MACOM Technology Solutions Holdings, Inc. — Director's Dealing 2012

Mar 21, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: M/A-COM Technology Solutions Holdings, Inc. (MTSI)
CIK: 0001493594
Period of Report: 2012-03-20

Reporting Person: Summit Partners Private Equity Fund VII-A, L.P. (10% Owner)
Reporting Person: Summit Partners Private Equity Fund VII B L P (10% Owner)
Reporting Person: Summit Investors I, LLC (10% Owner)
Reporting Person: Summit Investors I (UK), L.P. (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-03-20	Common Stock	C	8471200	—	Acquired	8471200	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-03-20	Class B Convertible Preferred Shares	$	C	33884814	Disposed		Common Stock (8471200)	Direct

Footnotes

F1: The Common Stock is held as follows: 5,283,026 shares in the name of Summit Partners Private Equity Fund VII-A, L.P.; 3,173,070 shares in the name of Summit Partners Private Equity Fund VII-B, L.P.; 14,108 shares in the name of Summit Investors I, LLC; 996 shares in the name of Summit Investors I (UK), L.P.

F2: The Class B Convertible Preferred Stock is convertible into M/A-COM Technology Solutions Holdings, Inc. common stock on the basis of one share of Common Stock for every four shares of Class B Convertible Preferred Stock and has no expiration date.

F3: The Convertible Class B Preferred Stock was held as follows: 21,132,108 shares in the name of Summit Partners Private Equity Fund VII-A, L.P.; 12,692,284 shares in the name of Summit Partners Private Equity Fund VII-B, L.P.; 56,436 shares in the name of Summit Investors I, LLC; 3,986 shares in the name of Summit Investors I (UK), L.P.