ETRA insider buying
1 cluster buyElectra Therapeutics, Inc.
When two or more insiders at Electra Therapeutics, Inc. buy ETRA 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 ETRA 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.
Detected clusters
- Sep 21 – Sep 21, 2026Detected Sep 23, 20262 insidersTotal bought$40.0MMarket capUnknown
All notable open-market buys in ETRA
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 21, 2026 | GORDON CARL Lcluster Director, 10% Owner | 1,000,000 | $15.00 | $15.0M | SEC ↗ |
| Sep 21, 2026 | ORBIMED ADVISORS LLCcluster Director, 10% Owner | 1,000,000 | $15.00 | $15.0M | SEC ↗ |
| Sep 21, 2026 | GORDON CARL Lcluster Director, 10% Owner | 333,333 | $15.00 | $5.0M | SEC ↗ |
| Sep 21, 2026 | ORBIMED ADVISORS LLCcluster Director, 10% Owner | 333,333 | $15.00 | $5.0M | SEC ↗ |
ETRA insider buying — FAQ
- Are insiders buying ETRA stock?
- Yes — 2 distinct insiders have bought ETRA (Electra Therapeutics, 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 Sep 23, 2026.
- How much ETRA stock have insiders bought?
- Insiders have bought a combined $40.0M of ETRA across 4 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in ETRA?
- A cluster buy is two or more distinct Electra Therapeutics, Inc. insiders — officers, directors, or 10% owners — each buying ETRA on the open market within a rolling window. ETRA has 1 detected cluster buy to date.
- Where does this ETRA 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 ETRA
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 ETRA 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 ETRA.