| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| AKR | Director | Apr 18, 2022 | Sale | $21.18 | 1,500 | 31,765 | 33,399 | Apr 18, 2022, 04:10 PM |
| AKR | Director | Mar 15, 2022 | Sale | $21.62 | 1,000 | 21,623 | 34,899 | Mar 15, 2022, 04:34 PM |
| AKR | Director | Feb 15, 2022 | Sale | $19.87 | 2,000 | 39,739 | 35,899 | Feb 16, 2022, 04:21 PM |
| AKR | Director | Jan 19, 2022 | Sale | $21.04 | 3,500 | 73,646 | 37,899 | Jan 20, 2022, 04:13 PM |
| AKR | Director | May 06, 2021 | Option Exercise | $20.52 | 4,873 | 99,994 | 40,551 | May 07, 2021, 04:11 PM |
| AKR | Director | Apr 15, 2021 | Sale | $19.90 | 1,523 | 30,313 | 35,494 | Apr 15, 2021, 04:47 PM |
| AKR | Director | Mar 15, 2021 | Sale | $20.91 | 1,000 | 20,912 | 37,017 | Mar 16, 2021, 04:24 PM |
| AKR | Director | Feb 16, 2021 | Sale | $17.85 | 2,000 | 35,696 | 38,017 | Feb 17, 2021, 12:00 AM |
| AKR | Director | Jan 15, 2021 | Sale | $15.46 | 3,500 | 54,125 | 40,017 | Jan 20, 2021, 04:35 PM |
| AKR | Director | May 07, 2020 | Option Exercise | $11.91 | 8,396 | 99,996 | 42,939 | May 07, 2020, 04:26 PM |
| AKR | Director | Jan 16, 2020 | Sale | $25.61 | 6,926 | 177,348 | 33,931 | Jan 21, 2020, 06:06 PM |
| AKR | Director | Dec 12, 2019 | Sale | $26.02 | 65 | 1,691 | 39,825 | Dec 13, 2019, 04:12 PM |
| AKR | Director | Nov 12, 2019 | Sale | $27.45 | 300 | 8,235 | 39,890 | Nov 14, 2019, 05:37 PM |
| AKR | Director | May 09, 2019 | Option Exercise | $28.15 | 3,552 | 99,989 | 39,314 | May 10, 2019, 04:50 PM |
| AKR | Director | May 01, 2019 | Sale | $28.18 | 200 | 5,636 | 35,762 | May 02, 2019, 05:25 PM |
| AKR | Director | Nov 01, 2018 | Sale | $28.00 | 4,500 | 126,000 | 35,286 | Nov 05, 2018, 04:17 PM |
| AKR | Director | Sep 12, 2018 | Sale | $28.52 | 699 | 19,935 | 39,499 | Sep 13, 2018, 04:33 PM |
| AKR | Director | Aug 17, 2018 | Sale | $28.12 | 2,204 | 61,976 | 40,198 | Aug 21, 2018, 04:34 PM |
| AKR | Director | May 10, 2018 | Option Exercise | $23.59 | 3,391 | 79,994 | 42,402 | May 10, 2018, 04:39 PM |
| AKR | Director | May 10, 2017 | Option Exercise | $30.19 | 2,650 | 80,004 | 36,961 | May 12, 2017, 03:30 PM |
| AKR | Director | Mar 03, 2017 | Sale | $31.69 | 1,500 | 47,533 | 26,099 | Mar 06, 2017, 04:35 PM |
| AKR | Director | May 06, 2016 | Sale | $35.46 | 315 | 11,170 | 9,399 | May 10, 2016, 02:53 PM |
| ZF | Director | May 02, 2014 | Sale | $15.06 | 22 | 331 | 528 | May 02, 2014, 01:20 PM |
| ZF | Director | May 02, 2014 | Sale | $15.06 | 978 | 14,724 | 0 | May 02, 2014, 01:20 PM |
| ZTR | Director | Apr 29, 2014 | Sale | $14.01 | 750 | 10,508 | 667 | Apr 30, 2014, 09:27 AM |
| ZTR | Director | Apr 23, 2014 | Sale | $14.06 | 2,000 | 28,120 | 1,417 | Apr 24, 2014, 02:40 PM |
| ZTR | Director | Apr 14, 2014 | Sale | $13.79 | 1,000 | 13,791 | 3,417 | Apr 24, 2014, 02:40 PM |
| ZF | Director | Apr 21, 2014 | Sale | $15.03 | 2,000 | 30,060 | 978 | Apr 22, 2014, 10:22 AM |
| ZF | Director | Apr 14, 2014 | Sale | $14.69 | 1,000 | 14,691 | 2,978 | Apr 15, 2014, 09:07 AM |
| ZTR | Director | Apr 14, 2014 | Sale | $13.79 | 1,000 | 13,791 | 1,700 | Apr 15, 2014, 09:06 AM |
