Tappin Matthew
SEC CIK 1986259 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| STEM | STEM, INC. | Pres, Software Products | 9,577 | — | $436.3K | 33 | 2023-12-31 | 2026-07-02 |
Most active insiders at STEM, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Tappin Matthew | Pres, Software Products | — | $198.0K |
| 2 | Narayanan Arun | CEO | — | $72.9K |
| 3 | Shukla Rahul | CAO | — | $59.6K |
| 4 | Carlson Michael James | Pres, Managed Services | — | $33.7K |
| 5 | Laureles Saul R. | CLO | — | $18.6K |
| 6 | Musfeldt Brian | CFO | — | $6,086 |
| 7 | Guruswamy Vasudevan | Dir | — | — |
| 8 | Tammineedi Anil | Dir | — | — |
| 9 | Daley Adam | Dir | — | — |
| 10 | Shivram Krishna | Dir | — | — |
Transactions 33
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-07-02 18:57 | 2026-06-30 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | M - OptEx | $7.81 | +7,750 | 10.6K | +275% | +$60.5K |
| D | 2026-07-02 18:57 | 2026-07-02 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | S - Sale+OE | $7.85 | -996 | 9,577 | -9% | -$7,819 |
| 2026-03-13 | 2026-03-11 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | S - Sale | $10.83 | -402 | 2,823 | -12% | -$4,354 | |
| D | 2026-03-10 | 2026-03-07 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | M - OptEx | — | +1,458 | 3,880 | +60% | — |
| D | 2026-03-10 | 2026-03-10 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | S - Sale+OE | $11.12 | -655 | 3,225 | -17% | -$7,284 |
| M | 2026-03-04 | 2026-03-03+ | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | S - Sale | $9.80 | -485 | 2,422 | -17% | -$4,751 |
| D | 2026-03-02 | 2026-03-01 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | M - OptEx | — | +670 | 2,907 | +30% | — |
| 2026-02-23 | 2026-02-20 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | S - Sale | $11.40 | -366 | 2,237 | -14% | -$4,172 | |
| 2026-02-19 | 2026-02-19 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | F - Tax | $11.30 | -522 | 2,603 | -17% | -$5,899 | |
| D | 2026-02-18 | 2026-02-15 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | M - OptEx | — | +1,253 | 3,125 | +67% | — |
| 2025-11-24 | 2025-11-11 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | S - Sale | $17.70 | -9,584 | 1,872 | -84% | -$169.6K | |
| D | 2025-11-12 | 2025-11-07 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | M - OptEx | — | +15.0K | 16.9K | +801% | — |
| D | 2025-11-12 | 2025-11-10 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Products | F - Tax | $18.27 | -5,416 | 11.5K | -32% | -$99.0K |
| DMT | 2025-06-18 | 2025-05-30+ | STEM | STEM, INC. | Tappin Matthew | Pres, Software Division | S - Sale+OE | $0.45 | -22.0K | 37.5K | -37% | -$9,894 |
| DT | 2025-06-18 | 2025-05-29 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Division | M - OptEx | $0.00 | +2,775 | 59.4K | +5% | $0 |
| DM | 2025-03-17 | 2025-03-06+ | STEM | STEM, INC. | Tappin Matthew | Pres, Software Division | M - OptEx | $0.00 | +42.6K | 46.2K | +1,165% | $0 |
| DM | 2025-03-17 | 2025-03-07+ | STEM | STEM, INC. | Tappin Matthew | Pres, Software Division | S - Sale+OE | $0.406 | -18.7K | 56.7K | -25% | -$7,599 |
| D | 2025-02-21 | 2025-02-20 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Division | S - Sale+OE | $0.63 | -8,130 | 32.8K | -20% | -$5,122 |
| D | 2025-02-21 | 2025-02-19 | STEM | STEM, INC. | Tappin Matthew | Pres, Software Division | M - OptEx | $0.00 | +24.3K | 41.0K | +146% | $0 |
| 2024-05-30 | 2024-05-28 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | S - Sale | $1.32 | -1,388 | 16.6K | -8% | -$1,832 | |
| D | 2024-05-28 | 2024-05-24 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | M - OptEx | $0.00 | +2,775 | 18.0K | +18% | $0 |
| 2024-03-20 | 2024-03-19 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | S - Sale | $1.82 | -26.6K | 15.2K | -64% | -$48.5K | |
| 2024-03-12 | 2024-03-08 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | S - Sale | $2.19 | -24.9K | 41.9K | -37% | -$54.5K | |
| 2024-03-07 | 2024-03-05 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | S - Sale | $2.41 | -3,837 | 66.8K | -5% | -$9,247 | |
| D | 2024-03-05 | 2024-03-04 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | S - Sale+OE | $2.48 | -5,724 | 70.6K | -7% | -$14.2K |
| D | 2024-03-05 | 2024-03-01 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | M - OptEx | $0.00 | +13.4K | 24.8K | +117% | $0 |
| D | 2024-03-05 | 2024-03-01 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | A - Grant | $0.00 | +51.5K | 76.3K | +208% | $0 |
| 2024-02-21 | 2024-02-20 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | S - Sale | $3.05 | -6,857 | 11.4K | -38% | -$20.9K | |
| D | 2024-02-20 | 2024-02-16 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | S - Sale+OE | $3.17 | -10.6K | 18.3K | -37% | -$33.6K |
| D | 2024-02-20 | 2024-02-15 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | M - OptEx | $0.00 | +24.3K | 28.9K | +534% | $0 |
| 2024-02-16 | 2024-02-14 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | S - Sale | $3.15 | -4,556 | 4,555 | -50% | -$14.4K | |
| D | 2024-01-03 | 2023-12-31 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | M - OptEx | $0.00 | +14.3K | 14.3K | New | $0 |
| D | 2024-01-03 | 2024-01-03 | STEM | STEM, INC. | Tappin Matthew | Pres, Asset Management | S - Sale+OE | $3.56 | -5,207 | 9,111 | -36% | -$18.5K |
Purchase Sale Sale after option exercise All abbreviations