| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| GNRC | Chief Operating Officer | Apr 22, 2013 | Sale | $32.83 | 20,000 | 656,600 | 531,287 | Apr 22, 2013, 05:31 PM |
| GNRC | Chief Operating Officer | Apr 10, 2013 | Sale | $35.39 | 30,000 | 1,061,700 | 551,287 | Apr 11, 2013, 12:11 PM |
| GNRC | Chief Operating Officer | Apr 05, 2013 | Option Exercise | $33.90 | 4,038 | 136,888 | 585,749 | Apr 09, 2013, 04:33 PM |
| GNRC | Chief Operating Officer | Apr 05, 2013 | Option Exercise | $7.00 | 8,500 | 59,500 | 589,787 | Apr 09, 2013, 04:33 PM |
| GNRC | Chief Operating Officer | Apr 05, 2013 | Sale | $33.56 | 20,000 | 671,200 | 581,287 | Apr 09, 2013, 04:33 PM |
| GNRC | Chief Operating Officer | Apr 08, 2013 | Sale | $34.53 | 4,462 | 154,073 | 581,287 | Apr 09, 2013, 04:33 PM |
| GNRC | Chief Operating Officer | Mar 20, 2013 | Sale | $34.63 | 20,000 | 692,600 | 601,287 | Mar 20, 2013, 11:17 AM |
| GNRC | Chief Operating Officer | Mar 11, 2013 | Sale | $34.10 | 30,000 | 1,023,000 | 621,287 | Mar 12, 2013, 06:01 PM |
| GNRC | Chief Operating Officer | Mar 05, 2013 | Option Exercise | $34.78 | 4,008 | 139,398 | 655,779 | Mar 06, 2013, 06:01 PM |
| GNRC | Chief Operating Officer | Mar 05, 2013 | Option Exercise | $7.00 | 8,500 | 59,500 | 659,787 | Mar 06, 2013, 06:01 PM |
| GNRC | Chief Operating Officer | Mar 05, 2013 | Sale | $34.70 | 20,000 | 694,000 | 651,287 | Mar 06, 2013, 06:01 PM |
| GNRC | Chief Operating Officer | Mar 06, 2013 | Sale | $34.92 | 4,492 | 156,861 | 651,287 | Mar 06, 2013, 06:01 PM |
| GNRC | Chief Operating Officer | Feb 20, 2013 | Sale | $36.90 | 20,000 | 738,000 | 671,287 | Feb 21, 2013, 12:46 PM |
| GNRC | Chief Operating Officer | Feb 11, 2013 | Sale | $39.57 | 30,000 | 1,187,100 | 691,287 | Feb 11, 2013, 05:15 PM |
| GNRC | Chief Operating Officer | Feb 05, 2013 | Option Exercise | $38.09 | 3,910 | 148,932 | 725,877 | Feb 06, 2013, 02:31 PM |
| GNRC | Chief Operating Officer | Feb 05, 2013 | Option Exercise | $7.00 | 8,500 | 59,500 | 729,787 | Feb 06, 2013, 02:31 PM |
| GNRC | Chief Operating Officer | Feb 05, 2013 | Sale | $37.73 | 20,000 | 754,600 | 721,287 | Feb 06, 2013, 02:31 PM |
| GNRC | Chief Operating Officer | Feb 06, 2013 | Sale | $38.39 | 4,590 | 176,210 | 721,287 | Feb 06, 2013, 02:31 PM |
| GNRC | Chief Operating Officer | Jan 22, 2013 | Sale | $36.30 | 20,000 | 726,000 | 741,287 | Jan 22, 2013, 02:16 PM |
| GNRC | Chief Operating Officer | Jan 10, 2013 | Sale | $34.95 | 30,000 | 1,048,500 | 761,287 | Jan 10, 2013, 02:47 PM |
| GNRC | Chief Operating Officer | Jan 07, 2013 | Option Exercise | $34.40 | 4,105 | 141,212 | 795,682 | Jan 08, 2013, 03:52 PM |
| GNRC | Chief Operating Officer | Jan 07, 2013 | Option Exercise | $7.00 | 8,500 | 59,500 | 799,787 | Jan 08, 2013, 03:52 PM |
| GNRC | Chief Operating Officer | Jan 07, 2013 | Sale | $34.15 | 20,000 | 683,000 | 791,287 | Jan 08, 2013, 03:52 PM |
