CUSIP: 391164100 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2018 | 15,900 | $505 | — | — |
| Q4 2017 | 15,900 | $513 | — | — |
| Q3 2017 | 15,900 | $482 | — | — |
| Q2 2017 | 89,300 | $2,615 | — | — |
| Q1 2017 | 121,200 | $3,541 | — | — |
| Q4 2016 | 262,400 | $7,177 | — | — |
| Q3 2016 | 17,800 | $486 | — | — |