Are insiders buying QTTB stock?

Yes — 2 distinct insiders have bought QTTB (Q32 Bio 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 Jun 1, 2026.

How much QTTB stock have insiders bought?

Insiders have bought a combined $30.0M of QTTB across 4 open-market purchases, based on SEC Form 4 filings.

What is an insider cluster buy in QTTB?

A cluster buy is two or more distinct Q32 Bio Inc. insiders — officers, directors, or 10% owners — each buying QTTB on the open market within a rolling window. QTTB has 1 detected cluster buy to date.

Where does this QTTB 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.

QTTB insider buying

1 cluster buy

Q32 Bio Inc. · Healthcare

When two or more insiders at Q32 Bio Inc. buy QTTB 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 QTTB 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

$30.0M

Market cap

$215.7M

Detected clusters

May 28 – May 28, 2026
Detected May 28, 2026
2 insiders
Total bought
$30.0M
Market cap
$215.7M

All notable open-market buys in QTTB

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 28, 2026	ORBIMED ADVISORS LLCcluster Director, 10% Owner	1,250,000	$8.00	$10.0M	SEC ↗
May 28, 2026	Xu Diyongcluster Director, 10% Owner	1,250,000	$8.00	$10.0M	SEC ↗
May 28, 2026	ORBIMED ADVISORS LLCcluster Director, 10% Owner	625,000	$8.00	$5.0M	SEC ↗
May 28, 2026	Xu Diyongcluster Director, 10% Owner	625,000	$8.00	$5.0M	SEC ↗

More Healthcare stocks with insider cluster buys

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QTTB insider buying — FAQ

Are insiders buying QTTB stock?: Yes — 2 distinct insiders have bought QTTB (Q32 Bio 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 Jun 1, 2026.
How much QTTB stock have insiders bought?: Insiders have bought a combined $30.0M of QTTB across 4 open-market purchases, based on SEC Form 4 filings.
What is an insider cluster buy in QTTB?: A cluster buy is two or more distinct Q32 Bio Inc. insiders — officers, directors, or 10% owners — each buying QTTB on the open market within a rolling window. QTTB has 1 detected cluster buy to date.
Where does this QTTB 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 QTTB

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 QTTB 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 QTTB.