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Livermore
Livermore
ZHEN

Gardner Russo & Quinn

Superinvestor

Gardner Russo & Quinn LLC

SEC CIK
0000860643
Manager
Tom Russo
Style
Quality, Value
Latest filing
Aug 13, 2026

MRK holding history

Merck & Co., Inc. in every 13F filed by Gardner Russo & Quinn, 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)
1,642
Value
$211.0K
% of portfolio
<0.1%
Quarters held
19
Since Q1 2021
Holdings of MRK by Gardner Russo & Quinn, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20261,642$211.0K<0.1%−499−23.3%ReducedHolders
Q1 20262,141$257.5K<0.1%+2,141NewHolders
Q2 20250$00.0%−2,763−100.0%Sold outHolders
Q1 20252,763$248.0K<0.1%−163−5.6%ReducedHolders
Q4 20242,926$291.1K<0.1%−161−5.2%ReducedHolders
Q3 20243,087$350.5K<0.1%−359−10.4%ReducedHolders
Q2 20243,446$426.6K<0.1%−67−1.9%ReducedHolders
Q1 20243,513$463.6K<0.1%−293−7.7%ReducedHolders
Q4 20233,806$415.0K<0.1%−36−0.9%ReducedHolders
Q3 20233,842$395.5K<0.1%−118−3.0%ReducedHolders
Q2 20233,960$456.9K<0.1%+129+3.4%AddedHolders
Q1 20233,831$407.6K<0.1%+158+4.3%AddedHolders
Q4 20223,673$407.5K<0.1%−185−4.8%ReducedHolders
Q3 20223,858$332.0K<0.1%−51−1.3%ReducedHolders
Q2 20223,909$356.0K<0.1%+10+0.3%AddedHolders
Q1 20223,899$320.0K<0.1%+11+0.3%AddedHolders
Q4 20213,888$298.0K<0.1%+10+0.3%AddedHolders
Q3 20213,878$291.0K<0.1%+10+0.3%AddedHolders
Q2 20213,868$301.0K<0.1%+10+0.3%AddedHolders
Q1 20213,858$297.0K<0.1%––Holders

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