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Livermore
Livermore
ZHEN

Renaissance Technologies LLC

SEC CIK
0001037389
Latest filing
Aug 13, 2026

IONS holding history

Ionis Pharmaceuticals Inc in every 13F filed by Renaissance Technologies 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 (Q2 2026)
559,414
Value
$44.4M
% of portfolio
0.1%
Quarters held
22
Since Q1 2021
Holdings of IONS by Renaissance Technologies LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026559,414$44.4M0.1%+253,865+83.1%AddedHolders
Q1 2026305,549$22.9M<0.1%+81,942+36.6%AddedHolders
Q4 2025223,607$17.7M<0.1%−263,107−54.1%ReducedHolders
Q3 2025486,714$31.8M<0.1%+216,000+79.8%AddedHolders
Q2 2025270,714$10.7M<0.1%+117,200+76.3%AddedHolders
Q1 2025153,514$4.63M<0.1%−52,000−25.3%ReducedHolders
Q4 2024205,514$7.18M<0.1%+15,000+7.9%AddedHolders
Q3 2024190,514$7.63M<0.1%−59,000−23.6%ReducedHolders
Q2 2024249,514$11.9M<0.1%+69,800+38.8%AddedHolders
Q1 2024179,714$7.79M<0.1%+67,300+59.9%AddedHolders
Q4 2023112,414$5.69M<0.1%−157,386−58.3%ReducedHolders
Q3 2023269,800$12.2M<0.1%−100,700−27.2%ReducedHolders
Q2 2023370,500$15.2M<0.1%−265,814−41.8%ReducedHolders
Q1 2023636,314$22.7M<0.1%−542,500−46.0%ReducedHolders
Q4 20221,178,814$44.5M0.1%+311,100+35.9%AddedHolders
Q3 2022867,714$38.4M0.1%+252,900+41.1%AddedHolders
Q2 2022614,814$22.8M<0.1%+479,900+355.7%AddedHolders
Q1 2022134,914$5.00M<0.1%−95,900−41.5%ReducedHolders
Q4 2021230,814$7.02M<0.1%+133,100+136.2%AddedHolders
Q3 202197,714$3.28M<0.1%−678,700−87.4%ReducedHolders
Q2 2021776,414$31.0M<0.1%+189,000+32.2%AddedHolders
Q1 2021587,414$26.4M<0.1%––Holders

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