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 * HENNEY JANE E MD   2. Issuer Name and Ticker or Trading Symbol CUBIST PHARMACEUTICALS INC [CBST] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 65 HAYDEN AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 06/03/2014 (Street) LEXINGTON, MA 02421 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 06/03/2014   A   899 (1) A $ 0 3,540 D   Common Stock 06/03/2014   M   1,104 A $ 0 4,644 D

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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

Stock Options (Right to Buy)

$ 66.68

06/03/2014

A

6,202 (2)

06/03/2015(3)

06/03/2024

Common Stock

6,202

$ 0

6,202

D

Restricted Stock Units

$ 0 (4)

06/03/2014

A

1,687 (5)

06/03/2015(6)

(7)

Common Stock

1,687

$ 0

1,687

D

Restricted Stock Units

(4)

06/03/2014

M

1,104

06/03/2014(8)

(8)

Common Stock

1,104

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
HENNEY JANE E MD 65 HAYDEN AVENUE LEXINGTON, MA 02421	X

Signatures

/s/ Joseph L. Farmer - Attorney in fact		06/05/2014
**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)	The Reporting Person elected to receive the entire amount of his/her annual retainer for service as a Director in common stock. The shares of common stock reported in the table respresents the shares of common stock issued to the Reporting Person for the annual retainer that was payable to the Reporting Person as of the Issuer's June 3, 2014 Annual Meeting of Stockholders.
(2)	The number of stock options is equal to the fair value of $112,500 calculated using the Black-Scholes option-pricing model in accordance with ASC Topic 718.
(3)	Options vest 100% on the earlier of the first anniversary of the grant date or the date of the Company's 2015 Annual Meeting of Stockholders.
(4)	Each restricted stock unit represents a contingent right to receive one share of Cubist common stock for no consideration.
(5)	The number of restricted stock units is equal to the fair value of $112,500 calculated using the Black-Scholes option-pricing model in accordance with ASC Topic 718.
(6)	The restricted stock units vest 100% on the earlier of the first anniversary of the grant date or the date of the Company's 2015 Annual Meeting of Stockholders.
(7)	The restricted stock units vest 100% on the earlier of the first anniversary of the grant date or the date of the Company's 2015 Annual Meeting of Stockholders.
(8)	The restricted stock units vest 100% on the earlier of the first anniversary of the grant date or the date of the Company's 2014 Annual Meeting of Stockholders.

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