0000874015-25-000091.txt : 20250224 0000874015-25-000091.hdr.sgml : 20250224 20250224165528 ACCESSION NUMBER: 0000874015-25-000091 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250220 FILED AS OF DATE: 20250224 DATE AS OF CHANGE: 20250224 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: O'NEIL PATRICK R. CENTRAL INDEX KEY: 0001564926 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-19125 FILM NUMBER: 25657955 MAIL ADDRESS: STREET 1: C/O IONIS PHARMACEUTICALS, INC. STREET 2: 2855 GAZELLE COURT CITY: CARLSBAD STATE: CA ZIP: 92010 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: IONIS PHARMACEUTICALS INC CENTRAL INDEX KEY: 0000874015 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 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 2025-02-20 0 0000874015 IONIS PHARMACEUTICALS INC IONS 0001564926 O'NEIL PATRICK R. 2855 GAZELLE COURT CARLSBAD CA 92010 0 1 0 0 EVP CLO & General Counsel 1 Common Stock 2025-02-20 4 S 0 1207 32.35 D 56245 D Shares sold pursuant to a Rule 10b5-1 Trading Plan adopted by the reporting person on February 21, 2024. Patrick R. O'Neil 2025-02-24