To: Ionis Pharmaceuticals, Inc. Carlsbad, CA 92010 Attention: General Counsel Email: legalnotices@ionisph.comIonis Pharmaceuticals Inc • April 13th, 2021 • Pharmaceutical preparations • New York
Company FiledApril 13th, 2021 Industry JurisdictionThe purpose of this letter agreement (this “Confirmation”) is to confirm the terms and conditions of the call option transaction entered into between [_______] (“Dealer”) and Ionis Pharmaceuticals, Inc. (“Counterparty”) as of the Trade Date specified below (the “Transaction”). This letter agreement constitutes a “Confirmation” as referred to in the ISDA Master Agreement specified below. Each party further agrees that this Confirmation together with the Agreement evidence a complete binding agreement between Counterparty and Dealer as to the subject matter and terms of the Transaction to which this Confirmation relates, and shall supersede all prior or contemporaneous written or oral communications with respect thereto.
IONIS PHARMACEUTICALS, INC. AND U.S. BANK NATIONAL ASSOCIATION, as Trustee INDENTURE Dated as of April 12, 2021 0% Convertible Senior Notes due 2026Ionis Pharmaceuticals Inc • April 13th, 2021 • Pharmaceutical preparations • New York
Company FiledApril 13th, 2021 Industry JurisdictionINDENTURE dated as of April 12, 2021 between IONIS PHARMACEUTICALS, INC., a Delaware corporation, as issuer (the “Company,” as more fully set forth in Section 1.01) and U.S. BANK NATIONAL ASSOCIATION, a national banking association, as trustee (the “Trustee,” as more fully set forth in Section 1.01).