Patrick R. O'Neil, EVP CLO and General Counsel at Ionis Pharmaceuticals Inc. ($IONS), made 15 open market sales of company shares over the past year, totaling about $15.8 million. His latest sale occurred on March 9, 2026. These sales rank him 801st among 11,678 insiders by value, surpassing the average of $8.6 million across 6.4 transactions per insider. He recorded no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 9, 2026 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 10148 | $75.25 | 62,211.0000 | 158,964,772 | 14.02% | 0.01% |
| Feb. 27, 2026 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | J | Common Stock | 376 | $48.87 | 72,359.0000 | 158,964,772 | 0.52% | 0.00% |
| Jan. 30, 2026 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 6179 | $83.53 | 71,983.0000 | 158,964,772 | 7.91% | 0.00% |
| Jan. 29, 2026 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Common Stock | 11991 | $0.00 | 78,162.0000 | 158,964,772 | 18.12% | 0.01% |
| Jan. 16, 2026 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 9191 | $75.84 | 66,171.0000 | 158,964,772 | 12.20% | 0.01% |
| Jan. 15, 2026 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 21473 | $0.00 | 75,362.0000 | 158,964,772 | 39.85% | 0.01% |
| Jan. 15, 2026 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Restricted Stock Unit | 9675 | $0.00 | 48,926.0000 | 158,964,772 | 24.65% | 0.01% |
| Jan. 15, 2026 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Restricted Stock Unit | 21473 | $0.00 | 39,251.0000 | 158,964,772 | 35.36% | 0.01% |
| Jan. 15, 2026 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Performance Restricted Stock Units | 25800 | $0.00 | 90,601.0000 | 158,964,772 | 39.81% | 0.02% |
| Jan. 2, 2026 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Non-Qualified Stock Option (right to buy) | 19350 | $0.00 | 19,350.0000 | 158,964,772 | 9999.99% | 0.01% |
| Oct. 6, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 10200 | $69.89 | 57,130.0000 | 158,964,772 | 15.15% | 0.01% |
| Oct. 6, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 10200 | $0.00 | 17,000.0000 | 158,964,772 | 37.50% | 0.01% |
| Oct. 6, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 3241 | $69.27 | 53,889.0000 | 158,964,772 | 5.67% | 0.00% |
| Oct. 6, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 10200 | $52.87 | 67,330.0000 | 158,964,772 | 17.85% | 0.01% |
| Oct. 2, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 34461 | $60.89 | 91,591.0000 | 158,964,772 | 60.32% | 0.02% |
| Oct. 2, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 30203 | $56.78 | 87,333.0000 | 158,964,772 | 52.87% | 0.02% |
| Oct. 2, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 34461 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.02% |
| Oct. 2, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 30203 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.02% |
| Oct. 2, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 34461 | $67.69 | 57,130.0000 | 158,964,772 | 37.62% | 0.02% |
| Oct. 2, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 30203 | $67.69 | 57,130.0000 | 158,964,772 | 34.58% | 0.02% |
| Sept. 30, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 14827 | $64.68 | 57,130.0000 | 158,964,772 | 20.61% | 0.01% |
| Sept. 30, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 14827 | $0.00 | 30,203.0000 | 158,964,772 | 32.93% | 0.01% |
| Sept. 29, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 10473 | $56.78 | 67,603.0000 | 158,964,772 | 18.33% | 0.01% |
| Sept. 29, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 10473 | $64.54 | 57,130.0000 | 158,964,772 | 15.49% | 0.01% |
| Sept. 30, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 14827 | $56.78 | 71,957.0000 | 158,964,772 | 25.95% | 0.01% |
| Sept. 29, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 10473 | $0.00 | 45,030.0000 | 158,964,772 | 18.87% | 0.01% |
| Sept. 12, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 1700 | $0.00 | 55,503.0000 | 158,964,772 | 2.97% | 0.00% |
| Sept. 12, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 1700 | $56.78 | 58,830.0000 | 158,964,772 | 2.98% | 0.00% |
| Sept. 12, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 1700 | $64.58 | 57,130.0000 | 158,964,772 | 2.89% | 0.00% |
| Sept. 9, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 20000 | $60.89 | 77,130.0000 | 158,964,772 | 35.01% | 0.01% |
| Sept. 9, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 1000 | $64.56 | 57,130.0000 | 158,964,772 | 1.72% | 0.00% |
| Sept. 9, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 20000 | $0.00 | 34,461.0000 | 158,964,772 | 36.72% | 0.01% |
| Sept. 9, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 1000 | $0.00 | 57,203.0000 | 158,964,772 | 1.72% | 0.00% |
| Sept. 9, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 1000 | $56.78 | 58,130.0000 | 158,964,772 | 1.75% | 0.00% |
| Sept. 9, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 20000 | $64.56 | 57,130.0000 | 158,964,772 | 25.93% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 49800 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.03% |
| Sept. 2, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 13050 | $54.51 | 57,130.0000 | 158,964,772 | 18.60% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 14000 | $37.58 | 71,130.0000 | 158,964,772 | 24.51% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 65475 | $60.89 | 5,655.0000 | 158,964,772 | 92.05% | 0.04% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 13050 | $32.60 | 18,705.0000 | 158,964,772 | 230.77% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 11375 | $61.42 | 7,330.0000 | 158,964,772 | 60.81% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 49800 | $53.77 | 57,130.0000 | 158,964,772 | 679.40% | 0.03% |
