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Livermore
Livermore
ZHEN

Harbor Advisory Corp

SEC CIK
0001100710
Latest filing
Aug 13, 2026

MRK holding history

Merck & Co., Inc. in every 13F filed by Harbor Advisory Corp, 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)
23,912
Value
$3.07M
% of portfolio
0.8%
Quarters held
22
Since Q1 2021
Holdings of MRK by Harbor Advisory Corp, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202623,912$3.07M0.8%00.0%UnchangedHolders
Q1 202623,912$2.88M0.9%−537−2.2%ReducedHolders
Q4 202524,449$2.57M0.8%−1,851−7.0%ReducedHolders
Q3 202526,300$2.21M0.7%−50.0%ReducedHolders
Q2 202526,305$2.08M0.7%−2,231−7.8%ReducedHolders
Q1 202528,536$2.56M0.9%00.0%UnchangedHolders
Q4 202428,536$2.84M0.9%00.0%UnchangedHolders
Q3 202428,536$3.24M1.1%−35−0.1%ReducedHolders
Q2 202428,571$3.54M1.2%−198−0.7%ReducedHolders
Q1 202428,769$3.80M1.3%−188−0.6%ReducedHolders
Q4 202328,957$3.16M1.1%−2,522−8.0%ReducedHolders
Q3 202331,479$3.24M1.2%−207−0.7%ReducedHolders
Q2 202331,686$3.66M1.3%−547−1.7%ReducedHolders
Q1 202332,233$3.43M1.3%−355−1.1%ReducedHolders
Q4 202232,588$3.62M1.5%00.0%UnchangedHolders
Q3 202232,588$2.81M1.3%+604+1.9%AddedHolders
Q2 202231,984$2.92M1.3%+426+1.3%AddedHolders
Q1 202231,558$2.59M1.0%00.0%UnchangedHolders
Q4 202131,558$2.42M1.0%00.0%UnchangedHolders
Q3 202131,558$2.37M1.0%+500+1.6%AddedHolders
Q2 202131,058$2.42M1.1%+20,360+190.3%AddedHolders
Q1 202110,698$825.0K0.3%––Holders

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