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.1–2 of 2
  • PassiveNew
    Oct 29, 2026
    LTGO · Latigo Biotherapeutics, Inc.
    Dr. Beth C. Seidenberg
    19.9% · 13,199,669 shSEC
  • PassiveNew
    Oct 29, 2026
    ETRA · Electra Therapeutics, Inc.
    Dr. Beth C. Seidenberg
    10.1% · 6,347,539 shSEC