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
-
Grant·A
Lochner Daniel KEY
Chief Financial Officer
$0
7.5K sh
Own New
-
Grant·A
Director
$0
10.2K sh
Own New
-
Grant·A
Director
$0
10.2K sh
Own New
-
Grant·A
Director, 10% Owner
$0
10.2K sh
Own New
-
Grant·A
Director
$0
10.2K sh
Own New
-
Grant·A
Director
$0
20.4K sh
Own New
-
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%
-
Grant·A
Director
$0
20.4K sh
Own New
-
Sell·S
Chief Medical Officer · 10b5-1
$300.0K
10.0K sh · $30.00
Own -13%
-
Exercise·M
Chief Scientific Officer · 10b5-1
$0
2.7K sh · 2 lots
Own +9%
-
Exercise·M
Chief Scientific Officer · 10b5-1
$9.1K
2.7K sh · $3.36 avg · 2 lots
Own +5%
-
Sell·S
Chief Scientific Officer · 10b5-1
$188.9K
6.3K sh · $30.17 avg · 2 lots
Own -10%
-
Grant·A
REICIN ALISE KEY
Chief Executive Officer
$0
69.2K sh
Own New
-
Grant·A
REICIN ALISE KEY
Chief Executive Officer
$0
76.5K sh
Own +33%
-
Grant·A
Chief Business Officer
$0
17.8K sh
Own New
-
Grant·A
Chief Business Officer
$0
19.5K sh
Own +76%
-
Grant·A
Lochner Daniel KEY
Chief Financial Officer
$0
24.2K sh
Own New
-
Grant·A
Lochner Daniel KEY
Chief Financial Officer
$0
26.5K sh
Own +83%
-
Grant·A
Chief Scientific Officer · 10b5-1
$0
21.0K sh
Own New
-
Grant·A
Chief Scientific Officer · 10b5-1
$0
23.0K sh
Own +61%
-
Sell·S
Chief Scientific Officer · 10b5-1
$77.6K
3.3K sh · $23.53 avg · 2 lots
Own -5%
-
Grant·A
Chief Medical Officer
$0
24.2K sh
Own New
-
Grant·A
Chief Medical Officer
$0
26.5K sh
Own +50%
-
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%
-
Exercise·M
Chief Business Officer
—
4.5K sh
Own +6%
-
Exercise·M
Chief Business Officer
$10.7K
4.5K sh · $2.38
Own +21%
-
Other·F
Chief Scientific Officer
$40.6K
1.7K sh · $23.22
Own -4%
-
Other·F
Chief Business Officer
$37.6K
1.6K sh · $23.22
Own -7%
-
Other·F
Lochner Daniel KEY
Chief Financial Officer
$48.2K
2.1K sh · $23.22
Own -7%
-
Other·F
Chief Medical Officer
$47.9K
2.1K sh · $23.22
Own -4%
-
Other·F
REICIN ALISE KEY
Chief Executive Officer
$95.3K
4.1K sh · $23.22
Own -2%
-
Exercise·M
REICIN ALISE KEY
Chief Executive Officer
—
11.0K sh
Own +91%
-
Exercise·M
REICIN ALISE KEY
Chief Executive Officer
$26.1K
11.0K sh · $2.38
Own +5%
-
Exercise·M
Chief Scientific Officer
—
7.0K sh
Own +39%
-
Exercise·M
Chief Scientific Officer
$20.9K
7.0K sh · $2.98
Own +21%
-
Grant·A
Chief Scientific Officer
$0
8.3K sh
Own New
-
Grant·A
Chief Scientific Officer
$0
4.5K sh
Own +16%
-
Grant·A
Chief Business Officer
$0
7.7K sh
Own New
-
Grant·A
Chief Business Officer
$0
4.2K sh
Own +22%
-
Grant·A
Lochner Daniel KEY
Chief Financial Officer
$0
9.9K sh
Own New
-
Grant·A
Lochner Daniel KEY
Chief Financial Officer
$0
5.4K sh
Own +24%
-
Grant·A
Chief Medical Officer
$0
9.8K sh
Own New
-
Grant·A
Chief Medical Officer
$0
5.4K sh
Own +11%
-
Grant·A
REICIN ALISE KEY
Chief Executive Officer
$0
26.7K sh
Own New
-
Grant·A
REICIN ALISE KEY
