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IONIS PHARMACEUTICALS INC

For the period ended Dec 31, 2024. Filed Feb 19, 2025.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2024 · Filed Feb 19, 2025

IONS$31.00-21.4%Stored close · as of Nov 9, 2026

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Contents

Item 2. Properties

As of February 13, 2025, the following are the primary facilities in which we operate:

Property DescriptionLocationSquare FootageOwned or LeasedInitial Lease Term End DateLease Extension Options
Laboratory and office space facilityCarlsbad, CA176,300Leased2037Two, five-year options to extend
Office and meeting space facilityCarlsbad, CA74,000Leased2037Two, five-year options to extend
Manufacturing facilityCarlsbad, CA26,800Owned
Manufacturing support facilityCarlsbad, CA25,800Leased2026One, five-year option to extend
Office space facilityBoston, MA14,300Leased2029One, five-year option to extend
Office space facilityCarlsbad, CA5,800Leased2027None
Warehouse facilityCarlsbad, CA4,200Leased2028None
Office space facilityDublin, Ireland3,900Leased2025None

We believe that our current and future facilities will be adequate for the foreseeable future. Refer to Part IV, Section 15, Note 7, Long-Term Obligations and Commitments, in the Notes to the Consolidated Financial Statements for details on real estate transactions.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.