Tappin Matthew
SEC insider (Form 3/4/5 filer). CIK 0001986259. President, Software Products at STEM, INC. (STEM). 32 reported Form 4/5 transactions since Sep 2024; latest on Jul 2, 2026. Located in HOUSTON, TX.
Companies Tappin Matthew has filed insider reports for
- STEM, INC. (STEM): Officer, President, Software Products
Tappin Matthew
CIK: 0001986259
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)12 (37.5%)
Position reduction
Option Exercises (M)10 (31.3%)
Derivative conversions
Awards (A)8 (25.0%)
Compensation grants
Other (G, F, J, C, D, …)2 (6.3%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
STEM
STEM, INC.
Officer
Discretionary Trading P&L
Holdings
Transaction History (32 total)
- Jul 2, 2026STEM
STEM, INC.
SaleDirect996 shares at avg. $7.85$8K - Jun 30, 2026STEM
STEM, INC.
ExerciseDirect2.8K shares at avg. $7.81$21K - Jun 30, 2026STEM
STEM, INC.
ExerciseDirect5K shares at avg. $7.81$39K - Mar 11, 2026STEM
STEM, INC.
SaleDirect402 shares at avg. $10.83$4K - Mar 10, 2026STEM
STEM, INC.
SaleDirect655 shares at avg. $11.12$7K - Mar 7, 2026STEM
STEM, INC.
ExerciseDirect1.5K shares- - Mar 4, 2026STEM
STEM, INC.
SaleDirect185 shares at avg. $10.00$2K - Mar 3, 2026STEM
STEM, INC.
SaleDirect300 shares at avg. $9.67$3K - Mar 1, 2026STEM
STEM, INC.
ExerciseDirect670 shares- - Feb 26, 2026STEM
STEM, INC.
AwardDirectRestricted Stock Unit
25.8K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jul 2, 2026 | STEM STEM, INC. | Sale | 996 | $7.85 | $7,819 | Direct |
| Jun 30, 2026 | STEM STEM, INC. | Exercise | 2,750 | $7.81 | $21,478 | Direct |
| Jun 30, 2026 | STEM STEM, INC. | Exercise | 5,000 | $7.81 | $39,050 | Direct |
| Mar 11, 2026 | STEM STEM, INC. | Sale | 402 | $10.83 | $4,354 | Direct |
| Mar 10, 2026 | STEM STEM, INC. | Sale | 655 | $11.12 | $7,284 | Direct |
| Mar 7, 2026 | STEM STEM, INC. | Exercise | 1,458 | - | $0 | Direct |
| Mar 4, 2026 | STEM STEM, INC. | Sale | 185 | $10.00 | $1,850 | Direct |
| Mar 3, 2026 | STEM STEM, INC. | Sale | 300 | $9.67 | $2,901 | Direct |
| Mar 1, 2026 | STEM STEM, INC. | Exercise | 670 | - | $0 | Direct |
| Feb 26, 2026 | STEM STEM, INC. | Award Restricted Stock Unit | 25,800 | - | - | Direct |
1-10 of 32 transactions