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Livermore
Livermore
ZHEN

Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

ICLR holding history

Icon PLC 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.

ICLR overviewAll 13F holders of ICLRFull Q2 2026 holdings

Shares (Q2 2026)
148,573
Value
$25.8M
% of portfolio
<0.1%
Quarters held
21
Since Q1 2021
Holdings of ICLR by Citadel Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026148,573$25.8M<0.1%−103,034−41.0%ReducedHolders
Q1 2026251,607$27.8M<0.1%+209,642+499.6%AddedHolders
Q4 202541,965$7.65M<0.1%−228,014−84.5%ReducedHolders
Q3 2025269,979$47.2M<0.1%−1,676,163−86.1%ReducedHolders
Q2 20251,946,142$283.1M0.2%+1,240,822+175.9%AddedHolders
Q1 2025705,320$123.4M0.1%+133,715+23.4%AddedHolders
Q4 2024571,605$119.9M0.1%−8,444−1.5%ReducedHolders
Q3 2024580,049$166.7M0.2%−780,158−57.4%ReducedHolders
Q2 20241,360,207$426.4M0.4%+474,000+53.5%AddedHolders
Q1 2024886,207$297.7M0.3%+24,528+2.8%AddedHolders
Q4 2023861,679$243.9M0.2%−625,886−42.1%ReducedHolders
Q3 20231,487,565$366.3M0.4%+1,376,919+1,244.4%AddedHolders
Q2 2023110,646$27.7M<0.1%+102,163+1,204.3%AddedHolders
Q1 20238,483$1.81M<0.1%−20,090−70.3%ReducedHolders
Q4 202228,573$5.55M<0.1%+1,817+6.8%AddedHolders
Q3 202226,756$4.92M<0.1%+26,756NewHolders
Q2 20220$00.0%−328,001−100.0%Sold outHolders
Q1 2022328,001$79.8M0.1%+313,693+2,192.4%AddedHolders
Q4 202114,308$4.43M<0.1%+12,258+598.0%AddedHolders
Q3 20212,050$537.0K<0.1%−822,789−99.8%ReducedHolders
Q2 2021824,839$170.5M0.2%+728,325+754.6%AddedHolders
Q1 202196,514$19.0M<0.1%––Holders

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