Insider trading

Period: 120 months Stock: SGMT + Add filter Clear all
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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.

23 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.

23 decisions over 120 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.

23 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.

23 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.
23 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
23 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.

23 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
14 Aug 2026
Kemble George Director
Sold on a plan
$3.59M 350,987 at 10.23
85.0%
Sold half or more
11 Aug 2026
Kemble George Director
Sold on a plan
$201.15K 20,206 at 9.95
24.5%
Planned (10b5-1)
20 Jul 2026
Happel David President & CEO
Sold at will
$497.07K 64,051 at 7.76
8.0%
Not planned
20 Jul 2026
Kemble George Director
Sold on a plan
$140.53K 18,844 at 7.46
23.3%
Planned (10b5-1)
20 Jul 2026
Rozek Elizabeth Chief Legal & Admin. Officer
Sold at will
$81.83K 10,545 at 7.76
4.5%
Not planned
10 Feb 2026
Happel David President & CEO
Sold at will
$64.86K 12,101 at 5.36
1.8%
Not planned
10 Feb 2026
Martins Eduardo Bruno Chief Medical Officer
Sold at will
$19.51K 3,640 at 5.36
3.4%
Not planned
10 Feb 2026
Rozek Elizabeth Chief Legal & Admin. Officer
Sold at will
$14.05K 2,622 at 5.36
1.4%
Not planned
10 Feb 2026
Chauche Thierry Chief Financial Officer
Sold at will
$7.03K 1,312 at 5.36
7.7%
Not planned
20 Nov 2025
Kemble George Executive Chairman
Sold on a plan
$289.98K 37,688 at 7.69
31.8%
Planned (10b5-1)
21 Jul 2025
Happel David President & CEO
Sold at will
$598.12K 65,478 at 9.13
8.7%
Not planned
21 Jul 2025
Rozek Elizabeth General Counsel and CCO
Sold at will
$98.47K 10,780 at 9.13
5.5%
Not planned
21 Jul 2025
Martins Eduardo Bruno Chief Medical Officer
Sold at will
$75.61K 8,277 at 9.13
7.2%
Not planned
23 Jul 2024
Kemble George Executive Chairman
Sold on a plan
$74.83K 23,625 at 3.17
16.6%
Planned (10b5-1)
19 Jul 2024
Kemble George Executive Chairman
Sold at will
$43.60K 14,062 at 3.10
9.0%
Not planned
19 Jul 2024
Rozek Elizabeth General Counsel and CCO
Sold at will
$33.83K 10,914 at 3.10
6.4%
Not planned
19 Jul 2024
Martins Eduardo Bruno Chief Medical Officer
Sold at will
$25.91K 8,357 at 3.10
9.3%
Not planned
26 Mar 2024
Happel David President & CEO
Bought
$63.73K 12,100 at 5.27
1.9%
Largest buy in 3 yrs
7 Dec 2023
Happel David President & CEO
Bought
$6.56K 1,600 at 4.10
0.3%
Largest buy in 3 yrs
16 Nov 2023
Happel David President & CEO
Bought
$1.39K 590 at 2.35
opened
First buy on file
18 Jul 2023
SEIDENBERG BETH C Director · indirect
Bought
$750.00K 46,875 at 16.00
opened
First buy on file
18 Jul 2023
Bought
$480.00K 30,000 at 16.00
0.8%
First buy on file
18 Jul 2023
Sold at will
$10.59K 662 at 16.00
0.0%
Not planned
Showing 1–23 of 23.