TECX
insider transactionsTectonic Therapeutic, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Cluster buy signal: Multiple insiders at the same company buying around the same time — often a stronger signal than a single buy. 2 different insiders made open-market purchases in the last 365 days, totalling $235.2K.
Net shares · 365d
-10.6K
11.0K buy · 21.6K sell
Net value · 365d
-$394.4K
$235.2K in · $629.6K out
Sentiment · 365d
Net selling
27% buying · 73% selling
Open-market trades · 365d
10
11.0K buy · 21.6K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
Transactions · 365d
-
Sell·S
Chief Medical Officer · 10b5-1
$31.9K
1.1K sh · $30.00
Own -2%
-
Sell·S
Chief Medical Officer · 10b5-1
$31.1K
1.0K sh · $31.05
Own -1%
-
Sell·S
Chief Medical Officer · 10b5-1
$300.0K
10.0K sh · $30.00
Own -13%
-
Sell·S
Chief Scientific Officer · 10b5-1
$188.9K
6.3K sh · $30.17 avg · 2 lots
Own -10%
-
Sell·S
Chief Scientific Officer · 10b5-1
$77.6K
3.3K sh · $23.53 avg · 2 lots
Own -5%
-
Buy·P
REICIN ALISE KEY
Chief Executive Officer
$52.8K
2.5K sh · $21.10
Own +2%
-
Buy·P
REICIN ALISE KEY
Chief Executive Officer
$52.8K
2.5K sh · $21.10
Own +1%
-
Buy·P
Lochner Daniel KEY
Chief Financial Officer
$129.7K
6.0K sh · $21.61
Own +23%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| May 4, 2026 | Ruddy Marcella K. 10b5-1 | Sell S | 1.1K | $31.9K |
| Apr 1, 2026 | Ruddy Marcella K. 10b5-1 | Sell S | 1.0K | $31.1K |
| Mar 6, 2026 | Ruddy Marcella K. 10b5-1 | Sell S | 10.0K | $300.0K |
| Mar 6, 2026 | McNamara Peter 10b5-1 | Sell S | 6.3K2 lots | $188.9K |
| Mar 4, 2026 | McNamara Peter 10b5-1 | Sell S | 3.3K2 lots | $77.6K |
| Feb 11, 2026 | REICIN ALISE KEY | Buy P | 2.5K | $52.8K |
| Feb 11, 2026 | REICIN ALISE KEY | Buy P | 2.5K | $52.8K |
| Feb 10, 2026 | Lochner Daniel KEY | Buy P | 6.0K | $129.7K |
Buy Sell Non-market (grant · exercise · gift)
About TECX insider trading
This page tracks insider transactions for Tectonic Therapeutic, Inc. (TECX) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.