| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | STEM | Common Stock, Par Value $0.0001 Per Share | Options Exercise | $41,222 | +32,978 | +7.3% | $1.25 | 486,280 | 07 Jul 2021 | Direct | |
| transaction | STEM | Common Stock, Par Value $0.0001 Per Share | Tax liability | $41,239 | -1,209 | -0.25% | $34.11 | 485,071 | 07 Jul 2021 | Direct | |
| transaction | STEM | Common Stock, Par Value $0.0001 Per Share | Options Exercise | $34,495 | +27,596 | +5.7% | $1.25 | 512,667 | 07 Jul 2021 | Direct | |
| transaction | STEM | Common Stock, Par Value $0.0001 Per Share | Tax liability | $34,519 | -1,012 | -0.2% | $34.11 | 511,655 | 07 Jul 2021 | Direct | |
| transaction | STEM | Common Stock, Par Value $0.0001 Per Share | Options Exercise | $376,861 | +166,018 | +32% | $2.27 | 677,673 | 07 Jul 2021 | Direct | |
| transaction | STEM | Common Stock, Par Value $0.0001 Per Share | Tax liability | $376,881 | -11,049 | -1.6% | $34.11 | 666,624 | 07 Jul 2021 | Direct | |
| holding | STEM | Common Stock, Par Value $0.0001 Per Share | 89,684 | 07 Jul 2021 | By the David S. Buzby Revocable Trust | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | STEM | Stock Option (Right to Buy) | Options Exercise | $0 | -32,978 | -13% | $0.000000 | 217,330 | 07 Jul 2021 | Common Stock, Par Value $0.0001 Per Share | 32,978 | $1.25 | Direct | |
| transaction | STEM | Stock Option (Right to Buy) | Options Exercise | $0 | -27,596 | -13% | $0.000000 | 189,734 | 07 Jul 2021 | Common Stock, Par Value $0.0001 Per Share | 27,596 | $1.25 | Direct | |
| transaction | STEM | Stock Option (Right to Buy) | Options Exercise | $0 | -166,018 | -88% | $0.000000 | 23,716 | 07 Jul 2021 | Common Stock, Par Value $0.0001 Per Share | 166,018 | $2.27 | Direct | F2, F3 |
| Id | Content |
|---|---|
| F1 | Held by the David S. Buzby Revocable Trust, of which the reporting person is sole trustee. |
| F2 | These options vested 25% on January 1, 2019, and the remaining options vested in equal monthly installments thereafter. |
| F3 | These options will vest in equal monthly installments through January 1, 2022. |