Tectonic Therapeutic Inc is a biotechnology company focused on the discovery and development of therapeutic proteins and antibodies that modulate the activity of GPCRs. Its technology platform called GEODe, Tectonic is focused on developing biologic medicines that overcome the existing challenges of GPCR-targeted drug discovery to modify the course of disease. The company focuses on areas of important unmet medical need, often where therapeutic options are poor or nonexistent, and where new medicines have the potential to improve patient quality of life or extend duration of life. Pipeline includes TX000045, Group 2 PH, TX2100: GPCR Antagonist for Hereditary Hemorrhagic Telangiectasia (HHT), Fibrosis.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 3 | 258 | $9K |
| Grant or award | 6 | 68,700 | |
| Option exercise | 6 | 516 | |
| Tax withholding / forfeiture | 1 | 924 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
43 Form 4 filings on record, the earliest from Oct 24, 2024, newest first. Filing history page 2 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Marc Schwabish - Officer | Grant or award | Common Stock | 4,210 | $0.00 | - | |
| Marc Schwabish - Officer | Grant or award | Employee Stock Option (Right to Buy) | 7,650 | $0.00 | - | |
| Peter McNamara - Officer | Grant or award | Common Stock | 4,550 | $0.00 | - | |
| Peter McNamara - Officer | Grant or award | Employee Stock Option (Right to Buy) | 8,260 | $0.00 | - | |
| Alise Reicin - Officer | Grant or award | Common Stock | 14,700 | $0.00 | - | |
| Alise Reicin - Officer | Grant or award | Employee Stock Option (Right to Buy) | 26,710 | $0.00 | - | |
| Phillip B. Donenberg | Grant or award | Stock Option (Right to Buy) | 10,200 | $0.00 | - | |
| Terrance McGuire | Grant or award | Stock Option (Right to Buy) | 10,200 | $0.00 | - | |
| Timothy A. Springer | Grant or award | Stock Option (Right to Buy) | 10,200 | $0.00 | - | |
| Timothy A. Springer | Open-market purchase | Common Stock | 2,861 | $14.62 | $42K | |
| Timothy A. Springer | Open-market purchase | Common Stock | 857 | $15.23 | $13K | |
| Timothy A. Springer | Open-market purchase | Common Stock | 8,092 | $16.73 | $135K | |
| Timothy A. Springer | Open-market purchase | Common Stock | 9,478 | $16.31 | $155K | |
| Timothy A. Springer | Open-market purchase | Common Stock | 16,215 | $14.62 | $237K | |
| Timothy A. Springer | Open-market purchase | Common Stock | 4,856 | $15.23 | $74K | |
| Timothy A. Springer | Open-market purchase | Common Stock | 45,858 | $16.73 | $767K | |
| Timothy A. Springer | Open-market purchase | Common Stock | 53,706 | $16.31 | $876K | |
| Timothy A. Springer | Open-market purchase | Common Stock | 87,500 | $17.10 | $1.50M | |
| Timothy A. Springer | Open-market purchase | Common Stock | 412,500 | $17.10 | $7.05M | |
| Terrance McGuire | Open-market sale | Common Stock | 500,000 | $17.10 | $8.55M | |
| Marc Schwabish - Officer | Option exercise | Common Stock | 2,000 | $2.38 | $5K | |
| Marc Schwabish - Officer | Option exercise | Employee Stock Option (Right to Buy) | 2,000 | - | - | |
| Alise Reicin - Officer | Grant or award | Common Stock | 11,717 | $0.00 | - | |
| Alise Reicin - Officer | Grant or award | Employee Stock Option (Right to Buy) | 6,000 | $0.00 | - | |
| Peter McNamara - Officer | Option exercise | Common Stock | 3,500 | $2.38 | $8K | |
| Peter McNamara - Officer | Option exercise | Employee Stock Option (Right to Buy) | 3,500 | - | - | |
| Timothy A. Springer | Open-market purchase | Common Stock | 300,000 | $33.59 | $10.08M |
This is as far as the anonymous view goes. Create a free account for all 43 TECX filings on record.
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| TERRANCE MCGUIRE | Former Director | 7,513 | $277K | View on EDGAR | |
| TERRANCE MCGUIRE | Former Director | 10,200 | $384K | View on EDGAR | |
| PETER MCNAMARA | Officer | 129 | $4K | View on EDGAR |
Tectonic Therapeutic, Inc. (TECX) had 10 insider filings in the last 90 days, with the most recent on 2026-08-26. The full record for TECX runs to 43 Form 4 filings, the earliest from 2024-10-24. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of TECX were filed in the last 90 days. 14 purchases are on record for this company.
3 insider sales of TECX were filed in the last 90 days, totaling $9K.
This page tracks TECX Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
Create a free InsiderAlpha account and press Watch on this page to add TECX to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.