Form 4 for TECX Tectonic Therapeutic, Inc.
Accepted 2026-03-09 00:00:00 ET · period of report 2026-03-06 · accession 0002023255-26-000005 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-03-09 | 2026-03-06 | TECX | McNamara Peter | CSO | S - Sale+OE | $30.17 | -6,262 | 55.5K | -10% | -$188.9K |
| DM | 2026-03-09 | 2026-03-06 | TECX | McNamara Peter | CSO | M - OptEx | $3.36 | +2,715 | 61.3K | +5% | +$9,113 |
| DM | 2026-03-09 | 2026-03-06 | TECX | McNamara Peter | CSO | M - OptEx | $0.00 | -2,715 | 32.0K | -8% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-03-06 | S | D | 215 | $35.00 | 55,285 | D | — | — | |
| 2 | Common | Common Stock | 2026-03-06 | M | A | 215 | $14.71 | 61,547 | D | — | — | |
| 3 | Common | Common Stock | 2026-03-06 | S | D | 6,047 | $30.00 | 55,500 | D | — | — | |
| 4 | Common | Common Stock | 2026-03-06 | M | A | 2,500 | $2.38 | 61,332 | D | — | — | |
| 5 | Derivative | Employee Stock Option (Right to Buy) | 2026-03-06 | M | D | 215 | $0.00 | 8,045 | D | $14.71 · — to 2035-09-24 | 215 Common Stock | (F4) The shares subject to the option vest in 48 equal monthly installments beginning on October 25, 2025, subject to the Reporting Person's continued service to the Issuer on each such vesting date. |
| 6 | Derivative | Employee Stock Option (Right to Buy) | 2026-03-06 | M | D | 2,500 | — | 31,959 | D | $2.38 · — to 2031-06-27 | 2,500 Common Stock | (F3) Received in exchange for a stock option to acquire 71,029 shares of common stock pursuant to that certain merger, as more fully described on the Reporting Person's Form 4 filed with the Securities and Exchange Commission on June 24, 2024. https://www.sec.gov/Archives/edgar/data/1681087/000141588924017962/xslF345X05/form4-06242024_080611.xml (F2) 25% of the shares subject to the option vested on June 1, 2022; and the remainder of the shares subject to the option vest in 36 equal monthly installments with the final amount vesting on June 1, 2025, subject to the Reporting Person's continued service to the Issuer on each such vesting date. |