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Livermore
Livermore
ZHEN

Mattern Capital Management, LLC

SEC CIK
0001803227
Latest filing
Jul 24, 2026

RTX holding history

RTX Corp 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.

RTX overviewAll 13F holders of RTXFull Q2 2026 holdings

Shares (Q2 2026)
3,142
Value
$596.1K
% of portfolio
0.1%
Quarters held
22
Since Q1 2021
Holdings of RTX by Mattern Capital Management, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20263,142$596.1K0.1%−2−0.1%ReducedHolders
Q1 20263,144$606.5K0.1%−82−2.5%ReducedHolders
Q4 20253,226$591.6K0.1%−71−2.2%ReducedHolders
Q3 20253,297$551.7K0.1%−120−3.5%ReducedHolders
Q2 20253,417$498.9K0.1%+493+16.9%AddedHolders
Q1 20252,924$387.3K<0.1%−2−0.1%ReducedHolders
Q4 20242,926$338.6K<0.1%−405−12.2%ReducedHolders
Q3 20243,331$403.6K0.1%−557−14.3%ReducedHolders
Q2 20243,888$390.3K0.1%−1,956−33.5%ReducedHolders
Q1 20245,844$570.0K0.1%−14,864−71.8%ReducedHolders
Q4 202320,708$1.74M0.3%−70,285−77.2%ReducedHolders
Q3 202390,993$6.55M1.1%+11,787+14.9%AddedHolders
Q2 202379,206$7.76M1.3%+1,459+1.9%AddedHolders
Q1 202377,747$7.61M1.3%+1,176+1.5%AddedHolders
Q4 202276,571$7.73M1.4%−1,457−1.9%ReducedHolders
Q3 202278,028$6.39M1.3%−535−0.7%ReducedHolders
Q2 202278,563$7.55M1.5%−4,634−5.6%ReducedHolders
Q1 202283,197$8.24M1.5%+914+1.1%AddedHolders
Q4 202182,283$7.08M1.2%−851−1.0%ReducedHolders
Q3 202183,134$7.15M1.4%+517+0.6%AddedHolders
Q2 202182,617$7.05M1.4%+2,858+3.6%AddedHolders
Q1 202179,759$6.16M1.3%––Holders

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