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Livermore
Livermore
ZHEN

Callahan Advisors, LLC

SEC CIK
0001395055
Latest filing
Aug 3, 2026

MRK holding history

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

MRK overviewAll 13F holders of MRKFull Q2 2026 holdings

Shares (Q2 2026)
22,700
Value
$2.92M
% of portfolio
0.2%
Quarters held
22
Since Q1 2021
Holdings of MRK by Callahan Advisors, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202622,700$2.92M0.2%−702−3.0%ReducedHolders
Q1 202623,402$2.82M0.2%00.0%UnchangedHolders
Q4 202523,402$2.46M0.2%−515−2.2%ReducedHolders
Q3 202523,917$2.01M0.2%−2,173−8.3%ReducedHolders
Q2 202526,090$2.07M0.2%−648−2.4%ReducedHolders
Q1 202526,738$2.40M0.2%−898−3.2%ReducedHolders
Q4 202427,636$2.75M0.3%−2,449−8.1%ReducedHolders
Q3 202430,085$3.42M0.3%−93−0.3%ReducedHolders
Q2 202430,178$3.74M0.4%−410−1.3%ReducedHolders
Q1 202430,588$4.04M0.4%+70.0%AddedHolders
Q4 202330,581$3.33M0.4%+80.0%AddedHolders
Q3 202330,573$3.15M0.4%+1,577+5.4%AddedHolders
Q2 202328,996$3.35M0.4%−328−1.1%ReducedHolders
Q1 202329,324$3.12M0.4%+80.0%AddedHolders
Q4 202229,316$3.25M0.4%+90.0%AddedHolders
Q3 202229,307$2.52M0.4%−20.0%ReducedHolders
Q2 202229,309$2.67M0.4%−110.0%ReducedHolders
Q1 202229,320$2.41M0.3%+3,872+15.2%AddedHolders
Q4 202125,448$1.95M0.2%+2,009+8.6%AddedHolders
Q3 202123,439$1.76M0.2%+17,931+325.5%AddedHolders
Q2 20215,508$428.0K0.1%+1,854+50.7%AddedHolders
Q1 20213,654$282.0K<0.1%––Holders

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