William T. Roberts - Mar 29, 2023 Form 4 Insider Report for RHYTHM PHARMACEUTICALS, INC. (RYTM)

Role: Chief Accounting Officer
Signature: /s/ Hunter Smith, Attorney-in-Fact for William T. Roberts
Stock symbol: RYTM
Transactions as of: Mar 29, 2023
Transactions value $: -$15,960
Form type: 4
Date filed: 3/31/2023, 09:38 PM
Previous filing: Feb 14, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RYTM	Common Stock	Options Exercise		+2.5K	+39.78%		8.78K	Mar 29, 2023	Direct	F1
transaction	RYTM	Common Stock	Sale	-$16K	-912	-10.38%	$17.50	7.87K	Mar 29, 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	RYTM	Restricted Stock Units	Options Exercise	$0	-2.5K	-33.33%	$0.00	5K	Mar 29, 2023	Common Stock	2.5K		Direct	F1, F3

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

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.
F2	The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 instruction solely with the intent to cover withholding taxes in connection with the vesting of certain previously reported restricted stock units.
F3	The restricted stock units vest or have vested as to 50% of the shares on each of March 29, 2024 and March 29, 2025. The restricted stock units have no expiration date.