*

iii.

Sole power to dispose or to direct the disposition of: see line 7 of cover sheets.*

iv.

Shared power to dispose or to direct the disposition of: see line 8 of cover sheets.*

*Each Reporting Person disclaims beneficial ownership of such shares of Common Stock, except for the shares, if any, such Reporting Person holds of record and to the extent of its pecuniary interest therein.

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.


February 11, 2022


Versant Venture Capital V, L.P.
By:		Versant Ventures V, LLC
Its:		General Partner


By:		/s/ Robin L. Praeger
		Robin L. Praeger, Managing Director

Versant Affiliates Fund V, L.P.
By:		Versant Ventures V, LLC
Its:		General Partner


By:		/s/ Robin L. Praeger
		Robin L. Praeger, Managing Director

Versant Ophthalmic Affiliates Fund I, L.P.
By:		Versant Ventures V, LLC
Its:		General Partner


By:		/s/ Robin L. Praeger
		Robin L. Praeger, Managing Director

Versant Ventures V, LLC
By:		/s/ Robin L. Praeger
		Robin L. Praeger, Managing Director

Versant Venture Capital V (Canada) LP
By:		Versant Ventures V (Canada), L.P.
Its:		General Partner


By:		Versant Ventures V GP-GP (Canada), Inc.
Its:		General Partner


By:		/s/ Robin L. Praeger
		Robin L. Praeger, Director

Versant Ventures V (Canada), L.P.
By:		Versant Ventures V GP-GP (Canada), Inc.
Its:		General Partner


By:		/s/ Robin L. Praeger
		Robin L. Praeger, Director

Versant Ventures V GP-GP (Canada), Inc.
By:		/s/ Robin L. Praeger
		Robin L. Praeger, Director

Versant Vantage I, L.P.
By:		Versant Vantage I GP, L.P.
Its:		General Partner
By:		Versant Vantage I GP-GP, LLC
Its:		General Partner
By:		/s/ Robin L. Praeger
		Robin L. Praeger, Managing Director

Versant Vantage I GP, L.P.
By:		Versant Vantage I GP-GP, LLC
Its:		General Partner
By:		/s/ Robin L. Praeger
		Robin L. Praeger, Managing Director


Versant Vantage I GP-GP, LLC
By:		/s/ Robin L. Praeger
		Robin L. Praeger, Managing Director