Are insiders buying MAIA stock?

Yes — 9 distinct insiders have bought MAIA (MAIA Biotechnology, Inc.) on the open market, including 8 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Sep 15, 2026.

How much MAIA stock have insiders bought?

Insiders have bought a combined $2.5M of MAIA across 43 open-market purchases, based on SEC Form 4 filings.

What is an insider cluster buy in MAIA?

A cluster buy is two or more distinct MAIA Biotechnology, Inc. insiders — officers, directors, or 10% owners — each buying MAIA on the open market within a rolling window. MAIA has 8 detected cluster buys to date.

Where does this MAIA 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.

MAIA insider buying

8 cluster buys

MAIA Biotechnology, Inc.

When two or more insiders at MAIA Biotechnology, Inc. buy MAIA 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 MAIA 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

$2.5M

Market cap

Unknown

Detected clusters

Aug 20 – Sep 14, 2026
Detected Sep 15, 2026
High conviction2 insiders
Total bought
$352.3K
Market cap
Unknown
Jun 1 – Aug 28, 2026
Detected Sep 1, 2026
High conviction3 insiders
Total bought
$403.9K
Market cap
Unknown
Jun 1 – Aug 24, 2026
Detected Aug 26, 2026
High conviction3 insiders
Total bought
$219.8K
Market cap
Unknown

5 more clusters in MAIA

All notable open-market buys in MAIA

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
Sep 14, 2026	Vitoc Vladcluster Director, Chief Executive Officer, 10% Owner	73,000	$1.37	$100.0K	SEC ↗
Sep 10, 2026	Guerrero Ramirocluster Director	37,595	$1.32	$49.5K	SEC ↗
Aug 28, 2026	Guerrero Ramirocluster Director	46,620	$1.35	$62.9K	SEC ↗
Aug 27, 2026	Guerrero Ramirocluster Director	78,239	$1.39	$108.8K	SEC ↗
Aug 26, 2026	Guerrero Ramirocluster Director	8,931	$1.39	$12.4K	SEC ↗
Aug 24, 2026	Guerrero Ramirocluster Director	1,794	$1.33	$2.4K	SEC ↗
Aug 20, 2026	Guerrero Ramirocluster Director	11,899	$1.37	$16.3K	SEC ↗
Jun 1, 2026	Vitoc Vladcluster Director, Chief Executive Officer, 10% Owner	72,700	$1.39	$100.9K	SEC ↗
Jun 1, 2026	Smith Stancluster Director	75,000	$1.34	$100.2K	SEC ↗
Dec 22, 2025	Louie Ngar Yeecluster Director	81,699	$1.22	$99.7K	SEC ↗
Dec 22, 2025	Smith Stancluster Director	57,189	$1.22	$69.8K	SEC ↗
Dec 22, 2025	CHAOUKI STEVEN Mcluster Director	40,849	$1.22	$49.8K	SEC ↗
Dec 5, 2025	Smith Stancluster Director	4,580	$1.20	$5.5K	SEC ↗
Dec 5, 2025	Smith Stancluster Director	4,580	$1.20	$5.5K	SEC ↗
Dec 5, 2025	Smith Stancluster Director	4,580	$1.19	$5.5K	SEC ↗
Nov 28, 2025	Vitoc Vladcluster Director, Chief Executive Officer, 10% Owner	50,000	$1.14	$57.0K	SEC ↗
Nov 28, 2025	Luput Cristiancluster Director	18,145	$1.11	$20.1K	SEC ↗
Nov 26, 2025	Vitoc Vladcluster Director, Chief Executive Officer, 10% Owner	22,000	$1.05	$23.1K	SEC ↗
Nov 26, 2025	Luput Cristiancluster Director	20,000	$1.08	$21.6K	SEC ↗
Nov 26, 2025	Smith Stancluster Director	15,000	$1.04	$15.6K	SEC ↗
Nov 25, 2025	Smith Stancluster Director	15,000	$0.98	$14.7K	SEC ↗
Nov 25, 2025	Vitoc Vladcluster Director, Chief Executive Officer, 10% Owner	10,500	$0.97	$10.2K	SEC ↗
Nov 25, 2025	Luput Cristiancluster Director	10,000	$0.98	$9.8K	SEC ↗
Nov 24, 2025	Smith Stancluster Director	10,000	$0.99	$9.9K	SEC ↗
Nov 24, 2025	Vitoc Vladcluster Director, Chief Executive Officer, 10% Owner	10,000	$0.99	$9.9K	SEC ↗

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

MAIA insider buying — FAQ

Are insiders buying MAIA stock?: Yes — 9 distinct insiders have bought MAIA (MAIA Biotechnology, Inc.) on the open market, including 8 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Sep 15, 2026.
How much MAIA stock have insiders bought?: Insiders have bought a combined $2.5M of MAIA across 43 open-market purchases, based on SEC Form 4 filings.
What is an insider cluster buy in MAIA?: A cluster buy is two or more distinct MAIA Biotechnology, Inc. insiders — officers, directors, or 10% owners — each buying MAIA on the open market within a rolling window. MAIA has 8 detected cluster buys to date.
Where does this MAIA 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 MAIA

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 MAIA 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 MAIA.