Tappin Matthew (CIK 1986259) reported 24 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-02). Recent activity: Buy STEM (5,000 shares), Buy STEM (2,750 shares), Sell STEM (996 shares), Sell STEM (402 shares), Buy STEM (1,458 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-02 | STEM, INC. (STEM) | President, Software Products | Buy | 5,000 | $39,050 |
| 2026-07-02 | STEM, INC. (STEM) | President, Software Products | Buy | 2,750 | $21,478 |
| 2026-07-02 | STEM, INC. (STEM) | President, Software Products | Sell | 996 | $7,819 |
| 2026-03-13 | STEM, INC. (STEM) | President, Software Products | Sell | 402 | $4,354 |
| 2026-03-10 | STEM, INC. (STEM) | President, Software Products | Buy | 1,458 | $0 |
| 2026-03-10 | STEM, INC. (STEM) | President, Software Products | Sell | 655 | $7,284 |
| 2026-03-04 | STEM, INC. (STEM) | President, Software Products | Sell | 300 | $2,901 |
| 2026-03-04 | STEM, INC. (STEM) | President, Software Products | Sell | 185 | $1,850 |
| 2026-03-02 | STEM, INC. (STEM) | President, Software Products | Buy | 670 | $0 |
| 2026-02-23 | STEM, INC. (STEM) | President, Software Products | Sell | 366 | $4,172 |
| 2026-02-19 | STEM, INC. (STEM) | President, Software Products | Sell | 522 | $5,899 |
| 2026-02-18 | STEM, INC. (STEM) | President, Software Products | Buy | 1,253 | $0 |
| 2025-11-24 | STEM, INC. (STEM) | President, Software Products | Sell | 9,584 | $169,637 |
| 2025-11-12 | STEM, INC. (STEM) | President, Software Products | Buy | 15,000 | $0 |
| 2025-11-12 | STEM, INC. (STEM) | President, Software Products | Sell | 5,416 | $98,950 |
| 2025-06-18 | STEM, INC. (STEM) | President, Software Division | Buy | 2,775 | $0 |
| 2025-06-18 | STEM, INC. (STEM) | President, Software Division | Sell | 1,164 | $0 |
| 2025-06-18 | STEM, INC. (STEM) | President, Software Division | Sell | 20,823 | $0 |
| 2025-03-17 | STEM, INC. (STEM) | President, Software Division | Buy | 13,397 | $0 |
| 2025-03-17 | STEM, INC. (STEM) | President, Software Division | Sell | 5,645 | $0 |
| 2025-03-17 | STEM, INC. (STEM) | President, Software Division | Buy | 29,167 | $0 |
| 2025-03-17 | STEM, INC. (STEM) | President, Software Division | Sell | 13,070 | $0 |
| 2025-02-21 | STEM, INC. (STEM) | President, Software Division | Buy | 24,316 | $0 |
| 2025-02-21 | STEM, INC. (STEM) | President, Software Division | Sell | 8,130 | $0 |
Source: SEC Form 4 filings · as of 2026-07-02