Are insiders buying GERN stock?

Yes — 4 distinct insiders have bought GERN (GERON CORP) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was May 13, 2025.

How much GERN stock have insiders bought?

Insiders have bought a combined $222.0K of GERN across 4 open-market purchases, based on SEC Form 4 filings.

What is an insider cluster buy in GERN?

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

Where does this GERN 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.

GERN insider buying

1 cluster buy

GERON CORP · Healthcare

When two or more insiders at GERON CORP buy GERN 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 GERN 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

$222.0K

Market cap

$923.8M

Detected clusters

Feb 27 – May 9, 2025
Detected May 9, 2025
High conviction4 insiders
Total bought
$222.0K
Market cap
$923.8M

All notable open-market buys in GERN

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
May 9, 2025	LAWLIS V BRYANcluster Director	13,300	$1.18	$15.7K	SEC ↗
Feb 27, 2025	Ziegler Jamescluster EVP, Chief Commercial Officer	100,000	$1.60	$160.0K	SEC ↗
Feb 27, 2025	Samuels Scott Alancluster EVP, Chief Legal Officer	15,000	$1.61	$24.2K	SEC ↗
Feb 27, 2025	SCARLETT JOHN Acluster Director, Chairman, President and CEO	12,500	$1.77	$22.1K	SEC ↗

More Healthcare stocks with insider cluster buys

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GERN insider buying — FAQ

Are insiders buying GERN stock?: Yes — 4 distinct insiders have bought GERN (GERON CORP) on the open market, including 1 cluster buy where two or more insiders bought within a rolling window. The most recent qualifying activity was May 13, 2025.
How much GERN stock have insiders bought?: Insiders have bought a combined $222.0K of GERN across 4 open-market purchases, based on SEC Form 4 filings.
What is an insider cluster buy in GERN?: A cluster buy is two or more distinct GERON CORP insiders — officers, directors, or 10% owners — each buying GERN on the open market within a rolling window. GERN has 1 detected cluster buy to date.
Where does this GERN 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 GERN

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 GERN 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 GERN.