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 B  AB  JB*  OB  OE*  OE
 S  AS  JS*  OS  OS*  3
 JB
 JS
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Detailed Insider History for:
IDEAYA BIOSCIENCES INC: IDYA
Price: 3/13/26 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$33.09 $39.28 $13.45 $2,906 88 888 0.0% 13.1% 116.09% 2.42%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Chemicals And Allied Products Pharmaceutical Preparations
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#
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
1w
1
100%
6%
4
STEIN JEFFREY
DIR
B
$1,647,890
50,000
---
3/2/26
---
$32.96
54,281
1,168.0
D
---
3/2/26 - 7:18:09 pm
2
    
 
SNYDER DOUGLAS B
VP,GC
JB
$17,600
1,041
---
11/28/25
---
$16.91
2,080
100.2
D
---
2/2/26 - 7:57:16 pm
3
    
 
RUIZ BRISENO ANDRES
O
JB
$21,184
1,253
---
11/28/25
---
$16.91
26,466
5.0
D
---
2/2/26 - 7:55:02 pm
4
    
 
BLEHARSKI JOSHUA
CFO
3
---
---
---
6/27/25
---
---
---
---
---
---
6/27/25 - 4:20:15 pm
5
    
 
SNYDER DOUGLAS B
VP,GC
JB
$17,566
1,039
---
5/30/25
---
$16.91
1,039
New
D
---
2/2/26 - 7:57:16 pm
6
1y
4
100%
105%
1
HATA YUJIRO S
PR,CEO,DIR
OB
$250,012
12,808
---
2/18/25
---
$19.52
690,695
1.9
D
---
2/19/25 - 6:00:15 am
7
    
 
DORMAN STUART
O
3
---
---
---
12/11/24
---
---
---
---
---
---
12/20/24 - 4:53:22 pm
8
    
 
RUIZ BRISENO ANDRES
O
JB
$15,861
682
---
11/29/24
---
$23.26
25,213
2.8
D
---
2/2/26 - 7:55:02 pm
9
    
 
SNYDER DOUGLAS B
VP,GC
3
---
---
---
9/18/24
---
---
---
---
---
---
9/27/24 - 4:21:42 pm
10
    
 
THRONE JASON
LO
OB
$415,587
53,484
---
6/27/24
---
$7.01
63,484
534.8
D
---
6/27/24 - 6:47:10 pm
11
    
 
WHITE MICHAEL ANTHONY
O
OS
$1,032,884
28,500
---
5/29/24
$36.23
$36.78
---
All
D
10b
5/31/24 - 4:26:47 pm
12
    
 
WHITE MICHAEL ANTHONY
O
OE
$366,510
28,500
---
5/29/24
---
$12.86
28,500
New
D
10b
5/31/24 - 4:26:47 pm
13
1y
5
100%
-45%
1
HATA YUJIRO S
PR,CEO,DIR
OS
$7,397,291
175,000
5/14/24
5/16/24
$41.60
$42.37
677,887
-20.5
D
10b
5/16/24 - 5:51:24 pm
14
    
 
HATA YUJIRO S
PR,CEO,DIR
OE
$754,250
175,000
5/14/24
5/16/24
---
$4.31
761,743
29.8
D
10b
5/16/24 - 5:51:24 pm
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