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IDEAYA Biosciences, Inc.

IDYA Net buying
CIK 0001676725 #1584 in the set updated 17 Sep 2026
Bought (12 mo)
$1.65M
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$382.13K
$0.00 on a plan · $382.13K straight out of an exercise
Sold at will
$0.00
0 of 1 sales
Net
+$1.27M
+$1.65M against sales at will

By person

4 insiders · 2 transactions
39.4×

Yujiro S. Hata holds 39.4 times base salary in stock. $27.64M of shares against $700.00K in salary for 2025.

Salary from the company's own proxy. The shares are what Yujiro S. Hata last reported holding, valued at $40.01, the price Common Stock was last bought or sold at on the open market here, on 7 Jul 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Stein Jeffrey
Director
$1.65M (1)
—
+$1.65M
54,281
0.0563%
$2.17M
+1,168%
Ruiz Briseno Andres
Chief Accounting Officer
—
$382.13K (1) scheduled
−$382.13K
26,466
0.0274%
$1.06M
+7.9%
Hata Yujiro S
President and CEO
—
—
—
690,695
0.7158%
$27.64M
+1.9%
Snyder Douglas B.
SVP, General Counsel
—
—
—
2,080
0.0022%
$83.23K
—

Individual transactions

1
Insider
Date
Role
Action
Shares
Price
Amount
Stein Jeffrey
2 Mar 2026
Director
Buy
50,000
$32.96
$1.65M
Show all 2 transactions →

What was left out

Form 4 filings counted 15
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 1
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 11,844
History held since 28 May 2019