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Livermore
Livermore
ZHEN

Janus Henderson Group PLC

SEC CIK
0001274173
Latest filing
May 18, 2026

IONS holding history

Ionis Pharmaceuticals Inc in every 13F filed by Janus Henderson Group PLC, 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 Q1 2026 holdings

Shares (Q1 2026)
68,191
Value
$5.12M
% of portfolio
<0.1%
Quarters held
20
Since Q1 2021
Holdings of IONS by Janus Henderson Group PLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q1 202668,191$5.12M<0.1%00.0%UnchangedHolders
Q4 202568,191$5.40M<0.1%+4,314+6.8%AddedHolders
Q3 202563,877$4.18M<0.1%00.0%UnchangedHolders
Q2 202563,877$2.52M<0.1%00.0%UnchangedHolders
Q1 202563,877$1.99M<0.1%00.0%UnchangedHolders
Q4 202463,877$2.23M<0.1%+4,900+8.3%AddedHolders
Q3 202458,977$2.36M<0.1%00.0%UnchangedHolders
Q2 202458,977$2.81M<0.1%−740−1.2%ReducedHolders
Q1 202459,717$2.59M<0.1%+140.0%AddedHolders
Q4 202359,703$3.02M<0.1%−103−0.2%ReducedHolders
Q3 202359,806$2.71M<0.1%+40.0%AddedHolders
Q2 202359,802$2.45M<0.1%−57−0.1%ReducedHolders
Q1 202359,859$2.14M<0.1%+6,137+11.4%AddedHolders
Q4 202253,722$2.03M<0.1%+30,582+132.2%AddedHolders
Q3 202223,140$1.02M<0.1%−67−0.3%ReducedHolders
Q2 202223,207$858.0K<0.1%−2,516−9.8%ReducedHolders
Q1 202225,723$953.0K<0.1%+70.0%AddedHolders
Q4 202125,716$783.0K<0.1%+11,968+87.1%AddedHolders
Q3 202113,748$461.0K<0.1%+13,748NewHolders
Q2 20210$00.0%−76,644−100.0%Sold outHolders
Q1 202176,644$3.45M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.