Transaction · 0001366268-26-000004

Kayyem Jon Faiz

Kayyem Jon Faiz, DIR, reported an open-market or private purchase at Inhibrx Biosciences, Inc. involving 5000.000000 shares for an estimated $567580.00. Reported holdings after the transaction were 424360.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

Open-market buySEC transaction code PDIR
INBXInhibrx Biosciences, Inc.
Filing timeSep 08
Trade dateSep 08, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$114.34
Pre-filing
1mo ago1w ago1d ago
Returns since
7d +0.0%30d +0.0%90d +0.0%180d +0.0%1y +0.0%

INBX price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
INBX since 2026-09-08Filed yesterday · 1 day of post-filing data
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Buy
Code P
Identifier
0001366268-26-000004
Common Stock
Transaction date
Sep 08, 2026
Filed Sep 08, 2026, 09:23 PM · 0d delay
Shares
5.00k sh
$11.3k per share
Estimated value
$56.7M
Computed from shares × price
Holdings after
424k sh
Indirect · By The Jon F. Kayyem and Paige Gates-Kayyem Family Trust

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Cluster Buy Director Buy
+36score
Filing-only score

+36

Compact filing score computed from stored Form 4 facts. Version v1.

Strong filing signal

This filing has a high positive filing-only score. It may deserve closer research, but it is not an investment recommendation.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    The shares were purchased in multiple transactions at prices ranging from $113.30 to $113.55 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby und…

  2. F2

    These securities are directly owned by The Jon F. Kayyem and Paige Gates-Kayyem Family Trust. Jon Faiz Kayyem is the trustee of The Jon Faiz Kayyem and Paige N. Gates Family Trust and he disclaims ben…

  3. F3

    These securities are directly owned by the Jon Faiz Kayyem Revocable Trust, of which Jon Faiz Kayyem is the trustee.

  4. F4

    These securities are directly owned by the Paige-Gates Kayyem Revocable Trust, of which Jon Faiz Kayyem's spouse is the trustee.

  5. F5

    These securities are directly owned by a custodial account managed by the reporting person for the benefit of the reporting person's minor child, Child A. The reporting person disclaims beneficial own…

  6. F6

    These securities are directly owned by a custodial account managed by the reporting person for the benefit of the reporting person's minor child, Child B. The reporting person disclaims beneficial own…

Original filing · 0001366268-26-000004
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Same reporting owner
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