| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| GST | Gastar Exploration Inc. | Cassels John Hamilton | Former Director | Jan 05, 2018 | Option Exercise | $1.05 | 12,049 | 12,651 | 238,950 | Jan 08, 2018, 03:48 PM | |
| GST | Gastar Exploration Inc. | Cassels John Hamilton | Director | Feb 02, 2017 | Option Exercise | $1.66 | 12,914 | 21,437 | 250,999 | Feb 02, 2017, 03:28 PM | |
| GST | Gastar Exploration Inc. | Cassels John Hamilton | Director | Nov 16, 2016 | Option Exercise | $1.05 | 867 | 910 | 203,672 | Nov 17, 2016, 10:00 AM | |
| GST | Gastar Exploration Inc. | Cassels John Hamilton | Director | Feb 03, 2016 | Option Exercise | $1.19 | 13,793 | 16,414 | 204,539 | Feb 04, 2016, 10:59 AM | |
| GST | Gastar Exploration Inc. | Cassels John Hamilton | Director | Mar 15, 2015 | Option Exercise | $2.25 | 900 | 2,025 | 160,375 | Mar 16, 2015, 07:30 PM | |
| GST | Gastar Exploration Inc. | Cassels John Hamilton | Director | Jan 30, 2015 | Option Exercise | $2.40 | 7,149 | 17,158 | 161,275 | Feb 03, 2015, 08:43 PM | |
| GST | Gastar Exploration Inc. | Cassels John Hamilton | Director | Nov 13, 2014 | Option Exercise | $4.02 | 867 | 3,485 | 126,757 | Nov 14, 2014, 06:00 PM | |
| GST | Gastar Exploration Inc. | Cassels John Hamilton | Director | Mar 24, 2014 | Option Exercise | $5.17 | 900 | 4,653 | 127,624 | Mar 24, 2014, 04:25 PM | |
| GSTPRAPRB | Gastar Exploration USA, Inc. | Cassels John Hamilton | Director | Jan 30, 2014 | Option Exercise | $5.80 | 23,241 | 134,798 | 134,524 | Feb 03, 2014, 08:27 PM | |
| GST | GASTAR EXPLORATION LTD | Cassels John Hamilton | Director | Nov 11, 2013 | Option Exercise | $4.43 | 13,000 | 57,590 | 117,283 | Nov 13, 2013, 10:17 AM | |
| GST | GASTAR EXPLORATION LTD | Cassels John Hamilton | Director | Nov 11, 2013 | Option Exercise | $4.43 | 2,935 | 13,002 | 107,218 | Nov 12, 2013, 11:32 AM | |
| GST | GASTAR EXPLORATION LTD | Cassels John Hamilton | Director | Mar 25, 2013 | Option Exercise | $1.32 | 900 | 1,188 | 104,283 | Mar 26, 2013, 04:40 PM | |
| GST | GASTAR EXPLORATION LTD | Cassels John Hamilton | Director | Jan 30, 2013 | Option Exercise | $1.16 | 64,655 | 75,000 | 105,183 | Feb 12, 2013, 03:09 PM | |
| GST | GASTAR EXPLORATION LTD | Cassels John Hamilton | Director | Feb 12, 2013 | Option Exercise | $1.16 | 1,690 | 1,960 | 40,528 | Feb 12, 2013, 03:09 PM | |
| GST | GASTAR EXPLORATION LTD | Cassels John Hamilton | Director | Apr 02, 2012 | Option Exercise | $2.71 | 1,106 | 2,997 | 42,218 | Apr 03, 2012, 11:06 AM |
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