Boyce Sarah
SEC insider (Form 3/4/5 filer). CIK 0001629383. Director at Atrium Therapeutics, Inc. (RNA) and 2 other issuers. 23 reported Form 4/5 transactions since Sep 2024; latest on Sep 18, 2026. Located in SAN DIEGO, CA.
Companies Boyce Sarah has filed insider reports for
- Atrium Therapeutics, Inc. (RNA): Director
- Contineum Therapeutics, Inc. (CTNM): Director
- Avidity Biosciences, Inc. (RNAM): Director, Officer, President and CEO
Boyce Sarah
CIK: 0001629383
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (23 total)
- Sep 18, 2026RNA
Atrium Therapeutics, Inc.
Tax PaymentDirect126.4K shares at avg. $8.95$1.1M - Jun 26, 2026CTNM
Contineum Therapeutics, Inc.
AwardDirectStock Option (right to buy)
19K shares- - Feb 27, 2026RNA
Atrium Therapeutics, Inc.
AwardDirectStock Option (Right to Buy)
20K shares- - Feb 27, 2026RNAM
Avidity Biosciences, Inc.
DispositionDirect474.9K shares- - Jan 21, 2026RNA
Avidity Biosciences, Inc.
SaleDirect8K shares at avg. $72.45$579K - Jan 21, 2026RNA
Avidity Biosciences, Inc.
SaleDirect6.4K shares at avg. $72.45$463K - Jan 7, 2026RNA
Avidity Biosciences, Inc.
SaleDirect8.6K shares at avg. $72.23$619K - Dec 18, 2025RNA
Avidity Biosciences, Inc.
GiftDirect29.2K shares- - Dec 17, 2025RNA
Avidity Biosciences, Inc.
Tax PaymentDirect15.7K shares at avg. $71.87$1.1M - Dec 17, 2025RNA
Avidity Biosciences, Inc.
AwardDirect31K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 18, 2026 |  RNA Atrium Therapeutics, Inc. | Tax Payment | 126,418 | $8.95 | $1,131,441 | Direct |
| Jun 26, 2026 |  CTNM Contineum Therapeutics, Inc. | Award Stock Option (right to buy) | 19,000 | - | - | Direct |
| Feb 27, 2026 | RNA Atrium Therapeutics, Inc. | Award Stock Option (Right to Buy) | 20,000 | - | - | Direct |
| Feb 27, 2026 |  RNAM Avidity Biosciences, Inc. | Disposition | 474,861 | - | $0 | Direct |
| Jan 21, 2026 | RNA Avidity Biosciences, Inc. | Sale | 7,993 | $72.45 | $579,093 | Direct |
| Jan 21, 2026 | RNA Avidity Biosciences, Inc. | Sale | 6,394 | $72.45 | $463,245 | Direct |
| Jan 7, 2026 | RNA Avidity Biosciences, Inc. | Sale | 8,576 | $72.23 | $619,444 | Direct |
| Dec 18, 2025 | RNA Avidity Biosciences, Inc. | Gift | 29,159 | - | - | Direct |
| Dec 17, 2025 | RNA Avidity Biosciences, Inc. | Tax Payment | 15,742 | $71.87 | $1,131,378 | Direct |
| Dec 17, 2025 | RNA Avidity Biosciences, Inc. | Award | 31,000 | - | - | Direct |
1-10 of 23 transactions