SB
Sarah Boyce

Sarah Boyce insider trades: Atrium Therapeutics (RNA) stock buys and sales

Atrium Therapeutics Last trade Jan 21, 2026 56 Form 4 filings
$1.0M
Sold, last 12 months
1 sale
$0
Bought, last 12 months
0 buys
26
Open-market trades
since 2016
8
Companies
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Sarah reports to the SEC

and 2 more companies

Open-market buys and sales

26 trades reported on SEC Form 4, newest first

DateStockTypeValue
Jan 21, 2026RNA↓ Sell10b5-1$1.0M
Sep 5, 2025RNA↓ Sell$2.5M
Aug 28, 2025RNA↓ Sell$1.2M
Mar 20, 2025RNA↓ Sell10b5-1$980K
Jan 21, 2025RNA↓ Sell10b5-1$297K
Dec 18, 2024RNA↓ Sell10b5-1$1.0M
Sep 23, 2024RNA↓ Sell10b5-1$1.4M
Aug 6, 2024RNA↓ Sell$1.2M
Jul 9, 2024RNA↓ Sell$1.1M
Jun 18, 2024RNA↓ Sell10b5-1$1.3M
Jun 14, 2024RNA↓ Sell$11.6M
Jun 4, 2024RNA↓ Sell$768K
May 7, 2024RNA↓ Sell$715K
Apr 2, 2024RNA↓ Sell$735K
Mar 12, 2024RNA↓ Sell$2.4M
Mar 1, 2024RNA↓ Sell$1.7M
Jan 22, 2024RNA↓ Sell10b5-1$52K
Feb 3, 2023RNA↓ Sell$1.2M
Nov 10, 2022OABI↑ Buy$101K
Aug 25, 2022RNA↓ Sell$1.1M
Aug 15, 2022RNA↓ Sell$2K
Mar 1, 2021BLI↓ Sell$611K
Jul 15, 2019AKCA↓ Sell$43K
Jan 16, 2018IONS↓ Sell$114K
Jan 17, 2017IONS↓ Sell$63K
Jan 19, 2016IONS↓ Sell$36K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other RNA insiders

Open-market trades in the last 12 months

About Sarah Boyce's insider trades

Sarah Boyce is an insider at Atrium Therapeutics (RNA). Since Jan 19, 2016, Sarah has reported 1 open-market purchase worth $101K and 25 sales worth $33.3M on SEC Form 4. In the last 12 months: 1 sale ($1.0M).

7 sales (18% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.

Their filings also include grants and awards (32 filings), option exercises (18 filings), other transactions (5 filings), shares withheld for taxes (2 filings). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every RNA insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.