Activist & passive stakes

Investors crossing the 5% ownership line, from SEC Schedule 13D (activist) and 13G (passive) filings. Newest first.

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All filings, new and amended.1–1 of 1
  • PassiveAmendment 2
    Nov 5, 2026
    MBX · Mbx Biosciences Inc
    Fmr Llc
    15% · 7,224,009 shSEC