Insider Shareholders with Direct Ownership of Ionis Pharmaceuticals Inc (IONS)
This section provides a comprehensive overview of the insiders with direct ownership of Ionis Pharmaceuticals Inc (IONS). You can find detailed information about the size and nature of each insider's ownership stake, as well as the latest updates on their holdings.
IONIS PHARMACEUTICALS INC Insider List
| Insider | Adquired | Disposed | Held | # of Trades | Last Transaction |
|---|---|---|---|---|---|
|
Brett P Monia
Chief Executive Officer |
724,112 | 573,013 | 179,572 $12.5 Million | 54 |
Oct 06, 2025
Reduced 0.24%
|
|
Spencer R Berthelsen
Director |
86,030 | 31,000 | 156,013 $10.9 Million | 11 |
Jul 15, 2025
Added 2.55%
|
|
Elizabeth L Hougen
EVP, Finance & CFO |
262,203 | 184,161 | 110,500 $7.72 Million | 31 |
Sep 30, 2025
Reduced 31.07%
|
|
C Frank Bennett
EVP, Chief Scientific Officer |
235,402 | 185,167 | 82,679 $5.77 Million | 45 |
Sep 05, 2025
Reduced 6.77%
|
|
B Lynne Parshall
Director |
173,411 | 179,531 | 61,344 $4.28 Million | 26 |
Oct 15, 2025
Reduced 7.54%
|
|
Richard S Geary
EVP, Chief Development Officer |
323,732 | 294,488 | 59,657 $4.17 Million | 53 |
Nov 06, 2025
Reduced 23.47%
|
|
Frederick T Muto
Director |
42,914 | 15,000 | 59,597 $4.16 Million | 5 |
Jul 15, 2022
Added 4.28%
|
|
Michael R Hayden
Director |
50,742 | 0 | 54,298 $3.79 Million | 9 |
Jul 15, 2025
Added 6.99%
|
|
Patrick R. O'Neil
EVP CLO & General Counsel |
347,624 | 314,879 | 53,889 $3.76 Million | 50 |
Oct 06, 2025
Reduced 5.67%
|
|
Eugene Schneider
EVP, Chf Clinical Develop Ofcr |
129,072 | 90,754 | 51,507 $3.6 Million | 27 |
Sep 03, 2025
Reduced 12.27%
|
|
Brian Birchler
EVP, Corp and Development Ops |
68,584 | 55,083 | 48,826 $3.41 Million | 21 |
Nov 06, 2025
Reduced 14.08%
|
|
Joan E Herman
Director |
40,752 | 0 | 46,086 $3.22 Million | 8 |
Jul 15, 2025
Added 8.13%
|
|
Joseph Loscalzo
Director |
64,530 | 45,508 | 36,330 $2.54 Million | 10 |
Oct 31, 2025
Reduced 30.58%
|
|
Onaiza Cadoret Manier
EVP, Chf GL Pdt Str & Oper Ofc |
57,520 | 21,695 | 35,825 $2.5 Million | 18 |
Feb 02, 2024
Reduced 5.6%
|
|
Eric Swayze
EVP Research |
142,758 | 117,574 | 30,453 $2.13 Million | 36 |
Oct 06, 2025
Reduced 18.36%
|
|
Joseph Baroldi
EVP, Chief Business Officer |
104,988 | 78,300 | 30,301 $2.12 Million | 19 |
Oct 06, 2025
Reduced 5.09%
|
|
Allene M. Diaz
Director |
22,089 | 3,721 | 18,368 $1.28 Million | 7 |
Aug 22, 2025
Reduced 7.21%
|
|
Shannon L. Devers
EVP, Chief Human Resources Ofc |
24,277 | 14,692 | 17,494 $1.22 Million | 7 |
Oct 16, 2025
Reduced 6.73%
|
|
Joseph Klein Iii
Director |
23,774 | 18,111 | 16,346 $1.14 Million | 10 |
Nov 15, 2023
Reduced 10.9%
|
|
Peter N Reikes
Director |
10,666 | 0 | 14,222 $993,264 | 3 |
Oct 15, 2021
Added 11.11%
|
|
Kyle Jenne
EVP, Chf GL Pdt Str Ofcr |
12,226 | 3,016 | 11,199 $782,138 | 2 |
Apr 16, 2025
Reduced 21.22%
|
|
Michael J. Yang
Director |
6,010 | 0 | 6,010 $419,738 | 2 |
Jul 15, 2025
Added 40.43%
|
|
Stanley T Crooke
Exec Chairman of the Board |
74,437 | 74,437 | 2,021 $141,146 | 9 |
Jan 26, 2021
Reduced 93.34%
|