Tami Tillotson Martin - Feb 22, 2023 Form 4/A - Amendment Insider Report for SUPERNUS PHARMACEUTICALS, INC. (SUPN)

Role: Sr. V.P., Regulatory Affairs
Signature: /s/ Timothy C. Dec, as attorney-in-fact
Stock symbol: SUPN
Transactions as of: Feb 22, 2023
Transactions value $: -$11,147
Form type: 4/A - Amendment
Date filed: 4/12/2023, 05:00 PM
Date Of Original Report: Feb 24, 2023
Previous filing: Feb 21, 2023
Next filing: Feb 27, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SUPN	Common Stock	Award	$0	+750	+0.84%	$0.00	90.3K	Feb 22, 2023	Direct	F1
transaction	SUPN	Common Stock	Tax liability	-$11.1K	-289	-0.32%	$38.57	90K	Feb 22, 2023	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SUPN	Restricted Stock Units	Disposed to Issuer	$0	-750	-25%	$0.00	2.25K	Feb 22, 2023	Common Stock	750		Direct	F3, F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Includes an aggregate of 853 shares acquired by the Reporting Person through the Issuer's Employee Stock Purchase Plan.
F2	Represents the number of shares of common stock withheld by the Company to satisfy tax withholding requirements in connection with the RSU vesting.
F3	Each restricted stock unit represents the right to receive one share of Supernus common stock upon vesting.
F4	These restricted stock units will be settled in common stock upon vesting, which will occur in four equal annual installments, beginning on February 22, 2023.