Hata Yujiro S
SEC insider (Form 3/4/5 filer). CIK 0001649119. President and CEO at IDEAYA Biosciences, Inc. (IDYA) and 1 other issuer. 8 reported Form 4/5 transactions since Sep 2024; latest on Oct 6, 2026. Located in SOUTH SAN FRANCISCO, CA.
Companies Hata Yujiro S has filed insider reports for
- IDEAYA Biosciences, Inc. (IDYA): Director, Officer, President and CEO
- ENANTA PHARMACEUTICALS INC (ENTA): Director
Hata Yujiro S
CIK: 0001649119
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (8 total)
- Oct 6, 2026IDYA
IDEAYA Biosciences, Inc.
SaleDirect25.5K shares at avg. $37.39$955K - Oct 6, 2026IDYA
IDEAYA Biosciences, Inc.
SaleDirect800 shares at avg. $38.26$31K - Oct 6, 2026IDYA
IDEAYA Biosciences, Inc.
ExerciseDirect26.3K shares at avg. $4.31$114K - Mar 11, 2026ENTA
ENANTA PHARMACEUTICALS INC
AwardDirectStock Option (right to buy)
20K shares- - Jan 30, 2026IDYA
IDEAYA Biosciences, Inc.
AwardDirectStock Option (right to buy)
600K shares- - Mar 13, 2025ENTA
ENANTA PHARMACEUTICALS INC
AwardDirectStock Option (right to buy)
15.7K shares- - Feb 27, 2025IDYA
IDEAYA Biosciences, Inc.
AwardDirectStock Option (right to buy)
600K shares- - Feb 18, 2025IDYA
IDEAYA Biosciences, Inc.
ExerciseDirect12.8K shares at avg. $19.52$250K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Oct 6, 2026 |  IDYA IDEAYA Biosciences, Inc. | Sale | 25,538 | $37.39 | $954,787 | Direct |
| Oct 6, 2026 | IDYA IDEAYA Biosciences, Inc. | Sale | 800 | $38.26 | $30,610 | Direct |
| Oct 6, 2026 | IDYA IDEAYA Biosciences, Inc. | Exercise | 26,338 | $4.31 | $113,517 | Direct |
| Mar 11, 2026 |  ENTA ENANTA PHARMACEUTICALS INC | Award Stock Option (right to buy) | 20,000 | - | - | Direct |
| Jan 30, 2026 | IDYA IDEAYA Biosciences, Inc. | Award Stock Option (right to buy) | 600,000 | - | - | Direct |
| Mar 13, 2025 | ENTA ENANTA PHARMACEUTICALS INC | Award Stock Option (right to buy) | 15,700 | - | - | Direct |
| Feb 27, 2025 | IDYA IDEAYA Biosciences, Inc. | Award Stock Option (right to buy) | 600,000 | - | - | Direct |
| Feb 18, 2025 | IDYA IDEAYA Biosciences, Inc. | Exercise | 12,808 | $19.52 | $250,012 | Direct |
1-8 of 8 transactions