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Livermore
Livermore
ZHEN

D. E. Shaw & Co., Inc.

SEC CIK
0001009207
Latest filing
Aug 14, 2026

IONS holding history

Ionis Pharmaceuticals Inc in every 13F filed by D. E. Shaw & Co., Inc., 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 (Q2 2026)
297,041
Value
$23.6M
% of portfolio
<0.1%
Quarters held
19
Since Q1 2021
Holdings of IONS by D. E. Shaw & Co., Inc., by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026297,041$23.6M<0.1%−132,558−30.9%ReducedHolders
Q1 2026429,599$32.3M<0.1%+96,796+29.1%AddedHolders
Q4 2025332,803$26.3M<0.1%−298,135−47.3%ReducedHolders
Q3 2025630,938$41.3M<0.1%+630,938NewHolders
Q1 20250$00.0%−23,123−100.0%Sold outHolders
Q4 202423,123$808.4K<0.1%−121,968−84.1%ReducedHolders
Q3 2024145,091$5.81M<0.1%−45,690−23.9%ReducedHolders
Q2 2024190,781$9.09M<0.1%+30,299+18.9%AddedHolders
Q1 2024160,482$6.96M<0.1%+41,324+34.7%AddedHolders
Q4 2023119,158$6.03M<0.1%−242,887−67.1%ReducedHolders
Q3 2023362,045$16.4M<0.1%+165,832+84.5%AddedHolders
Q2 2023196,213$8.05M<0.1%+109,562+126.4%AddedHolders
Q1 202386,651$3.10M<0.1%−212,580−71.0%ReducedHolders
Q4 2022299,231$11.3M<0.1%+89,786+42.9%AddedHolders
Q3 2022209,445$9.26M<0.1%+82,824+65.4%AddedHolders
Q2 2022126,621$4.69M<0.1%+126,621NewHolders
Q1 20220$00.0%−160,659−100.0%Sold outHolders
Q4 2021160,659$4.89M<0.1%+34,553+27.4%AddedHolders
Q3 2021126,106$4.23M<0.1%+51,440+68.9%AddedHolders
Q2 202174,666$2.98M<0.1%+66,560+821.1%AddedHolders
Q1 20218,106$364.0K<0.1%––Holders

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