| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| GRIF | Director | Oct 26, 2017 | Sale | $36.15 | 10,000 | 361,460 | 838,914 | Oct 30, 2017, 04:23 PM |
| GRIF | 10% Owner | Apr 20, 2015 | Buy | $31.80 | 8,000 | 254,400 | 965,410 | Apr 22, 2015, 04:34 PM |
| GRIF | 10% Owner | Oct 28, 2010 | Option Exercise | $25.35 | 14,860 | 376,701 | 191,138 | Nov 01, 2010, 06:37 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| GRIF | Director | Oct 26, 2017 | Sale | 361,460 |
| GRIF | 10% Owner | Apr 20, 2015 | Buy | 254,400 |
| GRIF | 10% Owner | Oct 28, 2010 | Option Exercise | 376,701 |