STEM (Stem, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by STEM officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-11 | LAURA D TYSON | Director | A | — | — |
| 2026-08-11 | Adam Daley | Director | M | — | — |
| 2026-08-11 | Ira M Birns | Director | M | — | — |
| 2026-08-11 | Anil Tammineedi | Director | M | — | — |
| 2026-08-11 | Krishna Shivram | Director | M | — | — |
| 2026-08-11 | Vasudevan Guruswamy | Director | M | — | — |
| 2026-08-11 | DAVID S BUZBY | Director | M | — | — |
| 2026-07-21 | Brian Musfeldt | Chief Financial Officer | MIXED | — | — |
| 2026-07-02 | Arun Narayanan | Chief Executive Officer | MIXED | — | — |
| 2026-07-02 | Michael James Carlson | President, Managed Services | MIXED | — | — |
| 2026-07-02 | Matthew Tappin | President, Software Products | MIXED | — | — |
| 2026-07-02 | Saul R. Laureles | Chief Legal Officer | MIXED | — | — |
| 2026-06-04 | Krishna Shivram | Director | A | — | — |
| 2026-06-04 | Ira M Birns | Director | A | — | — |
| 2026-06-04 | Anil Tammineedi | Director | A | — | — |
| 2026-06-04 | LAURA D TYSON | Director | A | — | — |
| 2026-06-04 | Adam Daley | Director | A | — | — |
| 2026-06-04 | Vasudevan Guruswamy | Director | A | — | — |
| 2026-06-04 | DAVID S BUZBY | Director | A | — | — |
| 2026-03-13 | Matthew Tappin | President, Software Products | Sell | — | — |
| 2026-03-10 | Michael James Carlson | President, Managed Services | MIXED | — | — |
| 2026-03-10 | Saul R. Laureles | Chief Legal Officer | MIXED | — | — |
| 2026-03-10 | Matthew Tappin | President, Software Products | MIXED | — | — |
| 2026-03-10 | Arun Narayanan | Chief Executive Officer | MIXED | — | — |
| 2026-03-04 | Saul R. Laureles | Chief Legal Officer | Sell | — | — |
| 2026-03-04 | Matthew Tappin | President, Software Products | Sell | — | — |
| 2026-03-02 | Michael James Carlson | President, Managed Services | A | — | — |
| 2026-03-02 | Matthew Tappin | President, Software Products | M | — | — |
| 2026-03-02 | Brian Musfeldt | Chief Financial Officer | A | — | — |
| 2026-03-02 | Saul R. Laureles | Chief Legal Officer | M | — | — |
| 2026-03-02 | Arun Narayanan | Chief Executive Officer | A | — | — |
| 2026-02-23 | Matthew Tappin | President, Software Products | Sell | — | — |
| 2026-02-19 | Saul R. Laureles | Chief Legal Officer | F | — | — |
| 2026-02-19 | Michael James Carlson | President, Managed Services | F | — | — |
| 2026-02-19 | Matthew Tappin | President, Software Products | F | — | — |
| 2026-02-18 | Matthew Tappin | President, Software Products | M | — | — |
| 2026-02-18 | Saul R. Laureles | Chief Legal Officer | M | — | — |
| 2026-02-18 | Michael James Carlson | President, Managed Services | M | — | — |
| 2026-01-07 | Jeffrey T Cabot | Chief Accounting Officer | A | — | — |
| 2025-11-24 | Matthew Tappin | President, Software Products | Sell | — | — |
| 2025-11-19 | Rahul Shukla | Chief Accounting Officer | Sell | — | — |
| 2025-11-12 | Michael James Carlson | President, Managed Services | MIXED | — | — |
| 2025-11-12 | Matthew Tappin | President, Software Products | MIXED | — | — |
| 2025-11-12 | Rahul Shukla | Chief Accounting Officer | MIXED | — | — |
| 2025-11-12 | Saul R. Laureles | Chief Legal Officer | MIXED | — | — |
| 2025-10-02 | Brian Musfeldt | Chief Financial Officer | A | — | — |
| 2025-08-19 | Brian Musfeldt | Chief Financial Officer | A | — | — |
| 2025-07-30 | Michael James Carlson | See Remarks | A | — | — |
| 2025-07-30 | Matthew Tappin | PRESIDENT, SOFTWARE DIVISION | A | — | — |
| 2025-07-30 | Saul R. Laureles | CHIEF LEGAL OFFICER | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 475,481 | — |
| — | 10%+ Owner | 475,481 | — |
| — | 10%+ Owner | 475,481 | — |
| — | Director | 229,965 | — |
| — | President, Transformational | 49,253 | — |
| — | Chief Legal Officer | 34,525 | — |
| — | President, Managed Services | 27,208 | — |
| — | CEO and Director | 25,329 | — |
| — | Director | 24,347 | — |
| — | Chief Financial Officer | 20,713 | — |
| — | Chief Executive Officer | 19,109 | — |
| — | Director | 15,473 | — |
| — | Director | 14,207 | — |
| — | Director | 12,301 | — |
| — | Chief Revenue Officer | 11,640 | — |
| — | Director | 10,597 | — |
| — | Director | 10,597 | — |
| — | Chief Technology Officer | 9,958 | — |
| — | Chief Technology Officer | 9,310 | — |
| — | Chief People Officer | 9,228 | — |
| — | Chief Strategy Officer | 9,083 | — |
| — | President, Software Products | 7,823 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the STEM quote page; the site-wide leaderboard is on the insider transactions hub.