Insider trading

Period: 120 months Stock: STEM Role: CEO × + 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.

29 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.

29 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.

29 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.

29 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.
29 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
29 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.

29 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
2 Jul 2026
Narayanan Arun Chief Executive Officer
Sold at will
$15.67K 1,996 at 7.85
9.5%
Not planned
10 Mar 2026
Narayanan Arun Chief Executive Officer
Sold at will
$57.21K 5,145 at 11.12
28.4%
Not planned
2 May 2024
Carrington John Eugene CEO and Director
Sold on a plan
$359.22K 194,171 at 1.85
27.7%
Planned (10b5-1)
8 Mar 2024
Carrington John Eugene CEO and Director
Sold on a plan
$186.23K 85,038 at 2.19
24.5%
Planned (10b5-1)
4 Mar 2024
Carrington John Eugene CEO and Director
Sold at will
$24.51K 9,885 at 2.48
2.8%
Not planned
27 Feb 2024
Carrington John Eugene CEO and Director
Sold at will
$37.43K 13,863 at 2.70
9.1%
Not planned
1 May 2023
Carrington John Eugene CEO and Director
Sold at will
$14.83K 3,600 at 4.12
3.0%
Not planned
20 Mar 2023
Carrington John Eugene CEO and Director
Sold at will
$83.67K 13,216 at 6.33
10.6%
Not planned
17 Nov 2022
Carrington John Eugene CEO and Director
Sold, plan not stated
$388.45K 28,570 at 13.60
22.6%
16 Nov 2022
Carrington John Eugene CEO and Director
Sold, plan not stated
$394.83K 28,570 at 13.82
18.4%
6 Oct 2022
Carrington John Eugene CEO and Director
Sold, plan not stated 2×
$392.87K 28,570 at 13.75
15.6%
5 Oct 2022
Carrington John Eugene CEO and Director
Sold, plan not stated 2×
$385.55K 28,570 at 13.50
13.5%
14 Sep 2022
Carrington John Eugene CEO and Director
Sold, plan not stated 2×
$483.89K 28,570 at 16.94
11.9%
13 Sep 2022
Carrington John Eugene CEO and Director
Sold, plan not stated 2×
$464.61K 28,570 at 16.26
10.6%
17 Aug 2022
Carrington John Eugene CEO and Director
Sold, plan not stated 2×
$431.37K 28,570 at 15.10
9.6%
16 Aug 2022
Carrington John Eugene CEO and Director
Sold, plan not stated 2×
$456.58K 28,570 at 15.98
8.8%
21 Jul 2022
Carrington John Eugene CEO and Director
Sold, plan not stated
$261.95K 28,570 at 9.17
8.0%
20 Jul 2022
Carrington John Eugene CEO and Director
Sold, plan not stated
$254.84K 28,570 at 8.92
7.4%
9 Jun 2022
Carrington John Eugene CEO and Director
Sold, plan not stated
$256.90K 28,570 at 8.99
6.9%
8 Jun 2022
Carrington John Eugene CEO and Director
Sold, plan not stated
$266.94K 28,570 at 9.34
6.5%
20 May 2022
Carrington John Eugene CEO and Director
Sold, plan not stated
$213.88K 28,580 at 7.48
6.1%
19 May 2022
Carrington John Eugene CEO and Director
Sold, plan not stated
$220.96K 28,580 at 7.73
5.7%
10 May 2022
Carrington John Eugene CEO and Director
Sold, plan not stated
$38.05K 5,198 at 7.32
1.0%
9 Dec 2021
Carrington John Eugene CEO and Director
Sold, plan not stated
$394.57K 19,621 at 20.11
4.4%
8 Dec 2021
Carrington John Eugene CEO and Director
Sold, plan not stated
$4.00K 200 at 20.01
0.0%
2 Dec 2021
Carrington John Eugene CEO and Director
Sold, plan not stated
$130.31K 6,401 at 20.36
1.4%
1 Dec 2021
Carrington John Eugene CEO and Director
Sold, plan not stated 2×
$472.93K 22,375 at 21.14
4.7%
17 Nov 2021
Carrington John Eugene CEO and Director
Sold, plan not stated 2×
$988.75K 44,750 at 22.10
8.6%
16 Nov 2021
Carrington John Eugene CEO and Director
Sold, plan not stated
$1.10M 44,750 at 24.55
7.9%
Showing 1–29 of 29.