0000874015-25-000125.txt : 20250502 0000874015-25-000125.hdr.sgml : 20250502 20250502163826 ACCESSION NUMBER: 0000874015-25-000125 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250501 FILED AS OF DATE: 20250502 DATE AS OF CHANGE: 20250502 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Hayden Michael R CENTRAL INDEX KEY: 0001352908 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-19125 FILM NUMBER: 25909299 MAIL ADDRESS: STREET 1: C/O ASPREVA PHARMACEUTICALS CORPORATION STREET 2: 1203-4464 MARKHAM STREET CITY: VICTORIA STATE: A1 ZIP: V8Z 7X8 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: IONIS PHARMACEUTICALS INC CENTRAL INDEX KEY: 0000874015 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences EIN: 330336973 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 2855 GAZELLE COURT CITY: CARLSBAD STATE: CA ZIP: 92010 BUSINESS PHONE: 7609319200 MAIL ADDRESS: STREET 1: 2855 GAZELLE COURT CITY: CARLSBAD STATE: CA ZIP: 92010 FORMER COMPANY: FORMER CONFORMED NAME: ISIS PHARMACEUTICALS INC DATE OF NAME CHANGE: 19930328 4 1 edgardoc.xml PRIMARY DOCUMENT X0508 4 2025-05-01 0 0000874015 IONIS PHARMACEUTICALS INC IONS 0001352908 Hayden Michael R 2855 GAZELLE COURT CARLSBAD CA 92010 1 0 0 0 0 Common Stock 2025-05-01 4 P 0 15000 31.86 A 50219 D Common Stock 2000 I by Spouse The price reported in Column 4 is a weighted average price. These shares were purchase in multiple transactions at prices ranging from $31.50 to $32.09 inclusive. The reporting person undertakes to provide to Ionis Pharmaceuticals, Inc. any security holder of Ionis Pharmaceuticals, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) on this Form 4. These securities are held by Genworks 2 Consulting, Inc. ("Genworks 2"). The Reporting Person's spouse has sole voting and investment power with respect to the shares held by Genworks 2. By: Patrick R. O'Neil, attorney-in-fact For: Michael R. Hayden 2025-05-01