| GNRC | Chief Operating Officer | Jan 08, 2013 | Sale | $34.41 | 4,395 | 151,232 | 791,287 | Jan 08, 2013, 03:52 PM |
| GNRC | Chief Operating Officer | Dec 20, 2012 | Sale | $34.18 | 20,000 | 683,600 | 811,287 | Dec 21, 2012, 09:51 AM |
| GNRC | Chief Operating Officer | Dec 10, 2012 | Sale | $32.79 | 30,000 | 983,700 | 831,287 | Dec 11, 2012, 03:20 PM |
| GNRC | Chief Operating Officer | Dec 05, 2012 | Option Exercise | $32.60 | 4,024 | 131,182 | 865,763 | Dec 06, 2012, 03:36 PM |
| GNRC | Chief Operating Officer | Dec 05, 2012 | Option Exercise | $7.00 | 8,500 | 59,500 | 869,787 | Dec 06, 2012, 03:36 PM |
| GNRC | Chief Operating Officer | Dec 06, 2012 | Sale | $32.33 | 4,476 | 144,709 | 861,287 | Dec 06, 2012, 03:36 PM |
| GNRC | Chief Operating Officer | Dec 05, 2012 | Sale | $32.75 | 20,000 | 655,000 | 861,287 | Dec 06, 2012, 03:36 PM |
| GNRC | Chief Operating Officer | Nov 20, 2012 | Sale | $35.02 | 20,000 | 700,400 | 881,287 | Nov 20, 2012, 02:42 PM |
| GNRC | Chief Operating Officer | Nov 12, 2012 | Sale | $35.02 | 30,000 | 1,050,600 | 901,287 | Nov 13, 2012, 04:37 PM |
| GNRC | Chief Operating Officer | Nov 05, 2012 | Option Exercise | $37.05 | 3,877 | 143,643 | 935,910 | Nov 07, 2012, 06:47 PM |
| GNRC | Chief Operating Officer | Nov 05, 2012 | Option Exercise | $7.00 | 8,500 | 59,500 | 939,787 | Nov 07, 2012, 06:47 PM |
| GNRC | Chief Operating Officer | Nov 06, 2012 | Sale | $37.08 | 4,623 | 171,421 | 931,287 | Nov 07, 2012, 06:47 PM |
| GNRC | Chief Operating Officer | Nov 05, 2012 | Sale | $35.34 | 20,000 | 706,800 | 931,287 | Nov 07, 2012, 06:47 PM |
| GNRC | Chief Operating Officer | Oct 22, 2012 | Sale | $25.67 | 20,000 | 513,400 | 951,287 | Oct 24, 2012, 07:21 PM |
| GNRC | Chief Operating Officer | Oct 10, 2012 | Sale | $25.15 | 30,000 | 754,500 | 1,105,483 | Oct 10, 2012, 05:54 PM |
| GNRC | Chief Operating Officer | Oct 05, 2012 | Option Exercise | $25.82 | 4,345 | 112,188 | 1,139,638 | Oct 09, 2012, 09:43 AM |
| GNRC | Chief Operating Officer | Oct 05, 2012 | Option Exercise | $7.00 | 8,500 | 59,500 | 1,143,983 | Oct 09, 2012, 09:43 AM |
| GNRC | Chief Operating Officer | Oct 08, 2012 | Sale | $25.42 | 4,155 | 105,620 | 1,135,483 | Oct 09, 2012, 09:43 AM |
| GNRC | Chief Operating Officer | Oct 05, 2012 | Sale | $26.00 | 20,000 | 520,000 | 1,135,483 | Oct 09, 2012, 09:43 AM |
| GNRC | Chief Operating Officer | Sep 20, 2012 | Sale | $23.51 | 20,000 | 470,200 | 1,155,483 | Sep 20, 2012, 05:50 PM |
| GNRC | Chief Operating Officer | Sep 10, 2012 | Sale | $21.52 | 30,000 | 645,600 | 1,175,483 | Sep 12, 2012, 11:20 AM |
| GNRC | Chief Operating Officer | Sep 05, 2012 | Option Exercise | $20.69 | 4,728 | 97,822 | 1,209,255 | Sep 07, 2012, 10:58 AM |
| GNRC | Chief Operating Officer | Sep 05, 2012 | Option Exercise | $7.00 | 8,500 | 59,500 | 1,213,983 | Sep 07, 2012, 10:58 AM |
| GNRC | Chief Operating Officer | Sep 06, 2012 | Sale | $20.93 | 3,772 | 78,948 | 1,205,483 | Sep 07, 2012, 10:58 AM |
