Form 4 for STEM STEM, INC.
Accepted 2026-07-21 17:15:08 ET · period of report 2026-07-17 · accession 0002081813-26-000004 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-07-21 17:15 | 2026-07-17 | STEM | Musfeldt Brian | CFO | M - OptEx | $6.26 | +3,375 | 3,375 | New | +$21.1K |
| D | 2026-07-21 17:15 | 2026-07-20 | STEM | Musfeldt Brian | CFO | S - Sale+OE | $6.11 | -996 | 2,379 | -30% | -$6,086 |
| D | 2026-07-21 17:15 | 2026-07-17 | STEM | Musfeldt Brian | CFO | M - OptEx | $0.00 | -3,375 | 3,375 | -50% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock, Par Value $0.0001 Per Share | 2026-07-17 | M | A | 3,375 | $6.26 | 3,375 | D | — | — | |
| 2 | Common | Common Stock, Par Value $0.0001 Per Share | 2026-07-20 | S | D | 996 | $6.11 | 2,379 | D | — | — | (F1) Represents shares of common stock automatically sold to cover the reporting person's tax liability in connection with the settlement of PSUs on July 17, 2026. This "sell to cover" transaction does not represent a discretionary trade by the reporting person. |
| 3 | Derivative | Performance Stock Unit | 2026-07-17 | M | D | 3,375 | $0.00 | 3,375 | D | — · — to — | 3,375 Common Stock, Par Value $0.0001 Per Share | (F2) Each performance stock unit ("PSU") represented a contingent right to receive one share of the Issuer's common stock if the volume-weighted average price of the Issuer's common stock for any consecutive sixty (60) trading-day period equaled or exceeded $17.60 (the "Performance Metric") during a performance period ending on June 30, 2028 (the "Performance Period"). (F3) On July 17, 2025, the Reporting Person was granted 6,750 PSUs, 3,375 of which vested on June 30, 2026 following the Issuer's achievement of the Performance Metric during the Performance Period. (F3) On July 17, 2025, the Reporting Person was granted 6,750 PSUs, 3,375 of which vested on June 30, 2026 following the Issuer's achievement of the Performance Metric during the Performance Period. |