STEM, INC. (STEM)
Data as of , from SEC Form 4 filings.
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About STEM, INC. (STEM)
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.
- HOUSTON, TX
- 423
- 2021
- NYSE
STEM Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 1 | 146 | $682 |
| Grant or award | 1 | 7,486 | |
| Option exercise | 15 | 97,928 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
STEM insider transactions (Form 4)
6161 Form 4 filings on record, the earliest from Nov 1, 2024, newest first. Filing history page 2 of 3.
| Traded | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Brian Musfeldt - Officer | Grant or award | Restricted Stock Unit | 25,800 | $0.00 | - | |
| Brian Musfeldt - Officer | Grant or award | Performance Stock Unit | 17,200 | $0.00 | - | |
| Matthew Tappin - Officer | Option exercise | Common Stock, Par Value $0.0001 Per Share | 670 | - footnote F1 | - | |
| Matthew Tappin - Officer | Grant or award | Restricted Stock Unit | 25,800 | $0.00 | - | |
| Matthew Tappin - Officer | Grant or award | Performance Stock Unit | 17,200 | $0.00 | - | |
| Matthew Tappin - Officer | Option exercise | Restricted Stock Unit | 670 | $0.00 | - | |
| ||||||
| Matthew Tappin - Officer | Open-market sale | Common Stock, Par Value $0.0001 Per Share | 366 | $11.40 | $4K | |
| Michael James Carlson - Officer | Option exercise | Common Stock, Par Value $0.0001 Per Share | 1,342 | - footnote F1 | - | |
| Michael James Carlson - Officer | Option exercise | Restricted Stock Unit | 1,342 | $0.00 | - | |
| ||||||
| Matthew Tappin - Officer | Option exercise | Common Stock, Par Value $0.0001 Per Share | 1,253 | - footnote F1 | - | |
| Matthew Tappin - Officer | Option exercise | Restricted Stock Unit | 1,253 | $0.00 | - | |
| ||||||
| Saul R. Laureles - Officer | Option exercise | Common Stock, Par Value $0.0001 Per Share | 1,790 | - footnote F1 | - | |
| Saul R. Laureles - Officer | Option exercise | Restricted Stock Unit | 1,790 | $0.00 | - | |
| ||||||
| Matthew Tappin - Officer | Open-market sale | Common Stock, Par Value $0.0001 Per Share | 9,584 | $17.70 | $170K | |
| Rahul Shukla - Officer | Open-market sale | Common Stock, Par Value $0.0001 Per Share | 3,674 | $16.21 | $60K | |
| Matthew Tappin - Officer | Option exercise | Restricted Stock Unit | 15,000 | $0.00 | - | |
| Matthew Tappin - Officer | Option exercise | Common Stock, Par Value $0.0001 Per Share | 15,000 | - footnote F1 | - | |
| Matthew Tappin - Officer | Tax withholding / forfeiture | Common Stock, Par Value $0.0001 Per Share | 5,416 | $18.27 | $99K | |
| ||||||
| Michael James Carlson - Officer | Option exercise | Restricted Stock Unit | 13,750 | $0.00 | - | |
| Michael James Carlson - Officer | Option exercise | Common Stock, Par Value $0.0001 Per Share | 13,750 | - footnote F1 | - | |
| Michael James Carlson - Officer | Tax withholding / forfeiture | Common Stock, Par Value $0.0001 Per Share | 6,743 | $18.27 | $123K | |
| ||||||
| Rahul Shukla - Officer | Option exercise | Common Stock, Par Value $0.0001 Per Share | 5,750 | - footnote F1 | - | |
| Rahul Shukla - Officer | Tax withholding / forfeiture | Common Stock, Par Value $0.0001 Per Share | 2,076 | $18.27 | $38K | |
| Rahul Shukla - Officer | Option exercise | Restricted Stock Unit | 5,750 | $0.00 | - | |
| ||||||
| Saul R. Laureles - Officer | Option exercise | Common Stock, Par Value $0.0001 Per Share | 13,750 | - footnote F1 | - | |
| Saul R. Laureles - Officer | Tax withholding / forfeiture | Common Stock, Par Value $0.0001 Per Share | 3,379 | $18.27 | $62K | |
| Saul R. Laureles - Officer | Option exercise | Restricted Stock Unit | 13,750 | $0.00 | - | |
| ||||||
| Michael James Carlson - Officer | Grant or award | Restricted Stock Unit | 10,000 | $0.00 | - | |
| Michael James Carlson - Officer | Grant or award | Performance Stock Unit | 10,000 | $0.00 | - | |
| Matthew Tappin - Officer | Grant or award | Restricted Stock Unit | 10,000 | $0.00 | - | |
| Matthew Tappin - Officer | Grant or award | Performance Stock Unit | 10,000 | $0.00 | - | |
| Saul R. Laureles - Officer | Grant or award | Restricted Stock Unit | 10,000 | $0.00 | - | |