| GNRC | Chief Operating Officer | Sep 05, 2012 | Sale | $20.65 | 20,000 | 413,000 | 1,205,483 | Sep 07, 2012, 10:58 AM |
| GNRC | Chief Operating Officer | Aug 20, 2012 | Sale | $21.72 | 20,000 | 434,400 | 1,225,483 | Aug 22, 2012, 10:51 AM |
| GNRC | Chief Operating Officer | Aug 10, 2012 | Sale | $21.94 | 30,000 | 658,200 | 1,245,483 | Aug 13, 2012, 04:56 PM |
| GNRC | Chief Operating Officer | Aug 06, 2012 | Option Exercise | $22.53 | 4,571 | 102,985 | 1,279,412 | Aug 08, 2012, 09:59 AM |
| GNRC | Chief Operating Officer | Aug 06, 2012 | Option Exercise | $7.00 | 8,500 | 59,500 | 1,283,983 | Aug 08, 2012, 09:59 AM |
| GNRC | Chief Operating Officer | Aug 06, 2012 | Sale | $22.58 | 20,000 | 451,600 | 1,275,483 | Aug 08, 2012, 09:59 AM |
| GNRC | Chief Operating Officer | Aug 07, 2012 | Sale | $22.49 | 3,929 | 88,363 | 1,275,483 | Aug 08, 2012, 09:59 AM |
| GNRC | Chief Operating Officer | Jul 20, 2012 | Sale | $22.41 | 21,573 | 483,451 | 1,295,483 | Jul 20, 2012, 05:58 PM |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Option Exercise | $21.75 | 4,634 | 100,790 | 1,319,349 | Jul 20, 2012, 05:54 PM |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Option Exercise | $7.00 | 8,500 | 59,500 | 1,323,983 | Jul 20, 2012, 05:54 PM |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Sale | $21.32 | 20,000 | 426,400 | 1,315,483 | Jul 20, 2012, 05:54 PM |
| GNRC | Chief Operating Officer | Jul 06, 2012 | Sale | $22.64 | 2,293 | 51,914 | 1,317,056 | Jul 20, 2012, 05:54 PM |
| GNRC | Chief Operating Officer | Jul 10, 2012 | Sale | $22.43 | 30,000 | 673,000 | 1,288,237 | Jul 10, 2012, 12:54 PM |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Option Exercise | $21.75 | 6,207 | 135,002 | 1,317,776 | Jul 09, 2012, 03:17 PM |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Option Exercise | $13.00 | 8,500 | 110,500 | 1,323,983 | Jul 09, 2012, 03:17 PM |
| GNRC | Chief Operating Officer | Jul 06, 2012 | Sale | $22.64 | 2,293 | 51,914 | 1,315,483 | Jul 09, 2012, 03:17 PM |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Sale | $21.32 | 20,000 | 426,400 | 1,315,483 | Jul 09, 2012, 03:17 PM |
| GNRC | Chief Operating Officer | Jun 20, 2012 | Sale | $26.13 | 20,000 | 522,600 | 1,335,483 | Jun 21, 2012, 05:19 PM |
| GNRC | Chief Operating Officer | Jun 05, 2012 | Option Exercise | $24.17 | 5,866 | 141,781 | 1,358,117 | Jun 07, 2012, 05:24 PM |
| GNRC | Chief Operating Officer | Jun 05, 2012 | Option Exercise | $13.00 | 8,500 | 110,500 | 1,363,983 | Jun 07, 2012, 05:24 PM |
| GNRC | Chief Operating Officer | Jun 06, 2012 | Sale | $24.50 | 2,634 | 64,533 | 1,355,483 | Jun 07, 2012, 05:24 PM |
| GNRC | Chief Operating Officer | Jun 05, 2012 | Sale | $23.98 | 20,000 | 479,600 | 1,355,483 | Jun 07, 2012, 05:24 PM |
| GNRC | Chief Operating Officer | May 21, 2012 | Sale | $26.55 | 20,000 | 531,000 | 1,375,483 | May 23, 2012, 09:54 AM |
| GNRC | Chief Operating Officer | May 08, 2012 | Option Exercise | $22.94 | 6,030 | 138,328 | 1,397,953 | May 09, 2012, 05:42 PM |
