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Viking Global (ARTV) discloses 2.6M-share position, 5.4% of post-offering float

(Neutral)
(Neutral)
Form Type
SCHEDULE 13G

Rhea-AI Filing Summary

Artiva Biotherapeutics disclosure: Viking Global Investors and affiliated entities report beneficial ownership of 2,604,166 shares of Common Stock, representing 5.4% of the class based on 48,588,198 shares outstanding following the issuer's underwritten offering that closed on May 11, 2026. The disclosed stake consists of 1,822,916 shares held by Viking Global Opportunities entities and 781,250 shares held by Viking Global Opportunities Vintage IV entities; voting and disposition authority is shared across the reporting entities and two named individuals.

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Insights

Viking Global reports a passive 5.4% stake via affiliated funds.

Viking Global Investors and affiliated entities collectively report beneficial ownership of 2,604,166 shares, shown as 5.4% of the post-offering outstanding share count of 48,588,198. The holding is allocated between two principal blocks: 1,822,916 and 781,250 shares.

Ownership is reported under Rule 13d-3 with shared voting and dispositive power among the listed entities and two executive committee members. Subsequent filings may disclose changes in voting or disposition authority or any sales by the holders.

Shared control across layered investment vehicles is documented precisely.

The filing details how parent and portfolio GP entities and affiliated partnerships own and control the two share blocks, and states that two individuals (O. Andreas Halvorsen and Rose S. Shabet) may be deemed beneficial owners through shared authority. The filing cites an authorization letter for signature authority.

This structure is typical for pooled investment vehicles; governance effects depend on any future directional votes or public disclosures by the reporting persons.

Beneficial ownership 2,604,166 shares Total reported by Viking Global and affiliates
Primary block (VGOP) 1,822,916 shares Directly owned by VGOP
Vintage IV block 781,250 shares Directly owned by VGOVIV
Percent of class 5.4% Based on 48,588,198 shares outstanding following May 11, 2026 offering
Shares outstanding (post-offering) 48,588,198 shares Expected outstanding after issuer's underwritten offering closed May 11, 2026
beneficially own regulatory
"VGI beneficially owns 2,604,166 shares of Common Stock"
Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.
Rule 13d-3 regulatory
"Based on Rule 13d-3 under the Act, VGI may be deemed to beneficially own"
Rule 13d-3 defines who is treated as the beneficial owner of a company’s shares for U.S. securities disclosure rules — essentially anyone who has the power to vote or direct how shares are voted, or the power to buy or sell them, even if they don’t hold the certificates. For investors this matters because crossing certain ownership thresholds triggers public filing and disclosure obligations and signals potential control or influence, much like having the keys to a car implies you can drive it even if it’s registered to someone else.
shared dispositive power governance
"Shared Dispositive Power 2,604,166.00"

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

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FAQ

What stake does Viking Global report in ARTV?

Viking Global and affiliated entities report beneficial ownership of 2,604,166 shares, representing 5.4% of the class based on the post-offering outstanding share count of 48,588,198 reported after the May 11, 2026 offering.

How is the 2,604,166-share position allocated among Viking entities?

The filing shows 1,822,916 shares held through Viking Global Opportunities entities and 781,250 shares held through Viking Global Opportunities Vintage IV entities, totaling the reported 2,604,166 shares beneficially owned by the reporting group.

Who has voting and disposition authority over the shares?

The filing states shared voting and shared dispositive power across the named Viking entities, with O. Andreas Halvorsen and Rose S. Shabet listed as Executive Committee Members who have shared authority to vote and dispose of the shares.

On what basis is the percent ownership calculated?

Percentages are calculated based on an outstanding share count of 48,588,198 shares expected following the issuer's underwritten offering that closed on May 11, 2026, as reported in the issuer's Form 424B5 prospectus filed May 8, 2026.





04317A107

(CUSIP Number)
05/11/2026

(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)




schemaVersion:


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G




Comment for Type of Reporting Person: See Item 4


SCHEDULE 13G



VIKING GLOBAL INVESTORS LP
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of VIKING GLOBAL INVESTORS LP (1)(2)
Date:05/18/2026
Viking Global Opportunities Parent GP LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Parent GP LLC (1)(2)
Date:05/18/2026
Viking Global Opportunities GP LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities GP LLC (1)(2)
Date:05/18/2026
Viking Global Opportunities Portfolio GP LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Portfolio GP LLC (1)(2)
Date:05/18/2026
Viking Global Opportunities Illiquid Investments Sub-Master LP
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Illiquid Investments Sub-Master LP (1)(2)
Date:05/18/2026
Viking Global Opportunities Vintage IV GP LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Vintage IV GP LLC (1)(2)
Date:05/18/2026
Viking Global Opportunities Vintage IV Portfolio GP LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Vintage IV Portfolio GP LLC (1)(2)
Date:05/18/2026
Viking Global Opportunities Vintage IV (Aggregator) LP
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Vintage IV (Aggregator) LP (1)(2)
Date:05/18/2026
HALVORSEN OLE ANDREAS
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of O. Andreas Halvorsen (1)
Date:05/18/2026
Shabet Rose Sharon
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Rose S. Shabet (2)
Date:05/18/2026

Comments accompanying signature: (1) Scott M. Hendler is signing on behalf of O. Andreas Halvorsen, individually and as an Executive Committee Member of VIKING GLOBAL PARTNERS LLC, on behalf of VIKING GLOBAL INVESTORS LP, and as an Executive Committee Member of VIKING GLOBAL OPPORTUNITIES PARENT GP LLC, on behalf of itself and VIKING GLOBAL OPPORTUNITIES GP LLC, VIKING GLOBAL OPPORTUNITIES PORTFOLIO GP LLC, VIKING GLOBAL OPPORTUNITIES ILLIQUID INVESTMENTS SUB-MASTER LP, VIKING GLOBAL OPPORTUNITIES VINTAGE IV GP LLC, VIKING GLOBAL OPPORTUNITIES VINTAGE IV PORTFOLIO GP LLC and VIKING GLOBAL OPPORTUNITIES VINTAGE IV (AGGREGATOR) LP, pursuant to an authorization and designation letter dated February 9, 2021, which was previously filed with the Commission as an exhibit to a Form 13G filed by Mr. Halvorsen on February 12, 2021 (SEC File No. 005-49737). (2) Scott M. Hendler is signing on behalf of Rose S. Shabet, individually and as an Executive Committee Member of VIKING GLOBAL PARTNERS LLC, on behalf of VIKING GLOBAL INVESTORS LP, and as an Executive Committee Member of VIKING GLOBAL OPPORTUNITIES PARENT GP LLC, on behalf of itself and VIKING GLOBAL OPPORTUNITIES GP LLC, VIKING GLOBAL OPPORTUNITIES PORTFOLIO GP LLC, VIKING GLOBAL OPPORTUNITIES ILLIQUID INVESTMENTS SUB-MASTER LP, VIKING GLOBAL OPPORTUNITIES VINTAGE IV GP LLC, VIKING GLOBAL OPPORTUNITIES VINTAGE IV PORTFOLIO GP LLC and VIKING GLOBAL OPPORTUNITIES VINTAGE IV (AGGREGATOR) LP, pursuant to an authorization and designation letter dated February 9, 2021, which was previously filed with the Commission as an exhibit to a Form 13G filed by Mr. Halvorsen on February 12, 2021 (SEC File No. 005-49737).
Exhibit Information

EXHIBIT A - JOINT FILING AGREEMENT