Form 4: IDEAYA Biosciences CEO Sells Shares
Insider Transaction (Form 4)
Yujiro S Hata, President and CEO and a Director of IDEAYA Biosciences, Inc., sold 26,338 shares of common stock on October 6, 2026.
Summary
- Option exercise/conversion: acquired 26,338 Common Stock at $4.31 ($113,517) on October 6, 2026; holds 717,033 after (Direct).
- Open-market sale: disposed of 25,538 Common Stock at $37.39 ($954,787) on October 6, 2026; holds 691,495 after (Direct).
- Open-market sale: disposed of 800 Common Stock at $38.26 ($30,610) on October 6, 2026; holds 690,695 after (Direct).
- Option exercise/conversion: disposed of 26,338 Stock Option (right to buy) on October 6, 2026; holds 23,116 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $985,397 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Yujiro S Hata — Director, Officer (President and CEO)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-10-06 | Option exercise/conversion | Common Stock | 26,338 | $4 | $113.5K | 717,033 |
| 2026-10-06 | Open-market sale | Common Stock | 25,538 | $37 | $954.8K | 691,495 |
| 2026-10-06 | Open-market sale | Common Stock | 800 | $38 | $30.6K | 690,695 |
| 2026-10-06 | Option exercise/conversion | Stock Option (right to buy) | 26,338 | — | — | 23,116 |
Key Dates
| Date | Description |
|---|---|
| 2026-10-06 | Option exercise/conversion (26,338 shares) |
| 2026-10-06 | Open-market sale (25,538 shares) |
| 2026-10-06 | Open-market sale (800 shares) |
| 2026-10-06 | Option exercise/conversion (26,338 shares) |
Keywords
insider transaction, Form 4, IDYA, IDEAYA Biosciences, Inc., bearish, Yujiro S Hata
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