Chief Legal Officer
Mon, Jul 6, 2026
Jul 6
10,250 shares @ $43.60
Decreased holdings by -100.00%
Largest trade (out of 13)
Tax Sell-to-Cover
“This transaction was automatically executed pursuant to a Rule 10b5-1 trading plan adopted on June 5, 2025.”Form 4 footnote
Trade made by an officer
Automatic sale to cover taxes on a vest — not a discretionary trade
Price 13% above 200-day moving average
Small Cap stock — insider trades carry more weight
Recent insider activity at SION
Jul 7Orbimed Capital Gp Viii LlcSold$3.85mJun 30Orbimed Advisors LlcSold$5.27mMay 27Orbimed Advisors LlcSold$4.49kMay 11Orbimed Advisors LlcSold$8.53mMay 8Orbimed Advisors LlcSold$2.66mMay 7Orbimed Advisors LlcSold$2.17mApr 18Orbimed Advisors LlcSold$131.24kApr 17Orbimed Capital Gp Viii LlcSold$2.34m