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Detailed Insider History for:
TWIST BIOSCIENCE CORP: TWST
Price: 10/31/25 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
$32.89 $55.33 $24.07 $1,985 60 1,812 0.0% 20.3% 119.07% 2.28%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Chemicals And Allied Products Biological Products, (No Disgnostic Substances)
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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
    
 
CHO DENNIS
O
S
$32,689
1,019
---
11/3/25
---
$32.08
120,694
-0.8
D
R
11/5/25 - 4:05:18 pm
2
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$88,379
2,755
---
11/3/25
---
$32.08
265,919
-1.0
D
R
11/5/25 - 4:05:17 pm
3
    
 
GREEN PAULA
VP,HR
S
$34,774
1,084
---
11/3/25
---
$32.08
142,187
-0.8
D
R
11/5/25 - 4:05:12 pm
4
    
 
LEPROUST EMILY M
CEO,DIR
S
$156,772
4,887
---
11/3/25
---
$32.08
733,922
-0.7
D
R
11/5/25 - 4:05:11 pm
5
    
 
WERNER ROBERT F
CAO
S
$5,133
160
---
11/3/25
---
$32.08
50,870
-0.3
D
R
11/5/25 - 4:05:06 pm
6
    
 
CHO DENNIS
O
S
$204,860
6,515
---
10/30/25
---
$31.44
121,713
-5.1
D
---
11/3/25 - 4:05:16 pm
7
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$553,608
17,606
---
10/30/25
---
$31.44
268,674
-6.1
D
---
11/3/25 - 4:05:15 pm
8
    
 
GREEN PAULA
VP,HR
S
$217,595
6,920
---
10/30/25
---
$31.44
143,271
-4.6
D
---
11/3/25 - 4:05:13 pm
9
    
 
LEPROUST EMILY M
CEO,DIR
S
$986,691
31,379
---
10/30/25
---
$31.44
738,809
-4.1
D
---
11/3/25 - 4:05:11 pm
10
    
 
LAPONIS ADAM
CFO
S
$173,478
5,517
---
10/30/25
---
$31.44
111,008
-4.7
D
---
11/3/25 - 4:05:08 pm
11
    
 
WERNER ROBERT F
CAO
S
$31,947
1,016
---
10/30/25
---
$31.44
51,030
-2.0
D
---
11/3/25 - 4:05:06 pm
12
    
 
FINN PATRICK JOHN
PR,COO
JB
---
79,785
---
10/28/25
---
---
286,280
38.6
D
---
10/30/25 - 4:05:16 pm
13
    
 
CHO DENNIS
O
JB
---
29,518
---
10/28/25
---
---
128,228
29.9
D
---
10/30/25 - 4:05:14 pm
14
    
 
GREEN PAULA
VP,HR
JB
---
35,513
---
10/28/25
---
---
150,191
31.0
D
---
10/30/25 - 4:05:12 pm
15
    
 
LEPROUST EMILY M
CEO,DIR
JB
---
168,976
---
10/28/25
---
---
770,188
28.1
D
---
10/30/25 - 4:05:11 pm
16
    
 
WERNER ROBERT F
CAO
JB
---
5,633
---
10/28/25
---
---
52,046
12.1
D
---
10/30/25 - 4:05:10 pm
17
    
 
LAPONIS ADAM
CFO
JB
---
25,000
---
10/28/25
---
---
116,525
27.3
D
---
10/30/25 - 4:05:09 pm
18
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$69,160
2,240
---
10/23/25
---
$30.88
206,495
-1.1
D
R
10/27/25 - 4:05:09 pm
19
    
 
LAPONIS ADAM
CFO
AS
$176,315
5,517
10/8/25
10/9/25
$31.15
$32.92
91,525
-5.7
D
R,10b
10/10/25 - 4:05:09 pm
20
    
 
LAPONIS ADAM
CFO
S
$189,099
5,875
---
10/6/25
---
$32.19
97,042
-5.7
D
---
10/8/25 - 4:05:18 pm
21
    
 
LEPROUST EMILY M
CEO,DIR
S
$1,008,998
31,348
---
10/6/25
---
$32.19
601,212
-5.0
D
---
10/8/25 - 4:05:16 pm
22
    
 
WERNER ROBERT F
CAO
S
$65,694
2,041
---
10/6/25
---
$32.19
46,413
-4.2
D
---
10/8/25 - 4:05:15 pm
23
    
 
GREEN PAULA
VP,HR
S
$312,986
9,724
---
10/6/25
---
$32.19
114,678
-7.8
D
---
10/8/25 - 4:05:13 pm
24
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$764,345
23,747
---
10/6/25
---
$32.19
208,735
-10.2
D
---
10/8/25 - 4:05:11 pm
25
    
