IDEAYA Biosciences, Inc.

IDYANASDAQHealthcare● Active

$31.48

+$3.19(+11.28%)

Market Cap$2.8B

P/E Ratio—

52W High$39.28

52W Low$20.455

Avg Volume1.1M

Open$28.84

Beta-0.05

Overview

IDEAYA Biosciences, Inc. (IDYA) Insider Trading

Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.

SEC EDGAR · FMP · IDYA · as of Jun 8, 2026

Activity summary

Buy transactions

P-Purchase only

Sell transactions

12 Months

Buy/Sell ratio

∞

Buy/Sell (by trades)

Overall sentiment

BULLISH

↑ Buy 100%Active transactions only · RSU vesting excluded0% Sell ↓

IDEAYA Biosciences, Inc. insiders have been net buyers of shares over the past 12 Months, which may signal confidence in the company's outlook.

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only

As of Jun 8, 2026

IDYA insider buying and selling by quarter

IDYA insider selling · IDYA insider buying stocks · quarterly insider activity

Total insider buying (incl. awards)Total insider selling

1.6M775K0

2024 Q1

2024 Q2

2024 Q3

2024 Q4

2025 Q1

2025 Q2

2025 Q4

2026 Q1

Mobile shows last 4Q · Desktop shows full 8Q

▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters

As of Jun 8, 2026

Active insiders

Most active in past 12 months · IDYA ceo insider trading

Showing all insiders · Click a card to filter the transactions table below

▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API

Recent insider transactions

IDYA executive sell shares · IDYA board member insider trading · IDYA insider trading SEC filing

Showing 47 most recent · Common Stock · Form 4 only

Scroll horizontally to see all columns

Date	Insider	Type	Shares	Price	Value	After trans.	Filing
Mar 2, 2026	Stein Jeffrey Director	Purchase	50,000	$32.96	$1.65M⚡	54,281	Form 4
Nov 28, 2025	Snyder Douglas B. SVP, General Counsel	Award	1,041	$16.91	$18K	2,080	Form 4
May 30, 2025	Snyder Douglas B. SVP, General Counsel	Award	1,039	$16.91	$18K	1,039	Form 4
Nov 28, 2025	Ruiz Briseno Andres See Remarks	Award	1,253	$16.91	$21K	26,466	Form 4
Nov 29, 2024	Ruiz Briseno Andres See Remarks	Award	682	$23.26	$16K	25,213	Form 4
Feb 18, 2025	Hata Yujiro S President and CEO · Director	Option	12,808	$19.52	$250K	690,695	Form 4
Jun 27, 2024	Throne Jason Chief Legal Officer	Option	47,060	$7.01	$330K	63,484	Form 4
Jun 27, 2024	Throne Jason Chief Legal Officer	Option	6,424	$13.34	$86K	16,424	Form 4
May 29, 2024	WHITE MICHAEL ANTHONY Chief Scientific Officer	Option	28,500	$12.86	$367K	28,500	Form 4
May 29, 2024	WHITE MICHAEL ANTHONY Chief Scientific Officer	Sale	27,649	$36.23	$1.00M⚡	851	Form 4
May 29, 2024	WHITE MICHAEL ANTHONY Chief Scientific Officer	Sale	851	$36.78	$31K	0	Form 4
May 15, 2024	Hata Yujiro S President and CEO · Director	Option	83,856	$4.31	$361K	761,743	Form 4
May 14, 2024	Hata Yujiro S President and CEO · Director	Option	56,711	$4.31	$244K	734,598	Form 4
May 16, 2024	Hata Yujiro S President and CEO · Director	Option	34,433	$4.31	$148K	712,320	Form 4
May 15, 2024	Hata Yujiro S President and CEO · Director	Sale	53,592	$42.57	$2.28M⚡	708,151	Form 4
May 16, 2024	Hata Yujiro S President and CEO · Director	Sale	30,084	$41.73	$1.26M⚡	682,236	Form 4
May 14, 2024	Hata Yujiro S President and CEO · Director	Sale	54,408	$41.60	$2.26M⚡	680,190	Form 4
May 15, 2024	Hata Yujiro S President and CEO · Director	Sale	29,761	$43.48	$1.29M⚡	678,390	Form 4
May 15, 2024	Hata Yujiro S President and CEO · Director	Sale	503	$44.12	$22K	677,887	Form 4
May 16, 2024	Hata Yujiro S President and CEO · Director	Sale	4,349	$42.37	$184K	677,887	Form 4
May 14, 2024	Hata Yujiro S President and CEO · Director	Sale	2,303	$41.84	$96K	677,887	Form 4
Feb 9, 2024	Ruiz Briseno Andres See Remarks	Sale	2,000	$46.02	$92K	24,531	Form 4
Feb 8, 2024	Hata Yujiro S President and CEO · Director	Option	75,815	$4.31	$327K	753,702	Form 4
Feb 9, 2024	Hata Yujiro S President and CEO · Director	Option	23,557	$4.31	$102K	701,444	Form 4
Feb 9, 2024	Hata Yujiro S President and CEO · Director	Sale	23,557	$45.54	$1.07M⚡	677,887	Form 4

Stein Jeffrey

Director

Purchase

Date

Mar 2

50,000

Price

$32.96

Value

$1.65M ⚡

View Form 4 on SEC.gov

Snyder Douglas B.

