Insider trading

Period: 120 months Stock: TWST Role: CEO × + Add filter Clear all
Views & alerts

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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

109 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

109 decisions over 120 months Remove this filter
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

109 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

109 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
109 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
109 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

109 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
5 Oct 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan 8×
$919.37K 4,548 at 202.15
0.8%
Planned (10b5-1)
2 Oct 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan
$8.64M 45,736 at 188.88
7.5%
Planned (10b5-1)
1 Oct 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan
$131.00K 655 at 200.00
0.1%
Planned (10b5-1)
24 Sep 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan 10×
$922.91K 5,203 at 177.38
0.8%
Planned (10b5-1)
21 Sep 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$279.18K 1,687 at 165.49
0.3%
Not planned
17 Sep 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan 13×
$56.33M 356,546 at 157.99
36.5%
Planned (10b5-1)
8 Sep 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$282.28K 2,302 at 122.62
0.3%
Not planned
25 Aug 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan 5×
$6.32M 41,570 at 151.98
5.1%
Planned (10b5-1)
21 Aug 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$923.26K 6,639 at 139.07
0.8%
Not planned
12 Aug 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan
$2.50M 19,952 at 125.08
2.4%
Planned (10b5-1)
10 Aug 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan
$14.18M 113,318 at 125.16
12.2%
Planned (10b5-1)
3 Aug 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$435.22K 5,101 at 85.32
0.6%
Not planned
25 Jun 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan
$1.79M 18,880 at 95.00
2.2%
Planned (10b5-1)
22 Jun 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$147.40K 1,688 at 87.32
0.2%
Not planned
8 Jun 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$158.20K 2,265 at 69.84
0.3%
Not planned
28 May 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan 4×
$1.12M 16,470 at 67.91
1.9%
Planned (10b5-1)
27 May 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan 2×
$1.63M 25,017 at 65.29
2.9%
Planned (10b5-1)
26 May 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan
$1.58M 24,282 at 65.08
2.8%
Planned (10b5-1)
21 May 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$366.83K 6,888 at 53.26
0.8%
Not planned
4 May 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$293.00K 5,127 at 57.15
0.6%
Not planned
22 Apr 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan 2×
$526.29K 8,061 at 65.29
0.9%
Planned (10b5-1)
21 Apr 2026
Leproust Emily M. Chief Executive Officer
Sold on a plan
$104.67K 1,610 at 65.01
0.2%
Planned (10b5-1)
20 Mar 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$76.28K 1,742 at 43.79
0.2%
Not planned
6 Mar 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$112.49K 2,423 at 46.43
0.3%
Not planned
23 Feb 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$336.54K 7,205 at 46.71
0.8%
Not planned
3 Feb 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$232.93K 5,001 at 46.58
0.6%
Not planned
22 Dec 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$55.46K 1,605 at 34.56
0.2%
Not planned
8 Dec 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$74.14K 2,255 at 32.88
0.3%
Not planned
21 Nov 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$70.58K 2,663 at 26.50
0.3%
Not planned
3 Nov 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$156.77K 4,887 at 32.08
0.7%
Not planned
30 Oct 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$986.69K 31,379 at 31.44
4.1%
Not planned
6 Oct 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$1.01M 31,348 at 32.19
5.0%
Not planned
2 Oct 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$13.88K 476 at 29.16
0.1%
Not planned
22 Sep 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$46.96K 1,704 at 27.56
0.3%
Not planned
8 Sep 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$58.35K 2,265 at 25.76
0.4%
Not planned
21 Aug 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$70.52K 2,716 at 25.96
0.4%
Not planned
4 Aug 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$158.41K 5,585 at 28.36
0.9%
Not planned
2 Jul 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$17.23K 476 at 36.19
0.1%
Not planned
20 Jun 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$60.00K 1,678 at 35.76
0.3%
Not planned
6 Jun 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$68.90K 2,170 at 31.75
0.3%
Not planned
21 May 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$83.35K 2,802 at 29.75
0.4%
Not planned
5 May 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$189.84K 5,042 at 37.65
0.8%
Not planned
2 Apr 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$19.06K 492 at 38.73
0.1%
Not planned
20 Mar 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$71.93K 1,726 at 41.68
0.3%
Not planned
6 Mar 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$98.27K 2,402 at 40.91
0.4%
Not planned
21 Feb 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$123.25K 2,790 at 44.18
0.4%
Not planned
3 Feb 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$256.63K 5,200 at 49.35
0.8%
Not planned
3 Jan 2025
Leproust Emily M. Chief Executive Officer
Sold at will
$24.89K 546 at 45.59
0.1%
Not planned
20 Dec 2024
Leproust Emily M. Chief Executive Officer
Sold at will
$74.27K 1,654 at 44.90
0.2%
Not planned
6 Dec 2024
Leproust Emily M. Chief Executive Officer
Sold at will
$116.79K 2,216 at 52.70
0.3%
Not planned
Showing 1–50 of 109. Page 1 of 3 Older →