Marcella K. Ruddy sold $300k of TECX
Chief Medical Officer at Tectonic Therapeutic, Inc.. 10,000 shares at an average of $30.00, traded Mar 6, 2026, filed Mar 9, 2026.
Score components
- +15RoleOfficer
- +14Trade size$300k at market
- +5Share of holdings soldSold 13% of holdings
- +8Cluster2 insiders selling within 14 days
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m -11.6%, 3m -14.4%, 6m -9.6%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0002023849-26-000004, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Mar 6, 2026 | SOpen-market sale Common Stock10b5-1 | -10,000 | $30.00 | $300k | 69,747 | Mar 9, 2026 |
Related signals
Other insiders at Tectonic Therapeutic, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 0Weak | Tectonic Therapeutic, Inc. | Peter McNamara Chief Scientific Officer | $12k 536 shares | -1% | |
| 0Weak | Tectonic Therapeutic, Inc. | Peter McNamara Chief Scientific Officer | $1,570 43 shares | -0% | |
| 0Weak | Tectonic Therapeutic, Inc. | Peter McNamara Chief Scientific Officer | $1,505 43 shares | -0% | |
| 0Weak | Tectonic Therapeutic, Inc. | Peter McNamara Chief Scientific Officer | $6,020 172 shares | -0% | |
| 0Weak | Tectonic Therapeutic, Inc. | Marcella K. Ruddy Chief Medical Officer | $32k 1,065 shares | -2% | |
| 0Weak | Tectonic Therapeutic, Inc. | Marcella K. Ruddy Chief Medical Officer | $31k 1,000 shares | -1% | |
| 5Weak | Tectonic Therapeutic, Inc. | Peter McNamara Chief Scientific Officer | $189k 6,262 shares | -10% | |
| 12Weak | Tectonic Therapeutic, Inc. | Peter McNamara Chief Scientific Officer | $78k 3,299 shares | -8% | |
| 48Moderate | Tectonic Therapeutic, Inc. | Alise Reicin Chief Executive Officer | $53k 2,500 shares | +2% | |
| 48Moderate | Tectonic Therapeutic, Inc. | Alise Reicin Chief Executive Officer | $53k 2,500 shares | +1% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.