Director Joseph Klein III sold 22,321 shares for $1.7M (blended avg $75.55), reducing stake by 67% to 11.0K shares
Director Joseph Klein III executed 2 separate sales on 2026-04-01, totaling 22,321 shares for $1,686,301.88 at an average price of $75.55 per share, reducing his holdings from 33,335 to 11,014 shares (-67.0%). The timing is noteworthy: the stock now trades at $74.79, down 4.9% in the past 30 days and 6.1% over 90 days from transaction date. Examining his same-ticker history at IONS reveals a pattern of recent selling activity in early March 2026 that has each shown negative 30-day returns (-5.5%, -6.5%, -7.5%), and his 0 of 2 measurable 90-day outcomes on prior IONS sells were well-timed (stock fell after sale). However, his cross-ticker track record is mixed: 5 prior sells averaged +35.5% 90-day return, indicating most have been poorly timed on other stocks. The company remains unprofitable (net income $-128.6M against $156.7M quarterly revenue) despite strong 33.8% annual revenue growth, which may provide context for insider share reduction decisions.