Edgar Filing: BIBERSTEIN KATHRYN L

Ownership Submission

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 ^*

BIBERSTEIN KATHRYN L

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, GC, Secretary, Alks, Inc.

(Last)

(First)

(Middle)

852 WINTER ST.

3. Date of Earliest Transaction (Month/Day/Year)
09/16/2011

(Street)

WALTHAM, MA 02451

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	09/16/2011		A		32,459	A	⁽¹⁾	32,459	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

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Non Qualified Stock Option (Right to Buy)

$ 9.97

09/16/2011

10,500

⁽²⁾

04/25/2013

Common Stock

10,500

⁽³⁾

10,500

Non Qualified Stock Option (Right to Buy)

$ 14.57

09/16/2011

25,000

⁽²⁾

10/17/2013

Common Stock

25,000

⁽³⁾

25,000

Non Qualified Stock Option (Right to Buy)

$ 12.16

09/16/2011

39,500

⁽²⁾

12/10/2013

Common Stock

39,500

⁽³⁾

39,500

Non Qualified Stock Option (Right to Buy)

$ 12.3

09/16/2011

16,875

⁽²⁾

07/12/2014

Common Stock

16,875

⁽³⁾

16,875

Incentive Stock Option (Right to Buy)

$ 12.3

09/16/2011

5,625

⁽²⁾

07/12/2014

Common Stock

5,625

⁽³⁾

5,625

Incentive Stock Option (Right to Buy)

$ 14.9

09/16/2011

2,067

⁽²⁾

12/17/2014

Common Stock

2,067

⁽³⁾

2,067

Non Qualified Stock Option (Right to Buy)

$ 14.9

09/16/2011

50,433

⁽²⁾

12/17/2014

Common Stock

50,433

⁽³⁾

50,433

Non Qualified Stock Option (Right to Buy)

$ 18.6

09/16/2011

28,374

⁽²⁾

12/09/2015

Common Stock

28,374

⁽³⁾

28,374

Incentive Stock Option (Right to Buy)

$ 18.6

09/16/2011

5,376

⁽²⁾

12/09/2015

Common Stock

5,376

⁽³⁾

5,376

Incentive Stock Option (Right to Buy)

$ 20.79

09/16/2011

4,218

⁽²⁾

05/02/2016

Common Stock

4,218

⁽³⁾

4,218

Non Qualified Stock Option (Right to Buy)

$ 20.79

09/16/2011

12,657

⁽²⁾

05/02/2016

Common Stock

12,657

⁽³⁾

12,657

Non Qualified Stock Option (Right to Buy)

$ 14.38

09/16/2011

29,145

⁽²⁾

12/12/2016

Common Stock

29,145

⁽³⁾

29,145

Incentive Stock Option (Right to Buy)

$ 14.38

09/16/2011

855

⁽²⁾

12/12/2016

Common Stock

855

⁽³⁾

855

Incentive Stock Option (Right to Buy)

$ 15.95

09/16/2011

5,000

⁽²⁾

06/01/2017

Common Stock

5,000

⁽³⁾

5,000

Non Qualified Stock Option (Right to Buy)

$ 15.95

09/16/2011

15,000

⁽²⁾

06/01/2017

Common Stock

15,000

⁽³⁾

15,000

Employee Stock Option (Right to Buy)

$ 14.13

09/16/2011

15,000

⁽⁴⁾

11/05/2017

Common Stock

15,000

⁽³⁾

15,000

Employee Stock Option (Right to Buy)

$ 12.29

09/16/2011

45,000

⁽⁵⁾

05/27/2018

Common Stock

45,000

⁽³⁾

45,000

Employee Stock Option (Right to Buy)

$ 8.55

09/16/2011

65,000

⁽⁶⁾

05/26/2019

Common Stock

65,000

⁽³⁾

65,000

Restricted Stock Award

$ 0

09/16/2011

4,250

⁽⁶⁾

Common Stock

4,250

⁽⁷⁾

4,250

Employee Stock Option (Right to Buy)

$ 9.21

09/16/2011

30,000

⁽⁸⁾

11/18/2019

Common Stock

30,000

⁽³⁾

30,000

Restricted Stock Award

$ 0

09/16/2011

11,250

⁽⁸⁾

Common Stock

11,250

⁽⁷⁾

11,250

Employee Stock Option (Right to Buy)

$ 11.74

09/16/2011

86,500

⁽⁹⁾

05/17/2020

Common Stock

86,500

⁽³⁾

86,500

Restricted Stock Unit Award

$ 0

09/16/2011

9,375

⁽⁹⁾

Common Stock

9,375

⁽⁷⁾

9,375

Employee Stock Option (Right to Buy)

$ 18.105

09/16/2011

100,000

⁽¹⁰⁾

05/20/2021

Common Stock

100,000

⁽³⁾

100,000

Restricted Stock Unit Award

$ 0

09/16/2011

15,000

⁽¹⁰⁾

Common Stock

15,000

⁽⁷⁾

15,000

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
BIBERSTEIN KATHRYN L 852 WINTER ST. WALTHAM, MA 02451			SVP, GC, Secretary, Alks, Inc.

Signatures

/s/ Jennifer Baptiste, attorney-in-fact for Kathryn L. Biberstein		09/20/2011
^**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)	Received in exchange for shares of Alkermes, Inc. common stock in connection with the merger of Alkermes, Inc. and the global drug delivery technologies business of Elan (the "Merger"). On 9/16/11, the effective date of the Merger, the closing price of ALKS was $16.57 per share.
(2)	These options are fully vested in accordance with their terms.
(3)	Received in exchange for, and having substantially the same terms as, stock options of Alkermes, Inc. common stock in connection with the Merger.
(4)	75% vested as of 9/16/11, remainder vests on 11/5/11.
(5)	75% vested as of 9/16/11, remainder vests on 5/27/12.
(6)	50% vested as of 9/16/11, remainder vests in 2 equal annual installments beginning on 5/26/12.
(7)	Received in exchange for, and having substantially the same terms as, restricted stock unit awards of Alkermes, Inc. common stock in connection with the Merger.
(8)	25% vested as of 9/16/11, remainder vests in 3 equal annual installments beginning on 11/18/11.
(9)	25% vested as of 9/16/11, remainder vests in 3 equal annual installments beginning on 5/17/12.
(10)	Vests in 4 equal annual installments beginning on 5/20/12.

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