| GNRC | Chief Operating Officer | May 08, 2012 | Option Exercise | $13.00 | 8,500 | 110,500 | 1,403,983 | May 09, 2012, 05:42 PM |
| GNRC | Chief Operating Officer | May 08, 2012 | Sale | $27.08 | 2,470 | 66,888 | 1,395,483 | May 09, 2012, 05:42 PM |
| GNRC | Chief Operating Officer | May 07, 2012 | Sale | $22.83 | 20,000 | 456,600 | 1,395,483 | May 09, 2012, 05:42 PM |
| GNRC | Chief Operating Officer | Apr 20, 2012 | Sale | $23.53 | 20,000 | 470,600 | 1,415,483 | Apr 24, 2012, 12:26 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| GNRC | Chief Operating Officer | Apr 22, 2013 | Sale | 656,600 |
| GNRC | Chief Operating Officer | Apr 10, 2013 | Sale | 1,061,700 |
| GNRC | Chief Operating Officer | Apr 05, 2013 | Option Exercise | 136,888 |
| GNRC | Chief Operating Officer | Apr 05, 2013 | Option Exercise | 59,500 |
| GNRC | Chief Operating Officer | Apr 05, 2013 | Sale | 671,200 |
| GNRC | Chief Operating Officer | Apr 08, 2013 | Sale | 154,073 |
| GNRC | Chief Operating Officer | Mar 20, 2013 | Sale | 692,600 |
| GNRC | Chief Operating Officer | Mar 11, 2013 | Sale | 1,023,000 |
| GNRC | Chief Operating Officer | Mar 05, 2013 | Option Exercise | 139,398 |
| GNRC | Chief Operating Officer | Mar 05, 2013 | Option Exercise | 59,500 |
| GNRC | Chief Operating Officer | Mar 05, 2013 | Sale | 694,000 |
| GNRC | Chief Operating Officer | Mar 06, 2013 | Sale | 156,861 |
| GNRC | Chief Operating Officer | Feb 20, 2013 | Sale | 738,000 |
| GNRC | Chief Operating Officer | Feb 11, 2013 | Sale | 1,187,100 |
| GNRC | Chief Operating Officer | Feb 05, 2013 | Option Exercise | 148,932 |
| GNRC | Chief Operating Officer | Feb 05, 2013 | Option Exercise | 59,500 |
| GNRC | Chief Operating Officer | Feb 05, 2013 | Sale | 754,600 |
| GNRC | Chief Operating Officer | Feb 06, 2013 | Sale | 176,210 |
| GNRC | Chief Operating Officer | Jan 22, 2013 | Sale | 726,000 |
| GNRC | Chief Operating Officer | Jan 10, 2013 | Sale | 1,048,500 |
| GNRC | Chief Operating Officer | Jan 07, 2013 | Option Exercise | 141,212 |
| GNRC | Chief Operating Officer | Jan 07, 2013 | Option Exercise | 59,500 |
| GNRC | Chief Operating Officer | Jan 07, 2013 | Sale | 683,000 |
| GNRC | Chief Operating Officer | Jan 08, 2013 | Sale | 151,232 |
| GNRC | Chief Operating Officer | Dec 20, 2012 | Sale | 683,600 |
| GNRC | Chief Operating Officer | Dec 10, 2012 | Sale | 983,700 |
| GNRC | Chief Operating Officer | Dec 05, 2012 | Option Exercise | 131,182 |
| GNRC | Chief Operating Officer | Dec 05, 2012 | Option Exercise | 59,500 |
| GNRC | Chief Operating Officer | Dec 06, 2012 | Sale | 144,709 |
| GNRC | Chief Operating Officer | Dec 05, 2012 | Sale | 655,000 |
| GNRC | Chief Operating Officer | Nov 20, 2012 | Sale | 700,400 |
| GNRC | Chief Operating Officer | Nov 12, 2012 | Sale | 1,050,600 |
| GNRC | Chief Operating Officer | Nov 05, 2012 | Option Exercise | 143,643 |
