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Lantheus
LNTH

Fund managers haven’t disclosed any holdings of LNTH yet.

LNTH Hedge Fund Activity: Q1 2026 in Review

404 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Lantheus (LNTH) for Q1 2026, worth a combined $5.51B — up 19% from $4.62B a quarter earlier.

Buyers outnumbered sellers: 69 funds opened new LNTH positions and 47 closed out — a net gain of 22 holders — while 143 added to existing stakes and 132 trimmed.

The largest buyer was American Century Companies, adding an estimated $72.7M. The largest seller was Janus Henderson Group, cutting an estimated $66.9M.

  • 404 institutional investors held Lantheus (LNTH) as of Q1 2026, up from 391 in Q4 2025.
  • Funds reported $5.51B of Lantheus stock for Q1 2026, up 19% quarter-over-quarter.
  • 69 funds opened new Lantheus positions in Q1 2026 and 47 closed out, a net change of +22 holders.
  • The largest Lantheus buyer in Q1 2026 was American Century Companies, an estimated $72.7M added.
  • The largest Lantheus seller in Q1 2026 was Janus Henderson Group, an estimated $66.9M sold.

Based on aggregated 13F filings for Q1 2026.