Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
CHUNG PETER Y
   2. Issuer Name and Ticker or Trading Symbol
M/A-COM Technology Solutions Holdings, Inc. [MTSI] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
Indirect GP of 10% Owner
(Last)
(First)
(Middle)
C/O SUMMIT PARTNERS, 222 BERKELEY STREET, 18TH FLOOR		 3. Date of Earliest Transaction (Month/Day/Year)
02/28/2014
(Street)

BOSTON, MA 02116		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 02/28/2014   A   2,970 (1) A $ 0 8,482,364 (2) I Shares acquired are indirect. See footnote. (1)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
CHUNG PETER Y
C/O SUMMIT PARTNERS
222 BERKELEY STREET, 18TH FLOOR
BOSTON, MA 02116		   X     Indirect GP of 10% Owner

Signatures

 Robin W. Devereux, Power of Attorney for Peter Y. Chung   03/04/2014
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Represents restricted stock units granted to Mr. Chung as part of the director compensation program. The restricted stock units will settle on February 16, 2015 solely by delivery of an equal number of shares of Common Stock. Mr. Chung is a member of Summit Master Company, LLC, which is the general partner of Summit Partners, L.P. Mr. Chung holds the restricted stock units for the benefit of Summit Partners, L.P., which determines when the Common Stock underlying the restricted stock units will be sold and is entitled to the proceeds. Accordingly, Summit Partners, L.P. and Summit Master Company, LLC, may be deemed indirect beneficial owners of the restricted stock units. Mr. Chung, Summit Partners, L.P., and Summit Master Company, LLC, each disclaims beneficial ownership of the restricted stock units except to the extent of their pecuniary interest therein.
(2) 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.; 11,164 shares in the name of Peter Y. Chung, which are held for the benefit of Summit Partners, L.P.

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