| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SILK | Common Stock | Options Exercise | $739 | +121 | +0.17% | $6.11 | 70,376 | 01 Nov 2021 | Direct | F1 |
| transaction | SILK | Common Stock | Sale | $7,376 | -121 | -0.17% | $60.96 | 70,255 | 01 Nov 2021 | Direct | F1, F2 |
| transaction | SILK | Common Stock | Options Exercise | $66,860 | +3,343 | +4.8% | $20.00 | 73,598 | 01 Nov 2021 | Direct | F1 |
| transaction | SILK | Common Stock | Sale | $203,789 | -3,343 | -4.5% | $60.96 | 70,255 | 01 Nov 2021 | Direct | F1, F2 |
| transaction | SILK | Common Stock | Options Exercise | $30,559 | +988 | +1.4% | $30.93 | 71,243 | 01 Nov 2021 | Direct | F1 |
| transaction | SILK | Common Stock | Sale | $60,228 | -988 | -1.4% | $60.96 | 70,255 | 01 Nov 2021 | Direct | F1, F2 |
| transaction | SILK | Common Stock | Options Exercise | $1,518 | +321 | +0.46% | $4.73 | 70,576 | 01 Nov 2021 | Direct | F1 |
| transaction | SILK | Common Stock | Sale | $19,567 | -321 | -0.45% | $60.96 | 70,255 | 01 Nov 2021 | Direct | F1, F2 |
| transaction | SILK | Common Stock | Options Exercise | $1,666 | +32 | +0.05% | $52.07 | 70,287 | 01 Nov 2021 | Direct | F1 |
| transaction | SILK | Common Stock | Sale | $1,951 | -32 | -0.05% | $60.96 | 70,255 | 01 Nov 2021 | Direct | F1, F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SILK | Option (right to buy) | Options Exercise | $0 | -121 | -4.4% | $0.000000 | 2,647 | 01 Nov 2021 | Common Stock | 121 | $6.11 | Direct | F1, F3 |
| transaction | SILK | Option (right to buy) | Options Exercise | $0 | -3,343 | -9% | $0.000000 | 33,694 | 01 Nov 2021 | Common Stock | 3,343 | $20.00 | Direct | F1, F4 |
| transaction | SILK | Option (right to buy) | Options Exercise | $0 | -988 | -3.1% | $0.000000 | 31,187 | 01 Nov 2021 | Common Stock | 988 | $30.93 | Direct | F1, F5 |
| transaction | SILK | Option (right to buy) | Options Exercise | $0 | -321 | -1.2% | $0.000000 | 27,084 | 01 Nov 2021 | Common Stock | 321 | $4.73 | Direct | F1, F6 |
| transaction | SILK | Option (right to buy) | Options Exercise | $0 | -32 | -0.52% | $0.000000 | 6,068 | 01 Nov 2021 | Common Stock | 32 | $52.07 | Direct | F1, F7 |
| Id | Content |
|---|---|
| F1 | The option exercise and sale reported on this Form 4 were effected pursuant to Rule 10b5-1 Trading Plan adopted by the reporting person on September 11, 2020. |
| F2 | This transaction was executed in multiple trades at price ranging from $60.74 to $61.31. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. |
| F3 | One-fourth of the shares subject to the option shall vest on August 1, 2019 and one forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date |
| F4 | One forty-eighth of the shares subject to the option shall vest on May 3, 2019 and each month thereafter, subject to the Reporting Person continuing as a service provider through each such date. |
| F5 | One forty-eighth of the shares subject to the option shall vest on April 1, 2020 and each month thereafter, subject to the Reporting Person continuing as a service provider through each such date. |
| F6 | All of the shares subject to this option are fully vested and exercisable as of the date hereof. |
| F7 | One forty-eighth of the shares subject to the option shall vest on August 1, 2020 and each month thereafter, subject to the Reporting Person continuing as a service provider through each such date. |