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Twist Bioscience Corp

TWST Net selling
CIK 0001581280 #1014 in the set updated 17 Sep 2026
Bought (120 mo)
$2.48M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$285.08M
$15.89M on a plan · $125.33M straight out of an exercise
Sold at will
$143.86M
647 of 985 sales
Net
−$282.60M
−$141.38M against sales at will

By person

25 insiders · 1,016 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Leproust Emily M.
Chief Executive Officer
—
$107.10M (228)
−$107.10M
768,427
1.23%
$94.23M
+6.7%
Banyai William
See Remark
—
$40.78M (173)
−$40.78M
345,188
0.5505%
$42.33M
−51.3%
Finn Patrick John
President and COO
—
$34.14M (102) scheduled
−$34.14M
210,802
0.3362%
$25.85M
+4,391%
Weiss Patrick
Chief Operating Officer
—
$19.28M (117) scheduled
−$19.28M
47,401
0.0756%
$5.81M
−18.7%
THORBURN JAMES M
Chief Financial Officer
—
$18.06M (62) scheduled
−$18.06M
86,334
0.1377%
$10.59M
+1,849%
Daniels Mark
See Remarks
—
$14.35M (50) scheduled
−$14.35M
66,736
0.1064%
$8.18M
+175.6%
Green Paula
SVP of Human Resources
—
$12.20M (67) scheduled
−$12.20M
117,014
0.1866%
$14.35M
+1,628%
CRANDELL KEITH
Director
$1.05M (2)
$12.57M (5)
−$11.52M
103,618
0.1652%
$12.71M
—
Cho Dennis
See Remarks
$132.00K (1)
$7.95M (62) scheduled
−$7.82M
73,651
0.1175%
$9.03M
+273.5%
CHESS ROBERT
Director
—
$6.07M (23) scheduled
−$6.07M
21,084
0.0336%
$2.59M
−22.8%
Laponis Adam
Chief Financial Officer
—
$3.46M (26)
−$3.46M
108,633
0.1732%
$13.32M
+5,612%
JOHANNESSEN JAN
Director
—
$2.81M (9) scheduled
−$2.81M
17,754
0.0283%
$2.18M
—
WERNER ROBERT F.
Chief Accounting Officer
—
$1.78M (43)
−$1.78M
44,399
0.0708%
$5.44M
—
Peck Bill
Chief Technology Officer
—
$1.63M (8)
−$1.63M
646,112
1.03%
$79.23M
−8.8%
RAGUSA ROBERT P
Director
—
$1.41M (3) scheduled
−$1.41M
1,731,084
2.76%
$212.27M
—
ARCH Venture Partners VIII, LLC entity
10% owner
$1.05M (2)
—
+$1.05M
954,146
1.52%
$117.00M
—
BARTHELEMY NICOLAS
Director
$250.10K (1)
$888.03K (1) scheduled
−$637.94K
23,021
0.0367%
$2.82M
—
Starovasnik Melissa A.
Director
—
$328.26K (5) scheduled
−$328.26K
22,222
0.0354%
$2.72M
—
BLAKE KATRYN
Director
—
$275.25K (1)
−$275.25K
17,208
0.0274%
$2.11M
—
Ever Alpha Fund L.P. entity
10% owner
—
—
—
3,294,961
5.25%
$404.04M
—
CRAVES FRED B
Director
—
—
—
66,771
0.1065%
$8.19M
—
Chan Nelson
Director
—
—
—
33,251
0.0530%
$4.08M
—
Mai Xiaoying
Director
—
—
—
31,057
0.0495%
$3.81M
—
Kunz Martin
SVP, Operations
—
—
—
20,346
0.0324%
$2.49M
—
Yankton Kevin Bruce
Chief Accounting Officer
—
—
—
9,115
0.0145%
$1.12M
+971.1%

Individual transactions

23
Insider
Date
Role
Action
Shares
Price
Amount
Leproust Emily M.
25 Aug 2026
Chief Executive Officer
Sold on a plan
1,093
$154.45
$168.81K
Leproust Emily M.
25 Aug 2026
Chief Executive Officer
Sold on a plan
9,181
$153.93
$1.41M
Leproust Emily M.
25 Aug 2026
Chief Executive Officer
Sold on a plan
6,412
$152.75
$979.43K
Leproust Emily M.
25 Aug 2026
Chief Executive Officer
Sold on a plan
12,236
$151.36
$1.85M
Leproust Emily M.
25 Aug 2026
Chief Executive Officer
Sold on a plan
12,648
$150.56
$1.90M
Cho Dennis
19 Aug 2026
See Remarks
Sold on a plan
14,205
$129.75
$1.84M
Cho Dennis
5 Aug 2026
See Remarks
Sold on a plan
14,205
$109.75
$1.56M
Leproust Emily M.
25 Jun 2026
Chief Executive Officer
Sold on a plan
18,880
$95.00
$1.79M
Cho Dennis
24 Jun 2026
See Remarks
Sold on a plan
14,205
$89.75
$1.27M
Laponis Adam
29 May 2026
Chief Financial Officer
Sold on a plan
4,000
$70.00
$280.00K
Cho Dennis
29 May 2026
See Remarks
Sold on a plan
14,205
$69.75
$990.80K
Starovasnik Melissa A.
28 May 2026
Director
Sold on a plan
2,500
$68.00
$170.00K
Starovasnik Melissa A.
26 May 2026
Director
Sold on a plan
500
$61.04
$30.52K
Starovasnik Melissa A.
27 Apr 2026
Director
Sold on a plan
500
$61.83
$30.92K
Laponis Adam
17 Apr 2026
Chief Financial Officer
Sold on a plan
4,000
$60.00
$240.00K
Laponis Adam
14 Apr 2026
Chief Financial Officer
Sold on a plan
3,000
$55.00
$165.00K
Starovasnik Melissa A.
1 Apr 2026
Director
Sold on a plan
1,000
$51.00
$51.00K
Laponis Adam
12 Feb 2026
Chief Financial Officer
Sold on a plan
7,000
$50.00
$350.00K
Cho Dennis
11 Feb 2026
See Remarks
Sold on a plan
5,000
$49.93
$249.65K
Laponis Adam
13 Jan 2026
Chief Financial Officer
Sold on a plan
3,000
$40.00
$120.00K
Laponis Adam
9 Oct 2025
Chief Financial Officer
Sold on a plan
2,517
$32.92
$82.86K
Laponis Adam
8 Oct 2025
Chief Financial Officer
Sold on a plan
3,000
$31.15
$93.45K
CHESS ROBERT
7 Jan 2025
Director
Sold on a plan
5,000
$50.00
$250.00K
Showing 250 of 1,016 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 942
Amendments (4/A) skipped 22
Filings about a different issuer 0
Unreadable filings 0
Joint filings 1
Sales on a Rule 10b5-1 plan 23
Sales straight out of an exercise 315
Sales at will 647
Transactions with no price 0
Shares from compensation/vesting 20,093,978
Sales filed before the plan box existed 380
History held since 1 Nov 2018