SEC Form 3 · accession 0002153761-26-000002
Electra Therapeutics, Inc. · ETRA
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
David J. Tucker
Officer — Principal Accounting Officer
Period of report
Sep 18, 2026
Accepted (ET)
Sep 18, 2026 · 4:28 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0002088082
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Employee Stock Option (right to buy)F1 | $4.96 | holding | — | — | — | — | Apr 8, 2036 | Common Stock | 114,000 | — | D |
| Employee Stock Option (right to buy)F2 | $15.00 | holding | — | — | — | — | Sep 16, 2036 | Common Stock | 73,402 | — | D |
Explanation of responses
- F11/4th of the total shares subject to this option vested one year after March 30, 2026, and thereafter 1/48th of the total shares subject to this option shall vest on each monthly anniversary thereof. The shares subject to this option are early exercisable, subject to the Issuer's right of repurchase.
- F21/48th of the total shares subject to this option shall vest monthly commencing from September 17, 2026.