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STEM, INC. (STEM) XNYS SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN Net insider selling (90d)
Latest STEM Insider Trades Stem Inc is a provider of energy storage systems. The company bundles third-party hardware with its proprietary Athena software to provide customers a turnkey solution. Stem sells its solutions to commercial and industrial customers as well as independent power producers and renewable developers. Its solutions help customers maximize renewable energy generation and help build a cleaner and more resilient grid. The Company operates as one operating segment that is focused exclusively on technology services that transform the way energy is distributed and consumed.
Headquarters HOUSTON, TX
Employees 423
Listed 2021
Exchange XNYS https://www.stem.com SEC filings for STEM on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market sale 5 6,010 $45K Grant or award 8 92,662 Option exercise 29 166,818
STEM Insider Transactions (Form 4) 60 60 Form 4 filings on record, the earliest from Nov 1, 2024, newest first. Filing history page 2 of 2.
Date Insider Transaction Security Shares Price Value Mar 1, 2026 MT Matthew Tappin - Officer Option exercise Common Stock, Par Value $0.0001 Per Share 670
Recent STEM Form 8-K Filings 5
Recent STEM Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Aug 10, 2026 Musfeldt Brian Officer 1,138 $6K View on EDGAR Aug 10, 2026 Tappin Matthew Officer
STEM Insider Trading - FAQ
What is the latest insider trade for STEM? STEM, INC. (STEM) had 19 insider filings in the last 90 days, with the most recent on 2026-08-12. The full record for STEM runs to 60 Form 4 filings, the earliest from 2024-11-01. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying STEM stock? No insider purchases of STEM were filed in the last 90 days.
How many insiders are selling STEM stock? 5 insider sales of STEM were filed in the last 90 days, totaling $45K.
Where can I see STEM SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks STEM Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow STEM insider buys? Create a free InsiderAlpha account and press Watch on this page to add STEM to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Information Technology Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Related Companies - Recent Insider Activity What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track STEM insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
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Market cap $52.37M
P/E ratio -
Dividend yield -
Average volume 128.3K
52 week high $32.23
52 week low $4.92
Today's high -
Today's low -
Open -
Volume -
Previous close $5.44
Shares outstanding 9.63M Market cap
$52.37M
423 employees
STEM Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
0% Buying 100% Selling
0 insider purchases totaling $0 against 5 sales totaling $45K.
Most-Active STEM Insiders - Last 90 Days 10 Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Feb 26, 2026 MT Matthew Tappin - Officer Grant or award Restricted Stock Unit 25,800 $0.00 -
Feb 26, 2026 MT Matthew Tappin - Officer Grant or award Performance Stock Unit 17,200 $0.00 -
Mar 1, 2026 MT Matthew Tappin - Officer Option exercise Restricted Stock Unit 670 $0.00 -
Feb 20, 2026 MT Matthew Tappin - Officer Open-market sale Common Stock, Par Value $0.0001 Per Share 366 $11.40 $4K
Feb 15, 2026 MC Michael James Carlson - Officer Option exercise Common Stock, Par Value $0.0001 Per Share 1,342 - -
Feb 15, 2026 MT Matthew Tappin - Officer Option exercise Common Stock, Par Value $0.0001 Per Share 1,253 - -
Feb 15, 2026 MT Matthew Tappin - Officer Option exercise Restricted Stock Unit 1,253 $0.00 -
Feb 15, 2026 SL Saul R. Laureles - Officer Option exercise Common Stock, Par Value $0.0001 Per Share 1,790 - -
Feb 15, 2026 SL Saul R. Laureles - Officer Option exercise Restricted Stock Unit 1,790 $0.00 -
