STEM, INC. Insider Trading Activity
Every SEC Form 4 insider transaction reported for STEM, INC. (STEM), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are STEM insiders buying or selling?
In the last 12 months, STEM, INC. insiders reported 0 open-market purchases ($0) and 15 sales ($219.9K) — net selling of $219.9K. Since April 2021, Trabud has recorded 143 Form 4 filings for STEM: 8 buys ($2.4M) and 135 sells ($44.5M).
Source: SEC EDGAR Form 4
What stands out
- No STEM, INC. insider made an open-market purchase in the last 12 months; the 15 reported open-market sales totaled $219.9K.
Key Statistics (April 2021 – Sep 30, 2026)
Total Form 4 filings
143
SEC EDGAR
Insider filers
20
Insider buys (8)
$2.4M
Insider sells (135)
$44.5M
Insider sentiment
Net sellingNet insider flow of $42.1M in net selling since April 2021, and $219.9K in net selling over the last 12 months.
Recent STEM insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Sep 30, 2026 | Michael James Carlson | President, Managed Services | Sale | 146 | $4.67 | $681.82 | SEC ↗ |
| Jul 21, 2026 | Brian Musfeldt | Chief Financial Officer | Sale | 996 | $6.11 | $6.1K | SEC ↗ |
| Jul 2, 2026 | Saul R. Laureles | Chief Legal Officer | Sale | 675 | $7.85 | $5.3K | SEC ↗ |
| Jul 2, 2026 | Matthew Tappin | President, Software Products | Sale | 996 | $7.85 | $7.8K | SEC ↗ |
| Jul 2, 2026 | Michael James Carlson | President, Managed Services | Sale | 1.3K | $7.85 | $10.6K | SEC ↗ |
| Jul 2, 2026 | Arun Narayanan | Chief Executive Officer | Sale | 2.0K | $7.85 | $15.7K | SEC ↗ |
| Mar 13, 2026 | Matthew Tappin | President, Software Products | Sale | 402 | $10.83 | $4.4K | SEC ↗ |
| Mar 10, 2026 | Matthew Tappin | President, Software Products | Sale | 655 | $11.12 | $7.3K | SEC ↗ |
| Mar 10, 2026 | Saul R. Laureles | Chief Legal Officer | Sale | 942 | $11.12 | $10.5K | SEC ↗ |
| Mar 10, 2026 | Michael James Carlson | President, Managed Services | Sale | 2.1K | $11.12 | $23.1K | SEC ↗ |
| Mar 10, 2026 | Arun Narayanan | Chief Executive Officer | Sale | 5.1K | $11.12 | $57.2K | SEC ↗ |
| Mar 4, 2026 | Saul R. Laureles | Chief Legal Officer | Sale | 292 | $9.67 | $2.8K | SEC ↗ |
| Mar 4, 2026 | Matthew Tappin | President, Software Products | Sale | 485 | $9.80 | $4.8K | SEC ↗ |
| Feb 23, 2026 | Matthew Tappin | President, Software Products | Sale | 366 | $11.40 | $4.2K | SEC ↗ |
| Nov 19, 2025 | Rahul Shukla | Chief Accounting Officer | Sale | 3.7K | $16.21 | $59.6K | SEC ↗ |
| Jun 18, 2025 | Matthew Tappin | President, Software Division | Sale | 22.0K | $0.45 | $9.9K | SEC ↗ |
| May 7, 2025 | Rahul Shukla | Chief Accounting Officer | Sale | 44.6K | $0.52 | $23.2K | SEC ↗ |
| May 6, 2025 | Saul R. Laureles | Chief Legal Officer | Sale | 809 | $0.53 | $429.58 | SEC ↗ |
| Mar 17, 2025 | Matthew Tappin | President, Software Division | Sale | 18.7K | $0.41 | $7.6K | SEC ↗ |
| Mar 17, 2025 | Michael James Carlson | Chief Operating Officer | Sale | 27.7K | $0.40 | $11.2K | SEC ↗ |
| Feb 22, 2025 | Hofeldt Albert | Chief Technology Officer | Sale | 13.3K | $0.63 | $8.3K | SEC ↗ |
| Feb 22, 2025 | Matthew Tappin | President, Software Division | Sale | 8.1K | $0.63 | $5.1K | SEC ↗ |
| Jun 10, 2024 | David S Buzby | Director | Purchase | 96.3K | $1.83 | $176.2K | SEC ↗ |
| May 30, 2024 | Matthew Tappin | President, Asset Management | Sale | 1.4K | $1.32 | $1.8K | SEC ↗ |
| May 7, 2024 | John Eugene Carrington | CEO and Director | Sale | 194.2K | $1.85 | $359.2K | SEC ↗ |
Showing the 25 most recent of 143 Form 4 filings for STEM, INC..
Most active STEM insiders
- John Eugene Carrington18 filings
- Matthew Tappin17 filings
- William John Bush13 filings
- Saul R. Laureles12 filings
- Larsh Johnson11 filings
Ask anything about STEM insider activity
Use Trabud's AI agent to query STEM, INC.'s Form 4 history in plain English — "Show me STEM CEO purchases this year" or compare it against any other ticker.
Open the AI agentSTEM insider trading FAQ
Are STEM, INC. insiders buying or selling?
In the last 12 months, STEM, INC. insiders reported 0 open-market purchases ($0) and 15 sales ($219.9K) — net selling of $219.9K. Since April 2021, Trabud has recorded 143 Form 4 filings for STEM: 8 buys ($2.4M) and 135 sells ($44.5M). Over the full record that is net selling of $42.1M.
How many insiders trade STEM stock?
20 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for STEM, INC.. The most recent filing was accepted on Sep 30, 2026.
Where does Trabud get STEM insider trading data?
All STEM insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.