IDEAYA BIOSCIENCES INC

Ticker: IDYA CUSIP: 45166A102 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 2,862 Value ($000) $99 Avg Close $31.88 Range $26.05 - $37.08

Q3 2025

Shares 1,122 Value ($000) $0 Avg Close $24.19 Range $20.50 - $28.01

Q1 2024

Shares 1,497 Value ($000) $0 Avg Close $43.00 Range $33.46 - $47.73

Q2 2023

Shares 1,498 Value ($000) $0 Avg Close $20.56 Range $13.29 - $26.35

Q1 2023

Shares 2 Value ($000) $0 Avg Close $16.66 Range $13.41 - $18.89

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,862	$99	$31.88	$26.05 - $37.08
Q3 2025	1,122	$0	$24.19	$20.50 - $28.01
Q1 2024	1,497	$0	$43.00	$33.46 - $47.73
Q2 2023	1,498	$0	$20.56	$13.29 - $26.35
Q1 2023	2	$0	$16.66	$13.41 - $18.89