X0306 4 2016-01-28 1 0001493594 M/A-COM Technology Solutions Holdings, Inc. MTSI 0001486421 Summit Partners Private Equity Fund VII-A, L.P. 222 BERKELEY STREET 18TH FLOOR BOSTON MA 02116 0 0 1 0 0001385242 Summit Partners Private Equity Fund VII B L P 222 BERKELEY STREET 18TH FLOOR BOSTON MA 02116 0 0 1 0 0001435565 Summit Investors I, LLC 222 BERKELEY STREET 18TH FLOOR BOSTON MA 02116 0 0 1 0 0001494616 Summit Investors I (UK), L.P. 222 BERKELEY STREET 18TH FLOOR BOSTON MA 02116 0 0 1 0 Common Stock 2016-01-28 4 S 0 2700000 37.7 D 3515938 D Represents shares sold by the following entities: 1,683,844 shares of common stock sold by Summit Partners Private Equity Fund VII-A, L.P.; 1,011,343 shares of common stock sold by Summit Partners Private Equity Fund VII-B, L.P.; 4,496 shares of common stock sold by Summit Investors I, LLC.; 317 shares of common stock sold by Summit inverstors I (UK), L.P. Represents shares held by the following entities: 2,183,778 by Summit Partners Private Equity Fund VII-A, L.P.; 1,311,613 shares by Summit Partners Private Equity Fund VII-B, L.P.; 5,832 shares by Summit Investors I, LLC; 412 shares by Summit Investors I (UK), L.P.; 14,303 shares and restricted stock units in the name of Peter Y. Chung, which are held for the benefit of Summit Partners, L.P. The entities mentioned in Footnotes 1 and 2 are collectively referred to as the "Summit Entities." Each of the Summit Entities disclaims beneficial ownership of all shares except those specifically listed in the Footnotes as held by such entity, except to the extent of each such entity's pecuniary interest therein. Summit Partners Private Equity Fund VII-A, L.P., by Summit Partners PE VII, L.P., its GP, by Summit Partners PE VII, LLC, its GP, by Summit Partners, L.P., its Managing Member, by Robin W. Devereux, POA for Martin J. Mannion, Member 2016-02-01 Summit Partners Private Equity Fund VII-B, L.P., by Summit Partners PE VII, L.P., its GP, by Summit Partners PE VII, LLC, its GP, by Summit Partners, L.P., its Managing Member, by Robin W. Devereux, POA for Martin J. Mannion, Member 2016-02-01 Summit Investors I, LLC, by Summit Investors Management, LLC, its Manager, by Summit Master Company, LLC, its Managing Member, by Robin W. Devereux, POA for Martin J. Mannion, Member 2016-02-01 Summit Investors I (UK), L.P., by Summit Investors Management, LLC, its General Partner, by Summit Master Company, LLC, its Managing Member, by Robin W. Devereux, POA for Martin J. Mannion, Member 2016-02-01