Chronology 13F
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IONIS PHARMACEUTICALS INC

IONS · Health Care

2 whale investors

Whale investors

Concentrated managers reporting this company in their latest 13F.

2 holders
  1. Tweedy, BrowneJohn Spears
    EquityQ2 2026
    $180.81M13.70% portfolio
  2. ARK Investment ManagementCathie Wood
    EquityQ2 2026
    $23.85M0.15% portfolio

Holdings reflect reported 13F data for each manager’s latest filing and may be delayed or incomplete.