X0306 4 2014-06-18 0 0001489096 Thermon Group Holdings, Inc. THR 0001181536 PETERSON JAY 100 THERMON DRIVE SAN MARCOS TX 78666 0 1 0 0 CFO Common Stock 2014-06-18 4 M 0 3000 12 A 12074 D Common Stock 2014-06-18 4 F 0 1804 26.58 D 10270 D Stock Option (Right to Buy) 12 2014-06-18 4 M 0 3000 0 D 2021-05-04 Common Stock 3000 2000 D Performance Units 0 Common Stock 2711 2711 D Restricted Stock Units 0 Common Stock 5422 5422 D Performance Units 0 Common Stock 5393 5393 D Restricted Stock Units 0 Common Stock 8089 8089 D Shares forfeited to cover the $12.00 exercise price per share and applicable withholding taxes. Options vest in five equal annual installments beginning on May 4, 2012. On August 2, 2012, the reporting person was granted a performance unit award; the remaining portion of the award will vest on March 31, 2015. The number of shares reflected in this filing represents the Target Award. The actual number of shares that may vest depends on the Issuer's total shareholder return performance relative to its peer group and ranges from 0% below Threshold performance, 50% at Threshold performance, 100% at Target performance and 200% at Maximum performance. On August 2, 2012, the reporting person was granted a restricted stock unit award; the remaining portion of the award will vest in equal annual installments on August 2, 2014 and 2015. On August 1, 2013, the reporting person was granted a performance unit award; the remaining portion of the award will vest in annual installments on March 31, 2015 and 2016. The number of shares reflected in this filing represents the Target Award. The actual number of shares that may vest depends on the Issuer's total shareholder return performance relative to its peer group and ranges from 0% below Threshold performance, 50% at Threshold performance, 100% at Target performance and 200% at Maximum performance. On August 1, 2013, the reporting person was granted a restricted stock unit award, which will vest in equal annual installments will vest in equal annual installments on August 1, 2014, 2015 and 2016. /s/ Jay Peterson by Sarah Alexander as attorney in fact 2014-06-23