Electra Therapeutics, Inc. (ETRA) insider trading
Electra Therapeutics, Inc. insiders have made 2 open-market purchases worth $40.0M since Sep 23, 2026, by 2 different insiders. The latest: Carl L. Gordon (Director) bought $20.0M, filed Sep 23, 2026, scored 62 out of 100. 1 buy in the last year came within ten days of another insider's: a cluster, one of the stronger patterns in the research.
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Insider purchases
| Filed | Insider | Stake | Score | Bought | 1 week | 1 month |
|---|---|---|---|---|---|---|
| Sep 23 Form 4 (opens sec.gov) |
Carl L. GordonDirector · 2 insiders buyingDirector · 2 insiders buying | +314% stake | 62 | $20.0M 1,333,333 at $15.00 |
−9.6% | −29.2% |
| Sep 23 Form 4 (opens sec.gov) |
ORBIMED ADVISORS LLCDirectorDirector · 2 insiders buying | +314% stake | 54 | $20.0M 1,333,333 at $15.00 |
−9.6% | −29.2% |
Track record (hypothetical): a week after the filing, these buys averaged −9.6% (0% up, 2 measured); a month after, −29.2% (0% up, 2 measured).
Investors with more than 5% of ETRA (13D and 13G)
| Filed | Investor | Kind | Stake |
|---|---|---|---|
| Oct 29 13G | Dr. Beth C. Seidenberg | Passive | 10.1% |
A 13D is filed by an investor who may push for change; a 13G by a passive one.
Insiders who bought ETRA
- Carl L. Gordon Director
- ORBIMED ADVISORS LLC Director
Questions
Are insiders buying ETRA stock?
Yes. In the last 90 days, 2 open-market purchases were filed, worth $40.0M.
Who bought ETRA stock most recently?
Carl L. Gordon, Director, bought 1,333,333 shares for $20.0M (Form 4 (opens sec.gov), filed Sep 23, 2026).
How does InsiderBeacon score an insider buy?
Out of 100, from who bought, how much their stake grew, the size of the trade, whether other insiders bought within ten days, where the price sat in its 52-week range, and whether it was a first or a routine buy. The score is fixed when the filing arrives. The formula and the research behind it.
Insiders are also buying, same industry
Data as of Sep 23, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer