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Mattern Wealth Management LLC

SEC CIK
0001802376
Latest filing
Jul 23, 2026

COST holding history

Costco Wholesale Corp in every 13F filed by Mattern Wealth Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

COST overviewAll 13F holders of COSTFull Q2 2026 holdings

Shares (Q2 2026)
6,258
Value
$5.85M
% of portfolio
1.0%
Quarters held
22
Since Q1 2021
Holdings of COST by Mattern Wealth Management LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20266,258$5.85M1.0%+53+0.9%AddedHolders
Q1 20266,205$6.18M1.2%+130+2.1%AddedHolders
Q4 20256,075$5.24M1.0%+149+2.5%AddedHolders
Q3 20255,926$5.49M1.1%−160−2.6%ReducedHolders
Q2 20256,086$6.02M1.3%+167+2.8%AddedHolders
Q1 20255,919$5.60M1.2%+179+3.1%AddedHolders
Q4 20245,740$5.26M1.2%−321−5.3%ReducedHolders
Q3 20246,061$5.37M1.2%+105+1.8%AddedHolders
Q2 20245,956$5.06M1.2%−231−3.7%ReducedHolders
Q1 20246,187$4.53M1.1%−22−0.4%ReducedHolders
Q4 20236,209$4.10M1.1%+174+2.9%AddedHolders
Q3 20236,035$3.41M1.0%+337+5.9%AddedHolders
Q2 20235,698$3.07M0.9%+562+10.9%AddedHolders
Q1 20235,136$2.55M0.8%−186−3.5%ReducedHolders
Q4 20225,322$2.43M1.0%+161+3.1%AddedHolders
Q3 20225,161$2.44M1.0%+54+1.1%AddedHolders
Q2 20225,107$2.45M1.0%+109+2.2%AddedHolders
Q1 20224,998$2.88M0.9%+7+0.1%AddedHolders
Q4 20214,991$2.83M0.8%−216−4.1%ReducedHolders
Q3 20215,207$2.34M0.8%+103+2.0%AddedHolders
Q2 20215,104$2.10M0.7%−143−2.7%ReducedHolders
Q1 20215,247$1.85M0.7%––Holders

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