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IDEAYA Biosciences, Inc. (IDYA)
NASDAQ: IDYA · Real-Time Price · USD
32.75-1.96 (-5.65%)
Insider Score
––Not scored
IDYA Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
IDYA Stock Insider Trading Activity
IDYA stock’s insider trading shows 3 sales on the open market for an estimated $1.37M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Hata Yujiro S CEO | Option exercise | 26,338 | $4.31 | $113.52K | 3.8% | 717,033 | Oct 6, 2026 | — | Form 4 |
| Hata Yujiro S CEO | Sell | 25,538 | $37.39 | $954.79K | 3.6% | 691,495 | Oct 6, 2026 | — | Form 4 |
| Hata Yujiro S CEO | Sell | 800 | $38.26 | $30.61K | 0.1% | 690,695 | Oct 6, 2026 | — | Form 4 |
| Ruiz Briseno Andres Other | Sell | 9,550 | $40.01 | $382.13K | 26.5% | 26,466 | Jul 7, 2026 | — | Form 4 |
| Ruiz Briseno Andres Other | Option exercise | 9,550 | $12.86 | $122.81K | 36.1% | 36,016 | Jul 7, 2026 | — | Form 4 |
| Stein Jeffrey Director | Buy | 50,000 | $32.96 | $1.65M | 1168% | 54,281 | Mar 2, 2026 | AFirst BuyStake DoublerDilution | Form 4 |
| Ruiz Briseno Andres Other | Award | 1,253 | $16.91 | $21.18K | 5.0% | 26,466 | Nov 28, 2025 | — | Form 4 |
| Snyder Douglas B. Other | Award | 1,041 | $16.91 | $17.60K | 100% | 2,080 | Nov 28, 2025 | — | Form 4 |
| Snyder Douglas B. Other | Award | 1,039 | $16.91 | $17.57K | New | 1,039 | May 30, 2025 | — | Form 4 |
| Ruiz Briseno Andres Other | Award | 682 | $23.26 | $15.86K | 2.8% | 25,213 | Nov 29, 2024 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Buy (P) — Open-market or private purchase
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
- Option exercise (M) — Exercise or conversion of an exempt derivative
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.