Are insiders buying ASMB stock?

Yes — 4 distinct insiders have bought ASMB (ASSEMBLY 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 Dec 31, 2024.

How much ASMB stock have insiders bought?

Insiders have bought a combined $20.7M of ASMB across 6 open-market purchases, based on SEC Form 4 filings.

What is an insider cluster buy in ASMB?

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

Where does this ASMB 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.

ASMB insider buying

1 cluster buy

ASSEMBLY BIOSCIENCES, INC. · Healthcare

When two or more insiders at ASSEMBLY BIOSCIENCES, INC. buy ASMB 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 ASMB 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

$20.7M

Market cap

$572.6M

Detected clusters

Oct 8 – Dec 19, 2024
Detected Dec 19, 2024
2 insiders
Total bought
$20.5M
Market cap
$572.6M

All notable open-market buys in ASMB

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
Dec 30, 2024	Houghton Michael Director	3,202	$15.61	$50.0K	SEC ↗
Dec 19, 2024	GILEAD SCIENCES, INC.cluster 10% Owner	940,499	$21.37	$20.1M	SEC ↗
Nov 22, 2024	Schornstein Alexandercluster 10% Owner	17,024	$14.87	$253.1K	SEC ↗
Oct 8, 2024	Schornstein Alexandercluster 10% Owner	10,000	$14.58	$145.8K	SEC ↗
Jul 5, 2024	Schornstein Alexander 10% Owner	4,438	$12.52	$55.6K	SEC ↗
Jul 3, 2024	Schornstein Alexander 10% Owner	4,562	$12.29	$56.1K	SEC ↗

More Healthcare stocks with insider cluster buys

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ASMB insider buying — FAQ

Are insiders buying ASMB stock?: Yes — 4 distinct insiders have bought ASMB (ASSEMBLY 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 Dec 31, 2024.
How much ASMB stock have insiders bought?: Insiders have bought a combined $20.7M of ASMB across 6 open-market purchases, based on SEC Form 4 filings.
What is an insider cluster buy in ASMB?: A cluster buy is two or more distinct ASSEMBLY BIOSCIENCES, INC. insiders — officers, directors, or 10% owners — each buying ASMB on the open market within a rolling window. ASMB has 1 detected cluster buy to date.
Where does this ASMB 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 ASMB

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 ASMB 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 ASMB.