The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

NAMES OF REPORTING PERSONS

Gilead Sciences, Inc.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)

(a) ☐  (b) ☐

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF SHARES  BENEFICIALLY  OWNED BY EACH REPORTING PERSON

WITH

SOLE VOTING POWER

16,635,286

SHARED VOTING POWER

0

SOLE DISPOSITIVE POWER

16,635,286

SHARED DISPOSITIVE POWER

0

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

16,635,286

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES

☐

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

14.6%⁽¹⁾

TYPE OF REPORTING PERSON*

CO

Percentage based on 114,063,336 shares of Common Stock outstanding as of October 27, 2023, as disclosed in the Issuer’s Quarterly Report on Form 10-Q (“Form 10-Q”) filed with the U.S. Securities and Exchange Commission (“SEC”) on November 2, 2023.

Name of Issuer:

Address of Issuer’s Principal Executive Offices:

Name of Person Filing:

Address of Principal Business Office or, if none, Residence:

Citizenship:

Title of Class of Securities:

CUSIP No.:

If this statement is filed pursuant to Rules 13d-1(b), or 13d-2(b), check whether the person filing is a:

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8);

An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

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);

A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);

Group, in accordance with § 240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:            

Ownership:

Amount beneficially owned: 16,635,286

Percent of class: 14.6%⁽²⁾

Number of shares as to which such person has:

Sole power to vote or direct the vote: 16,635,286

Shared power to vote or direct the vote: 0

Sole power to dispose or direct the disposition: 16,635,286

Shared power to dispose or direct the disposition: 0

Percentage based on 114,063,336 shares of Common Stock outstanding as of October 27, 2023, as disclosed in the Issuer’s Form 10-Q filed with the SEC on November 2, 2023.

Ownership of Five Percent or Less of a Class:

Ownership of More Than Five Percent on Behalf of Another Person:

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person:

Identification and Classification of Members of the Group:

Notice of Dissolution of Group:

Certification: