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 *

COSTELLO JOHN H 		2. Issuer Name and Ticker or Trading Symbol

DUNKIN' BRANDS GROUP, INC. [ DNKN ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
President, Global Mktg & Innov
(Last)          (First)          (Middle)

C/O DUNKIN' BRANDS GROUP, INC., 130 ROYALL STREET 		3. Date of Earliest Transaction (MM/DD/YYYY)

5/2/2016
(Street)

CANTON, MA 02021
(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   5/2/2016     M    8757   A $7.31   41210   D    
Common Stock   5/2/2016     M    25000   A $25.18   66210   D    
Common Stock   5/2/2016     M    19000   A $37.26   85210   D    
Common Stock   5/2/2016     S    52757   D $46.63   32453   D    

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
Option to Purchase Common Stock   $7.31   5/2/2016     M         2627      (1) 3/9/2021   Common Stock   2627   $0.00   0   D    
Option to Purchase Common Stock   $7.31   5/2/2016     M         6130      (2) 3/9/2021   Common Stock   6130   $0.00   0   D    
Option to Purchase Common Stock   $25.18   5/2/2016     M         25000      (3) 12/11/2021   Common Stock   25000   $0.00   0   D    
Option to Purchase Common Stock   $37.26   5/2/2016     M         19000      (4) 2/12/2023   Common Stock   19000   $0.00   19000   D    

Explanation of Responses:
( 1)  On 03/09/2011, the reporting person was granted an option to purchase 13,134 shares of Common Stock. The option vests based upon time criteria (five equal annual installments that began on 03/09/2012).
( 2)  On 03/09/2011, the reporting person was granted an option to purchase 30,647 shares of Common Stock. The option vests based upon time (five equal annual installments that began on 03/09/2012) and performance criteria.
( 3)  On 12/11/2011, the reporting person was granted an option to purchase 100,000 shares of common stock. The options vests based upon time criteria (four equal annual installments that began on 12/12/2012).
( 4)  On 02/12/2013, the reporting person was granted an option to purchase 76,000 shares of common stock. The options vests based upon time criteria (four equal annual installments that began on 02/12/2014).

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
COSTELLO JOHN H
C/O DUNKIN' BRANDS GROUP, INC.
130 ROYALL STREET
CANTON, MA 02021

President, Global Mktg & Innov

Signatures
/s/ Richard Emmett, as attorney-in-fact for John H. Costello 5/4/2016
** 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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