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Disclosery

IDYA IDEAYA BIOSCIENCES INC

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Stock (common), issuer CIK 1676725

202 managers (206 13F filers) reported a position in IDYA shares at 2025-06-30, 96,817,440 shares in all. 30 filers opened a position and 31 filers sold out during the quarter.

Managers
202
13F filers
206
New
30
Added
78
Reduced
74
Sold out
31
Shares held by filers
96,817,440

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

The latest Form 4 transactions, non-derivative.
OwnerDateSharesPriceFiling
Hata Yujiro Sdirector, officer (President and CEO)2026-10-06-800 S$38.2626Form 4
Hata Yujiro Sdirector, officer (President and CEO)2026-10-06-25,538 S$37.3869Form 4
Hata Yujiro Sdirector, officer (President and CEO)2026-10-06+26,338 M$4.31Form 4

13F holders, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.
NOMURA ASSET MANAGEMENT CO LTDin group NOMURA ASSET MANAGEMENT CO LTD0$00%013F-HRTimelineGroupValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.

Events

  • Hata Yujiro S reported transactions in IDYA shares with no net change in a Form 4 filed 2026-10-08. 0001610717-26-000434

    Accepted , ingested