| GNRC | Chief Operating Officer | Nov 05, 2012 | Option Exercise | 59,500 |
| GNRC | Chief Operating Officer | Nov 06, 2012 | Sale | 171,421 |
| GNRC | Chief Operating Officer | Nov 05, 2012 | Sale | 706,800 |
| GNRC | Chief Operating Officer | Oct 22, 2012 | Sale | 513,400 |
| GNRC | Chief Operating Officer | Oct 10, 2012 | Sale | 754,500 |
| GNRC | Chief Operating Officer | Oct 05, 2012 | Option Exercise | 112,188 |
| GNRC | Chief Operating Officer | Oct 05, 2012 | Option Exercise | 59,500 |
| GNRC | Chief Operating Officer | Oct 08, 2012 | Sale | 105,620 |
| GNRC | Chief Operating Officer | Oct 05, 2012 | Sale | 520,000 |
| GNRC | Chief Operating Officer | Sep 20, 2012 | Sale | 470,200 |
| GNRC | Chief Operating Officer | Sep 10, 2012 | Sale | 645,600 |
| GNRC | Chief Operating Officer | Sep 05, 2012 | Option Exercise | 97,822 |
| GNRC | Chief Operating Officer | Sep 05, 2012 | Option Exercise | 59,500 |
| GNRC | Chief Operating Officer | Sep 06, 2012 | Sale | 78,948 |
| GNRC | Chief Operating Officer | Sep 05, 2012 | Sale | 413,000 |
| GNRC | Chief Operating Officer | Aug 20, 2012 | Sale | 434,400 |
| GNRC | Chief Operating Officer | Aug 10, 2012 | Sale | 658,200 |
| GNRC | Chief Operating Officer | Aug 06, 2012 | Option Exercise | 102,985 |
| GNRC | Chief Operating Officer | Aug 06, 2012 | Option Exercise | 59,500 |
| GNRC | Chief Operating Officer | Aug 06, 2012 | Sale | 451,600 |
| GNRC | Chief Operating Officer | Aug 07, 2012 | Sale | 88,363 |
| GNRC | Chief Operating Officer | Jul 20, 2012 | Sale | 483,451 |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Option Exercise | 100,790 |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Option Exercise | 59,500 |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Sale | 426,400 |
| GNRC | Chief Operating Officer | Jul 06, 2012 | Sale | 51,914 |
| GNRC | Chief Operating Officer | Jul 10, 2012 | Sale | 673,000 |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Option Exercise | 135,002 |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Option Exercise | 110,500 |
| GNRC | Chief Operating Officer | Jul 06, 2012 | Sale | 51,914 |
| GNRC | Chief Operating Officer | Jul 05, 2012 | Sale | 426,400 |
| GNRC | Chief Operating Officer | Jun 20, 2012 | Sale | 522,600 |
| GNRC | Chief Operating Officer | Jun 05, 2012 | Option Exercise | 141,781 |
| GNRC | Chief Operating Officer | Jun 05, 2012 | Option Exercise | 110,500 |
| GNRC | Chief Operating Officer | Jun 06, 2012 | Sale | 64,533 |
| GNRC | Chief Operating Officer | Jun 05, 2012 | Sale | 479,600 |
| GNRC | Chief Operating Officer | May 21, 2012 | Sale | 531,000 |
| GNRC | Chief Operating Officer | May 08, 2012 | Option Exercise | 138,328 |
| GNRC | Chief Operating Officer | May 08, 2012 | Option Exercise | 110,500 |
| GNRC | Chief Operating Officer | May 08, 2012 | Sale | 66,888 |
| GNRC | Chief Operating Officer | May 07, 2012 | Sale | 456,600 |
| GNRC | Chief Operating Officer | Apr 20, 2012 | Sale | 470,600 |