Boyce Sarah
Director · Officer · CTNM, RNA, RNAM
As of 2026-09-16, Boyce Sarah has 37 Form 4 transactions on record across 3 companies — 24 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in January in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-01-21 | RNA | Sale | 7,993 @ $72.45 | $579K | −2.9% of holding | 269,007 | Form 4 |
| 2026-01-21 | RNA | Sale | 6,394 @ $72.45 | $463K | −2.3% of holding | 277,000 | Form 4 |
| 2026-01-07 | RNA | Sale | 8,576 @ $72.23 | $619K | −2.9% of holding | 283,394 | Form 4 |
| 2025-09-05 | RNA | Sale | 50,000 @ $49.95 | $2.5M | −14.1% of holding | 305,871 | Form 4 |
| 2025-08-28 | RNA | Sale | 25,000 @ $49.39 | $1.2M | −7.6% of holding | 305,871 | Form 4 |
| 2025-03-20 | RNA | Sale | 31,540 @ $31.06 | $980K | −9.3% of holding | 305,871 | Form 4 |
| 2025-01-21 | RNA | Sale | 5,659 @ $28.59 | $162K | −1.6% of holding | 337,411 | Form 4 |
| 2025-01-21 | RNA | Sale | 4,738 @ $28.59 | $135K | −1.4% of holding | 343,070 | Form 4 |
| 2024-12-18 | RNA | Sale | 31,855 @ $32.66 | $1.0M | −10.7% of holding | 265,308 | Form 4 |
28 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-26 | CTNM | Award / grant | 19,000 | 19,000 | Form 4 |
| 2026-02-27 | RNA | Award / grant | 20,000 | 20,000 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 300,000 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 200,000 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 400,000 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 425,000 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 300,000 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 386,015 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 474,861 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 165,000 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 300,000 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 200,000 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 400,000 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 425,000 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 300,000 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 386,015 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 474,861 | 0 | Form 4 |
| 2026-02-27 | RNAM | Disposition | 165,000 | 0 | Form 4 |
| 2025-12-18 | RNA | Gift | 29,159 | 291,970 | Form 4 |
| 2025-12-17 | RNA | Withheld for tax | 15,742 | 321,129 | Form 4 |
| 2025-12-17 | RNA | Award / grant | 31,000 | 336,871 | Form 4 |
| 2025-09-05 | RNA | Option exercise | 50,000 | 355,871 | Form 4 |
| 2025-09-05 | RNA | Option exercise | 50,000 | 1,022,015 | Form 4 |
| 2025-08-28 | RNA | Option exercise | 25,000 | 330,871 | Form 4 |
| 2025-08-28 | RNA | Option exercise | 25,000 | 1,072,015 | Form 4 |
| 2025-06-26 | CTNM | Award / grant | 14,750 | 14,750 | Form 4 |
| 2025-01-06 | RNA | Award / grant | 82,500 | 347,808 | Form 4 |
| 2025-01-06 | RNA | Award / grant | 165,000 | 165,000 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.