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Livermore
Livermore
ZHEN

S&CO Inc

SEC CIK
0001082461
Latest filing
Aug 6, 2026

MRK holding history

Merck & Co., Inc. in every 13F filed by S&CO Inc, 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)
425,528
Value
$54.7M
% of portfolio
3.2%
Quarters held
22
Since Q1 2021
Holdings of MRK by S&CO Inc, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026425,528$54.7M3.2%00.0%UnchangedHolders
Q1 2026425,528$51.2M3.2%−30.0%ReducedHolders
Q4 2025425,531$44.8M2.8%+3,000+0.7%AddedHolders
Q3 2025422,531$35.5M2.2%−3,340−0.8%ReducedHolders
Q2 2025425,871$33.7M2.2%−712−0.2%ReducedHolders
Q1 2025426,583$38.3M2.6%+23,216+5.8%AddedHolders
Q4 2024403,367$40.1M2.7%+550.0%AddedHolders
Q3 2024403,312$45.8M3.0%+4,200+1.1%AddedHolders
Q2 2024399,112$49.4M3.4%−420−0.1%ReducedHolders
Q1 2024399,532$52.7M3.7%00.0%UnchangedHolders
Q4 2023399,532$43.6M3.3%+2,645+0.7%AddedHolders
Q3 2023396,887$40.9M3.4%−335−0.1%ReducedHolders
Q2 2023397,222$45.8M3.7%−1,405−0.4%ReducedHolders
Q1 2023398,627$42.4M3.6%00.0%UnchangedHolders
Q4 2022398,627$44.2M3.9%−325−0.1%ReducedHolders
Q3 2022398,952$34.4M3.1%−385−0.1%ReducedHolders
Q2 2022399,337$36.4M3.1%−6,271−1.5%ReducedHolders
Q1 2022405,608$33.3M2.3%+9,635+2.4%AddedHolders
Q4 2021395,973$30.3M2.1%+1,180+0.3%AddedHolders
Q3 2021394,793$29.7M2.3%+365+0.1%AddedHolders
Q2 2021394,428$30.7M2.4%+507+0.1%AddedHolders
Q1 2021393,921$30.4M2.6%––Holders

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