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Livermore
Livermore
ZHEN

Mariner, LLC

SEC CIK
0001373442
Latest filing
Aug 13, 2026

WRB holding history

Berkley W R Corp in every 13F filed by Mariner, 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)
101,329
Value
$7.15M
% of portfolio
<0.1%
Quarters held
21
Since Q1 2021
Holdings of WRB by Mariner, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026101,329$7.15M<0.1%+74,849+282.7%AddedHolders
Q1 202626,480$1.76M<0.1%−90,487−77.4%ReducedHolders
Q4 2025116,967$8.19M<0.1%+52,239+80.7%AddedHolders
Q3 202564,728$4.96M<0.1%−46,201−41.6%ReducedHolders
Q2 2025110,929$8.15M<0.1%+6,656+6.4%AddedHolders
Q1 2025104,273$7.42M<0.1%+3,228+3.2%AddedHolders
Q4 2024101,045$5.91M<0.1%+7,951+8.5%AddedHolders
Q3 202493,094$5.28M<0.1%+33,695+56.7%AddedHolders
Q2 202459,399$4.67M<0.1%+217+0.4%AddedHolders
Q1 202459,182$5.23M<0.1%+3,968+7.2%AddedHolders
Q4 202355,214$3.90M<0.1%+14,015+34.0%AddedHolders
Q3 202341,199$2.62M<0.1%+9,116+28.4%AddedHolders
Q2 202332,083$1.91M<0.1%−3,808−10.6%ReducedHolders
Q1 202335,891$2.23M<0.1%+4,793+15.4%AddedHolders
Q4 202231,098$2.26M<0.1%−795−2.5%ReducedHolders
Q3 202231,893$2.06M<0.1%+7,230+29.3%AddedHolders
Q2 202224,663$1.68M<0.1%+4,722+23.7%AddedHolders
Q1 202219,941$1.33M<0.1%+19,941NewHolders
Q4 20210$00.0%−11,163−100.0%Sold outHolders
Q3 202111,163$817.0K<0.1%+383+3.6%AddedHolders
Q2 202110,780$802.0K<0.1%+566+5.5%AddedHolders
Q1 202110,214$770.0K<0.1%––Holders

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