| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| GRIF | Director | May 07, 2019 | Option Exercise | $28.18 | 1,419 | 39,987 | 26,815 | May 07, 2019, 01:07 PM |
| GRIF | Director | May 03, 2018 | Option Exercise | $34.00 | 1,176 | 39,984 | 25,396 | May 04, 2018, 11:58 AM |
| GRIF | Director | May 08, 2015 | Option Exercise | $25.52 | 1,567 | 39,998 | 29,220 | May 11, 2015, 11:23 AM |
| GRIF | Director | May 21, 2014 | Option Exercise | $24.94 | 1,604 | 40,004 | 27,653 | May 22, 2014, 01:48 PM |
| GRIF | Director | May 03, 2013 | Option Exercise | $11.81 | 3,388 | 39,995 | 26,049 | May 07, 2013, 02:23 PM |
| GRIF | Director | Apr 13, 2012 | Option Exercise | $15.03 | 2,661 | 39,995 | 22,661 | Apr 16, 2012, 04:17 PM |
| GRIF | Director | Apr 26, 2011 | Option Exercise | $17.75 | 5,000 | 88,725 | 20,000 | Apr 27, 2011, 01:42 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| GRIF | Director | May 07, 2019 | Option Exercise | 39,987 |
| GRIF | Director | May 03, 2018 | Option Exercise | 39,984 |
| GRIF | Director | May 08, 2015 | Option Exercise | 39,998 |
| GRIF | Director | May 21, 2014 | Option Exercise | 40,004 |
| GRIF | Director | May 03, 2013 | Option Exercise | 39,995 |
| GRIF | Director | Apr 13, 2012 | Option Exercise | 39,995 |
| GRIF | Director | Apr 26, 2011 | Option Exercise | 88,725 |