STEM (STEM) stock: insider trades, news & valuation
Heavy sellingShare price and insider trades
STEM insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 6 sold $390K of STEM stock on the open market.
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STEM insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | $46K | 6 |
| Q2 2026 | — | 0 | — | 0 |
| Q1 2026 | — | 0 | $114K | 9 |
| Q4 2025 | — | 0 | $229K | 2 |
Valuation, profit and volume
Summary
Over the past 12 months, 0 STEM, INC. insiders reported open-market purchases totaling $0, while 6 insiders reported sales totaling $390K. 1 of 17 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Sep 29SEC | Michael James CarlsonPresident | Sell | 14626,020 held (−1%) | $4.67 | $682 | -10.9% | — |
| Jul 21SEC | Brian MusfeldtCFO | Sell | 9962,379 held (−30%) | $6.11 | $6K | -31.9% | — |
| Jul 2SEC | Arun NarayananCEO | Sell | 1,99619,109 held (−9%) | $7.85 | $16K | -47.0% | — |
| Jul 2SEC | Michael James CarlsonPresident | Sell | 1,34725,861 held (−5%) | $7.85 | $11K | -47.0% | — |
| Jul 2SEC | Matthew TappinPresident | Sell | 9969,577 held (−9%) | $7.85 | $8K | -47.0% | — |
| Jul 2SEC | Saul R. LaurelesGeneral Counsel | Sell | 67534,525 held (−2%) | $7.85 | $5K | -47.0% | — |
| Mar 13SEC | Matthew TappinPresident | Sell Plan | 4022,823 held (−12%) | $10.83 | $4K | -61.6% | — |
| Mar 10SEC | Arun NarayananCEO | Sell | 5,14512,980 held (−28%) | $11.12 | $57K | -62.6% | — |
| Mar 10SEC | Michael James CarlsonPresident | Sell | 2,07919,458 held (−10%) | $11.12 | $23K | -62.6% | — |
| Mar 10SEC | Saul R. LaurelesGeneral Counsel | Sell | 94227,450 held (−3%) | $11.12 | $10K | -62.6% | — |
| Mar 10SEC | Matthew TappinPresident | Sell | 6553,225 held (−17%) | $11.12 | $7K | -62.6% | — |
| Mar 4SEC | Matthew TappinPresident | Sell | 3002,607 held (−10%) | $9.67 | $3K | -57.0% | — |
| Mar 4SEC | Saul R. LaurelesGeneral Counsel | Sell | 29225,476 held (−1%) | $9.67 | $3K | -57.0% | — |
| Mar 4SEC | Matthew TappinPresident | Sell | 1852,422 held (−7%) | $10.00 | $2K | -58.4% | — |
| Feb 23SEC | Matthew TappinPresident | Sell | 3662,237 held (−14%) | $11.40 | $4K | -63.5% | — |
| Nov 24SEC | Matthew TappinPresident | Sell | 9,5841,872 held (−84%) | $17.70 | $170K | -76.5% | — |
| Nov 19SEC | Rahul ShuklaChief Accounting Officer | Sell | 3,674 | $16.21 | $60K | -74.3% | — |
Insiders at STEM, INC.
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Matthew TappinPresident | — | $198K | Jul 2, 2026 | — |
| Arun NarayananCEO | — | $73K | Jul 2, 2026 | — |
| Rahul ShuklaChief Accounting Officer | — | $60K | Nov 19, 2025 | — |
| Michael James CarlsonPresident | — | $34K | Sep 29, 2026 | — |
| Saul R. LaurelesGeneral Counsel | — | $19K | Jul 2, 2026 | — |
| Brian MusfeldtCFO | — | $6K | Jul 21, 2026 | — |
STEM stock: common questions
Are STEM, INC. insiders buying STEM stock?
In the past 12 months, 0 insiders reported open-market purchases of STEM worth $0.
Are STEM, INC. insiders selling STEM stock?
6 insiders reported sales worth $390K over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is STEM's 52-week range?
Over the past year STEM has traded between $3.82 and $29.79. It last closed at $4.16 on Oct 9, 2026.