Stem, Inc. Insider Trading

STEM

Last 12 months

Insiders sold 390K and bought nothing on the open market.

1% of the selling was scheduled in advance under 10b5-1 plans. President, Software Products Matthew Tappin sold 170K on Nov 11, 2025, 84% of their stake, outside a plan. The last open-market buy by an executive or director was in Mar 2024.

Net open-market

−390K

0 buys · 16 sales

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

0 / 6

executives and directors

Last open-market buy

Mar 2024

Mar 18, 2024

Get an email when STEM's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Sep 29	Michael James Carlson President, Managed Services	SoldNo plan	146	$4.67	$682	0.6%	Form 4
Jul 20	Brian Musfeldt Chief Financial Officer	SoldNo plan	996	$6.11	6K	30%	Form 4
Jul 2	Arun Narayanan Chief Executive Officer	SoldNo plan	1,996	$7.85	16K	9.5%	Form 4
Jul 2	Matthew Tappin President, Software Products	SoldNo plan	996	$7.85	8K	9.4%	Form 4
Jul 2	Michael James Carlson President, Managed Services	SoldNo plan	1,347	$7.85	11K	5.0%	Form 4
Jul 2	Saul R. Laureles Chief Legal Officer	SoldNo plan	675	$7.85	5K	1.9%	Form 4
Mar 11	Matthew Tappin President, Software Products	Sold10b5-1 plan	402	$10.83	4K	12%	Form 4
Mar 10	Arun Narayanan Chief Executive Officer	SoldNo plan	5,145	$11.12	57K	28%	Form 4
Mar 10	Matthew Tappin President, Software Products	SoldNo plan	655	$11.12	7K	17%	Form 4
Mar 10	Michael James Carlson President, Managed Services	SoldNo plan	2,079	$11.12	23K	9.7%	Form 4
Mar 10	Saul R. Laureles Chief Legal Officer	SoldNo plan	942	$11.12	10K	3.3%	Form 4
Mar 3 – 4	Matthew Tappin President, Software Products	SoldNo plan 2 parts	485	$9.80 average	5K	17%	Form 4
Mar 3	Saul R. Laureles Chief Legal Officer	SoldNo plan	292	$9.67	3K	1.1%	Form 4
Feb 20	Matthew Tappin President, Software Products	SoldNo plan	366	$11.40	4K	14%	Form 4
Nov 18, 2025	Rahul Shukla Chief Accounting Officer	SoldNo plan	3,674	$16.21	60K	100%	Form 4
Nov 11, 2025	Matthew Tappin President, Software Products	SoldNo plan	9,584	$17.70	170K	84%	Form 4
May 30, 2025 – Jun 16, 2025	Matthew Tappin President, Software Division	Sold10b5-1 plan 2 parts	21,987	$0.45 average	10K	37%	Form 4
Jan 23, 2025 – May 2, 2025	Rahul Shukla Chief Accounting Officer	SoldNo plan 4 parts	44,618	$0.52 average	23K	100%	Form 4
May 2, 2025	Saul R. Laureles Chief Legal Officer	SoldNo plan	809	$0.53	$429	0.3%	Form 4
Mar 7, 2025 – Mar 12, 2025	Matthew Tappin President, Software Division	SoldNo plan 2 parts	18,715	$0.41 average	8K	25%	Form 4
Mar 12, 2025	Michael James Carlson Chief Operating Officer	SoldNo plan	27,739	$0.40	11K	12%	Form 4
Feb 20, 2025	Hofeldt Albert Chief Technology Officer	SoldNo plan	13,294	$0.63	8K	6.7%	Form 4
Feb 20, 2025	Matthew Tappin President, Software Division	SoldNo plan	8,130	$0.63	5K	20%	Form 4

