Michael James Carlson
Insider
First SEC filing: July 30, 2025 · Latest: July 30, 2025
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net: $-34,374
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 29, 2026 | STEM | S | 146 | $4.67 | $682 | 26,020 Direct | -0.56% | Disposed | -8.8% (price as of 2026-10-02) |
| Sept. 26, 2026 | STEM | M | 305 | $4.48 | $1,366 | 26,166 Direct | +1.18% | Acquired | -4.9% (price as of 2026-10-02) |
| Sept. 26, 2026 | STEM | M | 305 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| July 2, 2026 | STEM | S | 1,347 | $7.85 | $10,574 | 25,861 Direct | -4.95% | Disposed | -45.7% (price as of 2026-10-02) |
| June 30, 2026 | STEM | M | 5,000 | · | · | 5,000 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| June 30, 2026 | STEM | M | 2,750 | · | · | 2,750 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| June 30, 2026 | STEM | M | 2,750 | $7.81 | $21,478 | 27,208 Direct | +11.24% | Acquired | -45.5% (price as of 2026-10-02) |
| June 30, 2026 | STEM | M | 5,000 | $7.81 | $39,050 | 24,458 Direct | +25.70% | Acquired | -45.5% (price as of 2026-10-02) |
| March 10, 2026 | STEM | S | 2,079 | $11.12 | $23,118 | 19,458 Direct | -9.65% | Disposed | -61.7% (price as of 2026-10-02) |
| March 7, 2026 | STEM | M | 3,541 | · | · | 21,537 Direct | +19.68% | Acquired | (price as of 2026-10-02) |
| March 7, 2026 | STEM | M | 3,541 | · | · | 3,516 Direct | -50.18% | Disposed | (price as of 2026-10-02) |
| Feb. 26, 2026 | STEM | A | 25,800 | · | · | 25,800 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 26, 2026 | STEM | A | 17,200 | · | · | 17,200 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 19, 2026 | STEM | F | 730 | $11.30 | $8,249 | 17,996 Direct | -3.90% | Disposed | -62.3% (price as of 2026-10-02) |
| Feb. 15, 2026 | STEM | M | 1,342 | · | · | 18,726 Direct | +7.72% | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2026 | STEM | M | 1,342 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Nov. 10, 2025 | STEM | F | 6,743 | $18.27 | $123,195 | 17,384 Direct | -27.95% | Disposed | -76.7% (price as of 2026-10-02) |
| Nov. 7, 2025 | STEM | M | 13,750 | · | · | 24,127 Direct | +132.50% | Acquired | (price as of 2026-10-02) |
| Nov. 7, 2025 | STEM | M | 13,750 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| July 28, 2025 | STEM | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| July 28, 2025 | STEM | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 30, 2025 | STEM | A | 5,500 | · | · | 5,500 Direct | · | Acquired | (price as of 2026-10-02) |
| June 30, 2025 | STEM | A | 5,500 | · | · | 5,500 Direct | · | Acquired | (price as of 2026-10-02) |
| June 30, 2025 | STEM | A | 11,000 | · | · | 11,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 12, 2025 | STEM | S | 27,739 | $0.40 | $11,096 | 204,140 Direct | -11.96% | Disposed | -46.8% (price as of 2026-10-02) |
| March 11, 2025 | STEM | M | 70,834 | · | · | 455,686 Direct | -13.45% | Disposed | (price as of 2026-10-02) |
| March 11, 2025 | STEM | M | 70,834 | · | · | 231,879 Direct | +43.98% | Acquired | (price as of 2026-10-02) |
| Feb. 20, 2025 | STEM | M | 26,053 | · | · | 526,520 Direct | -4.71% | Disposed | (price as of 2026-10-02) |
| Feb. 20, 2025 | STEM | M | 26,053 | · | · | 161,045 Direct | +19.30% | Acquired | (price as of 2026-10-02) |
| Nov. 1, 2024 | STEM | A | 100,000 | · | · | 552,573 Direct | +22.10% | Acquired | (price as of 2026-10-02) |
| Nov. 1, 2024 | STEM | A | 175,000 | · | · | 452,573 Direct | +63.05% | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2024 | STEM | M | 6,089 | · | · | 134,992 Direct | +4.72% | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2024 | STEM | M | 6,089 | · | · | 277,573 Direct | -2.15% | Disposed | (price as of 2026-10-02) |
| May 28, 2024 | STEM | A | 212,500 | · | · | 283,662 Direct | +298.61% | Acquired | (price as of 2026-10-02) |
| March 15, 2024 | STEM | P | 44,882 | $1.75 | $78,544 | 128,903 Direct | +53.42% | Acquired | -87.8% (price as of 2026-10-02) |
| March 14, 2024 | STEM | P | 10,118 | $1.75 | $17,706 | 84,021 Direct | +13.69% | Acquired | -87.8% (price as of 2026-10-02) |
| March 8, 2024 | STEM | S 10b5-1 | 35,269 | $2.19 | $77,239 | 73,903 Direct | -32.31% | Disposed | -90.3% (price as of 2026-10-02) |
