Ionis Pharmaceuticals Inc

Ownership Transactions Reported by 23 Insiders

Symbol
IONS on Nasdaq
Location
2855 Gazelle Court, Carlsbad, CA

Insiders trading volume in the past year

Ionis Pharmaceuticals Inc executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Brett P. Monia Chief Executive Officer, Director $41.4M -$15.2M -26.9% Oct 6, 2025
Hougen Elizabeth L EVP, Finance & CFO $12.8M -$3.59M -21.9% Sep 30, 2025
Richard S. Geary EVP, Chief Development Officer $8.61M -$14.6M -62.8% Nov 5, 2025
C. Frank Bennett EVP, Chief Scientific Officer $8.26M -$3.36M -28.9% Sep 5, 2025
Onaiza Cadoret-Manier EVP,Chf GL Pdt Str & Oper Ofc $7.95M Feb 2, 2024
Patrick R. O'neil EVP CLO & General Counsel $7.83M -$12.9M -62.2% Oct 6, 2025
Eugene Schneider EVP, Chf Clinical Develop Ofcr $7.31M -$1.87M -20.3% Sep 3, 2025
Brian Birchler EVP, Corp and Development Ops $7.21M -$2.53M -26% Nov 6, 2025
Eric Swayze EVP Research $6.13M -$3.1M -33.6% Oct 15, 2025
Joseph Baroldi EVP, Chief Business Officer $6.05M -$4.09M -40.4% Oct 6, 2025
Berthelsen Spencer R Director $5.2M Jul 15, 2025
Joseph H. Wender Director $4.81M -$6.4M -57.1% Oct 30, 2025
B. Lynne Parshall Director $4.4M -$1.59M -26.5% Oct 15, 2025
Shannon L. Devers EVP, Chief Human Resources Ofc $4.07M -$863K -17.5% Oct 15, 2025
Muto Frederick T Director $3.44M Jul 15, 2022
Joseph Loscalzo Director $2.73M -$2.16M -44.2% Oct 31, 2025
Kyle Jenne EVP, Chf GL Pdt Str Ofcr $2.12M -$85.5K -3.88% Apr 15, 2025
Michael R. Hayden Director $1.82M +$659K +56.9% Jul 15, 2025
Joan E. Herman Director $1.69M Jul 15, 2025
Peter N. Reikes Director $1.25M Oct 15, 2021
Allene M. Diaz Director $781K -$60.7K -7.21% Aug 22, 2025
Joseph Klein III Director $688K -$3.36M -83% Sep 3, 2025
Michael J. Yang Director $453K Jul 15, 2025

Recent Insider Transactions by Companies or Individuals for Ionis Pharmaceuticals Inc

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.