Sep 29No plan
Michael James Carlson
President, Managed Services · sold 146 at $4.67
$682
0.6% of stake
Jul 20No plan
Brian Musfeldt
Chief Financial Officer · sold 996 at $6.11
6K
30% of stake
Jul 2No plan
Arun Narayanan
Chief Executive Officer · sold 1,996 at $7.85
16K
9.5% of stake
Jul 2No plan
Matthew Tappin
President, Software Products · sold 996 at $7.85
8K
9.4% of stake
Jul 2No plan
Michael James Carlson
President, Managed Services · sold 1,347 at $7.85
11K
5.0% of stake
Jul 2No plan
Saul R. Laureles
Chief Legal Officer · sold 675 at $7.85
5K
1.9% of stake
Mar 1110b5-1 plan
Matthew Tappin
President, Software Products · sold 402 at $10.83
4K
12% of stake
Mar 10No plan
Arun Narayanan
Chief Executive Officer · sold 5,145 at $11.12
57K
28% of stake
Mar 10No plan
Matthew Tappin
President, Software Products · sold 655 at $11.12
7K
17% of stake
Mar 10No plan
Michael James Carlson
President, Managed Services · sold 2,079 at $11.12
23K
9.7% of stake
Mar 10No plan
Saul R. Laureles
Chief Legal Officer · sold 942 at $11.12
10K
3.3% of stake
Mar 3 – 4No plan
Matthew Tappin
President, Software Products · sold 485 at avg $9.80
5K
17% of stake
Mar 3No plan
Saul R. Laureles
Chief Legal Officer · sold 292 at $9.67
3K
1.1% of stake
Feb 20No plan
Matthew Tappin
President, Software Products · sold 366 at $11.40
4K
14% of stake
Nov 18, 2025No plan
Rahul Shukla
Chief Accounting Officer · sold 3,674 at $16.21
60K
100% of stake
Nov 11, 2025No plan
Matthew Tappin
President, Software Products · sold 9,584 at $17.70
170K
84% of stake
May 30, 2025 – Jun 16, 202510b5-1 plan
Matthew Tappin
President, Software Division · sold 21,987 at avg $0.45
10K
37% of stake
Jan 23, 2025 – May 2, 2025No plan
Rahul Shukla
Chief Accounting Officer · sold 44,618 at avg $0.52
23K
100% of stake
May 2, 2025No plan
Saul R. Laureles
Chief Legal Officer · sold 809 at $0.53
$429
0.3% of stake
Mar 7, 2025 – Mar 12, 2025No plan
Matthew Tappin
President, Software Division · sold 18,715 at avg $0.41
8K
25% of stake
Mar 12, 2025No plan
Michael James Carlson
Chief Operating Officer · sold 27,739 at $0.40
11K
12% of stake
Feb 20, 2025No plan
Hofeldt Albert
Chief Technology Officer · sold 13,294 at $0.63
8K
6.7% of stake
Feb 20, 2025No plan
Matthew Tappin
President, Software Division · sold 8,130 at $0.63
5K
20% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch STEM, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

Peers

Services-Computer Integrated Systems Design · Pick stocks to compare with STEM

CompareIntrinsic value

SMRTSmartRent Inc.

$1.62+18.25%33

WYYWidePoint Corporation

$6.72-4.00%54

TLSTelos Corporation

$5.06-1.75%54

SLPSimulations Plus, Inc.

No recent price63

CREXCreative Realities Inc.

$2.16+0.00%15

CSPICSP Inc.

$7.48+1.91%10

OSPNOneSpan Inc.

$23.66-3.23%71

IONQIonQ, Inc.

$29.54-1.50%40

Spot a number that looks wrong? Check it in STEM's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

2 of 2 free stocks used today

Keep analysing STEM

Create a free account and get 14 days of Premium: every stock and every tool.

Unlimited stocksQuality, fair value and dividends for 10,000+ stocks
Stock screenerFilter on quality, valuation and dividend safety
Portfolio trackerReal return, dividend calendar and portfolio quality
Editable DCFChange the assumptions and watch fair value move
Compare side by sideUp to 10 stocks in one table
Unlimited alertsPrice, P/E, Quality Score and yield

No card. Moves to Free after, unless you upgrade.

Already have an account?

Or come back tomorrow. Stocks on your watchlist are always free to view.