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
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Welch David F 		2. Issuer Name and Ticker or Trading Symbol

INFINERA Corp [ INFN ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
President
(Last)          (First)          (Middle)

C/O INFINERA CORPORATION, 140 CASPIAN COURT 		3. Date of Earliest Transaction (MM/DD/YYYY)

5/18/2017
(Street)

SUNNYVALE, CA 94089
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   5/18/2017     M    29214   A $7.61   691200   I   See Footnote   (1)
Common Stock   5/18/2017     M    101342   A $7.61   792542   I   See Footnote   (1)
Common Stock                  307593   I   See Footnote   (2)
Common Stock                  542550   I   See Footnote   (3)
Common Stock                  140000   I   See Footnote   (4)
Common Stock                  2500   I   See Footnote   (5)

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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
Employee Stock Option (Right to Buy)   $7.61   5/18/2017     M         29214      (6) 6/6/2017   Common Stock   29214.0   $0   0   D    
Employee Stock Option (Right to Buy)   $7.61   5/18/2017     M         101342      (6) 6/6/2017   Common Stock   101342.0   $0   0   D    
Employee Stock Option (Right to Buy)   $7.61                      (6) 2/28/2018   Common Stock   2817.0     2817   D    
Employee Stock Option (Right to Buy)   $7.61                      (6) 2/28/2018   Common Stock   81683.0     81683   D    
Employee Stock Option (Right to Buy)   $7.11                      (6) 2/10/2019   Common Stock   100000.0     100000   D    
Employee Stock Option (Right to Buy)   $7.45                      (6) 8/10/2019   Common Stock   150000.0     150000   D    
Employee Stock Option (Right to Buy)   $8.58                      (6) 2/10/2021   Common Stock   20250.0     20250   D    
Employee Stock Option (Right to Buy)   $8.58                      (6) 2/10/2021   Common Stock   60750.0     60750   D    
Employee Stock Option (Right to Buy)   $8.58                      (6) 2/10/2021   Common Stock   39465.0     39465   D    
Employee Stock Option (Right to Buy)   $8.58                      (6) 2/10/2021   Common Stock   41535.0     41535   D    
Restricted Stock Units     (7)                    (8)   (8) Common Stock   12000.0     12000   D    
Restricted Stock Units     (7)                    (9)   (9) Common Stock   9590.0     9590   D    
Restricted Stock Units     (7)                    (10)   (10) Common Stock   14385.0     14385   D    
Restricted Stock Units     (7)                    (11)   (11) Common Stock   65137.0     65137   D    
Restricted Stock Units     (7)                    (12)   (12) Common Stock   114831.0     114831   D    

Explanation of Responses:
(1)  These shares are held directly by The Welch Family Trust u/a dtd 04/03/1996, for which Dr. Welch is a trustee.
(2)  These shares are held directly by LRFA, LLC, for which Dr. Welch is the sole managing member.
(3)  These shares are held directly by SEI Private Trust Company, Trustee of The Welch Family Heritage Trust I u/I dated 9/24/01, for which Dr. Welch is a trustee.
(4)  These shares are held directly by The Welch Group, L.P., for which Dr. Welch is the general partner.
(5)  These shares are held directly by Dr. Welch as a trustee for his children. Dr. Welch disclaims beneficial ownership of the shares held in trust for his children, and this report shall not be deemed an admission that Dr. Welch is the beneficial owner of the shares held in trust for his children for purposes of Section 16 or for any other purpose.
(6)  This option is fully-vested.
(7)  Each restricted stock unit ("RSU") represents a contingent right to receive one share of Infinera Corporation common stock.
(8)  These RSUs vest in four annual installments beginning on August 5, 2014.
(9)  These RSUs vest in three annual installments beginning on May 5, 2016.
(10)  These RSUs vest as to 50% of the shares on May 5, 2017 and 50% of the shares on May 5, 2018.
(11)  These RSUs vest in four annual installments beginning on May 5, 2017.
(12)  These RSUs vest in four annual installments beginning on May 5, 2018.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Welch David F
C/O INFINERA CORPORATION
140 CASPIAN COURT
SUNNYVALE, CA 94089 		X
President

Signatures
/s/ Michael Post, by Power of Attorney 5/22/2017
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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