Transaction · 0001610717-26-000434

Hata Yujiro S

Hata Yujiro S, PRES, reported an open-market or private sale at IDEAYA Biosciences, Inc. involving 25538.000000 shares for an estimated $954786.65. Reported holdings after the transaction were 691495.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SPRES
IDYAIDEAYA Biosciences, Inc.
Filing timeOct 08
Trade dateOct 06, 2026
Filing · SECView on SEC
InsiderProfile
% of reported position traded3.56%Shares sold ÷ (holdings after + shares sold). Estimated position before: 717,033 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$41.84
Pre-filing
1mo ago +0.0%1w ago +0.0%1d ago +0.0%
Returns since
7d30d90d180d1y

IDYA price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
IDYA since 2026-10-08Filed yesterday · 1 day of post-filing data
Loading…
Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001610717-26-000434
Common Stock
Transaction date
Oct 06, 2026
Filed Oct 08, 2026, 11:03 PM · 2d delay
Shares
25.5k sh
$37.39 per share
Estimated value
-$954k
Computed from shares × price
Holdings after
691k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership 10b5-1 Detected
0score
Filing-only score

0

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

President and CEO

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    The transactions reported herein were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan, adopted on July 7, 2026, in which the majority of the shares acquired upon the exercise of s…

  2. F2

    This transaction was executed in multiple trades in prices ranging from $37.00 to $37.98, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person…

  3. F3

    This transaction was executed in multiple trades in prices ranging from $38.23 to $38.34, inclusive. The price reported in Column 4 above reflects the weighted average sale price. The Reporting Person…

  4. F4

    The shares subject to the option are fully vested and exercisable.

Original filing · 0001610717-26-000434
Related transactions

0 other filings

Same reporting owner
Recent company activity

0 recent txs

IDYA