RHYTHM PHARMACEUTICALS, INC. — Director's Dealing 2017

Oct 4, 2017

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: RHYTHM PHARMACEUTICALS, INC. (RYTM)
CIK: 0001649904
Period of Report: 2017-10-04

Reporting Person: Ipsen, S.A. (10% Owner)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	599330	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Series A-1 Junior Convertible Preferred Stock	$		Common stock (45831)		Indirect
Series A Convertible Preferred Stock	$		Common Stock (167938)		Indirect

Footnotes

F1: At any time at the holder's election or upon the closing of the Issuer's initial public offering (the "IPO"), each share of the Issuer's series A-1 junior convertible preferred stock (the "Series A-1 Junior Preferred") is convertible into shares of the Issuer's common stock on a 9.17-for-one basis without payment or consideration. The Series A-1 Junior Preferred has no expiration date.

F2: At any time at the holder's election or upon the closing of the Issuer's initial public offering (the "IPO"), each share of the Issuer's series A convertible preferred stock (the "Series A Preferred") is convertible into shares of the Issuer's common stock on a 9.17-for-one basis without payment or consideration. The Series A Preferred has no expiration date.