Joseph Klein III, a director at Ionis Pharmaceuticals ($IONS), sold shares on the open market eight times over the past year, totaling $6.0 million. His most recent sale occurred on March 3, 2026. These sales rank 1,683rd among 11,678 insiders in our database, below the average sale value of $8.6 million across 6.4 transactions per insider. Klein made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 1, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 10321 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.01% |
| April 1, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 12000 | $38.06 | 23,114.0000 | 158,964,772 | 107.97% | 0.01% |
| April 1, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 10321 | $41.08 | 33,435.0000 | 158,964,772 | 44.65% | 0.01% |
| April 1, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 20105 | $75.50 | 13,330.0000 | 158,964,772 | 60.13% | 0.01% |
| April 1, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 2216 | $75.95 | 11,114.0000 | 158,964,772 | 16.62% | 0.00% |
| April 1, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 12000 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.01% |
| March 3, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 12000 | $40.05 | 28,446.0000 | 158,964,772 | 72.97% | 0.01% |
| March 3, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 6794 | $80.00 | 12,126.0000 | 158,964,772 | 35.91% | 0.00% |
| March 3, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 13526 | $79.17 | 18,920.0000 | 158,964,772 | 41.69% | 0.01% |
| March 3, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 4000 | $42.88 | 32,446.0000 | 158,964,772 | 14.06% | 0.00% |
| March 3, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 4000 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.00% |
| March 3, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 12000 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.01% |
| March 3, 2026 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 1012 | $80.82 | 11,114.0000 | 158,964,772 | 8.35% | 0.00% |
| Nov. 25, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 4000 | $80.00 | 16,446.0000 | 158,964,772 | 19.56% | 0.00% |
| Nov. 25, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 4000 | $0.00 | 20,446.0000 | 158,964,772 | 24.32% | 0.00% |
| Nov. 25, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 4000 | $80.00 | 16,446.0000 | 158,964,772 | 19.56% | 0.00% |
| Nov. 25, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 4000 | $0.00 | 8,000.0000 | 158,964,772 | 33.33% | 0.00% |
| Nov. 25, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 4000 | $0.00 | 4,000.0000 | 158,964,772 | 50.00% | 0.00% |
| Nov. 25, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 4000 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.00% |
| Nov. 25, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 4000 | $0.00 | 20,446.0000 | 158,964,772 | 24.32% | 0.00% |
| Nov. 25, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 4000 | $80.00 | 16,446.0000 | 158,964,772 | 19.56% | 0.00% |
| Nov. 25, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 4000 | $0.00 | 20,446.0000 | 158,964,772 | 24.32% | 0.00% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 12000 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 16000 | $0.00 | 32,446.0000 | 158,964,772 | 97.29% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 12000 | $0.00 | 44,446.0000 | 158,964,772 | 36.98% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 28000 | $60.00 | 16,446.0000 | 158,964,772 | 63.00% | 0.02% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 12000 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 16000 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 16000 | $0.00 | 32,446.0000 | 158,964,772 | 97.29% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 12000 | $0.00 | 44,446.0000 | 158,964,772 | 36.98% | 0.01% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 28000 | $60.00 | 16,446.0000 | 158,964,772 | 63.00% | 0.02% |
| Sept. 3, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 16000 | $0.00 | 0.0000 | 158,964,772 | 100.00% | 0.01% |
| July 1, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | A | Non-Qualified Stock Option (right to buy) | 11518 | $0.00 | 11,518.0000 | 158,964,772 | 9999.99% | 0.01% |
| July 1, 2025 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | A | Restricted Stock Unit | 5220 | $0.00 | 13,976.0000 | 158,964,772 | 59.62% | 0.00% |
| July 16, 2024 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 12000 | $24.42 | 28,446.0000 | 0 | 72.97% | 0.00% |
| July 16, 2024 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 12000 | $50.00 | 16,446.0000 | 0 | 42.19% | 0.00% |
| July 16, 2024 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Non-Qualified Stock Option (right to buy) | 12000 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| July 1, 2024 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | A | Non-Qualified Stock Option (right to buy) | 10111 | $0.00 | 10,111.0000 | 0 | 9999.99% | 0.00% |
| July 1, 2024 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | A | Restricted Stock Unit | 4079 | $0.00 | 8,756.0000 | 0 | 87.21% | 0.00% |
| May 3, 2024 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 930 | $42.90 | 16,446.0000 | 0 | 5.35% | 0.00% |
| May 3, 2024 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 1070 | $42.55 | 17,376.0000 | 0 | 5.80% | 0.00% |
| May 3, 2024 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 731 | $42.98 | 18,446.0000 | 0 | 3.81% | 0.00% |
| May 3, 2024 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 1269 | $42.59 | 19,177.0000 | 0 | 6.21% | 0.00% |
| May 3, 2024 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 682 | $42.94 | 20,446.0000 | 0 | 3.23% | 0.00% |
| May 3, 2024 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 1318 | $42.57 | 21,128.0000 | 0 | 5.87% | 0.00% |
| Nov. 15, 2023 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 2000 | $50.00 | 22,446.0000 | 0 | 8.18% | 0.00% |
| Sept. 26, 2023 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 2000 | $45.13 | 24,446.0000 | 0 | 7.56% | 0.00% |
| July 17, 2023 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 1777 | $0.00 | 24,668.0000 | 0 | 7.76% | 0.00% |
| July 17, 2023 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Restricted Stock Unit | 5333 | $0.00 | 4,677.0000 | 0 | 53.28% | 0.00% |
| July 18, 2023 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 3555 | $42.00 | 26,446.0000 | 0 | 11.85% | 0.00% |
| July 17, 2023 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Common Stock | 5333 | $0.00 | 30,001.0000 | 0 | 21.62% | 0.00% |
| July 17, 2023 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | M | Restricted Stock Unit | 1777 | $0.00 | 10,010.0000 | 0 | 15.08% | 0.00% |
| July 3, 2023 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | A | Non-Qualified Stock Option (right to buy) | 10321 | $0.00 | 10,321.0000 | 0 | 9999.99% | 0.00% |
| July 3, 2023 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | A | Restricted Stock Unit | 4677 | $0.00 | 11,787.0000 | 0 | 65.78% | 0.00% |
| Jan. 17, 2023 | IONIS PHARMACEUTICALS INC | $IONS | KLEIN JOSEPH III | Director | S | Common Stock | 2000 | $40.00 | 22,891.0000 | 0 | 8.04% | 0.00% |