Form 4 for TECX Tectonic Therapeutic, Inc.
Accepted 2026-08-26 16:30:19 ET · period of report 2026-08-25 · accession 0002023255-26-000009 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-08-26 16:30 | 2026-08-25 | TECX | McNamara Peter | CSO | M - OptEx | $14.71 | +43 | 55.3K | +0.1% | +$632.53 |
| DT | 2026-08-26 16:30 | 2026-08-25 | TECX | McNamara Peter | CSO | S - Sale+OE | $36.52 | -43 | 55.3K | -0.1% | -$1,570 |
| DT | 2026-08-26 16:30 | 2026-08-25 | TECX | McNamara Peter | CSO | M - OptEx | $0.00 | -43 | 7,787 | -0.5% | $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 | 2026-08-25 | M | A | 43 | $14.71 | 55,328 | D | — | — | (F1) This exercise and subsequent sale was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 14, 2025. |
| 2 | Common | Common Stock | 2026-08-25 | S | D | 43 | $36.52 | 55,285 | D | — | — | (F1) This exercise and subsequent sale was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 14, 2025. |
| 3 | Derivative | Employee Stock Option (Right to Buy) | 2026-08-25 | M | D | 43 | $0.00 | 7,787 | D | $14.71 · — to 2035-09-24 | 43 Common Stock | (F1) This exercise and subsequent sale was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 14, 2025. (F2) 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. |