Insiders / Boyce Sarah
Boyce Sarah
CIK 1629383personinsider
Companies
2
First seen
Jan 9, 2026
Last activity
Mar 2, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Avidity Biosciences, Inc. · RNA | 0 | — |
| Atrium Therapeutics, Inc. · RNA | — | — |
All securities held
1 position · latest reported per filing
| Company | Security | Shares |
|---|---|---|
| Atrium Therapeutics, Inc. | Stock Option (Right to Buy)Derivative | 20,000 |
Activity
InsidersInstitutions
This person's insider trades (Form 4), across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Jan 7, 2026 | Sell | RNA Avidity Biosciences, Inc. Common Stock | $619.4K | -9K -2.94% | 283,394 0.18% of shares | medium |
| Jan 21, 2026 | Sell | RNA Avidity Biosciences, Inc. Common Stock | $579.1K | -8K -2.89% | 269,007 0.17% of shares | medium |
| Jan 21, 2026 | Sell | RNA Avidity Biosciences, Inc. Common Stock | $463.2K | -6K -2.26% | 277,000 0.18% of shares | medium |
| Feb 27, 2026 | Grant | RNA Atrium Therapeutics, Inc. Stock Option (Right to Buy) | — | +20K | 20,000 0.12% of shares | low |
| Feb 27, 2026 | Other | RNA Avidity Biosciences, Inc. Stock Option (Right to Buy) | — | -165K -100.00% | 0 0.00% of shares | low |
| Feb 27, 2026 | Other | RNA Avidity Biosciences, Inc. Stock Option (Right to Buy) | — | -300K -100.00% | 0 0.00% of shares | low |
| Feb 27, 2026 | Other | RNA Avidity Biosciences, Inc. Stock Option (Right to Buy) | — | -200K -100.00% | 0 0.00% of shares | low |
| Feb 27, 2026 | Other | RNA Avidity Biosciences, Inc. Stock Option (Right to Buy) | — | -400K -100.00% | 0 0.00% of shares | low |
| Feb 27, 2026 | Other | RNA Avidity Biosciences, Inc. Stock Option (Right to Buy) | — | -425K -100.00% | 0 0.00% of shares | low |
| Feb 27, 2026 | Other | RNA Avidity Biosciences, Inc. Stock Option (Right to Buy) | — | -300K -100.00% | 0 0.00% of shares | low |