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Livermore
Livermore
ZHEN

Citadel Advisors LLC

SEC CIK
0001423053
Latest filing
Sep 1, 2026

WRB holding history

Berkley W R 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.

WRB overviewAll 13F holders of WRBFull Q2 2026 holdings

Shares (Q2 2026)
1,475,954
Value
$104.1M
% of portfolio
0.1%
Quarters held
20
Since Q1 2021
Holdings of WRB by Citadel Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20261,475,954$104.1M0.1%+81,813+5.9%AddedHolders
Q1 20261,394,141$92.4M0.1%+1,281,891+1,142.0%AddedHolders
Q4 2025112,250$7.87M<0.1%+23,244+26.1%AddedHolders
Q3 202589,006$6.82M<0.1%+70,805+389.0%AddedHolders
Q2 202518,201$1.34M<0.1%−56,255−75.6%ReducedHolders
Q1 202574,456$5.30M<0.1%−292,920−79.7%ReducedHolders
Q4 2024367,376$21.5M<0.1%+367,376NewHolders
Q3 20240$00.0%−461,793−100.0%Sold outHolders
Q2 2024461,793$36.3M<0.1%+461,793NewHolders
Q1 20240$00.0%−36,504−100.0%Sold outHolders
Q4 202336,504$2.58M<0.1%−670,399−94.8%ReducedHolders
Q3 2023706,903$44.9M<0.1%−777,522−52.4%ReducedHolders
Q2 20231,484,425$88.4M0.1%+588,374+65.7%AddedHolders
Q1 2023896,051$55.8M0.1%+105,939+13.4%AddedHolders
Q4 2022790,112$57.3M0.1%−177,824−18.4%ReducedHolders
Q3 2022967,936$62.5M0.1%+705,021+268.2%AddedHolders
Q2 2022262,915$17.9M<0.1%−257,467−49.5%ReducedHolders
Q1 2022520,382$34.7M<0.1%−293,306−36.0%ReducedHolders
Q4 2021813,688$67.0M0.1%−2,253−0.3%ReducedHolders
Q3 2021815,941$59.7M0.1%+155,326+23.5%AddedHolders
Q2 2021660,615$49.2M0.1%−879,304−57.1%ReducedHolders
Q1 20211,539,919$116.0M0.1%––Holders

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