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 * PFEFFER MATTHEW J   2. Issuer Name and Ticker or Trading Symbol MANNKIND CORP [MNKD] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Corporate VP and CFO (Last) (First) (Middle) 28903 NORTH AVENUE PAINE 3. Date of Earliest Transaction (Month/Day/Year) 10/14/2013 (Street) VALENCIA, CA 91355 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, $0.01 Par Value 06/27/2014   A(1)   229,000 A $ 0 465,240 D   Common Stock, $0.01 Par Value 06/27/2014   F(2)   109,456 D $ 10 246,328 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

Employee Stock Option (right to buy)

$ 1.69

10/14/2013

A

60,000 (3)

10/14/2013

05/17/2022

Common Stock, $0.01 Par Value

60,000

$ 0

60,000

D

Employee Stock Option (right to buy)

$ 6.85

11/21/2013

A

90,000 (4)

11/21/2013

05/23/2023

Common Stock, $0.01 Par Value

90,000

$ 0

90,000

D

Employee Stock Option (right to buy)

$ 2.86

06/27/2014

A

36,000 (5)

06/27/2014

04/28/2018

Common Stock, $0.01 Par Value

36,000

$ 0

37,400

D

Employee Stock Option (right to buy)

$ 1.69

06/27/2014

A

80,000 (6)

06/27/2014

05/17/2022

Common Stock, $0.01 Par Value

80,000

$ 0

140,000

D

Employee Stock Option (right to buy)

$ 6.85

06/27/2014

A

180,000 (7)

06/27/2014

05/23/2023

Common Stock, $0.01 Par Value

180,000

$ 0

270,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
PFEFFER MATTHEW J 28903 NORTH AVENUE PAINE VALENCIA, CA 91355			Corporate VP and CFO

Signatures

/s/ Matthew J. Pfeffer		07/15/2014
**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 was granted multiple restricted stock units that vest upon the achievement of certain defined performance milestones. On June 27, 2014, one of the defined performance milestones was met, resulting in the partial vesting of the restricted stock units.
(2)	Shares withheld to satisfy the tax liability to the vesting of a restricted stock unit award.
(3)	On May 17, 2012, the reporting person was granted an option that vests upon the achievement of certain defined performance milestones. On October 14, 2013, one of the defined performance milestones was met, resulting in the partial vesting of the option.
(4)	On May 23, 2013, the reporting person was granted an option that vests upon the achievement of certain defined performance milestones. On November 21, 2013, one of the defined performance milestones was met, resulting in the partial vesting of the option.
(5)	On April 28, 2008, the reporting person was granted an option that vests upon the achievement of certain defined performance milestones. On June 27, 2014, one of the defined performance milestones was met, resulting in the partial vesting of the option.
(6)	On May 17, 2012, the reporting person was granted an option that vests upon the achievement of certain defined performance milestones. On June 27, 2014, one of the defined performance milestones was met, resulting in the partial vesting of the option.
(7)	On May 23, 2013, the reporting person was granted an option that vests upon the achievement of certain defined performance milestones. On June 27, 2014, one of the defined performance milestones was met, resulting in the partial vesting of the option.

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