Mcguire Terrance insider trades
Mcguire Terrance has filed 31 Form 4s with the SEC that we hold, for Invivyd, Inc. (IVVD) (Director), Alector, Inc. (ALEC) (Director, 10% owner), Seer, Inc. (SEER) (Director) and Korsana Biosciences, Inc. (CYCN) (Director), among 5 companies in all. Across all of them we count 6 purchases worth $8.5M and 19 sales worth $12.6M reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a sale of 500,000 shares of Tectonic Therapeutic, Inc. worth $8.6M, dated 2025-04-07. The first filing on our record is dated 2021-08-09 and the latest 2026-07-30.
Invivyd, Inc. (IVVD)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-08-10 | P, purchase reported on Form 4 | 177,500 | $3.0M | 2021-08-12 |
| 2021-08-10 | P, purchase reported on Form 4 | 45,000 | $765.0K | 2021-08-12 |
| 2021-08-10 | P, purchase reported on Form 4 | 2,678 | $45.5K | 2021-08-12 |
| 2021-08-10 | P, purchase reported on Form 4 | 1,834 | $31.2K | 2021-08-12 |
| 2021-08-10 | P, purchase reported on Form 4 | 5,219 | $88.7K | 2021-08-12 |
| 2021-08-10 | P, purchase reported on Form 4 | 267,769 | $4.6M | 2021-08-12 |
| 2024-05-29 | S, sale reported on Form 4 | 112,381 | $186.6K | 2024-05-31 |
| 2024-12-09 | S, sale reported on Form 4 | 150,000 | $91.5K | 2024-12-11 |
| 2024-12-10 | S, sale reported on Form 4 | 175,000 | $103.2K | 2024-12-11 |
| 2024-12-11 | S, sale reported on Form 4 | 160,400 | $94.6K | 2024-12-11 |
| 2024-12-12 | S, sale reported on Form 4 | 125,000 | $72.5K | 2024-12-16 |
| 2024-12-16 | S, sale reported on Form 4 | 65,359 | $30.7K | 2024-12-16 |
| 2024-12-17 | S, sale reported on Form 4 | 97,410 | $46.8K | 2024-12-19 |
| 2024-12-18 | S, sale reported on Form 4 | 74,764 | $35.1K | 2024-12-19 |
| 2024-12-19 | S, sale reported on Form 4 | 152,067 | $65.4K | 2024-12-19 |
| 2024-12-20 | S, sale reported on Form 4 | 119,805 | $50.3K | 2024-12-26 |
| 2024-12-23 | S, sale reported on Form 4 | 75,776 | $34.1K | 2024-12-26 |
| 2024-12-24 | S, sale reported on Form 4 | 68,161 | $34.8K | 2024-12-26 |
| 2024-12-26 | S, sale reported on Form 4 | 83,817 | $45.3K | 2024-12-26 |
| 2024-12-27 | S, sale reported on Form 4 | 83,744 | $43.5K | 2024-12-31 |
| 2024-12-30 | S, sale reported on Form 4 | 86,545 | $41.5K | 2024-12-31 |
| 2024-12-31 | S, sale reported on Form 4 | 103,474 | $46.6K | 2024-12-31 |
Alector, Inc. (ALEC)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2023-09-11 | S, sale reported on Form 4 | 500,000 | $3.0M | 2023-09-13 |
Seer, Inc. (SEER)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Korsana Biosciences, Inc. (CYCN)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2023-08-09 | S, sale reported on Form 4 | 8 | $27 | 2023-08-11 |
Tectonic Therapeutic, Inc. (TECX)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2025-04-07 | S, sale reported on Form 4 | 500,000 | $8.6M | 2025-04-07 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1117003) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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