Ruddy Marcella K. insider trades
Ruddy Marcella K. has filed 16 Form 4s with the SEC that we hold, for Tectonic Therapeutic, Inc. (TECX) (Chief Medical Officer), Sionna Therapeutics, Inc. (SION) (Director) and Upstream Bio, Inc. (UPB) (Director). Across all of them we count 0 purchases worth $0 and 3 sales worth $363.0K reported on Form 4. In the last 12 months: 0 purchases ($0) and 3 sales ($363.0K). The largest single trade was a sale of 10,000 shares of Tectonic Therapeutic, Inc. worth $300.0K, dated 2026-03-06. The first filing on our record is dated 2024-06-24 and the latest 2026-10-02.
Tectonic Therapeutic, Inc. (TECX)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2026-03-06 | S, sale reported on Form 4 | 10,000 | $300.0K | 2026-03-09 |
| 2026-04-01 | S, sale reported on Form 4 | 1,000 | $31.1K | 2026-04-03 |
| 2026-05-04 | S, sale reported on Form 4 | 1,065 | $31.9K | 2026-05-06 |
Sionna Therapeutics, Inc. (SION)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Upstream Bio, Inc. (UPB)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Counted from the Form 4 filings this reporting owner (SEC CIK 2023849) 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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