| Saul R. Laureles - Officer | Grant or award | Performance Stock Unit | 10,000 | $0.00 | - | |
| Brian Musfeldt - Officer | Grant or award | Restricted Stock Unit | 2,500 | $0.00 | - | |
| Brian Musfeldt - Officer | Grant or award | Performance Stock Unit | 6,750 | $0.00 | - | |
| Brian Musfeldt - Officer | Grant or award | Stock Option | 1,250 | $0.00 | - | |
| David S. Buzby | Gift | Common Stock, Par Value $0.0001 Per Share | 5,511 | $0.00 | - | |
| David S. Buzby | Gift | Common Stock, Par Value $0.0001 Per Share | 5,511 | $0.00 | - | |
| Michael James Carlson - Officer | Grant or award | Restricted Stock Unit | 11,000 | $0.00 | - | |
| Michael James Carlson - Officer | Grant or award | Performance Stock Unit | 5,500 | $0.00 | - | |
| Michael James Carlson - Officer | Grant or award | Stock Options | 5,500 | $0.00 | - | |
| Rahul Shukla - Officer | Grant or award | Restricted Stock Unit | 4,500 | $0.00 | - | |
| Rahul Shukla - Officer | Grant or award | Performance Stock Unit | 2,250 | $0.00 | - | |
| Rahul Shukla - Officer | Grant or award | Stock Options | 2,250 | $0.00 | - | |
| Matthew Tappin - Officer | Grant or award | Restricted Stock Unit | 11,000 | $0.00 | - | |
| Matthew Tappin - Officer | Grant or award | Performance Stock Unit | 5,500 | $0.00 | - | |
| Matthew Tappin - Officer | Grant or award | Stock Options | 5,500 | $0.00 | - | |
| Saul R. Laureles - Officer | Grant or award | Restricted Stock Unit | 11,000 | $0.00 | - | |
| Saul R. Laureles - Officer | Grant or award | Performance Stock Unit | 5,500 | $0.00 | - | |
| Saul R. Laureles - Officer | Grant or award | Stock Options | 5,500 | $0.00 | - | |
| David S. Buzby | Grant or award | Restricted Stock Unit | 149,723 | $0.00 | - | |
| Laura D. Tyson | Grant or award | Restricted Stock Unit | 149,723 | $0.00 | - | |
| David S. Buzby | Option exercise | Common Stock, Par Value $0.0001 Per Share | 110,236 | $0.00 | - | |
| David S. Buzby | Option exercise | Restricted Stock Unit | 110,236 | $0.00 | - | |
| Laura D. Tyson | Option exercise | Common Stock, Par Value $0.0001 Per Share | 110,236 | $0.00 | - | |
| Laura D. Tyson | Option exercise | Restricted Stock Unit | 110,236 | $0.00 | - | |
| Michael James Carlson - Officer | Grant or award | Restricted Stock Unit | 100,000 | $0.00 | - | |
| Hofeldt Albert - Officer | Grant or award | Restricted Stock Unit | 275,000 | $0.00 | - | |
| Kim Homenock - Officer | Grant or award | Restricted Stock Unit | 275,000 | $0.00 | - | |
| Michael James Carlson - Officer | Grant or award | Restricted Stock Unit | 175,000 | $0.00 | - | |
| Matthew Tappin - Officer | Grant or award | Restricted Stock Unit | 300,000 | $0.00 | - | |
Item 2.01, 3.01, 7.01, 9.01
Item 2.01, 7.01, 9.01
Item 5.02, 5.07, 9.01
Item 2.02, 7.01, 9.01
Recent STEM Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Michael James Carlson | Officer | 146 | $671 | View on EDGAR | |
| Brian Musfeldt | Officer | 1,138 |
STEM insider trading FAQ
What is the latest insider trade for STEM?
STEM, INC. (STEM) had 8 insider filings in the last 90 days, with the most recent on 30 September 2026. The full record for STEM runs to 61 Form 4 filings, the earliest from 1 November 2024. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
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?
1 insider sale of STEM was filed in the last 90 days, totaling $682.
Where can I see STEM SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects STEM Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Information Technology companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Michael James Carlson view on EDGAR
- - David S. Buzby view on EDGAR
- - Krishna Shivram view on EDGAR
- - Adam Daley view on EDGAR
- - Anil Tammineedi view on EDGAR
- - Vasudevan Guruswamy view on EDGAR
- - Laura D. Tyson view on EDGAR
- - Ira M. Birns view on EDGAR
- - Brian Musfeldt view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Information Technology
- Where STEM's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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