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 JS
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Detailed Insider History for:
TWIST BIOSCIENCE CORP: TWST
Price: 10/24/25 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
$34.11 $55.33 $24.07 $2,059 60 1,811 0.0% 20.3% 118.41% 1.77%
Exch Sector Industry Sub-Industry
NasdaqGS Manufacturing Chemicals And Allied Products Biological Products, (No Disgnostic Substances)
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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
    
 
CHO DENNIS
O
S
$39,778
806
---
2/3/25
---
$49.35
112,221
-0.7
D
R
2/5/25 - 4:15:07 pm
2
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$121,501
2,422
---
1/23/25
---
$50.17
272,044
-0.9
D
R
1/27/25 - 4:05:10 pm
3
    
 
LAPONIS ADAM
CFO
S
$254,646
5,886
---
1/10/25
---
$43.26
110,096
-5.1
D
R
1/14/25 - 4:05:06 pm
4
1y
9
89%
-56%
2
CHESS ROBERT
DIR
AS
$250,000
5,000
---
1/7/25
---
$50.00
16,641
-23.1
D
10b
1/10/25 - 4:05:12 pm
5
    
 
CHO DENNIS
O
S
$6,565
144
---
1/3/25
---
$45.59
113,027
-0.1
D
R
1/7/25 - 5:47:30 pm
6
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$10,440
229
---
1/3/25
---
$45.59
274,466
-0.1
D
R
1/7/25 - 5:47:08 pm
7
    
 
GREEN PAULA
VP,HR
S
$7,295
160
---
1/3/25
---
$45.59
133,273
-0.1
D
R
1/7/25 - 5:46:56 pm
8
    
 
LEPROUST EMILY M
CEO,DIR
S
$24,893
546
---
1/3/25
---
$45.59
672,518
-0.1
D
R
1/7/25 - 5:45:39 pm
9
    
 
CHO DENNIS
O
S
$14,189
316
---
12/20/24
---
$44.90
113,171
-0.3
D
R
12/26/24 - 4:05:09 pm
10
    
 
GREEN PAULA
VP,HR
S
$12,663
282
---
12/20/24
---
$44.90
133,433
-0.2
D
R
12/26/24 - 4:05:08 pm
11
    
 
LEPROUST EMILY M
CEO,DIR
S
$74,270
1,654
---
12/20/24
---
$44.90
673,064
-0.2
D
R
12/26/24 - 4:05:05 pm
12
    
 
CHO DENNIS
O
S
$6,225
133
---
12/16/24
---
$46.81
113,487
-0.1
D
R
12/18/24 - 4:05:08 pm
13
    
 
CHO DENNIS
O
S
$19,342
367
---
12/6/24
---
$52.70
113,620
-0.3
D
R
12/10/24 - 4:05:17 pm
14
    
 
GREEN PAULA
VP,HR
S
$45,325
860
---
12/6/24
---
$52.70
133,715
-0.6
D
R
12/10/24 - 4:05:11 pm
15
    
 
LEPROUST EMILY M
CEO,DIR
S
$116,792
2,216
---
12/6/24
---
$52.70
674,718
-0.3
D
R
12/10/24 - 4:05:10 pm
16
    
 
WERNER ROBERT F
CAO
S
$11,911
226
---
12/6/24
---
$52.70
53,043
-0.4
D
R
12/10/24 - 4:05:08 pm
17
1y
9
89%
-56%
2
CHESS ROBERT
DIR
OS
$181,696
3,504
---
12/5/24
$51.70
$52.45
21,641
-13.9
D
10b
12/30/24 - 4:55:32 pm
18
    
 
CHESS ROBERT
DIR
OE
$30,905
3,504
---
12/5/24
---
$8.82
25,145
16.2
D
10b
12/30/24 - 4:55:32 pm
19
    
 
LEPROUST EMILY M
CEO,DIR
JB
---
95,350
---
12/4/24
---
---
676,934
16.4
D
R
12/6/24 - 4:05:21 pm
20
    
 
FINN PATRICK JOHN
PR,COO
JB
---
53,634
---
12/4/24
---
---
274,695
24.3
D
R
12/6/24 - 4:05:20 pm
21
    
 
LAPONIS ADAM
CFO
JB
---
26,745
---
12/4/24
---
---
115,982
30.0
D
R
12/6/24 - 4:05:18 pm
22
    
 
GREEN PAULA
VP,HR
JB
---
20,428
---
12/4/24
---
---
134,575
17.9
D
R
12/6/24 - 4:05:17 pm
23
    
 
CHO DENNIS
O
JB
---
22,824
---
12/4/24
---
---
113,987
25.0
D
R
12/6/24 - 4:05:13 pm
24
    
 
WERNER ROBERT F
CAO
JB
---
8,438
---
12/4/24
---
---
53,269
18.8
D
R
12/6/24 - 4:05:12 pm
25
    
 
WERNER ROBERT F
CAO
S
$34,871
789
---
11/25/24
---
$44.20
44,831
-1.7
D
R
11/27/24 - 4:05:08 pm
26
1y
9
89%
-56%
2
CHESS ROBERT
DIR
OS
$170,139
3,600
---
11/11/24
$46.99
$47.76
21,641
-14.3
D
10b
11/13/24 - 8:30:51 pm
27
    
