Insider trading

Period: 12 months Stock: TWST Plan: Discretionary × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

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

102 decisions over 12 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.

102 decisions over 12 months
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.

102 decisions over 12 months
The trade

Minimum amount

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

102 decisions over 12 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.
102 decisions over 12 months Remove this filter
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
102 decisions over 12 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.

102 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
9 Apr 2026
Laponis Adam Chief Financial Officer
Sold at will
$129.56K 2,597 at 49.89
2.0%
Not planned
20 Mar 2026
Leproust Emily M. Chief Executive Officer
Sold at will
$76.28K 1,742 at 43.79
0.2%
Not planned
20 Mar 2026
Cho Dennis See Remarks
Sold at will
$15.50K 354 at 43.79
0.3%
Not planned
20 Mar 2026
Green Paula SVP of Human Resources
Sold at will
$13.00K 297 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
6 Mar 2026
Green Paula SVP of Human Resources
Sold at will
$43.41K 935 at 46.43
0.7%
Not planned
6 Mar 2026
Cho Dennis See Remarks
Sold at will
$19.73K 425 at 46.43
0.3%
Not planned
6 Mar 2026
WERNER ROBERT F. Chief Accounting Officer
Sold at will
$11.42K 246 at 46.43
0.4%
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
23 Feb 2026
Finn Patrick John President and COO
Sold at will
$200.57K 4,294 at 46.71
1.5%
Not planned
23 Feb 2026
Laponis Adam Chief Financial Officer
Sold at will
$97.39K 2,085 at 46.71
1.6%
Not planned
23 Feb 2026
WERNER ROBERT F. Chief Accounting Officer
Sold at will
$79.08K 1,693 at 46.71
3.0%
Not planned
23 Feb 2026
Green Paula SVP of Human Resources
Sold at will
$68.43K 1,465 at 46.71
1.2%
Not planned
23 Feb 2026
Cho Dennis See Remarks
Sold at will
$39.42K 844 at 46.71
0.6%
Not planned
17 Feb 2026
Green Paula SVP of Human Resources
Sold at will
$2.06M 39,404 at 52.40
23.8%
Not planned
13 Feb 2026
CHESS ROBERT Director
Sold at will
$105.40K 2,184 at 48.26
9.4%
Not planned
6 Feb 2026
JOHANNESSEN JAN Director
Sold at will
$105.39K 2,200 at 47.91
11.0%
Not planned
4 Feb 2026
WERNER ROBERT F. Chief Accounting Officer
Sold at will
$319.54K 7,000 at 45.65
10.6%
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
3 Feb 2026
Finn Patrick John President and COO
Sold at will
$125.99K 2,705 at 46.58
0.9%
Not planned
3 Feb 2026
Green Paula SVP of Human Resources
Sold at will
$55.61K 1,194 at 46.58
0.7%
Not planned
3 Feb 2026
Cho Dennis See Remarks
Sold at will
$51.19K 1,099 at 46.58
0.8%
Not planned
3 Feb 2026
WERNER ROBERT F. Chief Accounting Officer
Sold at will
$8.15K 175 at 46.58
0.3%
Not planned
23 Jan 2026
Finn Patrick John President and COO
Sold at will
$107.33K 2,390 at 44.91
0.8%
Not planned
9 Jan 2026
Laponis Adam Chief Financial Officer
Sold at will
$96.54K 2,738 at 35.26
1.9%
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
22 Dec 2025
Cho Dennis See Remarks
Sold at will
$11.20K 324 at 34.56
0.2%
Not planned
22 Dec 2025
Green Paula SVP of Human Resources
Sold at will
$9.43K 273 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
8 Dec 2025
Green Paula SVP of Human Resources
Sold at will
$28.83K 877 at 32.88
0.5%
Not planned
8 Dec 2025
Cho Dennis See Remarks
Sold at will
$13.09K 398 at 32.88
0.3%
Not planned
8 Dec 2025
WERNER ROBERT F. Chief Accounting Officer
Sold at will
$7.56K 230 at 32.88
0.3%
Not planned
24 Nov 2025
WERNER ROBERT F. Chief Accounting Officer
Sold at will
$23.60K 822 at 28.71
1.2%
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
21 Nov 2025
Finn Patrick John President and COO
Sold at will
$47.07K 1,776 at 26.50
0.5%
Not planned
21 Nov 2025
Laponis Adam Chief Financial Officer
Sold at will
$23.51K 887 at 26.50
0.6%
Not planned
21 Nov 2025
Cho Dennis See Remarks
Sold at will
$20.06K 757 at 26.50
0.5%
Not planned
21 Nov 2025
Green Paula SVP of Human Resources
Sold at will
$15.85K 598 at 26.50
0.4%
Not planned
21 Nov 2025
WERNER ROBERT F. Chief Accounting Officer
Sold at will
$6.07K 229 at 26.50
0.3%
Not planned
18 Nov 2025
JOHANNESSEN JAN Director
Sold at will
$174.48K 7,044 at 24.77
32.2%
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
3 Nov 2025
Finn Patrick John President and COO
Sold at will
$88.38K 2,755 at 32.08
1.0%
Not planned
3 Nov 2025
Green Paula SVP of Human Resources
Sold at will
$34.77K 1,084 at 32.08
0.8%
Not planned
3 Nov 2025
Cho Dennis See Remarks
Sold at will
$32.69K 1,019 at 32.08
0.8%
Not planned
3 Nov 2025
WERNER ROBERT F. Chief Accounting Officer
Sold at will
$5.13K 160 at 32.08
0.3%
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
30 Oct 2025
Finn Patrick John President and COO
Sold at will
$553.61K 17,606 at 31.44
6.1%
Not planned
30 Oct 2025
Green Paula SVP of Human Resources
Sold at will
$217.59K 6,920 at 31.44
4.6%
Not planned
30 Oct 2025
Cho Dennis See Remarks
Sold at will
$204.86K 6,515 at 31.44
5.1%
Not planned
30 Oct 2025
Laponis Adam Chief Financial Officer
Sold at will
$173.48K 5,517 at 31.44
4.7%
Not planned
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