Yujiro S. Hata serves as Executive at IDEAYA Biosciences, Inc., where they oversee executive responsibilities. Since joining the company, Yujiro S. Hata has executed 28 insider transactions totaling $17.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 30, 2026 involved receiving (via award) 600,000 shares valued at $0.
Yujiro S. Hata currently holds 600,000 shares of IDEAYA Biosciences, Inc. (IDYA), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Yujiro S. Hata has been a net seller of IDYA stock. They have purchased $0 and sold $17.6M worth of shares.
Yujiro S. Hata's most recent insider trade was on Jan 30, 2026, when they sold 600,000 shares at $0.00 per share.
Get notified when new Form 4 filings are submitted
| $41.73 |
| Planned |
| May 16, 2024 | IDYA | $148.4K | Option Exercise | 34,433 | $4.31 | Planned |
| May 16, 2024 | IDYA | $184.3K | Sale | 4,349 | $42.37 | Planned |
| May 15, 2024 | IDYA | $361.4K | Option Exercise | 83,856 | $4.31 | Planned |
| May 15, 2024 | IDYA | $22.2K | Sale | 503 | $44.12 | Planned |
| May 15, 2024 | IDYA | $1.3M | Sale | 29,761 | $43.48 | Planned |
| May 15, 2024 | IDYA | $2.3M | Sale | 53,592 | $42.57 | Planned |
| May 14, 2024 | IDYA | $96.4K | Sale | 2,303 | $41.84 | Planned |
| May 14, 2024 | IDYA | $2.3M | Sale | 54,408 | $41.60 | Planned |
| May 14, 2024 | IDYA | $244.4K | Option Exercise | 56,711 | $4.31 | Planned |
| Feb 9, 2024 | IDYA | $1.1M | Sale | 23,557 | $45.54 | Planned |
| Feb 9, 2024 | IDYA | $101.5K | Option Exercise | 23,557 | $4.31 | Planned |
| Feb 8, 2024 | IDYA | $3.4M | Sale | 75,815 | $45.15 | Planned |
| Feb 8, 2024 | IDYA | $326.8K | Option Exercise | 75,815 | $4.31 | Planned |
| Feb 1, 2024 | IDYA | $28.1K | Sale | 624 | $45.00 | Planned |
| Feb 1, 2024 | IDYA | $180 | Sale | 4 | $45.01 | Planned |
| Feb 1, 2024 | IDYA | $2.7K | Option Exercise | 628 | $4.31 | Planned |
| Jan 16, 2024 | IDYA | $2.5M | Sale | 62,739 | $40.17 | Planned |
| Jan 16, 2024 | IDYA | $270.4K | Option Exercise | 62,739 | $4.31 | Planned |
| Jan 12, 2024 | IDYA | $52.8K | Option Exercise | 12,261 | $4.31 | Planned |
| Jan 12, 2024 | IDYA | $490.9K | Sale | 12,261 | $40.04 | Planned |
| Dec 15, 2023 | IDYA | $2.6M | Sale | 75,000 | $35.03 | Planned |
| Dec 15, 2023 | IDYA | $323.3K | Option Exercise | 75,000 | $4.31 | Planned |
| Apr 12, 2023 | IDYA | $50.0K | Option Exercise | 11,601 | $4.31 | Discretionary |
| Dec 22, 2020 | IDYA | $34.5K | Option Exercise | 8,000 | $4.31 | Discretionary |
| Apr 15, 2020 | IDYA | $205.0K | Option Exercise | 47,564 | $4.31 | Discretionary |
| Jul 30, 2019 | IDYA | $64.7K | Option Exercise | 15,000 | $4.31 | Discretionary |