Q2 2021 Financial

Results and Business

Update

August 4, 2021

On Today's Earnings Call

Brett Monia, Ph.D.

Beth Hougen

Richard Geary, Ph.D.

Chief Executive Officer

Chief Financial Officer

Executive Vice President, Development

Eric Swayze, Ph.D.

Onaiza Cadoret-Manier

Executive Vice President, Research

Chief Corp. Development & Commercial Officer

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Forward Looking Language Statement

This presentation includes forward-looking statements regarding our business, financial guidance and the therapeutic and commercial potential of SPINRAZA® (nusinersen), TEGSEDI® (inotersen), WAYLIVRA® (volanesorsen) and Ionis' technologies and products in development. Any statement describing Ionis' goals, expectations, financial or other projections, intentions or beliefs is a forward-looking statement and should be considered an at-risk statement. Such statements are subject to certain risks and uncertainties, including those related to the impact COVID-19 could have on our business, and including those inherent in the process of discovering, developing and commercializing medicines that are safe and effective for use as human therapeutics, and in the endeavor of building a business around such medicines. Ionis' forward-looking statements also involve assumptions that, if they never materialize or prove correct, could cause its results to differ materially from those expressed or implied by such forward-looking statements. Although Ionis' forward-looking statements reflect the good faith judgment of its management, these statements are based only on facts and factors currently known by Ionis. As a result, you are cautioned not to rely on these forward-looking statements. These and other risks concerning Ionis' programs are described in additional detail in Ionis' annual report on Form 10-K for the year ended December 31, 2020 and our most recent Form 10-Q quarterly filing, which are on file with the SEC. Copies of these and other documents are available at www.ionispharma.com.

In this presentation, unless the context requires otherwise, "Ionis," "Company," "we," "our," and "us" refers to Ionis Pharmaceuticals and its subsidiaries.

Ionis Pharmaceuticals™ is a trademark of Ionis Pharmaceuticals, Inc. Akcea Therapeutics® is a registered trademark of Akcea Therapeutics, Inc. TEGSEDI® is a trademark of Akcea Therapeutics, Inc. WAYLIVRA® is a registered trademark of Akcea Therapeutics, Inc. SPINRAZA® is a registered trademark of Biogen.

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Introduction

Brett Monia, Ph.D. Chief Executive Officer

2021: Executing on our Key Strategic Objectives

Goals

Commercialize products of our own

Expand our drug discovery capabilities

12 or more marketed products in

2026

1H 2021 Progress

  • Completed integration of Akcea
  • Completed transition of Tegsedi and Waylivra to Sobi
  • Building capabilities to support multiple Ionis launches
  • Licensed transferrin receptor targeting technology from Bicycle
  • Advanced Genuity collaboration to identify novel targets
  • Broadened internal technology initiatives
  • Tofersen VALOR study placebo-controlled portion completed
  • Eplontersen NEURO-TTRansform study fully enrolled
  • Pelacarsen Lp(a) HORIZON study 50% enrolled
  • ION363 Phase 3 study for FUS-ALS initiated
  • IONIS-PKK-LRx positive Phase 2 study reported

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Ionis Pharmaceuticals Inc. published this content on 04 August 2021 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 04 August 2021 16:15:04 UTC.