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Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

TMO holding history

Thermo Fisher Scientific Inc. in every 13F filed by Citadel Advisors LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

TMO overviewAll 13F holders of TMOFull Q2 2026 holdings

Shares (Q2 2026)
574,992
Value
$288.3M
% of portfolio
0.2%
Quarters held
22
Since Q1 2021
Holdings of TMO by Citadel Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026574,992$288.3M0.2%−289,497−33.5%ReducedHolders
Q1 2026864,489$424.9M0.3%+174,084+25.2%AddedHolders
Q4 2025690,405$400.1M0.3%+340,704+97.4%AddedHolders
Q3 2025349,701$169.6M0.1%−747,122−68.1%ReducedHolders
Q2 20251,096,823$444.7M0.4%+976,250+809.7%AddedHolders
Q1 2025120,573$60.0M0.1%−219,367−64.5%ReducedHolders
Q4 2024339,940$176.8M0.2%+173,754+104.6%AddedHolders
Q3 2024166,186$102.8M0.1%−816,508−83.1%ReducedHolders
Q2 2024982,694$543.4M0.5%+882,024+876.2%AddedHolders
Q1 2024100,670$58.5M0.1%−428,205−81.0%ReducedHolders
Q4 2023528,875$280.7M0.3%+281,915+114.2%AddedHolders
Q3 2023246,960$125.0M0.1%+121,162+96.3%AddedHolders
Q2 2023125,798$65.6M0.1%−111,917−47.1%ReducedHolders
Q1 2023237,715$137.0M0.1%+86,060+56.7%AddedHolders
Q4 2022151,655$83.5M0.1%+120,973+394.3%AddedHolders
Q3 202230,682$15.6M<0.1%−242,002−88.7%ReducedHolders
Q2 2022272,684$148.1M0.2%+241,031+761.5%AddedHolders
Q1 202231,653$18.7M<0.1%+8,372+36.0%AddedHolders
Q4 202123,281$15.5M<0.1%−170,824−88.0%ReducedHolders
Q3 2021194,105$110.9M0.1%−187,607−49.1%ReducedHolders
Q2 2021381,712$192.6M0.2%+155,110+68.5%AddedHolders
Q1 2021226,602$103.4M0.1%––Holders

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