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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1. Name and Address of Reporting Person * MERKADEAU STUART L   2. Issuer Name and Ticker or Trading Symbol FORMFACTOR INC [FORM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SR VP GENERAL COUNSEL (Last) (First) (Middle) 7005 SOUTHFRONT ROAD 3. Date of Earliest Transaction (Month/Day/Year) 04/08/2015 (Street) LIVERMORE, CA 94551 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 05/04/2015   M   5,000 (1) A $ 0 48,549 D   Common Stock 05/04/2015   M   18,750 (2) A $ 0 67,299 D   Common Stock 05/05/2015   S   9,262 (3) D $ 8.4229 58,037 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Performance Shares

$ 0

04/08/2015

A

18,750

(4)

(5)

Common Stock

18,750

$ 0

18,750

D

Performance Shares

$ 0

05/04/2015

M

18,750

(4)

(5)

Common Stock

18,750

$ 0

0

D

Restricted Stock Units

$ 0

05/04/2015

M

5,000

(6)

(7)

Common Stock

5,000

$ 0

46,667

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MERKADEAU STUART L 7005 SOUTHFRONT ROAD LIVERMORE, CA 94551			SR VP GENERAL COUNSEL

Signatures

By: Michael M Ludwig For: Stuart M Merkadeau		05/06/2015
**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)	The restricted stock units released on April 29, 2015, were settled in shares of common stock, and were immediately cancelled upon settlement.
(2)	Represents vested shares of common stock issued pursuant to the conversion of the total units certified and earned April 8, 2015 in connection with a May 6, 2013 performance-based restricted stock unit award.
(3)	Represents vested shares of common stock sold to satisfy certain tax withholding obligations associated with the conversion of the restricted stock units.
(4)	Represents the vesting of 100% of the performance-based restricted stock units certified and earned April 8, 2015 in connection with a May 6, 2013 performance-based RSU award. All stock will be released to the reporting person on the vesting date or the first market trading day after the vesting date, during an open trading window under the Issuer's Insider Trading Policy thereafter, if the applicable vesting date is not on a market trading day during an open trading window.
(5)	The restricted stock units released were settled in shares of common stock and were immediately cancelled upon settlement.
(6)	The Restricted Stock Units vest and are exercisable in four equal annual installments on each April 29 of 2012, 2013, 2014, and 2015 (or the first market trading day during an open trading window under the Issuer's insider trading policy thereafter if the applicable vesting date is not on a market trading day during an open trading window).
(7)	The restricted stock units released were settled in shares of common stock and were immediately cancelled upon settlement.
Remarks: THE ATTACHED CONFIRMING STATEMENT GRANTING THE ATTORNEY-IN-FACT THE AUTHORITY TO EXECUTE AND FILE THIS FORM 4 HAS BEEN FILED WITH THE U.S. SECURITIES AND EXCHANGE COMMISSION.

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