TECX — Tectonic Therapeutic, Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2018-06-21.
Performance
Technicals
Others in Healthcare
Measured signals that fired on TECX
| date | signal | measured base rate |
|---|---|---|
| 2026-07-02 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-03-04 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-12 | McNamara Peter Chief Scientific Officer | Open-market sale 10b5-1 plan | 43 | 35.00 | 1.5K |
| 2026-08-12 | McNamara Peter Chief Scientific Officer | Option exercise 10b5-1 plan | 43 | 14.71 | 633 |
| 2026-06-30 | McNamara Peter Chief Scientific Officer | Open-market sale 10b5-1 plan | 172 | 35.00 | 6.0K |
| 2026-06-30 | McNamara Peter Chief Scientific Officer | Option exercise 10b5-1 plan | 172 | 14.71 | 2.5K |
| 2026-06-20 | REICIN ALISE Chief Executive Officer | Shares withheld for tax | 924 | 30.34 | 28.0K |
| 2026-05-04 | Ruddy Marcella K. Chief Medical Officer | Open-market sale 10b5-1 plan | 1.1K | 30.00 | 31.9K |
| 2026-04-01 | Ruddy Marcella K. Chief Medical Officer | Open-market sale 10b5-1 plan | 1.0K | 31.05 | 31.1K |
| 2026-03-06 | Ruddy Marcella K. Chief Medical Officer | Open-market sale 10b5-1 plan | 10.0K | 30.00 | 300.0K |
| 2026-03-06 | McNamara Peter Chief Scientific Officer | Open-market sale 10b5-1 plan | 6.0K | 30.00 | 181.4K |
| 2026-03-06 | McNamara Peter Chief Scientific Officer | Open-market sale 10b5-1 plan | 215 | 35.00 | 7.5K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| FMR LLC | 87.1M | 2.8M |
| TCG Crossover Management, LLC | 37.2M | 1.2M |
| Aberdeen Group plc | 35.3M | 1.1M |
| BlackRock, Inc. | 26.6M | 860.4K |
| BRAIDWELL LP | 26.2M | 847.2K |
| First Light Asset Management, LLC | 20.0M | 647.7K |
| BAKER BROS. ADVISORS LP | 18.8M | 607.8K |
| 5AM Venture Management, LLC | 18.8M | 606.7K |
| VANGUARD CAPITAL MANAGEMENT LLC | 14.6M | 473.5K |
| Vestal Point Capital, LP | 10.1M | 328.0K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 144 | 2026-08-21 | — | on EDGAR ↗ |
| 4 | 2026-08-14 | 2026-08-12 | on EDGAR ↗ |
| 144 | 2026-08-12 | — | on EDGAR ↗ |
| 10-Q | 2026-08-06 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-06 | 2026-08-06 | on EDGAR ↗ |
| 4 | 2026-07-01 | 2026-06-30 | on EDGAR ↗ |
| 144 | 2026-06-30 | — | on EDGAR ↗ |
| 4 | 2026-06-23 | 2026-06-20 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
- Tectonic Therapeutic, Inc. (TECX) filed form 144 · 2026-08-21 · SEC EDGAR
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