Ionis Stock Drops 12% on Pricing of $500M Common Stock Offering

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Ionis Pharmaceuticals IONS announced that it is floating a secondary issue of 11.5 million shares of its common stock to the public at an issue price of $43.50 per share, amounting to nearly $500.3 million.

The company also granted an option to underwriters of the issue to purchase an additional 1.725 million shares at the same price.

The secondary offering is expected to close today.

Buy Why Did IONS Stock Fall?

Ionis’ shares fell more than 12% on Tuesday after the announcement. Though the issue does not significantly dilute the existing shareholder base, the issue price per share did not sit well with investors. The issue price was at a discount to the closing price on Monday, with the stock closing at $48.33.

Year to date, the stock has lost 16.3% compared with the industry’s 0.8% fall.

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Plans for the Proceeds

Management plans to use the net proceeds from this new issue and its existing cash balance to fund its independent commercial launches and support the clinical development of its pipeline candidates. Management will also use the proceeds for its general corporate purpose, including working capital requirements.

Ionis Boasts a Diverse Revenue Stream

Despite marketing no wholly-owned drug in its portfolio, Ionis enjoys a diverse stream of revenues, including commercial products and royalties and numerous sources of collaborative and R&D revenues. The company has collaboration deals with leading drugmakers/biotech companies, likeAstraZeneca AZN, Biogen BIIB, GSK plc GSK and Novartis, for developing and marketing its medicines.

IONS earns commercial revenues in the form of royalty payments on net sales of Spinraza, approved in the United States to treat spinal muscular atrophy (SMA) worldwide. Ionis licensed this drug to Biogen, which is responsible for commercializing it. Ionis and Biogen also market Qalsody, which was approved by the FDA in April 2023 for amyotrophic lateral sclerosis (ALS) with superoxide dismutase 1 (SOD1) mutations.

Last December, the FDA approved Wainua for treating patients with hereditary transthyretin-mediated amyloid polyneuropathy, commonly called hATTR-PN or ATTRv-PN. The drug has been developed in partnership with AstraZeneca. While Ionis and AstraZeneca will jointly market Wainua for ATTRv-PN in the United States, AZN has exclusive rights to commercialize Wainua outside U.S. markets. The drug was commercially launched in the United States in first-quarter 2024. Regulatory filings seeking approval for eplontersen in ATTRv-PN are under review in the EU and some other countries.