| March 1, 2024 | STEM | A | 88,805 | · | · | 109,172 Direct | +436.02% | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2024 | STEM | S | 9,952 | $3.17 | $31,548 | 20,367 Direct | -32.82% | Disposed | -93.3% (price as of 2026-10-02) |
| Feb. 15, 2024 | STEM | M | 26,052 | · | · | 30,319 Direct | +610.55% | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2024 | STEM | M | 26,052 | · | · | 71,162 Direct | -26.80% | Disposed | (price as of 2026-10-02) |
| Feb. 15, 2024 | STEM | A | 109,344 | · | · | 109,344 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 27, 2023 | STEM | S | 1,822 | $4.18 | $7,616 | 4,267 Direct | -29.92% | Disposed | -94.9% (price as of 2026-10-02) |
| Sept. 26, 2023 | STEM | M | 6,089 | · | · | 6,089 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2023 | STEM | M | 6,089 | · | · | 97,214 Direct | -5.89% | Disposed | (price as of 2026-10-02) |
| Feb. 15, 2023 | STEM | A | 78,947 | · | · | 103,303 Direct | +324.14% | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2023 | STEM | A | 101,986 | · | · | 101,986 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2022 | STEM | A | 24,356 | · | · | 24,356 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2022 | STEM | A | 33,328 | · | · | 33,328 Direct | · | Acquired | (price as of 2026-10-02) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Sept. 26, 2026 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | · | · | 305 | Disposed |
| June 30, 2026 | STEM | Performance Stock Unit | Common Stock, Par Value $0.0001 Per Share | · | · | 5,000 | Disposed |
| June 30, 2026 | STEM | Performance Stock Unit | Common Stock, Par Value $0.0001 Per Share | · | · | 2,750 | Disposed |
| March 7, 2026 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | · | · | 3,541 | Disposed |
| Feb. 26, 2026 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | · | · | 25,800 | Acquired |
| Feb. 26, 2026 | STEM | Performance Stock Unit | Common Stock, Par Value $0.0001 Per Share | · | · | 17,200 | Acquired |
| Feb. 15, 2026 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | · | · | 1,342 | Disposed |
| Nov. 7, 2025 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | · | · | 13,750 | Disposed |
| July 28, 2025 | STEM | Performance Stock Unit | Common Stock, Par Value 0.0001 Per Share | · | · | 10,000 | Acquired |
| July 28, 2025 | STEM | Restricted Stock Unit | Common Stock, Par Value 0.0001 Per Share | · | · | 10,000 | Acquired |
| June 30, 2025 | STEM | Stock Options | Common Stock, Par Value 0.0001 Per Share | $6.23 | June 30, 2035 | 5,500 | Acquired |
| June 30, 2025 | STEM | Performance Stock Unit | Common Stock, Par Value 0.0001 Per Share | · | · | 5,500 | Acquired |
| June 30, 2025 | STEM | Restricted Stock Unit | Common Stock, Par Value 0.0001 Per Share | · | · | 11,000 | Acquired |
| March 11, 2025 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | $0.00 | · | 70,834 | Disposed |
| Feb. 20, 2025 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | $0.00 | · | 26,053 | Disposed |
| Nov. 1, 2024 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | $0.00 | · | 100,000 | Acquired |
| Nov. 1, 2024 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | $0.00 | · | 175,000 | Acquired |
| Sept. 26, 2024 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | $0.00 | · | 6,089 | Disposed |
| May 28, 2024 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | $0.00 | · | 212,500 | Acquired |
| Feb. 15, 2024 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | $0.00 | · | 26,052 | Disposed |
| Feb. 15, 2024 | STEM | Stock Option (Right to Buy) | Common Stock, Par Value $0.0001 Per Share | $3.37 | Feb. 15, 2034 | 109,344 | Acquired |
| Sept. 26, 2023 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | · | · | 6,089 | Disposed |
| Feb. 15, 2023 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | · | · | 78,947 | Acquired |
| Feb. 15, 2023 | STEM | Stock Option (Right to Buy) | Common Stock, Par Value $0.0001 Per Share | $10.25 | Feb. 15, 2033 | 101,986 | Acquired |
| Sept. 26, 2022 | STEM | Restricted Stock Unit | Common Stock, Par Value $0.0001 Per Share | · | · | 24,356 | Acquired |
| Sept. 26, 2022 | STEM | Stock Option (Right to Buy) | Common Stock, Par Value $0.0001 Per Share | $12.83 | Sept. 26, 2033 | 33,328 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $430,373 | $379,923 | · | · | · | · | · | $1,365,356 |
| 2024 | $418,269 | · | · | · | · | · | · | $1,097,377 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.