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 JS
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Detailed Insider History for:
TWIST BIOSCIENCE CORP: TWST
Price: 2/27/26 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
$46.92 $57.88 $23.30 $2,877 61 1,362 0.0% 27.3% 121.86% 1.61%
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
1y
46
67%
34%
1
FINN PATRICK JOHN
PR,COO
S
$200,572
4,294
---
2/23/26
---
$46.71
284,129
-1.5
D
R
2/25/26 - 4:05:21 pm
2
    
 
WERNER ROBERT F
CAO
S
$79,080
1,693
---
2/23/26
---
$46.71
55,045
-3.0
D
R
2/25/26 - 4:05:19 pm
3
    
 
LAPONIS ADAM
CFO
S
$97,390
2,085
---
2/23/26
---
$46.71
128,291
-1.6
D
R
2/25/26 - 4:05:17 pm
4
    
 
LEPROUST EMILY M
CEO,DIR
S
$336,544
7,205
---
2/23/26
---
$46.71
863,052
-0.8
D
R
2/25/26 - 4:05:16 pm
5
    
 
GREEN PAULA
VP,HR
S
$68,430
1,465
---
2/23/26
---
$46.71
125,336
-1.2
D
R
2/25/26 - 4:05:13 pm
6
    
 
CHO DENNIS
O
S
$39,423
844
---
2/23/26
---
$46.71
138,682
-0.6
D
R
2/25/26 - 4:05:11 pm
7
    
 
GREEN PAULA
VP,HR
S
$2,064,770
39,404
---
2/17/26
---
$52.40
126,041
-23.8
D
---
2/19/26 - 4:05:33 pm
8
1y
46
67%
34%
1
FINN PATRICK JOHN
PR,COO
OS
$3,562,417
68,967
---
2/17/26
$50.32
$53.11
287,788
-19.3
D
10b
2/19/26 - 4:05:19 pm
9
    
 
FINN PATRICK JOHN
PR,COO
OE
$1,285,841
50,505
---
2/17/26
$23.33
$26.66
356,755
16.5
D
10b
2/19/26 - 4:05:19 pm
10
1y
13
85%
-44%
2
CHESS ROBERT
DIR
S
$105,402
2,184
---
2/13/26
---
$48.26
21,084
-9.4
D
R
2/18/26 - 4:05:06 pm
11
1y
46
67%
34%
1
FINN PATRICK JOHN
PR,COO
OS
$263,359
5,250
2/12/26
2/13/26
---
$50.04
306,250
-1.7
D
10b
2/17/26 - 4:25:52 pm
12
    
 
FINN PATRICK JOHN
PR,COO
OE
$93,967
3,712
2/12/26
2/13/26
$23.33
$26.66
310,288
1.2
D
10b
2/17/26 - 4:25:52 pm
13
    
 
LAPONIS ADAM
CFO
AS
$350,000
7,000
---
2/12/26
---
$50.00
130,031
-5.1
D
10b
2/13/26 - 5:10:38 pm
14
    
 
CHO DENNIS
O
AS
$249,650
5,000
---
2/11/26
---
$49.93
138,581
-3.5
D
10b
2/13/26 - 4:05:11 pm
15
    
 
WERNER ROBERT F
CAO
JS
---
2,000
---
2/9/26
---
---
56,738
-3.4
D
---
2/11/26 - 4:05:07 pm
16
    
 
JOHANNESSEN JAN
DIR
S
$105,395
2,200
---
2/6/26
---
$47.91
17,754
-11.0
D
R
2/9/26 - 4:26:50 pm
17
    
 
CRANDELL KEITH
DIR
JB
---
5,095
---
2/5/26
---
---
27,571
22.7
D
---
2/9/26 - 5:34:35 pm
18
    
 
STAROVASNIK MELISSA A
DIR
JB
---
5,095
---
2/5/26
---
---
26,722
23.6
D
---
2/9/26 - 4:29:13 pm
19
    
 
RAGUSA ROBERT P
DIR
JB
---
5,095
---
2/5/26
---
---
28,983
21.3
D
---
2/9/26 - 4:28:59 pm
20
    
 
CHESS ROBERT
DIR
JB
---
5,095
---
2/5/26
---
---
23,268
28.0
D
---
2/9/26 - 4:28:42 pm
21
    
 
CHAN NELSON
DIR
JB
---
5,095
---
2/5/26
---
---
33,251
18.1
D
---
2/9/26 - 4:28:26 pm
22
    
 
BLAKE KATRYN
DIR
JB
---
5,095
---
2/5/26
---
---
19,448
35.5
D
---
2/9/26 - 4:27:30 pm
23
    
 
JOHANNESSEN JAN
DIR
JB
---
5,095
---
2/5/26
---
---
19,954
34.3
D
R
2/9/26 - 4:26:50 pm
24
    
 
WERNER ROBERT F
CAO
S
$327,687
7,175
2/3/26
2/4/26
---
$45.65
58,738
-10.9
D
R
2/5/26 - 4:05:11 pm
25
1y
46
67%
34%
1
FINN PATRICK JOHN
PR,COO
S
$125,988
2,705
---
2/3/26
---
$46.58
307,788
-0.9
D
R
2/5/26 - 4:05:28 pm
26
    
