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Livermore
Livermore
ZHEN

Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

SEM holding history

Select Medical Holdings Corp 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.

SEM overviewAll 13F holders of SEMFull Q2 2026 holdings

Shares (Q2 2026)
21,524
Value
$355.4K
% of portfolio
<0.1%
Quarters held
19
Since Q1 2021
Holdings of SEM by Citadel Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202621,524$355.4K<0.1%−34,629−61.7%ReducedHolders
Q1 202656,153$914.7K<0.1%−166,032−74.7%ReducedHolders
Q4 2025222,185$3.30M<0.1%−135,765−37.9%ReducedHolders
Q3 2025357,950$4.60M<0.1%−142,833−28.5%ReducedHolders
Q2 2025500,783$7.60M<0.1%+500,783NewHolders
Q1 20250$00.0%−458,072−100.0%Sold outHolders
Q4 2024458,072$8.63M<0.1%+458,072NewHolders
Q3 20240$00.0%−112,651−100.0%Sold outHolders
Q2 2024112,651$3.95M<0.1%+89,059+377.5%AddedHolders
Q1 202423,592$711.3K<0.1%−137,375−85.3%ReducedHolders
Q4 2023160,967$3.78M<0.1%−12,408−7.2%ReducedHolders
Q3 2023173,375$4.38M<0.1%+14,865+9.4%AddedHolders
Q2 2023158,510$5.05M<0.1%−233,772−59.6%ReducedHolders
Q1 2023392,282$10.1M<0.1%+244,200+164.9%AddedHolders
Q4 2022148,082$3.68M<0.1%−7,368−4.7%ReducedHolders
Q3 2022155,450$3.44M<0.1%−22,188−12.5%ReducedHolders
Q2 2022177,638$4.20M<0.1%−146,896−45.3%ReducedHolders
Q1 2022324,534$7.79M<0.1%+314,220+3,046.5%AddedHolders
Q4 202110,314$303.0K<0.1%+10,314NewHolders
Q3 20210$00.0%−199,876−100.0%Sold outHolders
Q2 2021199,876$8.45M<0.1%−23,134−10.4%ReducedHolders
Q1 2021223,010$7.61M<0.1%––Holders

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