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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

Nothing of that kind in this period.

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