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EcoR1 Capital, LLC

SEC CIK
0001587114
Latest filing
Aug 14, 2026

IONS holding history

Ionis Pharmaceuticals Inc in every 13F filed by EcoR1 Capital, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

IONS overviewAll 13F holders of IONSFull Q2 2026 holdings

Shares (Q4 2024)
0
Sold out in Q4 2024
Value
$0
% of portfolio
0.0%
Quarters held
1
Since Q3 2024
Holdings of IONS by EcoR1 Capital, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q4 20240$00.0%−500,000−100.0%Sold outHolders
Q3 2024500,000$20.0M0.7%+500,000NewHolders