Hata Yujiro S has filed 43 insider transactions across 2 companies since February 2023.
Most recent transaction: a grant/award of 20000 shares of ENANTA PHARMACEUTICALS INC ($ENTA) on March 11, 2026.
Activity breakdown: 0 open-market purchases and 14 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 11, 2026 | ENANTA PHARMACEUTICALS INC | $ENTA | Hata Yujiro S | Director | A | Stock Option (right to buy) | 20000 | $0.00 | 20,000.0000 | 29,019,344 | 9999.99% | 0.07% |
| Jan. 30, 2026 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | A | Stock Option (right to buy) | 600000 | $0.00 | 600,000.0000 | 88,485,238 | 9999.99% | 0.68% |
| March 13, 2025 | ENANTA PHARMACEUTICALS INC | $ENTA | Hata Yujiro S | Director | A | Stock Option (right to buy) | 15700 | $0.00 | 15,700.0000 | 0 | 9999.99% | 0.00% |
| Feb. 27, 2025 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | A | Stock Option (right to buy) | 600000 | $0.00 | 600,000.0000 | 81,678,069 | 9999.99% | 0.73% |
| Feb. 18, 2025 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Stock Option (right to buy) | 12808 | $0.00 | 182,192.0000 | 81,678,069 | 6.57% | 0.02% |
| Feb. 18, 2025 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Common Stock | 12808 | $19.52 | 690,695.0000 | 81,678,069 | 1.89% | 0.02% |
| May 14, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 2303 | $41.84 | 677,887.0000 | 57,519,929 | 0.34% | 0.00% |
| May 15, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Common Stock | 83856 | $4.31 | 761,743.0000 | 57,519,929 | 12.37% | 0.15% |
| May 15, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 53592 | $42.57 | 708,151.0000 | 57,519,929 | 7.04% | 0.09% |
| May 15, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 29761 | $43.48 | 678,390.0000 | 57,519,929 | 4.20% | 0.05% |
| May 15, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 503 | $44.12 | 677,887.0000 | 57,519,929 | 0.07% | 0.00% |
| May 14, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Common Stock | 56711 | $4.31 | 734,598.0000 | 57,519,929 | 8.37% | 0.10% |
| May 16, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 30084 | $41.73 | 682,236.0000 | 57,519,929 | 4.22% | 0.05% |
| May 16, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 4349 | $42.37 | 677,887.0000 | 57,519,929 | 0.64% | 0.01% |
| May 14, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Stock Option (right to buy) | 56711 | $0.00 | 167,743.0000 | 57,519,929 | 25.27% | 0.10% |
| May 15, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Stock Option (right to buy) | 83856 | $0.00 | 83,887.0000 | 57,519,929 | 49.99% | 0.15% |
| May 16, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Stock Option (right to buy) | 34433 | $0.00 | 49,454.0000 | 57,519,929 | 41.05% | 0.06% |
| May 16, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Common Stock | 34433 | $4.31 | 712,320.0000 | 57,519,929 | 5.08% | 0.06% |
| May 14, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 54408 | $41.60 | 680,190.0000 | 57,519,929 | 7.41% | 0.09% |
| March 6, 2024 | ENANTA PHARMACEUTICALS INC | $ENTA | Hata Yujiro S | Director | A | Stock Option (right to buy) | 15700 | $0.00 | 15,700.0000 | 0 | 9999.99% | 0.00% |
| March 1, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | A | Stock Option (right to buy) | 480000 | $0.00 | 480,000.0000 | 57,519,929 | 9999.99% | 0.83% |
| Feb. 9, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Common Stock | 23557 | $4.31 | 701,444.0000 | 57,519,929 | 3.48% | 0.04% |
| Feb. 8, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Common Stock | 75815 | $4.31 | 753,702.0000 | 57,519,929 | 11.18% | 0.13% |
| Feb. 8, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 75815 | $45.15 | 677,887.0000 | 57,519,929 | 10.06% | 0.13% |
| Feb. 9, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 23557 | $45.54 | 677,887.0000 | 57,519,929 | 3.36% | 0.04% |
| Feb. 8, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Stock Option (right to buy) | 75815 | $0.00 | 248,011.0000 | 57,519,929 | 23.41% | 0.13% |
| Feb. 9, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Stock Option (right to buy) | 23557 | $0.00 | 224,454.0000 | 57,519,929 | 9.50% | 0.04% |
| Feb. 1, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 4 | $45.01 | 677,887.0000 | 57,519,929 | 0.00% | 0.00% |
| Feb. 1, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Stock Option (right to buy) | 628 | $0.00 | 323,826.0000 | 57,519,929 | 0.19% | 0.00% |
| Feb. 1, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 624 | $45.00 | 677,891.0000 | 57,519,929 | 0.09% | 0.00% |
| Feb. 1, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Common Stock | 628 | $4.31 | 678,515.0000 | 57,519,929 | 0.09% | 0.00% |
| Jan. 16, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Common Stock | 62739 | $4.31 | 740,626.0000 | 57,519,929 | 9.26% | 0.11% |
| Jan. 16, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 62739 | $40.17 | 677,887.0000 | 57,519,929 | 8.47% | 0.11% |
| Jan. 12, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Stock Option (right to buy) | 12261 | $0.00 | 387,193.0000 | 57,519,929 | 3.07% | 0.02% |
| Jan. 16, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Stock Option (right to buy) | 62739 | $0.00 | 324,454.0000 | 57,519,929 | 16.20% | 0.11% |
| Jan. 12, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Common Stock | 12261 | $4.31 | 690,148.0000 | 57,519,929 | 1.81% | 0.02% |
| Jan. 12, 2024 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 12261 | $40.04 | 677,887.0000 | 57,519,929 | 1.78% | 0.02% |
| Dec. 15, 2023 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Stock Option (right to buy) | 75000 | $0.00 | 399,454.0000 | 41,444,696 | 15.81% | 0.18% |
| Dec. 15, 2023 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Common Stock | 75000 | $4.31 | 752,887.0000 | 41,444,696 | 11.06% | 0.18% |
| Dec. 15, 2023 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | S | Common Stock | 75000 | $35.03 | 677,887.0000 | 41,444,696 | 9.96% | 0.18% |
| April 12, 2023 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Common Stock | 11601 | $4.31 | 677,887.0000 | 41,444,696 | 1.74% | 0.03% |
| April 12, 2023 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | M | Stock Option (right to buy) | 11601 | $0.00 | 474,454.0000 | 41,444,696 | 2.39% | 0.03% |
| Feb. 24, 2023 | IDEAYA Biosciences, Inc. | $IDYA | Hata Yujiro S | President and CEO | A | Stock Option (right to buy) | 400000 | $0.00 | 400,000.0000 | 41,444,696 | 9999.99% | 0.97% |