Chief Executive Officer
$0
14.7K sh
Own +7%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 11, 2026 | Lochner Daniel KEY | Grant A | 7.5K | $0 |
| Jun 9, 2026 | Vitorovic Stefan | Grant A | 10.2K | $0 |
| Jun 9, 2026 | Tipirneni Praveen P. | Grant A | 10.2K | $0 |
| Jun 9, 2026 | SPRINGER TIMOTHY A | Grant A | 10.2K | $0 |
| Jun 9, 2026 | Donenberg Phillip B. | Grant A | 10.2K | $0 |
| Jun 8, 2026 | Chutter Jessica Caroline | Grant A | 20.4K | $0 |
| 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 |
| Apr 1, 2026 | Nader Francois | Grant A | 20.4K | $0 |
| Mar 6, 2026 | Ruddy Marcella K. 10b5-1 | Sell S | 10.0K | $300.0K |
| Mar 6, 2026 | McNamara Peter 10b5-1 | Exercise M | 2.7K2 lots | $0 |
| Mar 6, 2026 | McNamara Peter 10b5-1 | Exercise M | 2.7K2 lots | $9.1K |
| Mar 6, 2026 | McNamara Peter 10b5-1 | Sell S | 6.3K2 lots | $188.9K |
| Mar 4, 2026 | REICIN ALISE KEY | Grant A | 69.2K | $0 |
| Mar 4, 2026 | REICIN ALISE KEY | Grant A | 76.5K | $0 |
| Mar 4, 2026 | Schwabish Marc | Grant A | 17.8K | $0 |
| Mar 4, 2026 | Schwabish Marc | Grant A | 19.5K | $0 |
| Mar 4, 2026 | Lochner Daniel KEY | Grant A | 24.2K | $0 |
| Mar 4, 2026 | Lochner Daniel KEY | Grant A | 26.5K | $0 |
| Mar 4, 2026 | McNamara Peter 10b5-1 | Grant A | 21.0K | $0 |
| Mar 4, 2026 | McNamara Peter 10b5-1 | Grant A | 23.0K | $0 |
| Mar 4, 2026 | McNamara Peter 10b5-1 | Sell S | 3.3K2 lots | $77.6K |
| Mar 4, 2026 | Ruddy Marcella K. | Grant A | 24.2K | $0 |
| Mar 4, 2026 | Ruddy Marcella K. | Grant A | 26.5K | $0 |
| 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 |
| Feb 10, 2026 | Schwabish Marc | Exercise M | 4.5K | — |
| Feb 10, 2026 | Schwabish Marc | Exercise M | 4.5K | $10.7K |
| Feb 4, 2026 | McNamara Peter | Other F | 1.7K | $40.6K |
| Feb 4, 2026 | Schwabish Marc | Other F | 1.6K | $37.6K |
| Feb 4, 2026 | Lochner Daniel KEY | Other F | 2.1K | $48.2K |
| Feb 4, 2026 | Ruddy Marcella K. | Other F | 2.1K | $47.9K |
| Feb 4, 2026 | REICIN ALISE KEY | Other F | 4.1K | $95.3K |
| Dec 31, 2025 | REICIN ALISE KEY | Exercise M | 11.0K | — |
| Dec 31, 2025 | REICIN ALISE KEY | Exercise M | 11.0K | $26.1K |
| Dec 22, 2025 | McNamara Peter | Exercise M | 7.0K | — |
| Dec 22, 2025 | McNamara Peter | Exercise M | 7.0K | $20.9K |
| Sep 25, 2025 | McNamara Peter | Grant A | 8.3K | $0 |
| Sep 25, 2025 | McNamara Peter | Grant A | 4.5K | $0 |
| Sep 25, 2025 | Schwabish Marc | Grant A | 7.7K | $0 |
| Sep 25, 2025 | Schwabish Marc | Grant A | 4.2K | $0 |
| Sep 25, 2025 | Lochner Daniel KEY | Grant A | 9.9K | $0 |
| Sep 25, 2025 | Lochner Daniel KEY | Grant A | 5.4K | $0 |
| Sep 25, 2025 | Ruddy Marcella K. | Grant A | 9.8K | $0 |
| Sep 25, 2025 | Ruddy Marcella K. | Grant A | 5.4K | $0 |
| Sep 25, 2025 | REICIN ALISE KEY | Grant A | 26.7K | $0 |
| Sep 25, 2025 | REICIN ALISE KEY | Grant A | 14.7K | $0 |
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.