Hayden Michael R, a director at IONIS Pharmaceuticals ($IONS), made one open market purchase of common shares in the last year, totaling nearly $478,000, with the most recent on May 1, 2025. This ranks him 916th among nearly 5,000 insiders by purchase value, below the average of $1.5 million across 3.3 transactions. He reported no open market sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | D | Stock Option (Right to Buy) | 27647 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.02% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | D | Stock Option (Right to Buy) | 56400 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.04% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | D | Stock Option (Right to Buy) | 45150 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.03% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | D | Stock Option (Right to Buy) | 27400 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.02% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | U | Common Stock | 80904 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.05% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | U | Common Stock | 103978 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.07% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | U | Common Stock | 61538 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.04% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | D | Stock Option (Right to Buy) | 2933 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.00% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | D | Stock Option (Right to Buy) | 25000 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.02% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | D | Stock Option (Right to Buy) | 12500 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.01% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | D | Stock Option (Right to Buy) | 7000 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.00% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | D | Stock Option (Right to Buy) | 7000 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.00% |
| Oct. 30, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | D | Stock Option (Right to Buy) | 22730 | $0.00 | 0.0000 | 157,880,203 | 100.00% | 0.01% |
| July 15, 2025 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | M | Common Stock | 4079 | $0.00 | 56,298.0000 | 158,964,772 | 7.81% | 0.00% |
| July 15, 2025 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | M | Restricted Stock Unit | 4079 | $0.00 | 9,897.0000 | 158,964,772 | 29.19% | 0.00% |
| July 1, 2025 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | 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 | Hayden Michael R | Director | A | Restricted Stock Unit | 5220 | $0.00 | 13,976.0000 | 158,964,772 | 59.62% | 0.00% |
| June 12, 2025 | AbCellera Biologics Inc. | $ABCL | Hayden Michael R | Director | A | Share option (right to buy) | 238864 | $0.00 | 899,843.0000 | 294,327,532 | 36.14% | 0.08% |
| May 1, 2025 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | P | Common Stock | 15000 | $31.86 | 52,219.0000 | 158,964,772 | 40.30% | 0.01% |
| Feb. 3, 2025 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | A | Stock Option (Right to Buy) | 56400 | $0.00 | 56,400.0000 | 104,714,613 | 9999.99% | 0.05% |
| Dec. 23, 2024 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | P | Common Stock | 2500 | $36.20 | 34,719.0000 | 0 | 7.76% | 0.00% |
| Dec. 23, 2024 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | P | Common Stock | 2500 | $36.23 | 37,219.0000 | 0 | 7.20% | 0.00% |
| July 1, 2024 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | A | Restricted Stock Unit | 4079 | $0.00 | 8,756.0000 | 0 | 87.21% | 0.00% |
| July 1, 2024 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | A | Non-Qualified Stock Option (right to buy) | 10111 | $0.00 | 10,111.0000 | 0 | 9999.99% | 0.00% |
| June 21, 2024 | AbCellera Biologics Inc. | $ABCL | Hayden Michael R | Director | A | Share option (right to buy) | 163934 | $0.00 | 660,979.0000 | 289,166,486 | 32.98% | 0.06% |
| Feb. 1, 2024 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | A | Stock Option (Right to Buy) | 45150 | $0.00 | 45,150.0000 | 71,172,870 | 9999.99% | 0.06% |
| Sept. 22, 2023 | AbCellera Biologics Inc. | $ABCL | Hayden Michael R | Director | P | Common Shares | 20000 | $4.91 | 1,441,642.0000 | 314,827,255 | 1.41% | 0.01% |
| Aug. 8, 2023 | AbCellera Biologics Inc. | $ABCL | Hayden Michael R | Director | P | Common Shares | 30000 | $5.90 | 1,421,642.0000 | 314,827,255 | 2.16% | 0.01% |
| July 17, 2023 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | M | Restricted Stock Unit | 1777 | $0.00 | 10,010.0000 | 0 | 15.08% | 0.00% |
| July 17, 2023 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | M | Common Stock | 1777 | $0.00 | 26,886.0000 | 0 | 7.08% | 0.00% |
| July 17, 2023 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | M | Common Stock | 5333 | $0.00 | 32,219.0000 | 0 | 19.84% | 0.00% |
| July 17, 2023 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | M | Restricted Stock Unit | 5333 | $0.00 | 4,677.0000 | 0 | 53.28% | 0.00% |
| July 3, 2023 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | A | Restricted Stock Unit | 4677 | $0.00 | 11,787.0000 | 0 | 65.78% | 0.00% |
| July 3, 2023 | IONIS PHARMACEUTICALS INC | $IONS | Hayden Michael R | Director | A | Non-Qualified Stock Option (right to buy) | 10321 | $0.00 | 10,321.0000 | 0 | 9999.99% | 0.00% |
| March 30, 2022 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | P | Common Stock | 6250 | $3.62 | 164,882.0000 | 0 | 3.94% | 0.00% |
| April 7, 2022 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | P | Common Stock | 10000 | $3.48 | 174,882.0000 | 0 | 6.06% | 0.00% |
| April 25, 2022 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | P | Common Stock | 10000 | $2.67 | 184,882.0000 | 0 | 5.72% | 0.00% |
| March 28, 2023 | 89bio, Inc. | $ETNB | Hayden Michael R | Not found | P | Common Stock | 61538 | $16.15 | 142,442.0000 | 34,806,349 | 76.06% | 0.18% |
| Feb. 9, 2023 | 89bio, Inc. | $ETNB | Hayden Michael R | Director | A | Stock Option (Right to Buy) | 27400 | $0.00 | 27,400.0000 | 34,806,349 | 9999.99% | 0.08% |