 
CHO DENNIS
O
S
$51,187
1,099
---
2/3/26
---
$46.58
143,581
-0.8
D
R
2/5/26 - 4:05:26 pm
27
    
 
LEPROUST EMILY M
CEO,DIR
S
$232,927
5,001
---
2/3/26
---
$46.58
869,312
-0.6
D
R
2/5/26 - 4:05:14 pm
28
    
 
GREEN PAULA
VP,HR
S
$55,612
1,194
---
2/3/26
---
$46.58
165,445
-0.7
D
R
2/5/26 - 4:05:09 pm
29
1y
46
67%
34%
1
FINN PATRICK JOHN
PR,COO
S
$107,330
2,390
---
1/23/26
---
$44.91
310,493
-0.8
D
R
1/27/26 - 4:05:14 pm
30
    
 
LAPONIS ADAM
CFO
AS
$120,000
3,000
---
1/13/26
---
$40.00
137,031
-2.1
D
10b
1/15/26 - 4:13:44 pm
31
1y
46
67%
34%
1
FINN PATRICK JOHN
PR,COO
OS
$931,160
23,279
---
1/13/26
---
$40.00
312,883
-6.9
D
10b
1/15/26 - 4:13:28 pm
32
    
 
FINN PATRICK JOHN
PR,COO
OE
$28,921
3,279
---
1/13/26
---
$8.82
336,162
1.0
D
10b
1/15/26 - 4:13:28 pm
33
    
 
LAPONIS ADAM
CFO
S
$96,545
2,738
---
1/9/26
---
$35.26
140,031
-1.9
D
R
1/13/26 - 4:05:05 pm
34
    
 
GREEN PAULA
VP,HR
S
$9,434
273
---
12/22/25
---
$34.56
166,639
-0.2
D
R
12/23/25 - 4:05:13 pm
35
    
 
CHO DENNIS
O
S
$11,196
324
---
12/22/25
---
$34.56
144,680
-0.2
D
R
12/23/25 - 4:05:11 pm
36
    
 
LEPROUST EMILY M
CEO,DIR
S
$55,462
1,605
---
12/22/25
---
$34.56
874,313
-0.2
D
R
12/23/25 - 4:05:09 pm
37
    
 
CHO DENNIS
O
S
$13,085
398
---
12/8/25
---
$32.88
145,004
-0.3
D
R
12/10/25 - 4:05:14 pm
38
    
 
LEPROUST EMILY M
CEO,DIR
S
$74,140
2,255
---
12/8/25
---
$32.88
875,918
-0.3
D
R
12/10/25 - 4:05:12 pm
39
    
 
GREEN PAULA
VP,HR
S
$28,834
877
---
12/8/25
---
$32.88
166,912
-0.5
D
R
12/10/25 - 4:05:10 pm
40
    
 
WERNER ROBERT F
CAO
S
$7,562
230
---
12/8/25
---
$32.88
65,913
-0.3
D
R
12/10/25 - 4:05:08 pm
41
    
 
WERNER ROBERT F
CAO
S
$29,669
1,051
11/21/25
11/24/25
$26.50
$28.71
66,143
-1.6
D
R
11/25/25 - 4:05:14 pm
42
    
 
CHO DENNIS
O
S
$20,063
757
---
11/21/25
---
$26.50
145,402
-0.5
D
R
11/25/25 - 4:05:23 pm
43
1y
46
67%
34%
1
FINN PATRICK JOHN
PR,COO
S
$47,070
1,776
---
11/21/25
---
$26.50
332,883
-0.5
D
R
11/25/25 - 4:05:21 pm
44
    
 
GREEN PAULA
VP,HR
S
$15,849
598
---
11/21/25
---
$26.50
167,789
-0.4
D
R
11/25/25 - 4:05:19 pm
45
    
 
LAPONIS ADAM
CFO
S
$23,509
887
---
11/21/25
---
$26.50
142,769
-0.6
D
R
11/25/25 - 4:05:17 pm
46
    
 
LEPROUST EMILY M
CEO,DIR
S
$70,579
2,663
---
11/21/25
---
$26.50
878,173
-0.3
D
R
11/25/25 - 4:05:16 pm
47
    
 
LEPROUST EMILY M
CEO,DIR
JB
---
146,914
---
11/18/25
---
---
880,836
20.0
D
R
11/20/25 - 4:05:22 pm
48
    
 
FINN PATRICK JOHN
PR,COO
JB
---
68,740
---
11/18/25
---
---
334,659
25.8
D
R
11/20/25 - 4:05:20 pm
49
    
 
LAPONIS ADAM
CFO
JB
---
32,648
---
11/18/25
---
---
143,656
29.4
D
R
11/20/25 - 4:05:19 pm
50
    
 
CHO DENNIS
O
JB
---
25,465
---
11/18/25
---
---
146,159
21.1
D
R
11/20/25 - 4:05:17 pm
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