SVP, General Counsel

Award

Date

Nov 28

1,041

Price

$16.91

Value

$18K

View Form 4 on SEC.gov

Snyder Douglas B.

SVP, General Counsel

Award

Date

May 30

1,039

Price

$16.91

Value

$18K

View Form 4 on SEC.gov

Ruiz Briseno Andres

See Remarks

Award

Date

Nov 28

1,253

Price

$16.91

Value

$21K

View Form 4 on SEC.gov

Ruiz Briseno Andres

See Remarks

Award

Date

Nov 29

682

Price

$23.26

Value

$16K

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Option

Date

Feb 18

12,808

Price

$19.52

Value

$250K

View Form 4 on SEC.gov

Throne Jason

Chief Legal Officer

Option

Date

Jun 27

47,060

Price

$7.01

Value

$330K

View Form 4 on SEC.gov

Throne Jason

Chief Legal Officer

Option

Date

Jun 27

6,424

Price

$13.34

Value

$86K

View Form 4 on SEC.gov

WHITE MICHAEL ANTHONY

Chief Scientific Officer

Option

Date

May 29

28,500

Price

$12.86

Value

$367K

View Form 4 on SEC.gov

WHITE MICHAEL ANTHONY

Chief Scientific Officer

Sale

Date

May 29

27,649

Price

$36.23

Value

$1.00M ⚡

View Form 4 on SEC.gov

WHITE MICHAEL ANTHONY

Chief Scientific Officer

Sale

Date

May 29

851

Price

$36.78

Value

$31K

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Option

Date

May 15

83,856

Price

$4.31

Value

$361K

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Option

Date

May 14

56,711

Price

$4.31

Value

$244K

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Option

Date

May 16

34,433

Price

$4.31

Value

$148K

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Sale

Date

May 15

53,592

Price

$42.57

Value

$2.28M ⚡

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Sale

Date

May 16

30,084

Price

$41.73

Value

$1.26M ⚡

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Sale

Date

May 14

54,408

Price

$41.60

Value

$2.26M ⚡

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Sale

Date

May 15

29,761

Price

$43.48

Value

$1.29M ⚡

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Sale

Date

May 15

503

Price

$44.12

Value

$22K

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Sale

Date

May 16

4,349

Price

$42.37

Value

$184K

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Sale

Date

May 14

2,303

Price

$41.84

Value

$96K

View Form 4 on SEC.gov

Ruiz Briseno Andres

See Remarks

Sale

Date

Feb 9

2,000

Price

$46.02

Value

$92K

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Option

Date

Feb 8

75,815

Price

$4.31

Value

$327K

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Option

Date

Feb 9

23,557

Price

$4.31

Value

$102K

View Form 4 on SEC.gov

Hata Yujiro S

President and CEO · Director

Sale

Date

Feb 9

23,557

Price

$45.54

Value

$1.07M ⚡

View Form 4 on SEC.gov

⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar

1 / 2

▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —

About IDYA insider trading

IDYA insider trades

IDEAYA Biosciences, Inc. (IDYA) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including Stein Jeffrey (Director), Snyder Douglas B. (SVP, General Counsel), Ruiz Briseno Andres (See Remarks). Over the past 12 months, 3 insiders have filed transactions with the SEC. IDYA insiders have been primarily buying, which may reflect pre-scheduled Rule 10b5-1 plan executions.

For IDEAYA Biosciences, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →

Buy/Sell signal logic

acquisitionOrDisposition field:

A = Acquisition (buy) · D = Disposition (sell)

RSU vesting (M-Exempt) excluded from sentiment

Form 4SEC filing required within 2 business days of any insider transaction

10b5-1Pre-scheduled trading plan that allows insiders to sell on autopilot

Open MktDirect purchase or sale on the open market (excludes awards, options)

Ownership SEC filings Financial statements Price history Forecast & ratings Earnings

Frequently asked questions

IDYA insider trading · 5 questions

The insiders of IDEAYA Biosciences, Inc. (IDYA) include executives and directors such as Stein Jeffrey (Director), Snyder Douglas B. (SVP, General Counsel), Ruiz Briseno Andres (See Remarks), among others. Over the past 12 months, 3 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.

IDYA board member insider tradingwho are IDYA insidersIDYA insider rosterIDEAYA Biosciences, Inc. executives insider activity

▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026