# EDGAR Filing Document

**Accession Number:** 0001520262
**File Stem:** 0001127602-23-007177
**Filing Date:** 2023-2
**Character Count:** 6775
**Document Hash:** 3624c487729ea967d4d1b3df2941d0b0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001127602-23-007177.hdr.sgml**: 20230224

**ACCESSION NUMBER**: 0001127602-23-007177

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230222

**FILED AS OF DATE**: 20230224

**DATE AS OF CHANGE**: 20230224

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Brown Iain Michael
- **CENTRAL INDEX KEY:** 0001643456

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-35299
- **FILM NUMBER:** 23669628

**MAIL ADDRESS:**
- **STREET 1:** 14 ROYALSTON AVENUE
- **CITY:** WINCHESTER
- **STATE:** MA
- **ZIP:** 01890

**FORMER NAME:**
- **FORMER CONFORMED NAME:** Brown Iain Michael Brown
- **DATE OF NAME CHANGE:** 20150527
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Alkermes plc.
- **CENTRAL INDEX KEY:** 0001520262
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **IRS NUMBER:** 981007018
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** CONNAUGHT HOUSE
- **STREET 2:** 1 BURLINGTON ROAD
- **CITY:** DUBLIN 4
- **STATE:** L2
- **ZIP:** 00000
- **BUSINESS PHONE:** 00-353-1-772-8000

**MAIL ADDRESS:**
- **STREET 1:** CONNAUGHT HOUSE
- **STREET 2:** 1 BURLINGTON ROAD
- **CITY:** DUBLIN 4
- **STATE:** L2
- **ZIP:** 00000

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ANTLER SCIENCE TWO PLC
- **DATE OF NAME CHANGE:** 20110804

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Antler Science Two Ltd
- **DATE OF NAME CHANGE:** 20110509

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Brown Iain Michael<br><sub>(Last) (First) (Middle)</sub><br>852 WINTER STREET<br><sub>(Street)</sub><br>WALTHAM, MA 02451<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2023-02-22 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_SVP, Chief Financial Officer_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Alkermes plc. [ ALKS ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Ordinary Shares | 2023-02-22 |  | M |  | 6969 | A | <sup>(1)</sup> | 84887 | D |  |
| Ordinary Shares | 2023-02-22 |  | F |  | 2049 | D | $27.77 | 82838 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Restricted Stock Unit Award | <sup>(1)</sup> | 2023-02-22 |  | M |  |  | 6969 | <sup>(2)</sup> | <sup>(2)</sup> | Ordinary Shares | 6969 | <sup>(1)</sup> | 13939 | D |  |
| Employee Stock Option (Right to Buy) | $27.36 | 2023-02-23 |  | A |  | 91375 |  | <sup>(3)</sup> | 2033-02-23 | Ordinary Shares | 91375 | $0 | 91375 | D |  |
| Restricted Stock Unit Award | <sup>(1)</sup> | 2023-02-23 |  | A |  | 22844 |  | <sup>(4)</sup> | <sup>(4)</sup> | Ordinary Shares | 22844 | $0 | 22844 | D |  |

---

### Footnotes:

(1) Each restricted stock unit represents a contingent right to receive one ordinary share.

(2) Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/22/2022.

(3) Shares underlying the stock option vest and become exercisable in four equal annual installments commencing on 2/23/2024.

(4) Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/23/2024.

**Signature:** /s/ Shantale Greenson, attorney-in-fact for Iain M. Brown  
**Date:** 2023-02-24

### Remarks:

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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**