SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

LANDINE MICHAEL J

(Last)

(First)

(Middle)

852 WINTER ST.

(Street)

WALTHAM

02451

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Alkermes plc. [ ALKS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	SVP, Corp Dev., Alkermes, Inc.

3. Date of Earliest Transaction (Month/Day/Year)
12/01/2015

4. If Amendment, Date of 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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Ordinary Shares	12/01/2015		M⁽¹⁾		8,374	A	$18.6	149,698	D
Ordinary Shares	12/01/2015		M⁽¹⁾		1,626	A	$18.6	151,324	D
Ordinary Shares	12/01/2015		S⁽²⁾		8,298	D	$71.9685⁽³⁾	143,026	D
Ordinary Shares	12/01/2015		S⁽²⁾		1,400	D	$73.1143⁽⁴⁾	141,626	D
Ordinary Shares	12/01/2015		S⁽²⁾		302	D	$73.5529⁽⁵⁾	141,324	D

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 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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Non Qualified Stock Option (Right to Buy)	$18.6	12/01/2015		M⁽¹⁾			8,374	⁽⁶⁾	12/09/2015	Ordinary Shares	8,374	$0	0	D
Incentive Stock Option (Right to Buy)	$18.6	12/01/2015		M⁽¹⁾			1,626	⁽⁶⁾	12/09/2015	Ordinary Shares	1,626	$0	3,750	D

Explanation of Responses:

1. This option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

2. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $71.44 to $72.37. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

4. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $72.45 to $73.42. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

5. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $73.45 to $73.66. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

6. These options are fully vested in accordance with their terms.

	/s/ Jennifer Baptiste, attorney-in-fact for Michael J. Landine	12/02/2015
	** 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).
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