December 28, 2023 · Form 4 insider transaction
Birchler Brian sold 11,029 shares of Ionis Pharmaceuticals, Inc. at $50.50 per share, a transaction worth $557.0K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 5 days after the transaction.
Represents a "net exercise" of outstanding stock options. The reporting person received 471 shares of common stock on net exercise of option to purchase 11,500 shares of common stock. Pursuant to the terms of the Company's 2011 Equity Incentive Plan, the Company withheld 11,029 shares of common stock underlying the option for payment of the exercise price and tax withholdings using the closing stock price on December 28, 2023 of $50.50.