Atrium Therapeutics, Inc (RNA) insider trading
Every open-market stock purchase and sale by Atrium Therapeutics, Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Insiders sold $4.2M over the last 12 months (13 sales). No open-market buys.
- Last insider buy: Roderick Wong (C-suite exec), $14.4M, 5 years ago.
Last 12 months: insiders bought $0 (0 buys) and sold $4.2M (13 sales). Last close $8.00 on Oct 21, 2026.
Recent RNA insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Sep 18, 2026 | Sarah Boyce (Insider) | Sold (not open market) | $1.1M |
| Sep 18, 2026 | W. Michael Flanagan (Insider) | Sold (not open market) | $204K |
| Sep 18, 2026 | Steven George Hughes (C-suite exec) | Sold (not open market) | $192K |
| Sep 18, 2026 | Kathleen P. Gallagher (Insider) | Sold (not open market) | $104K |
| Sep 18, 2026 | Husam Younis (C-suite exec) | Sold (not open market) | $100K |
| Sep 18, 2026 | Rocio Martin Hoyos (C-suite exec) | Sold (not open market) | $74.5K |
| Sep 18, 2026 | Brendan R. Winslow (CFO) | Sold (not open market) | $60.3K |
| Sep 18, 2026 | Stephanie Kenney (Insider) | Sold (not open market) | $21.3K |
| Apr 20, 2026 | Brendan R. Winslow (CFO) | Bought (not open market) | — |
| Apr 20, 2026 | Steven George Hughes (C-suite exec) | Bought (not open market) | — |
| Apr 20, 2026 | Steven George Hughes (C-suite exec) | Bought (not open market) | — |
| Apr 20, 2026 | Stephanie Kenney (Insider) | Bought (not open market) | — |
| Apr 20, 2026 | Stephanie Kenney (Insider) | Bought (not open market) | — |
| Apr 20, 2026 | Husam Younis (C-suite exec) | Bought (not open market) | — |
| Apr 20, 2026 | Husam Younis (C-suite exec) | Bought (not open market) | — |
| Apr 20, 2026 | Rocio Martin Hoyos (C-suite exec) | Bought (not open market) | — |
| Apr 20, 2026 | Rocio Martin Hoyos (C-suite exec) | Bought (not open market) | — |
| Apr 20, 2026 | Kathleen P. Gallagher (Insider) | Bought (not open market) | — |
| Apr 20, 2026 | Kathleen P. Gallagher (Insider) | Bought (not open market) | — |
| Apr 20, 2026 | Brendan R. Winslow (CFO) | Bought (not open market) | — |
| Feb 27, 2026 | W. Michael Flanagan (Insider) | Bought (not open market) | — |
| Feb 27, 2026 | Sarah Boyce (Insider) | Bought (not open market) | — |
| Feb 27, 2026 | Troy Edward Wilson (Insider) | Bought (not open market) | — |
| Feb 27, 2026 | Simona Skerjanec (Insider) | Bought (not open market) | — |
| Feb 27, 2026 | Carsten Boess (Insider) | Bought (not open market) | — |
Who's trading RNA
- Stephanie Kenney, Insider: other filings, last Sep 18, 2026
- Sarah Boyce, CEO: sold $1.7M (3 sales), last Sep 18, 2026
- Husam Younis, C-suite exec: other filings, last Sep 18, 2026
- W. Michael Flanagan, Officer: sold $645K (3 sales), last Sep 18, 2026
- Kathleen P. Gallagher, C-suite exec: other filings, last Sep 18, 2026
- Brendan R. Winslow, CFO: other filings, last Sep 18, 2026
- Rocio Martin Hoyos, C-suite exec: other filings, last Sep 18, 2026
- Steven George Hughes, C-suite exec: sold $526K (3 sales), last Sep 18, 2026
- Carsten Boess, Director: other filings, last Feb 27, 2026
- Simona Skerjanec, Director: other filings, last Feb 27, 2026
- Troy Edward Wilson, Director: other filings, last Feb 27, 2026
- Teresa McCarthy, Officer: sold $354K (3 sales), last Jan 21, 2026
- Arthur A Levin, Director: sold $127K (1 sale), last Jan 21, 2026
- Michael F MacLean, CFO: sold $472K (3 sales), last Jan 21, 2026
- Charles Calderaro III, CTO: sold $269K (1 sale), last Jan 7, 2026
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