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Livermore
Livermore
ZHEN

Mattern Capital Management, LLC

SEC CIK
0001803227
Latest filing
Jul 24, 2026

GWW holding history

W.W. Grainger, Inc. in every 13F filed by Mattern Capital Management, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

GWW overviewAll 13F holders of GWWFull Q2 2026 holdings

Shares (Q2 2026)
11,817
Value
$16.1M
% of portfolio
1.9%
Quarters held
22
Since Q1 2021
Holdings of GWW by Mattern Capital Management, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202611,817$16.1M1.9%−191−1.6%ReducedHolders
Q1 202612,008$13.1M1.6%−226−1.8%ReducedHolders
Q4 202512,234$12.3M1.5%+563+4.8%AddedHolders
Q3 202511,671$11.1M1.3%−141−1.2%ReducedHolders
Q2 202511,812$12.3M1.5%+64+0.5%AddedHolders
Q1 202511,748$11.6M1.5%−713−5.7%ReducedHolders
Q4 202412,461$13.1M1.7%−163−1.3%ReducedHolders
Q3 202412,624$13.1M1.7%−89−0.7%ReducedHolders
Q2 202412,713$11.5M1.6%−161−1.3%ReducedHolders
Q1 202412,874$13.1M1.8%−1,175−8.4%ReducedHolders
Q4 202314,049$11.6M1.7%−89−0.6%ReducedHolders
Q3 202314,138$9.78M1.6%+491+3.6%AddedHolders
Q2 202313,647$10.8M1.7%+284+2.1%AddedHolders
Q1 202313,363$9.20M1.6%+98+0.7%AddedHolders
Q4 202213,265$7.38M1.4%−914−6.4%ReducedHolders
Q3 202214,179$6.94M1.4%−385−2.6%ReducedHolders
Q2 202214,564$6.62M1.3%−477−3.2%ReducedHolders
Q1 202215,041$7.76M1.4%+154+1.0%AddedHolders
Q4 202114,887$7.71M1.3%−87−0.6%ReducedHolders
Q3 202114,974$5.89M1.2%+270+1.8%AddedHolders
Q2 202114,704$6.44M1.3%+328+2.3%AddedHolders
Q1 202114,376$5.76M1.2%––Holders

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