SEC Insider Transactions from Hata Yujiro S.

Last updated: 2026-03-14 11:58 UTC | Total transactions: 43

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.

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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%