iRhythm Technologies Investor Presentation — June 2019

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©2019 iRhythm Technologies, Inc. Content is Confidential and Proprietary. 1

Investor Presentation

June 2019©2019 iRhythm Technologies, Inc. Content is Confidential and Proprietary. 2Certain data in this presentation was obtained from various external sources, and neither “iRhythm” or the “Company” nor its affiliates or representatives has verified such data with independent

sources. Accordingly, neither the Company nor any of its affiliates, advisers or representatives makes any representations as t o the accuracy of that data or undertakes to update such data

after the date of this presentation. Such data involves risks and uncertainties and is subject to change based on various facto rs.

The trademarks included herein are the property of the owners and are used for reference purposes only. Such use should not be construed as an endorsement of the products or services of

This presentation and the accompanying oral presentation include forward- looking statements. All statements other than statement s of historical facts, including statements regarding our future

results of operations and financial position, clinical results, strategy and plans, market size and opportunity, competitive position, industry environment, potential growth opportunities, business

model, and our expectations for future operations, are forward- looking statements. We have based these forward- looking statement s on our current expectations and projections about future

events and trends that we believe may affect our financial condition, results of operations, strategy, short -and long- term busi ness operations and objectives, and financial needs.

These forward- looking statements are subject to a number of risks, uncertainties and assumptions, including those described in “ Risk Factors” in our most recent 10- K filed with the SEC on

March 31, 2019. Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to ti me.It is not possible for our management to predict all risks,

nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any

forward -looking statements we may make. In light of these risks, uncertainties and assumptions, the forward- looking events and c ircumstances discussed in this presentation may not occur and

actual results could differ materially and adversely from those anticipated or implied in the forward- looking statements.

You should not rely upon forward- looking statements as predictions of future events. Although we believe that the expectations r eflected in the forward- looking statements are reasonable, we