 
CHESS ROBERT
DIR
OE
$31,752
3,600
---
11/11/24
---
$8.82
25,241
16.6
D
10b
11/13/24 - 8:30:51 pm
28
    
 
CHO DENNIS
O
S
$72,333
1,507
---
11/11/24
---
$48.00
91,163
-1.6
D
R
11/13/24 - 5:24:29 pm
29
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$496,299
10,340
---
11/11/24
---
$48.00
221,061
-4.5
D
R
11/13/24 - 5:24:08 pm
30
    
 
GREEN PAULA
VP,HR
S
$64,653
1,347
---
11/11/24
---
$48.00
114,147
-1.2
D
R
11/13/24 - 5:23:52 pm
31
    
 
LEPROUST EMILY M
CEO,DIR
S
$382,448
7,968
---
11/11/24
---
$48.00
581,584
-1.4
D
R
11/13/24 - 5:23:31 pm
32
    
 
CHO DENNIS
O
S
$80,780
1,811
---
11/6/24
---
$44.60
92,670
-1.9
D
A
11/15/24 - 4:05:16 pm
33
    
 
LAPONIS ADAM
CFO
S
$185,557
4,160
---
11/6/24
---
$44.60
89,237
-4.5
D
A
11/15/24 - 4:05:15 pm
34
    
 
LEPROUST EMILY M
CEO,DIR
S
$639,368
14,334
---
11/6/24
---
$44.60
589,552
-2.4
D
A
11/15/24 - 4:05:13 pm
35
    
 
WERNER ROBERT F
CAO
S
$64,588
1,448
---
11/6/24
---
$44.60
45,620
-3.1
D
A
11/15/24 - 4:05:12 pm
36
    
 
GREEN PAULA
VP,HR
S
$246,175
5,519
---
11/6/24
---
$44.60
115,494
-4.6
D
A
11/15/24 - 4:05:10 pm
37
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$278,291
6,239
---
11/6/24
---
$44.60
231,401
-2.6
D
A
11/15/24 - 4:05:10 pm
38
    
 
LEPROUST EMILY M
CEO,DIR
S
$639,368
14,334
---
11/6/24
---
$44.60
589,552
-2.4
D
---
11/8/24 - 4:05:22 pm
39
    
 
WERNER ROBERT F
CAO
S
$64,588
1,448
---
11/6/24
---
$44.60
45,620
-3.1
D
---
11/8/24 - 4:05:20 pm
40
    
 
GREEN PAULA
VP,HR
S
$246,175
5,519
---
11/6/24
---
$44.60
115,494
-4.6
D
---
11/8/24 - 4:05:20 pm
41
    
 
LAPONIS ADAM
CFO
S
$185,557
4,160
---
11/6/24
---
$44.60
89,237
-4.5
D
---
11/8/24 - 4:05:19 pm
42
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$278,291
6,239
---
11/6/24
---
$44.60
231,401
-2.6
D
---
11/8/24 - 4:05:17 pm
43
    
 
CHO DENNIS
O
S
$80,780
1,811
---
11/6/24
---
$44.60
92,670
-1.9
D
---
11/8/24 - 4:05:13 pm
44
    
 
GREEN PAULA
VP,HR
S
$43,933
1,057
---
11/4/24
---
$41.56
121,013
-0.9
D
R
11/6/24 - 5:06:44 pm
45
    
 
GREEN PAULA
VP,HR
JB
---
37,485
---
11/4/24
---
---
122,070
44.3
D
R
11/6/24 - 5:06:44 pm
46
    
 
CHO DENNIS
O
S
$27,391
659
---
11/4/24
---
$41.56
94,481
-0.7
D
R
11/6/24 - 5:06:32 pm
47
    
 
CHO DENNIS
O
JB
---
19,851
---
11/4/24
---
---
95,140
26.4
D
R
11/6/24 - 5:06:32 pm
48
    
 
LEPROUST EMILY M
CEO,DIR
S
$201,211
4,841
---
11/4/24
---
$41.56
603,886
-0.8
D
R
11/6/24 - 5:06:22 pm
49
    
 
LEPROUST EMILY M
CEO,DIR
JB
---
126,809
---
11/4/24
---
---
608,727
26.3
D
R
11/6/24 - 5:06:22 pm
50
1y
39
64%
43%
1
FINN PATRICK JOHN
PR,COO
S
$111,433
2,681
---
11/4/24
---
$41.56
237,640
-1.1
D
R
11/6/24 - 5:05:55 pm
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