Transaction · 0001366268-26-000004
INBXInhibrx Biosciences, Inc.
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
- Trade date
- Sep 08, 2026
- Filing date
- Sep 08, 2026
How reported position traded is calculated
Shares purchased ÷ (holdings after − shares purchased). Estimated position before: 419,360 shares.
Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.
INBX price since this filing
Daily closing prices, with the filing date and available return windowsINBX · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago1w ago1d ago
Returns since7d -7.6%30d -18.9%90d180d1y
Transaction facts
Stored Form 4 columns with their raw values
- 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
- 5,000 sh $113.52 per share
- Estimated value
- $567k Computed from shares × price
- Holdings after
- 424,360 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 $100kLarge $1.00M
Cluster Buy Director Buy
Filing-only score
+36 points
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.
How this score is calculated
- open_market_purchase+12 points
transaction_code = P
Code P is a discretionary open-market purchase. - director_buy+6 points
is_director = true
Director open-market purchase. - cluster_buy+14 points
cluster-buy signal matched
Multiple insiders bought within the configured window. - timely_filing+4 points
reporting_delay_days = 0
Filing reported within two business days of the transaction.
Signed filing-only points, not a probability or expected return. Version v1.
Reported relationships & other filings
Form 4 relationship flags and nearby filing context
Reported roles
No officer title
Officer NoDirector Yes10% NoOther No
Footnotes & amended
- 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…
- 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…
- F3
These securities are directly owned by the Jon Faiz Kayyem Revocable Trust, of which Jon Faiz Kayyem is the trustee.
- F4
These securities are directly owned by the Paige-Gates Kayyem Revocable Trust, of which Jon Faiz Kayyem's spouse is the trustee.
- 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…
- 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…
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