IDYA insider buying and SEC filings, explained
IDEAYA Biosciences, Inc. · CIK 1676725
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- Pharmaceutical Preparations
- State of incorporation
- DE
- Fiscal year end
- Dec 31
Insider activity in the last 12 months
Bought
$1.6M
Insiders who bought
1
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$1.4M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 6, 2026 | Planned (10b5-1) | Yujiro S Hata (CEO and Director) sold 26,338 shares at about $37.41 ($985K), marked as a 10b5-1 plan trade. Holdings down 4% to 690,695 shares. | SEC filing Filed Oct 8, 2026, 7:03 PM ET |
| Jul 7, 2026 | Planned (10b5-1) | Briseno Andres Ruiz (Chief Accounting Officer) sold 9,550 shares at about $40.01 ($382K), marked as a 10b5-1 plan trade. Holdings down 27% to 26,466 shares. | SEC filing Filed Jul 9, 2026 |
| Mar 2, 2026 | Purchase (code P) | Jeffrey Stein (Director) bought 50,000 shares at about $32.96 ($1.6M), reported as a purchase (code P). Holdings up 999%+ to 54,281 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 2, 2026 |
15 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
| Filed | Items | Tag | Source |
|---|---|---|---|
| Nov 3, 2026, 8:04 AM ET 8-K | Earnings released (Item 2.02) | SEC filing |
Red flags are objective triggers only: the item or form filed, never an opinion.
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