US Stock Insider Trading | IDEAYA Biosciences Discloses 4 Insider Transactions on February 2

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February 2, 2026, IDEAYA Biosciences (IDYA) disclosed four insider trading transactions. Executive Ruiz Briseno Andres purchased 1,253 shares on November 28, 2025.

【Recent Insider Transactions】

Disclosure Date Position Name Transaction Date Buy/Sell Quantity Price per Share/USD Total Amount/USD
February 2, 2026 Executive Ruiz Briseno Andres November 28, 2025 Buy 1253 16.91 $21,200
February 2, 2026 Executive Snyder Douglas B. November 28, 2025 Buy 2080 16.91 $35,200
February 2, 2026 Executive Ruiz Briseno Andres November 29, 2024 Buy 682 23.26 $15,900
February 19, 2025 Director Hata Yujiro S February 18, 2025 Buy 12,800 19.52 $250,000
June 27, 2024 Executive Throne Jason June 27, 2024 Buy 47,100 7.01 $329,900
June 27, 2024 Executive Throne Jason June 27, 2024 Buy 6,424 13.34 $85,700
May 31, 2024 Executive WHITE MICHAEL ANTHONY May 29, 2024 Sell 27,600 36.23 $1,001,600
May 31, 2024 Executive WHITE MICHAEL ANTHONY May 29, 2024 Buy 28,500 12.86 $368,500
May 31, 2024 Executive WHITE MICHAEL ANTHONY May 29, 2024 Sell 851 36.78 $31,300
May 16, 2024 Director Hata Yujiro S May 16, 2024 Sell 30,100 41.73 $1,255,500

【Company Profile】

IDEAYA Biosciences, Inc., headquartered in South San Francisco, California, was incorporated in Delaware in June 2015. The company is a precision medicine firm focused on oncology, dedicated to discovering and developing targeted therapies for patient populations selected through molecular diagnostics. Their approach combines extensive capabilities in identifying and validating translational biomarkers with small molecule drug discovery to select patient groups most likely to benefit from their targeted therapies under development. They are applying these capabilities across various precision medicine areas, including direct targeting of oncogenic pathways and synthetic lethality, representing an emerging class of precision medicine targets.

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