Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13D/A

Active or control-oriented beneficial ownership filing.

Ownership

7.9%

Beneficial ownership of this reported class.

Shares

1,149,046 shares

Shares beneficially owned as disclosed.

Event date

03 Jun 2024

Date tied to the ownership event or amendment.

Accepted by SEC

26 Feb 2025

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
INBX
Shares outstanding
14,544,886 shares
Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
SCHEDULE 13D/A
Accepted by SEC
26 Feb 2025, 16:26:18 UTC
Event date
03 Jun 2024
Source filing
View source filing

Key filing fact

Jon Faiz Kayyem disclosed 7.9% ownership in Inhibrx Biosciences, Inc. Common Stock, par value $0.0001 per share (INBX) on 03 Jun 2024.

Key facts

  • Jon Faiz Kayyem filed SCHEDULE 13D/A for Inhibrx Biosciences, Inc. Common Stock, par value $0.0001 per share (INBX).
  • Disclosed ownership: 7.9%.
  • Date of event: 03 Jun 2024.

Change

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 26 Feb 2025, 16:26.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (2)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
The Jon F. Kayyem and Paige Gates-Kayyem Family Trust 3.5% 509,360 509,360 0 /s/ Jon Faiz Kayyem Jon Faiz Kayyem, Trustee 0001821293
Jon Faiz Kayyem 7.9% 1,149,046 0 1,149,046 /s/ Jon Faiz Kayyem Jon Faiz Kayyem 0001366268
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .