iRhythm Technologies, Inc. — Director's Dealing 2021

Feb 25, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: iRhythm Technologies, Inc. (IRTC)
CIK: 0001388658
Period of Report: 2021-02-23

Reporting Person: Day Mark J. (EVP, Research & Development)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-23	Common Stock	M	8300	$17	Acquired	38386	Direct
2021-02-23	Common Stock	M	971	$36.22	Acquired	39357	Direct
2021-02-23	Common Stock	M	123	$63.95	Acquired	39480	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-23	Employee Stock Option (right to buy)	$17.0	M	8300	Acquired	2026-10-20	Common Stock (8300.0)	Direct
2021-02-23	Employee Stock Option (right to buy)	$36.22	M	971	Acquired	2027-02-08	Common Stock (971.0)	Direct
2021-02-23	Employee Stock Option (right to buy)	$63.95	M	123	Acquired	2028-02-27	Common Stock (123.0)	Direct

Footnotes

F1: The option, originally granted for 33,998 shares, of which 16,713 have been exercised, vested as to 25% of the shares on September 21, 2017, and as to 1/48 of the shares each month thereafter.

F2: The option, originally granted for 23,300 shares, of which 8,252 have been exercised, vested as to 25% of the shares on March 1, 2018, and as to 1/48 of the shares each month thereafter.

F3: The option vests as to 25% of the shares on March 1, 2019, and as to 1/48 of the shares each month thereafter.