Are insiders buying INBX stock?

Yes — 6 distinct insiders have bought INBX (Inhibrx Biosciences, Inc.) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was Nov 22, 2024.

How much INBX stock have insiders bought?

Insiders have bought a combined $11.3M of INBX across 28 open-market purchases, based on SEC Form 4 filings.

What is an insider cluster buy in INBX?

A cluster buy is two or more distinct Inhibrx Biosciences, Inc. insiders — officers, directors, or 10% owners — each buying INBX on the open market within a rolling window. INBX has 1 detected cluster buy to date.

Where does this INBX insider trading data come from?

Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.

INBX insider buying

1 cluster buy

Inhibrx Biosciences, Inc. · Healthcare

When two or more insiders at Inhibrx Biosciences, Inc. buy INBX on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in INBX plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.

Clusters

Distinct insiders

Total bought

$11.3M

Market cap

$1.4B

Detected clusters

Aug 20 – Sep 16, 2024
Detected Sep 16, 2024
High conviction3 insiders
Total bought
$3.5M
Market cap
$1.4B

All notable open-market buys in INBX

Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.

Date	Insider	Shares	Price	Value	Filing
Nov 20, 2024	Kayyem Jon Faiz Director	18,750	$14.19	$266.1K	SEC ↗
Nov 20, 2024	Kayyem Jon Faiz Director	18,750	$14.19	$266.1K	SEC ↗
Nov 19, 2024	Kayyem Jon Faiz Director	34,843	$14.23	$495.8K	SEC ↗
Nov 19, 2024	Kayyem Jon Faiz Director	34,843	$14.23	$495.8K	SEC ↗
Oct 3, 2024	Vuori Kristiina MD Director	6,667	$15.00	$100.0K	SEC ↗
Sep 16, 2024	Lappe Markcluster Director, Chief Executive Officer	13,037	$17.13	$223.3K	SEC ↗
Sep 12, 2024	Lappe Markcluster Director, Chief Executive Officer	26,963	$15.05	$405.8K	SEC ↗
Sep 11, 2024	Vuori Kristiina MD Director	6,457	$15.07	$97.3K	SEC ↗
Sep 10, 2024	Lappe Markcluster Director, Chief Executive Officer	8,500	$15.19	$129.1K	SEC ↗
Sep 10, 2024	Vuori Kristiina MD Director	179	$15.00	$2.7K	SEC ↗
Sep 9, 2024	Lappe Markcluster Director, Chief Executive Officer	9,500	$15.21	$144.5K	SEC ↗
Sep 6, 2024	Lappe Markcluster Director, Chief Executive Officer	26,000	$15.29	$397.5K	SEC ↗
Sep 3, 2024	Lappe Markcluster Director, Chief Executive Officer	15,288	$15.66	$239.4K	SEC ↗
Aug 30, 2024	Lappe Markcluster Director, Chief Executive Officer	10,000	$14.02	$140.2K	SEC ↗
Aug 29, 2024	Lappe Markcluster Director, Chief Executive Officer	10,000	$14.03	$140.3K	SEC ↗
Aug 29, 2024	Vuori Kristiina MD Director	7,140	$14.00	$100.0K	SEC ↗
Aug 28, 2024	MANHARD KIMBERLYcluster Director	10,000	$13.98	$139.8K	SEC ↗
Aug 23, 2024	FORSYTH DOUGLAScluster Director	59,812	$14.07	$841.6K	SEC ↗
Aug 22, 2024	FORSYTH DOUGLAScluster Director	15,188	$12.89	$195.8K	SEC ↗
Aug 21, 2024	Lappe Markcluster Director, Chief Executive Officer	12,945	$12.93	$167.4K	SEC ↗
Aug 20, 2024	Lappe Markcluster Director, Chief Executive Officer	27,055	$12.97	$350.9K	SEC ↗
Jun 5, 2024	Kayyem Jon Faiz Director	49,284	$17.23	$849.2K	SEC ↗
Jun 5, 2024	Kayyem Jon Faiz Director	8,265	$17.89	$147.9K	SEC ↗
Jun 4, 2024	Kayyem Jon Faiz Director	65,337	$17.44	$1.1M	SEC ↗
Jun 4, 2024	Kayyem Jon Faiz Director	23,726	$18.24	$432.8K	SEC ↗

3 earlier buys hidden — sign in free to see the full history.

More Healthcare stocks with insider cluster buys

All insider buying in Healthcare →

INBX insider buying — FAQ

Are insiders buying INBX stock?: Yes — 6 distinct insiders have bought INBX (Inhibrx Biosciences, Inc.) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was Nov 22, 2024.
How much INBX stock have insiders bought?: Insiders have bought a combined $11.3M of INBX across 28 open-market purchases, based on SEC Form 4 filings.
What is an insider cluster buy in INBX?: A cluster buy is two or more distinct Inhibrx Biosciences, Inc. insiders — officers, directors, or 10% owners — each buying INBX on the open market within a rolling window. INBX has 1 detected cluster buy to date.
Where does this INBX insider trading data come from?: Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.

How we track insider buying in INBX

We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy INBX within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?

This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding INBX.