ALKS — Alkermes Plc

Ownership history in MPM BioImpact LLC  ·  4 quarters on record

This page tracks every 13F SEC filing in which MPM BioImpact LLC reported a position in Alkermes Plc (ALKS). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
2.72% (2025 Q2)
Avg. % of fund
2.36%
First filed
2024 Q2
Last filed
2025 Q3
Quarters held
4
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q3 UNCHANGED 549,262 — 0% 2.70% $16.5M $30.00
2025 Q2 ADDED 549,262 +211,659 +62.7% 2.72% $15.7M $28.61
2025 Q1 REDUCED 337,603 -219,953 -39.4% 1.92% $11.1M $33.02
2024 Q2 INITIATED 557,556 — — 2.09% $13.4M —
% of Fund (quarterly)    ALKS price (monthly, adj. close)

Other funds also holding ALKS

As of 2025 Q4 — sorted by position size

Commodore Capital LP 3Y 6.61% Atle Fund Management AB 3Y 7Y 2.16% Opaleye Management Inc. 3Y 7Y 1.81% BAKER BROS. ADVISORS LP 3Y 7Y 1.64% Affinity Asset Advisors, LLC 3Y 1.59% Soleus Capital Management, L.P. 3Y 1.36% Knott David M Jr 3Y 1.23% Krensavage Asset Management, LLC 3Y 7Y 1.07% Deep Track Capital, LP 3Y 1.0% Palo Alto Investors LP 3Y 7Y 0.94%
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