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Rational Advisors LLC

SEC CIK
0001143565
Latest filing
Jul 24, 2026

BRK.B holding history

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

BRK.B overviewAll 13F holders of BRK.BFull Q2 2026 holdings

Shares (Q2 2026)
4,981
Value
$2.49M
% of portfolio
0.2%
Quarters held
19
Since Q3 2021
Holdings of BRK.B by Rational Advisors LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20264,981$2.49M0.2%−1,656−25.0%ReducedHolders
Q1 20266,637$3.18M0.3%+1,721+35.0%AddedHolders
Q4 20254,916$2.47M0.3%+3,277+199.9%AddedHolders
Q3 20251,639$824.0K0.1%+164+11.1%AddedHolders
Q2 20251,475$716.5K0.1%−1,143−43.7%ReducedHolders
Q1 20252,618$1.39M0.1%−886−25.3%ReducedHolders
Q4 20243,504$1.59M0.2%−135−3.7%ReducedHolders
Q3 20243,639$1.67M0.2%+663+22.3%AddedHolders
Q2 20242,976$1.21M0.1%−935−23.9%ReducedHolders
Q1 20243,911$1.64M0.2%+3,911NewHolders
Q4 20230$00.0%−3,838−100.0%Sold outHolders
Q3 20233,838$1.34M0.1%−1,247−24.5%ReducedHolders
Q2 20235,085$1.73M0.1%+2,700+113.2%AddedHolders
Q1 20232,385$736.4K0.1%−2,422−50.4%ReducedHolders
Q4 20224,807$1.48M0.1%−1,895−28.3%ReducedHolders
Q3 20226,702$1.79M0.1%+169+2.6%AddedHolders
Q2 20226,533$1.78M0.1%−1,361−17.2%ReducedHolders
Q1 20227,894$2.79M0.2%+7,809+9,187.1%AddedHolders
Q4 202185$25.0K<0.1%+48+129.7%AddedHolders
Q3 202137$10.0K<0.1%+37NewHolders