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Viking Global holds 1.46M shares in Inhibrx (INBX); amendment removes one reporter

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Form Type
SCHEDULE 13G/A

Rhea-AI Filing Summary

Inhibrx Biosciences, Inc. Schedule 13G/A amendment reports beneficial ownership by Viking Global affiliated entities and related persons and removes David C. Ott as a reporting person effective March 31, 2026. The filing lists aggregate beneficial ownership positions and discloses a Warrant exercise limiter (the "Blocker").

The filing states that Viking Global Investors LP and affiliated entities may be deemed to beneficially own up to 1,461,633 shares (representing 9.99% of the class) based on 14,607,036 shares outstanding as of March 11, 2026, and details component holdings among VGOP, KAVRA 104, VGOD and related GPs.

Positive

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Insights

Large passive holder structure and ownership caps are clearly described.

The filing documents that Viking Global affiliates collectively beneficially own 1,461,633 shares, equal to 9.99% of the outstanding common stock as of March 11, 2026. It explains how ownership is allocated across funds and GPs and attributes voting and dispositive power across the related entities.

The disclosure also explains the Warrant Blocker that prevents exercise leading to ownership above 9.99% (adjustable to a max of 19.99% after notice and a 61-day delay), which directly limits near-term conversion-driven dilution. Subsequent filings will show any changes in the Blocker election.

Amendment removes a reporting person and clarifies entity attributions under Rule 13d-3.

The amendment states that David C. Ott retired effective March 31, 2026 and is no longer a beneficial owner; Scott M. Hendler executed the filing on behalf of the reporting persons. The filing attributes beneficial ownership to entities under Rule 13d-3 with explicit shared voting and dispositive power figures.

Significant compliance items include the explicit citation of the 14,607,036 shares outstanding base and the Blocker mechanics; these are the key reference points for percent calculations in future 13G/A or 13D filings.

Aggregate beneficial ownership 1,461,633 shares Beneficially owned by Viking Global affiliates
Shares outstanding 14,607,036 shares Outstanding as of March 11, 2026
VGOP direct holdings 1,267,823 shares Shares directly owned by VGOP
KAVRA 104 holdings 67,018 shares Shares directly owned by KAVRA 104
VGOD holdings 102,864 shares Shares directly owned by VGOD
Warrants exercisable (VGOP) 259,692 warrants Warrants held directly by VGOP with $0.0001 exercise price
Warrants counted as purchasable subject to Blocker 23,928 shares Shares VGOP currently has the right to purchase upon exercise, subject to the Blocker
Blocker cap 9.99% Default maximum beneficial ownership via exercise without waiver
Blocker regulatory
"terms of the Warrants provide that no holder of Warrants shall have the right to exercise any portion of the Warrants to the extent that..."
Warrants financial
"Warrants with an exercise price of $0.0001 per share held directly by VGOP"
Warrants are special documents that give you the right to buy a company's stock at a set price before a certain date. They are often used as a way for companies to attract investors or raise money, and their value can increase if the company's stock price goes up.
Rule 13d-3 regulatory
"Based on Rule 13d-3, as amended (the "Act"), VGI may be deemed to beneficially own the shares"
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.
Beneficially own regulatory
"VGI beneficially owns 1,461,633 shares of Common Stock consisting of..."
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.

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

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FAQ

What does the Schedule 13G/A for INBX disclose about Viking Global's stake?

It reports Viking Global–affiliated entities beneficially own 1,461,633 shares, representing 9.99% of common stock based on 14,607,036 shares outstanding as of March 11, 2026. The filing breaks the amount into specific fund and GP holdings.

Why does the filing mention a "Blocker" for warrants held by VGOP?

The Blocker prevents exercising Warrants if exercise would increase beneficial ownership above 9.99%; holders may change the Blocker up to 19.99% with notice, effective on the 61st day after issuer notice. This limits near-term warrant conversions.

Who was removed as a reporting person in this amendment and when?

The amendment states that David C. Ott retired effective March 31, 2026 and is no longer a beneficial owner; the filing was updated to remove him as a reporting person from the joint filing group.

How is the 1,461,633 share figure composed across Viking entities?

The total comprises (i) 1,267,823 shares held by VGOP, (ii) 67,018 shares held by KAVRA 104, (iii) 102,864 shares held by VGOD, and (iv) 23,928 shares that VGOP can purchase upon warrant exercise, subject to the Blocker.





45720N103

(CUSIP Number)
03/31/2026

(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




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:05/15/2026
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:05/15/2026
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:05/15/2026
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:05/15/2026
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:05/15/2026
KAVRA 104 LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of KAVRA 104 LLC (1)(2)
Date:05/15/2026
Viking Global Opportunities Drawdown GP LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Drawdown GP LLC (1)(2)
Date:05/15/2026
Viking Global Opportunities Drawdown Portfolio GP LLC
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Drawdown Portfolio GP LLC (1)(2)
Date:05/15/2026
Viking Global Opportunities Drawdown (Aggregator) LP
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Viking Global Opportunities Drawdown (Aggregator) LP (1)(2)
Date:05/15/2026
HALVORSEN OLE ANDREAS
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of O. Andreas Halvorsen (1)
Date:05/15/2026
Shabet Rose Sharon
Signature:/s/ Scott M. Hendler
Name/Title:Scott M. Hendler on behalf of Rose S. Shabet (2)
Date:05/15/2026

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 (for itself and as manager of KAVRA 104 LLC), 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 DRAWDOWN GP LLC, VIKING GLOBAL OPPORTUNITIES DRAWDOWN PORTFOLIO GP LLC and VIKING GLOBAL OPPORTUNITIES DRAWDOWN (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 (for itself and as manager of KAVRA 104 LLC), 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 DRAWDOWN GP LLC, VIKING GLOBAL OPPORTUNITIES DRAWDOWN PORTFOLIO GP LLC and VIKING GLOBAL OPPORTUNITIES DRAWDOWN (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