| AKR | Director | Apr 02, 2014 | Option Exercise | $22.40 | 3,000 | 67,200 | 12,050 | Apr 02, 2014, 02:02 PM |
| ZTR | Director | Aug 12, 2013 | Buy | $13.06 | 500 | 6,530 | 2,700 | Aug 12, 2013, 02:48 PM |
| ZF | Director | Aug 12, 2013 | Buy | $13.38 | 500 | 6,690 | 3,978 | Aug 12, 2013, 02:47 PM |
| ZF | Director | Jul 15, 2013 | Buy | $13.20 | 300 | 3,960 | 3,478 | Jul 15, 2013, 03:00 PM |
| ZTR | Director | Jul 05, 2013 | Buy | $12.85 | 2,200 | 28,270 | 2,200 | Jul 08, 2013, 12:20 PM |
| ZF | Director | Jul 05, 2013 | Buy | $12.90 | 2,200 | 28,380 | 3,178 | Jul 08, 2013, 12:19 PM |
| AKR | Director | May 08, 2013 | Option Exercise | $15.96 | 3,000 | 47,880 | 9,050 | May 10, 2013, 08:46 AM |
| AKR | Director | Sep 13, 2012 | Option Exercise | $14.13 | 2,000 | 28,260 | 8,050 | Sep 14, 2012, 01:02 PM |
| AKR | Director | Sep 13, 2012 | Sale | $25.33 | 2,000 | 50,660 | 6,050 | Sep 14, 2012, 01:02 PM |
| ZTR | Director | Jan 14, 2011 | Option Exercise | $3.34 | 1,267 | 4,232 | 7,377 | Jan 18, 2011, 01:06 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| AKR | Director | Apr 18, 2022 | Sale | 31,765 |
| AKR | Director | Mar 15, 2022 | Sale | 21,623 |
| AKR | Director | Feb 15, 2022 | Sale | 39,739 |
| AKR | Director | Jan 19, 2022 | Sale | 73,646 |
| AKR | Director | May 06, 2021 | Option Exercise | 99,994 |
| AKR | Director | Apr 15, 2021 | Sale | 30,313 |
| AKR | Director | Mar 15, 2021 | Sale | 20,912 |
| AKR | Director | Feb 16, 2021 | Sale | 35,696 |
| AKR | Director | Jan 15, 2021 | Sale | 54,125 |
| AKR | Director | May 07, 2020 | Option Exercise | 99,996 |
| AKR | Director | Jan 16, 2020 | Sale | 177,348 |
| AKR | Director | Dec 12, 2019 | Sale | 1,691 |
| AKR | Director | Nov 12, 2019 | Sale | 8,235 |
| AKR | Director | May 09, 2019 | Option Exercise | 99,989 |
| AKR | Director | May 01, 2019 | Sale | 5,636 |
| AKR | Director | Nov 01, 2018 | Sale | 126,000 |
| AKR | Director | Sep 12, 2018 | Sale | 19,935 |
| AKR | Director | Aug 17, 2018 | Sale | 61,976 |
| AKR | Director | May 10, 2018 | Option Exercise | 79,994 |
| AKR | Director | May 10, 2017 | Option Exercise | 80,004 |
| AKR | Director | Mar 03, 2017 | Sale | 47,533 |
| AKR | Director | May 06, 2016 | Sale | 11,170 |
| ZF | Director | May 02, 2014 | Sale | 331 |
| ZF | Director | May 02, 2014 | Sale | 14,724 |
| ZTR | Director | Apr 29, 2014 | Sale | 10,508 |
| ZTR | Director | Apr 23, 2014 | Sale | 28,120 |
| ZTR | Director | Apr 14, 2014 | Sale | 13,791 |
| ZF | Director | Apr 21, 2014 | Sale | 30,060 |
| ZF | Director | Apr 14, 2014 | Sale | 14,691 |
| ZTR | Director | Apr 14, 2014 | Sale | 13,791 |
| AKR | Director | Apr 02, 2014 | Option Exercise | 67,200 |
| ZTR | Director | Aug 12, 2013 | Buy | 6,530 |
| ZF | Director | Aug 12, 2013 | Buy | 6,690 |
| ZF | Director | Jul 15, 2013 | Buy | 3,960 |
| ZTR | Director | Jul 05, 2013 | Buy | 28,270 |
| ZF | Director | Jul 05, 2013 | Buy | 28,380 |
| AKR | Director | May 08, 2013 | Option Exercise | 47,880 |
| AKR | Director | Sep 13, 2012 | Option Exercise | 28,260 |
| AKR | Director | Sep 13, 2012 | Sale | 50,660 |
| ZTR | Director | Jan 14, 2011 | Option Exercise | 4,232 |