| Sept. 2, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 13050 | $0.00 | 17,517.0000 | 158,964,772 | 42.69% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 13050 | $0.00 | 4,467.0000 | 158,964,772 | 74.50% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 14000 | $0.00 | 8,942.0000 | 158,964,772 | 61.02% | 0.01% |
| Sept. 2, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 13050 | $32.60 | 70,180.0000 | 158,964,772 | 22.84% | 0.01% |
| Aug. 29, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | J | Common Stock | 331 | $27.71 | 57,130.0000 | 158,964,772 | 0.58% | 0.00% |
| Feb. 28, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | J | Common Stock | 554 | $28.21 | 56,799.0000 | 158,964,772 | 0.98% | 0.00% |
| Feb. 20, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 1207 | $32.35 | 56,245.0000 | 158,964,772 | 2.10% | 0.00% |
| Feb. 4, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 6165 | $31.62 | 57,452.0000 | 0 | 9.69% | 0.00% |
| Jan. 30, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Common Stock | 3820 | $0.00 | 65,023.0000 | 0 | 6.24% | 0.00% |
| Jan. 31, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 1406 | $32.49 | 63,617.0000 | 0 | 2.16% | 0.00% |
| Jan. 16, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 7360 | $32.83 | 61,203.0000 | 0 | 10.73% | 0.00% |
| Jan. 15, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Restricted Stock Unit | 33000 | $0.00 | 80,414.0000 | 0 | 69.60% | 0.00% |
| Jan. 15, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Restricted Stock Unit | 19690 | $0.00 | 60,724.0000 | 0 | 24.49% | 0.00% |
| Jan. 15, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 19690 | $0.00 | 68,563.0000 | 0 | 40.29% | 0.00% |
| Jan. 15, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Performance Restricted Stock Units | 22000 | $0.00 | 64,801.0000 | 0 | 51.40% | 0.00% |
| Jan. 2, 2025 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Non-Qualified Stock Option (right to buy) | 22000 | $0.00 | 22,000.0000 | 0 | 9999.99% | 0.00% |
| Feb. 2, 2024 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 1995 | $49.67 | 48,627.0000 | 0 | 3.94% | 0.00% |
| Aug. 30, 2024 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | J | Common Stock | 246 | $38.64 | 48,873.0000 | 0 | 0.51% | 0.00% |
| Feb. 1, 2024 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Common Stock | 3820 | $0.00 | 50,622.0000 | 0 | 8.16% | 0.00% |
| Feb. 2, 2024 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 1961 | $49.67 | 48,661.0000 | 0 | 3.87% | 0.00% |
| Jan. 25, 2024 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 6450 | $51.75 | 46,802.0000 | 0 | 12.11% | 0.00% |
| Jan. 16, 2024 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 20641 | $0.00 | 60,996.0000 | 0 | 51.15% | 0.00% |
| Jan. 17, 2024 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 7744 | $50.42 | 53,252.0000 | 0 | 12.70% | 0.00% |
| Jan. 16, 2024 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Restricted Stock Unit | 20641 | $0.00 | 47,414.0000 | 0 | 30.33% | 0.00% |
| Jan. 15, 2024 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Performance Restricted Stock Units | 17000 | $0.00 | 42,801.0000 | 0 | 65.89% | 0.00% |
| Jan. 15, 2024 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Restricted Stock Unit | 20400 | $0.00 | 68,055.0000 | 0 | 42.81% | 0.00% |
| Jan. 2, 2024 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Non-Qualified Stock Option (right to buy) | 27200 | $0.00 | 27,200.0000 | 0 | 9999.99% | 0.00% |
| Dec. 26, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Non-Qualified Stock Option (right to buy) | 20825 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| Dec. 26, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 20825 | $51.46 | 40,355.0000 | 0 | 34.04% | 0.00% |
| Dec. 26, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 20825 | $47.34 | 61,180.0000 | 0 | 51.60% | 0.00% |
| May 24, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 1527 | $41.70 | 40,355.0000 | 0 | 3.65% | 0.00% |
| Feb. 28, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | J | Common Stock | 301 | $30.52 | 41,882.0000 | 0 | 0.72% | 0.00% |
| Feb. 3, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Common Stock | 3822 | $0.00 | 43,501.0000 | 0 | 9.63% | 0.00% |
| Feb. 6, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 1920 | $40.86 | 41,581.0000 | 0 | 4.41% | 0.00% |
| Jan. 30, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 4500 | $39.42 | 44,179.0000 | 0 | 9.24% | 0.00% |
| Jan. 31, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 4500 | $39.71 | 39,679.0000 | 0 | 10.19% | 0.00% |
| Jan. 17, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Common Stock | 21871 | $0.00 | 56,515.0000 | 0 | 63.13% | 0.00% |
| Jan. 18, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | S | Common Stock | 7836 | $39.49 | 48,679.0000 | 0 | 13.87% | 0.00% |
| Jan. 17, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | M | Restricted Stock Unit | 21871 | $0.00 | 47,655.0000 | 0 | 31.46% | 0.00% |
| Jan. 15, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Restricted Stock Unit | 17207 | $0.00 | 69,526.0000 | 0 | 32.89% | 0.00% |
| Jan. 15, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Performance Restricted Stock Units | 14338 | $0.00 | 25,801.0000 | 0 | 125.08% | 0.00% |
| Jan. 3, 2023 | IONIS PHARMACEUTICALS INC | $IONS | O'NEIL PATRICK R. | EVP CLO & General Counsel | A | Non-Qualified Stock Option (right to buy) | 22942 | $0.00 | 22,942.0000 | 0 | 9999.99% | 0.00% |