SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)*

ARTIVA BIOTHERAPEUTICS, INC.

(Name of Issuer)

Common stock, par value $0.0001

(Title of Class of Securities)

(CUSIP Number)

06/30/2026

(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.

Names of Reporting Persons

5AM Ventures VI, L.P.

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:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,171,250.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,171,250.00

Aggregate Amount Beneficially Owned by Each Reporting Person

1,171,250.00

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

Percent of class represented by amount in row (9)

2.4 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP No.

Names of Reporting Persons

5AM Partners VI, LLC

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:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,171,250.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,171,250.00

Aggregate Amount Beneficially Owned by Each Reporting Person

1,171,250.00

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

Percent of class represented by amount in row (9)

2.4 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP No.

Names of Reporting Persons

5AM Opportunities II, L.P.

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:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,182,054.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,182,054.00

Aggregate Amount Beneficially Owned by Each Reporting Person

1,182,054.00

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

Percent of class represented by amount in row (9)

2.4 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP No.

Names of Reporting Persons

5AM Opportunities II (GP), LLC

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:

5	Sole Voting Power 0.00
6	Shared Voting Power 1,182,054.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,182,054.00

Aggregate Amount Beneficially Owned by Each Reporting Person

1,182,054.00

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

Percent of class represented by amount in row (9)

2.4 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP No.

Names of Reporting Persons

Andrew J. Schwab

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

(a)
(b)

Sec Use Only

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,353,304.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,353,304.00

Aggregate Amount Beneficially Owned by Each Reporting Person

2,353,304.00

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

Percent of class represented by amount in row (9)

4.8 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP No.

Names of Reporting Persons

Kush Parmar

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

(a)
(b)

Sec Use Only

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 2,353,304.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,353,304.00

Aggregate Amount Beneficially Owned by Each Reporting Person

2,353,304.00

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

Percent of class represented by amount in row (9)

4.8 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

Item 1.

(a)

Name of issuer:

ARTIVA BIOTHERAPEUTICS, INC.

(b)

Address of issuer's principal executive offices:

5505 Morehouse Drive, Suite 100, San Diego, CA, 92121.

Item 2.

(a)

Name of person filing:

The names of the persons filing this report (collectively, the "Reporting Persons") are: 5AM Ventures VI, L.P. ("Ventures VI") 5AM Partners VI, LLC ("Partners VI") 5AM Opportunities II, L.P. ("Opps II") 5AM Opportunities II (GP), LLC ("Opps II GP") Andrew J. Schwab ("Schwab") Kush Parmar ("Dr. Parmar") The Reporting Persons expressly disclaim status as a "group" for purposes of this Schedule 13G.

(b)

Address or principal business office or, if none, residence:

c/o 5AM Ventures 4 Embarcadero Center, Suite 3110 San Francisco, CA 94111

(c)

Citizenship:

Ventures VI Delaware Partners VI Delaware Opps II Delaware Opps II GP Delaware Schwab United States Parmar United States

(d)

Title of class of securities:

Common stock, par value $0.0001

(e)

CUSIP No.:

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:

Row 9 of each Reporting Person's cover page to this Schedule 13G sets forth the aggregate number of securities of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference. The Reporting Persons' ownership of the Issuer's securities consists of (i) 1,171,250 shares of common stock held directly by Ventures VI; and (ii) 1,182,054 shares of common stock held directly by Opps II. Partners VI is the sole general partner of Ventures VI and Schwab and Dr. Parmar are the managing members of Partners VI. Each of Partners VI, Schwab and Dr. Parmar shares voting and dispositive power over the securities held by Ventures VI. Opps II GP is the sole general partner of Opps II and Schwab and Dr. Parmar are the managing members of Opps II GP. Each of Opps II GP, Schwab and Dr. Parmar shares voting and dispositive power over the securities held by Opps II.

(b)

Percent of class:

Row 11 of each Reporting Person's cover page to this Schedule 13G sets forth the percentages of the securities of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference. The percentage set forth in each row 11 is based upon 24,716,672 shares of the Issuer's common stock outstanding as of April 30, 2026, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (the "SEC") on May 8, 2026, plus 23,871,526 shares of common stock issued in connection with a public offering that closed on May 11, 2026, as disclosed in the Issuer's prospectus supplement dated May 8, 2026, filed with the SEC on May 8, 2026. %

(c)

Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

Row 5 of each Reporting Person's cover page to this Schedule 13G sets forth the sole power to vote or to direct the vote of securities of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference.

(ii) Shared power to vote or to direct the vote:

Row 6 of each Reporting Person's cover page to this Schedule 13G sets forth the shared power to vote or to direct the vote of securities of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference.

(iii) Sole power to dispose or to direct the disposition of:

Row 7 of each Reporting Person's cover page to this Schedule 13G sets forth the sole power to dispose or to direct the disposition of securities of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference.

(iv) Shared power to dispose or to direct the disposition of:

Row 8 of each Reporting Person's cover page to this Schedule 13G sets forth the shared power to dispose or to direct the disposition of securities of the Issuer beneficially owned by such Reporting Person as of June 30, 2026 and is incorporated by reference.

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 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.

5AM Ventures VI, L.P.

Signature:	/s/ Andrew J. Schwab
Name/Title:	By 5AM Partners VI, LLC, its General Partner, By Andrew J. Schwab, Managing Member
Date:	08/10/2026

5AM Partners VI, LLC

Signature:	/s/ Andrew J. Schwab
Name/Title:	By Andrew J. Schwab, Managing Member
Date:	08/10/2026

5AM Opportunities II, L.P.

Signature:	/s/ Andrew J. Schwab
Name/Title:	By 5AM Opportunities II (GP), LLC, its General Partner, By Andrew J. Schwab, Managing Member
Date:	08/10/2026

5AM Opportunities II (GP), LLC

Signature:	/s/ Andrew J. Schwab
Name/Title:	By Andrew J. Schwab, Managing Member
Date:	08/10/2026

Andrew J. Schwab

Signature:	/s/ Andrew J. Schwab
Name/Title:	Andrew J. Schwab
Date:	08/10/2026

Kush Parmar

Signature:	/s/ Kush Parmar
Name/Title:	Kush Parmar
Date:	08/10/2026

Exhibit Information

Exhibit 99.1 Joint Filing Agreement (incorporated by reference to Exhibit A to the Reporting Persons' Schedule 13G filed with the SEC on August 1, 2024).