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SEC Form 4 history

SION (SION) insider trades

SION insider trading activity (SEC Form 4). Over the trailing 90 days, SION insiders filed 0 purchases totalling $0 and 4 sales totalling $26.7M — net SELLING of $26.7M. Most recent filing: May 29, 2026. Insider transactions are a Pro-tier alertable signal in the live Top Tier Newswire terminal — Form 4 filings reach the wire within minutes of acceptance by the SEC. Data shown publicly here is delayed 4 hours.

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Buys (90d)
0
$0
Sells (90d)
4
$26.7M
Net (90d)
-$26.7M
net selling
Most recent
May 29, 2026

Recent transactions

FiledInsiderRoleTypeSharesPriceValue
May 29, 2026Thompson Peter A.S Sale—$44.49$4Kfiling
May 29, 2026Orbimed Advisors LLCS Sale—$44.49$4Kfiling
May 11, 2026Orbimed Advisors LLCS Sale—$45.62$13.4Mfiling
May 11, 2026Thompson Peter A.S Sale—$45.62$13.4Mfiling