NASDAQ: IONSIonis Pharmaceuticals Inc Stock Ownership - Who owns Ionis Pharmaceuticals?
Insider buying vs selling
Have Ionis Pharmaceuticals Inc insiders been buying or selling?
Buy
Sell
| Name | Role | Date | Shares | Price | Value |
|---|---|---|---|---|---|
| Joseph H. Wender | Director | 2025-12-01 | 7,429 | $81.23 | $603.49kSell |
| Joseph H. Wender | Director | 2025-12-01 | 20,571 | $80.67 | $1.66MSell |
| Joseph Klein Iii | Director | 2025-11-25 | 4,000 | $80.00 | $320.00kSell |
| Shannon L. Devers | EVP Chief Human Resources Ofc | 2025-11-25 | 16,777 | $80.91 | $1.36MSell |
| Shannon L. Devers | EVP Chief Human Resources Ofc | 2025-11-25 | 16,777 | $53.77 | $902.10kBuy |
| Joseph Klein Iii | Director | 2025-11-25 | 4,000 | $80.00 | $320.00kSell |
| Joseph Klein Iii | Director | 2025-11-25 | 4,000 | $80.00 | $320.00kSell |
| Joan E. Herman | Director | 2025-11-19 | 12,000 | $72.13 | $865.58kSell |
| Joan E. Herman | Director | 2025-11-19 | 32,000 | $72.13 | $2.31MSell |
| Joan E. Herman | Director | 2025-11-19 | 32,000 | $63.90 | $2.04MBuy |
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Net Insider Buy/Sell (L12M) Ownership
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IONS Shareholders
What type of owners hold Ionis Pharmaceuticals Inc stock?
Institutional
Insider
Retail
| Name | Hold | Shares | Value | Type |
|---|---|---|---|---|
| Fmr LLC | 14.63% | 23,689,038 | $1.89B | Institution |
| Vanguard Group Inc | 10.18% | 16,481,730 | $1.32B | Institution |
| T Rowe Price Investment Management Inc | 8.12% | 13,156,929 | $1.05B | Institution |
| Capital World Investors | 7.85% | 12,722,728 | $1.02B | Institution |
| Blackrock Inc | 6.45% | 10,447,940 | $834.48M | Institution |
| Wellington Management Group LLP | 4.07% | 6,588,811 | $526.25M | Institution |
| Lombard Odier Asset Management Europe Ltd | 4.01% | 6,494,000 | $518.68M | Institution |
| Bellevue Group Ag | 3.86% | 6,244,451 | $498.74M | Institution |
| State Street Corp | 2.71% | 4,388,651 | $350.52M | Institution |
| Deep Track Capital LP | 2.35% | 3,808,144 | $304.16M | Institution |
IONS vs Biotech Stocks
Ionis Pharmaceuticals Stock Ownership FAQ
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Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.
Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.