Mottola Frank 4

What Happened
Frank Mottola, Senior Vice President & Chief Technical Operations Officer at Supernus Pharmaceuticals (SUPN), had 1,875 restricted stock units (RSUs) vest and be settled into common stock on Feb 25, 2026. To satisfy tax withholding, 977 of the vested shares were withheld by the company at an implied value of $50.69 per share (totaling $49,524). The filing records the vesting/settlement of the RSUs (award/acquisition) and the corresponding share withholding.

Key Details

• Transaction date: 2026-02-25 (filed 2026-02-26). Filing appears timely (next-day filing).
• Award: 1,875 RSUs vested/settled into common stock (coded A, acquired at $0).
• Tax withholding: 977 shares withheld (coded F) at $50.69/share = $49,524 withheld to cover taxes.
• Derivative entry: 1,875 shares shown as disposed to issuer (coded D) reflecting RSU settlement/cancellation (see footnotes).
• Shares owned after transaction: not specified in this filing.
• Footnotes: F1—shares withheld to satisfy tax withholding; F2—each RSU equals one share on vesting; F3—these RSUs vest in four equal annual installments beginning Feb 23, 2024.

Context
This was an RSU vesting and related tax-withholding transaction, not an open-market sale or purchase. Withholding shares to cover taxes is a routine administrative step and does not necessarily signal insider buying or selling intent. The derivative/disposition entries reflect the conversion/settlement of the RSUs into stock and the company’s withholding, not a separate market disposition.