DOSSIER · 13F Holders · Q1 2026
ALXN
ALKERMES PLC
2 institutions still hold ALKERMES PLC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.
CUSIP 015351109·2 13F holders·last filed Mar 31, 2026
AI Holders Summary · Q1 2026
2 institutions reported ALXN in Q1 2026. Kentucky Retirement Systems leads at 99.7% of the visible book.
Top holders
Sorted by position value. Source: SEC EDGAR 13F-HR filings.