Nov 11, 2025 MT Matthew Tappin - Officer Open-market sale Common Stock, Par Value $0.0001 Per Share 9,584 $17.70 $170K
Nov 18, 2025 RS Rahul Shukla - Officer Open-market sale Common Stock, Par Value $0.0001 Per Share 3,674 $16.21 $60K
Nov 7, 2025 MT Matthew Tappin - Officer Option exercise Restricted Stock Unit 15,000 $0.00 -
Nov 7, 2025 MT Matthew Tappin - Officer Option exercise Common Stock, Par Value $0.0001 Per Share 15,000 - -
Nov 10, 2025 MT Matthew Tappin - Officer Tax withholding / forfeiture Common Stock, Par Value $0.0001 Per Share 5,416 $18.27 $99K
Nov 7, 2025 MC Michael James Carlson - Officer Option exercise Common Stock, Par Value $0.0001 Per Share 13,750 - -
Nov 10, 2025 MC Michael James Carlson - Officer Tax withholding / forfeiture Common Stock, Par Value $0.0001 Per Share 6,743 $18.27 $123K
Nov 7, 2025 RS Rahul Shukla - Officer Option exercise Common Stock, Par Value $0.0001 Per Share 5,750 - -
Nov 10, 2025 RS Rahul Shukla - Officer Tax withholding / forfeiture Common Stock, Par Value $0.0001 Per Share 2,076 $18.27 $38K
Nov 7, 2025 RS Rahul Shukla - Officer Option exercise Restricted Stock Unit 5,750 $0.00 -
Nov 7, 2025 SL Saul R. Laureles - Officer Option exercise Common Stock, Par Value $0.0001 Per Share 13,750 - -
Nov 10, 2025 SL Saul R. Laureles - Officer Tax withholding / forfeiture Common Stock, Par Value $0.0001 Per Share 3,379 $18.27 $62K
Nov 7, 2025 SL Saul R. Laureles - Officer Option exercise Restricted Stock Unit 13,750 $0.00 -
Jul 28, 2025 MT Matthew Tappin - Officer Grant or award Restricted Stock Unit 10,000 $0.00 -
Jul 28, 2025 MT Matthew Tappin - Officer Grant or award Performance Stock Unit 10,000 $0.00 -
Jul 28, 2025 SL Saul R. Laureles - Officer Grant or award Restricted Stock Unit 10,000 $0.00 -
Jul 28, 2025 SL Saul R. Laureles - Officer Grant or award Performance Stock Unit 10,000 $0.00 -
Jul 17, 2025 BM Brian Musfeldt - Officer Grant or award Restricted Stock Unit 2,500 $0.00 -
Jul 17, 2025 BM Brian Musfeldt - Officer Grant or award Performance Stock Unit 6,750 $0.00 -
Jul 17, 2025 BM Brian Musfeldt - Officer Grant or award Stock Option 1,250 $0.00 -
Jul 3, 2025 DB David S. Buzby Gift Common Stock, Par Value $0.0001 Per Share 5,511 $0.00 -
Jul 3, 2025 DB David S. Buzby Gift Common Stock, Par Value $0.0001 Per Share 5,511 $0.00 -
Jun 30, 2025 MT Matthew Tappin - Officer Grant or award Restricted Stock Unit 11,000 $0.00 -
Jun 30, 2025 MT Matthew Tappin - Officer Grant or award Performance Stock Unit 5,500 $0.00 -
Jun 30, 2025 MT Matthew Tappin - Officer Grant or award Stock Options 5,500 $0.00 -
Jun 30, 2025 SL Saul R. Laureles - Officer Grant or award Restricted Stock Unit 11,000 $0.00 -
Jun 30, 2025 SL Saul R. Laureles - Officer Grant or award Performance Stock Unit 5,500 $0.00 -
Jun 30, 2025 RS Rahul Shukla - Officer Grant or award Restricted Stock Unit 4,500 $0.00 -
Jun 30, 2025 RS Rahul Shukla - Officer Grant or award Performance Stock Unit 2,250 $0.00 -
Jun 30, 2025 RS Rahul Shukla - Officer Grant or award Stock Options 2,250 $0.00 -
Jun 4, 2025 LT Laura D. Tyson Grant or award Restricted Stock Unit 149,723 $0.00 -
Jun 4, 2025 DB David S. Buzby Grant or award Restricted Stock Unit 149,723 $0.00 -
May 29, 2025 LT Laura D. Tyson Option exercise Common Stock, Par Value $0.0001 Per Share 110,236 $0.00 -
May 29, 2025 LT Laura D. Tyson Option exercise Restricted Stock Unit 110,236 $0.00 -
May 29, 2025 DB David S. Buzby Option exercise Common Stock, Par Value $0.0001 Per Share 110,236 $0.00 -
May 29, 2025 DB David S. Buzby Option exercise Restricted Stock Unit 110,236 $0.00 -
Nov 1, 2024 MT Matthew Tappin - Officer Grant or award Restricted Stock Unit 300,000 $0.00 -
Nov 1, 2024 SL Saul R. Laureles - Officer Grant or award Restricted Stock Unit 275,000 $0.00 -
Nov 1, 2024 HA Hofeldt Albert - Officer Grant or award Restricted Stock Unit 275,000 $0.00 -
Nov 1, 2024 KH Kim Homenock - Officer Grant or award Restricted Stock Unit 275,000 $0.00 -
SYN $ASUR
ASURE SOFTWARE INC
