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)
EVP/CAO/CCO/CRO Alks Inc;

(Last)

(First)

(Middle)

852 WINTER ST.

3. Date of Earliest Transaction (Month/Day/Year)
02/16/2018

(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)
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	02/17/2018		M		3,750	A	$ 0	15,974	D
Ordinary Shares	02/17/2018		F		1,148	D	$ 67.26	14,826	D
Ordinary Shares	02/20/2018		M		6,582	A	$ 11.74	21,408	D
Ordinary Shares	02/20/2018		M		3,588	A	$ 18.105	24,996	D
Ordinary Shares	02/20/2018		M		4,107	A	$ 16.55	29,103	D
Ordinary Shares	02/20/2018		M		2,965	A	$ 33.72	32,068	D
Ordinary Shares								28,856	I	By 2016 GRAT ⁽¹⁾
Ordinary Shares								113,017	I	By 2017 GRAT ⁽²⁾

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Restricted Stock Unit Award

$ 0

02/16/2018

17,500

02/16/2019⁽³⁾

⁽³⁾

Ordinary Shares

17,500

$ 0

17,500

Employee Stock Option (Right to Buy)

$ 67.26

02/16/2018

71,000

02/16/2019⁽⁴⁾

02/16/2028

Ordinary Shares

71,000

$ 0

71,000

Restricted Stock Unit Award

$ 0

02/17/2018

3,750

02/17/2018⁽⁵⁾

⁽⁵⁾

Ordinary Shares

3,750

$ 0

11,250

Employee Stock Option (Right to Buy)

$ 11.74

02/20/2018

6,582

⁽⁶⁾

05/17/2020

Ordinary Shares

6,582

$ 0

77,983

Employee Stock Option (Right to Buy)

$ 18.105

02/20/2018

3,588

⁽⁶⁾

05/20/2021

Ordinary Shares

3,588

$ 0

94,477

Employee Stock Option (Right to Buy)

$ 16.55

02/20/2018

4,107

⁽⁶⁾

05/21/2022

Ordinary Shares

4,107

$ 0

113,958

Employee Stock Option (Right to Buy)

$ 33.72

02/20/2018

2,965

⁽⁶⁾

05/28/2023

Ordinary Shares

2,965

$ 0

77,035

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			EVP/CAO/CCO/CRO Alks Inc;

Signatures

/s/ Jennifer Baptiste, attorney-in-fact for Kathryn L. Biberstein		02/21/2018
^**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)	Shares held by the Kathryn L. Biberstein 2016 Annuity Trust dated December 9, 2016 (the "2016 GRAT"). The Reporting Person is a trustee and beneficiary of the 2016 GRAT and may be deemed to hold voting and dispositive power with regard to the reported shares held by the 2016 GRAT.
(2)	Shares held by the Kathryn L. Biberstein 2017 Annuity Trust dated December 11, 2017 (the "2017 GRAT"). The Reporting Person is a trustee and beneficiary of the 2017 GRAT and may be deemed to hold voting and dispositive power with regard to the reported shares held by the 2017 GRAT.
(3)	Shares subject to the restricted stock unit award vest in equal annual installments over a four year period, commencing on 2/16/19.
(4)	Shares subject to the stock option award vest in four equal annual installments commencing on 2/16/2019.
(5)	Shares subject to the restricted stock unit award vest in equal annual installments over a four year period, commencing on 2/17/18.
(6)	These options are fully vested in accordance with their terms.

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