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8-K

0001520262falseAlkermes plc.00015202622026-02-252026-02-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): February 25, 2026

ALKERMES PUBLIC LIMITED COMPANY

(Exact name of registrant as specified in its charter)

Ireland

001-35299

98-1007018

(State or other jurisdiction

(Commission

(IRS Employer

of incorporation)

File Number)

Identification No.)

Connaught House, 1 Burlington Road

Dublin 4, Ireland D04 C5Y6

(Address of principal executive offices)

Registrant's telephone number, including area code: + 353-1-772-8000 Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Ordinary shares, $0.01 par value

ALKS

Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Condition.

On February 25, 2026, Alkermes plc (the “Company”) announced financial results for the three months and year ended December 31, 2025 and financial expectations for the year ending December 31, 2026. Copies of the related press release and the investor presentation to be displayed during the Company’s conference call on February 25, 2026 discussing such financial results and expectations are furnished herewith as Exhibit 99.1 and Exhibit 99.2, respectively. This information, including Exhibits 99.1 and 99.2, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits. (d) Exhibits

EXHIBIT INDEX

Exhibit No.

Description

99.1

Press release issued by Alkermes plc on February 25, 2026 announcing financial results for the three months and year ended December 31, 2025 and financial expectations for the year ending December 31, 2026.

99.2

Investor presentation to be displayed by Alkermes plc on February 25, 2026.

104

Cover page interactive data file (embedded within the Inline XBRL document).

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ALKERMES PLC

Date: February 25, 2026

By:

/s/ Joshua Reed

Joshua Reed

Senior Vice President, Chief Financial Officer (Principal Financial Officer)

3

8-K

0001520262FalseAlkermes plc.00015202622026-01-122026-01-12

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 12, 2026

ALKERMES PUBLIC LIMITED COMPANY

(Exact name of registrant as specified in its charter)

Ireland

001-35299

98-1007018

(State or other jurisdiction

(Commission

(IRS Employer

of incorporation)

File Number)

Identification No.)

Connaught House, 1 Burlington Road

Dublin 4, Ireland D04 C5Y6

(Address of principal executive offices)

Registrant's telephone number, including area code: + 353-1-772-8000 Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Ordinary shares, $0.01 par value

ALKS

Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 Results of Operations and Financial Conditions.

On January 12, 2026, Alkermes plc (the “Company”) made available a copy of the corporate presentation to be displayed during its presentation at the J.P. Morgan Healthcare Conference on January 13, 2026, which includes the Company’s estimated total revenues for the year ended December 31, 2025, which are preliminary, unaudited and subject to change upon completion of the Company’s review of its financial statements for the year ended December 31, 2025. A copy of the presentation is furnished herewith as Exhibit 99.1.

Item 7.01 Regulation FD Disclosure.

The information in Item 2.02 above and in Exhibit 99.1 furnished herewith are incorporated in this Item 7.01 by reference.

The information contained in this Form 8-K, including in Items 2.02 and 7.01, and in Exhibit 99.1 furnished herewith, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits. (d) Exhibits

EXHIBIT INDEX

Exhibit No.

Description

99.1

Alkermes plc corporate presentation.

104

Cover page interactive data file (embedded within the Inline XBRL document).

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ALKERMES PLC

Date: January 12, 2026

By:

/s/ David J. Gaffin

David J. Gaffin

Secretary

3