IDEAYA Biosciences, Inc.
IDYA- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001676725
In the last 90 days, IDEAYA Biosciences, Inc. insiders filed 0 open-market purchases and 1 sale; 285 institutions reported holding it in 13F filings for Q2 2026, worth $3.80B in total; no superinvestor holds it.
Holders of 5% or more of IDYA
Holders whose latest Schedule 13D or 13G filing reports 5% or more of IDEAYA Biosciences, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 9.70%8.38M shares | – | Feb 5, 20251 filing | Feb 5, 2025 | SEC |
| Janus Henderson Group PLC | 13G/A | 6.80%5.86M shares | – | Feb 14, 20251 filing | Feb 14, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
2 Schedule 13D and 13G filings on IDEAYA Biosciences, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Feb 14, 202512:24 PM ET | Janus Henderson Group PLC | 13G/A | 6.80%5.86M shares | – | Dec 31, 2024 | SEC |
| Feb 5, 20251:23 PM ET | BlackRock, Inc. | 13G/A | 9.70%8.38M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell IDEAYA Biosciences, Inc. shares.
No Form 144 notices for IDEAYA Biosciences, Inc. are on file.