Insider Trading activities of Gastar Exploration Inc. insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Gastar Exploration Inc. since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Gastar Exploration Inc. since year 2005. Table 2 shows the detailed insider transactions of Gastar Exploration Inc. since 2005. The reporting company's ticker symbol is GST. The reporting company's CIK number is 1431372.
The total value of stock buying since 2005 is $42,266,347.
The total value of stock sales since 2005 is $2,397,652.
The total value of stock option exercises since 2005 is $2,922,850.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Gastar Exploration Inc. (GST).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2018-03 25,000 $19,075 0 $0 0 $0
2017-06 0 $0 0 $0 2,044,051 $0
2017-05 27,303,783 $39,599,887 0 $0 0 $0
2016-05 0 $0 1,500,000 $1,357,500 0 $0
2016-02 0 $0 149,519 $114,883 0 $0
2016-01 1,811,770 $1,999,882 0 $0 503,934 $0
2015-04 0 $0 60,000 $159,000 0 $0
2015-03 0 $0 20,000 $52,600 0 $0
2015-01 0 $0 34,225 $678,067 503,940 $0
2014-12 17,800 $153,371 14,000 $35,602 0 $0
2014-11 36,900 $121,735 0 $0 0 $0
2014-09 27,500 $219,567 0 $0 0 $0
2014-08 800 $20,348 0 $0 0 $0
2014-06 2,000 $56,760 0 $0 0 $0
2014-05 235 $6,431 0 $0 0 $0
2014-01 2,000 $51,860 0 $0 503,940 $2,922,850
2013-01 370 $7,020 0 $0 0 $0
2012-11 230 $3,504 0 $0 0 $0
2012-10 183 $3,385 0 $0 0 $0
2012-09 174 $3,522 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Gastar Exploration Inc. insiders (GST)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2018-03-22 Holditch Stephen A (Director) Buy 25,000 .76 19,075
2017-06-30 Roberts Stephen Phillip (Senior VP & COO) Option Ex 1,500,000 .00 0
2017-06-30 Porter J Russell (Chief Executive Officer & Pres) Option Ex 372,741 .00 0
2017-06-30 Gerlich Michael A (Senior VP & CFO) Option Ex 171,310 .00 0
2017-05-23 Ares Partners Holdco Llc (Director) Buy 514,227 1.23 631,984
2017-05-22 Ares Partners Holdco Llc (Director) Buy 514,227 1.20 615,015
2017-05-19 Ares Partners Holdco Llc (Director) Buy 409,404 1.16 476,546
2017-05-18 Ares Partners Holdco Llc (Director) Buy 409,404 1.11 455,257
2017-05-02 Ares Partners Holdco Llc (Director) Buy 25,456,521 1.47 37,421,085
2016-05-12 Kleinheinz John B Sale 1,500,000 .91 1,357,500
2016-02-24 Kleinheinz John B (Other) Sale 99,519 .66 65,583
2016-02-22 Kleinheinz John B (Other) Sale 50,000 .99 49,300
2016-01-30 Mccown Michael (Senior VP & COO) Option Ex 89,080 .00 0
2016-01-30 Porter J Russell (Chief Executive Officer & Pres) Option Ex 254,654 .00 0
2016-01-30 Gerlich Michael A (Senior VP & CFO) Option Ex 160,200 .00 0
2016-01-14 Kleinheinz John B (Other) Buy 500,000 1.21 603,000
2016-01-13 Kleinheinz John B (Other) Buy 658,550 1.11 730,331
2016-01-12 Kleinheinz John B (Other) Buy 241,450 .99 238,311
2016-01-11 Kleinheinz John B (Other) Buy 411,770 1.04 428,240
2015-04-01 Gerlich Michael A (Senior VP & CFO) Sale 60,000 2.65 159,000
2015-03-23 Selser John Michael Sr Sale 10,000 2.66 26,600
2015-03-20 Selser John Michael Sr Sale 10,000 2.60 26,000
2015-01-30 Mccown Michael (Senior VP & COO) Option Ex 89,082 .00 0
2015-01-30 Porter J Russell (Chief Executive Officer & Pres) Option Ex 254,656 .00 0
2015-01-30 Gerlich Michael A (Senior VP & CFO) Option Ex 160,202 .00 0
2015-01-20 Selser John Michael Sr Sale 6,032 18.36 110,747
2015-01-20 Porter J Russell (Chief Executive Officer & Pres) Sale 100 19.01 1,901
2015-01-16 Selser John Michael Sr Sale 15,500 20.80 322,400
2015-01-16 Porter J Russell (Chief Executive Officer & Pres) Sale 12,593 19.30 243,019
2014-12-29 Schuyler Jerry R (Director) Sale 14,000 2.54 35,602
2014-12-12 Gerlich Michael A (Senior VP & CFO) Buy 250 19.58 4,895
2014-12-05 Selser John Michael Sr Buy 1,000 21.75 21,750
2014-12-02 Mccown Michael (Senior VP & COO) Buy 4,800 12.80 61,464
2014-12-01 Holditch Stephen A Buy 10,000 2.86 28,600
2014-12-01 Gerlich Michael A (Senior VP & CFO) Buy 1,750 20.95 36,662
2014-11-28 Porter J Russell (Chief Executive Officer & Pres) Buy 30,900 3.13 96,655
2014-11-12 Holditch Stephen A (Director) Buy 6,000 4.18 25,080
2014-09-24 Gerlich Michael A (Chief Financial Officer & VP) Buy 5,000 6.25 31,250
2014-09-19 Selser John Michael Sr (Director) Buy 1,000 25.21 25,208
2014-09-11 Holditch Stephen A (Director) Buy 7,500 7.30 54,735
2014-09-11 Schuyler Jerry R (Director) Buy 14,000 7.74 108,374
2014-08-15 Gerlich Michael A (Chief Financial Officer & VP) Buy 400 25.40 10,160
2014-08-14 Gerlich Michael A (Chief Financial Officer & VP) Buy 400 25.47 10,188
2014-06-18 Selser John Michael Sr (Director) Buy 2,000 28.38 56,760
2014-05-27 Mccown Michael (Senior VP & COO) Buy 235 27.37 6,431
2014-01-30 Mccown Michael (Senior VP & COO) Option Ex 89,082 5.80 516,675
2014-01-30 Porter J Russell (Chief Executive Officer & Pres) Option Ex 254,656 5.80 1,477,004
2014-01-30 Gerlich Michael A (Chief Financial Officer & VP) Option Ex 160,202 5.80 929,171
2014-01-14 Porter J Russell (President) Buy 2,000 25.93 51,860
2013-01-16 Porter J Russell (President) Buy 370 18.97 7,020
2012-11-13 Porter J Russell (President) Buy 230 15.23 3,504
2012-10-04 Porter J Russell (President) Buy 183 18.50 3,385
2012-09-18 Porter J Russell (President) Buy 174 20.25 3,522

Insider trading activities including stock purchases, stock sales, and option exercises of GST listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Gastar Exploration Inc. (symbol GST, CIK number 1431372) see the Securities and Exchange Commission (SEC) website.