iRhythm Technologies, Inc. — Director's Dealing 2017

May 12, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: iRhythm Technologies, Inc. (IRTC)
CIK: 0001388658
Period of Report: 2017-05-12

Reporting Person: de Clercq Casper L. (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-12	Common Stock	J	284747	—	Disposed	0	Indirect
2017-05-12	Common Stock	J	284747	—	Disposed	0	Indirect

Footnotes

F1: Shares were disposed via pro rata in-kind distribution of Issuer's common stock from Norwest Venture Partners XI, LP ("NVP XI") to its limited and general partners.

F2: The securities shown on Line 1 of Table I represent securities held of record by NVP XI. By virtue of his position as an officer of NVP Associates, LLC ("NVP Associates"), the managing member of the general partner of NVP XI, Casper de Clercq may be deemed to share voting and dispositive power with respect to such securities. Mr. de Clercq disclaims beneficial ownership of all such securities, except to the extent of any pecuniary interest therein.

F3: Shares were disposed via pro rata in-kind distribution of Issuer's common stock from Norwest Venture Partners XII, LP ("NVP XII") to its limited and general partners.

F4: The securities shown on Line 2 of Table I represent securities held of record by NVP XII. By virtue of his position as an officer of NVP Associates, the managing member of the general partner of NVP XII, Casper de Clercq may be deemed to share voting and dispositive power with respect to such securities. Mr. de Clercq disclaims beneficial ownership of all such securities, except to the extent of any pecuniary interest therein.