SCHEDULE: State Street Discloses 5.2% Passive Stake in Alkermes PLC

State Street Corporation has reported a 5.2% passive beneficial ownership stake in Alkermes PLC, holding 8,540,351 shares as of September 30, 2025.

Summary

• State Street Corporation, a Massachusetts-based entity, has filed a Schedule 13G indicating beneficial ownership in Alkermes PLC.
• As of September 30, 2025, State Street Corporation beneficially owns 8,540,351 shares of Alkermes PLC's common stock.
• This ownership represents 5.2% of the total class of securities.
• State Street Corporation holds sole dispositive power over 0 shares and shared dispositive power over 8,540,351 shares.
• The entity holds sole voting power over 0 shares and shared voting power over 8,026,911 shares.
• The filing certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Alkermes PLC.
• Subsidiaries identified as acquiring the security include SSGA Funds Management, Inc., State Street Global Advisors Europe Limited, State Street Global Advisors Limited, State Street Global Advisors Trust Company, and State Street Global Advisors, Ltd.

Sentiment

Score: 5

Explanation: The filing is a factual disclosure of beneficial ownership and does not contain information that would inherently suggest a positive or negative sentiment regarding the issuer's performance or outlook.

Positives

• A significant institutional investor, State Street Corporation, holds a 5.2% stake in Alkermes PLC, which can be viewed as a vote of confidence in the company's long-term prospects by a major financial institution.

Future Outlook

This filing is a disclosure of current beneficial ownership and does not contain forward-looking statements or guidance regarding Alkermes PLC's future performance or State Street Corporation's investment strategy beyond the passive nature of the stake.

Industry Context

This filing represents a routine disclosure by a major institutional asset manager, State Street Corporation, regarding its passive investment holdings in a pharmaceutical company, Alkermes PLC. Such disclosures are common for large investment firms that cross the 5% beneficial ownership threshold in publicly traded companies, reflecting their role in managing diversified portfolios for clients.

Stakeholder Impact

• Shareholders of Alkermes PLC may view State Street Corporation's 5.2% passive stake as a sign of institutional confidence in the company's value and prospects.

Key Dates

Keywords

Alkermes PLC, State Street Corporation, Beneficial Ownership, Schedule 13G, Institutional Investor, Common Stock, Passive Investment