 
CHO DENNIS
O
S
$124,757
3,876
---
10/6/25
---
$32.19
98,710
-3.8
D
---
10/8/25 - 4:05:10 pm
26
    
 
CHO DENNIS
O
S
$3,616
124
---
10/2/25
---
$29.16
102,586
-0.1
D
R
10/6/25 - 4:05:12 pm
27
    
 
GREEN PAULA
VP,HR
S
$4,083
140
---
10/2/25
---
$29.16
124,402
-0.1
D
R
10/6/25 - 4:05:11 pm
28
    
 
LEPROUST EMILY M
CEO,DIR
S
$13,881
476
---
10/2/25
---
$29.16
632,560
-0.1
D
R
10/6/25 - 4:05:09 pm
29
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$6,007
206
---
10/2/25
---
$29.16
232,482
-0.1
D
R
10/6/25 - 4:05:07 pm
30
    
 
CHO DENNIS
O
S
$6,421
233
---
9/22/25
---
$27.56
102,710
-0.2
D
R
9/24/25 - 4:07:41 pm
31
    
 
GREEN PAULA
VP,HR
S
$8,130
295
---
9/22/25
---
$27.56
124,542
-0.2
D
R
9/24/25 - 4:07:30 pm
32
    
 
LEPROUST EMILY M
CEO,DIR
S
$46,962
1,704
---
9/22/25
---
$27.56
633,036
-0.3
D
R
9/24/25 - 4:07:19 pm
33
    
 
CHO DENNIS
O
S
$2,381
94
---
9/15/25
---
$25.33
102,943
-0.1
D
R
9/17/25 - 9:38:37 am
34
    
 
CHO DENNIS
O
S
$6,929
269
---
9/8/25
---
$25.76
103,037
-0.3
D
R
9/10/25 - 9:13:41 am
35
    
 
GREEN PAULA
VP,HR
S
$22,978
892
---
9/8/25
---
$25.76
124,837
-0.7
D
R
9/10/25 - 9:13:05 am
36
    
 
LEPROUST EMILY M
CEO,DIR
S
$58,346
2,265
---
9/8/25
---
$25.76
634,740
-0.4
D
R
9/10/25 - 9:12:15 am
37
    
 
WERNER ROBERT F
CAO
S
$6,054
235
---
9/8/25
---
$25.76
48,454
-0.5
D
R
9/10/25 - 9:11:23 am
38
    
 
WERNER ROBERT F
CAO
S
$23,620
853
---
8/25/25
---
$27.69
48,689
-1.7
D
R
8/27/25 - 4:05:11 pm
39
    
 
LEPROUST EMILY M
CEO,DIR
S
$70,518
2,716
---
8/21/25
---
$25.96
637,005
-0.4
D
R
8/25/25 - 4:05:32 pm
40
    
 
WERNER ROBERT F
CAO
S
$6,179
238
---
8/21/25
---
$25.96
49,542
-0.5
D
R
8/25/25 - 4:05:29 pm
41
    
 
GREEN PAULA
VP,HR
S
$16,072
619
---
8/21/25
---
$25.96
125,729
-0.5
D
R
8/25/25 - 4:05:26 pm
42
    
 
LAPONIS ADAM
CFO
S
$23,835
918
---
8/21/25
---
$25.96
102,917
-0.9
D
R
8/25/25 - 4:05:24 pm
43
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$47,774
1,840
---
8/21/25
---
$25.96
233,529
-0.8
D
R
8/25/25 - 4:05:22 pm
44
    
 
CHO DENNIS
O
S
$13,527
521
---
8/21/25
---
$25.96
103,306
-0.5
D
R
8/25/25 - 4:05:19 pm
45
    
 
BLAKE KATRYN
DIR
JB
---
14,353
---
8/5/25
---
---
14,353
New
D
R
8/7/25 - 4:05:13 pm
46
    
 
BLAKE KATRYN
DIR
3
---
---
---
8/5/25
---
---
---
---
D
---
8/7/25 - 4:05:11 pm
47
    
 
WERNER ROBERT F
CAO
S
$5,276
186
---
8/4/25
---
$28.36
49,780
-0.4
D
R
8/6/25 - 4:05:16 pm
48
    
 
LEPROUST EMILY M
CEO,DIR
S
$158,413
5,585
---
8/4/25
---
$28.36
639,721
-0.9
D
R
8/6/25 - 4:05:15 pm
49
    
 
GREEN PAULA
VP,HR
S
$35,597
1,255
---
8/4/25
---
$28.36
126,206
-1.0
D
R
8/6/25 - 4:05:13 pm
50
    
 
CHO DENNIS
O
S
$22,266
785
---
8/4/25
---
$28.36
103,827
-0.8
D
R
8/6/25 - 4:05:12 pm
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