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Penbrook Management LLC

SEC CIK
0001381055
Latest filing
Jul 23, 2026

NPKI holding history

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

NPKI overviewAll 13F holders of NPKIFull Q2 2026 holdings

Shares (Q2 2026)
67,825
Value
$1.08M
% of portfolio
0.7%
Quarters held
11
Since Q4 2023
Holdings of NPKI by Penbrook Management LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202667,825$1.08M0.7%+575+0.9%AddedHolders
Q1 202667,250$974.5K0.7%00.0%UnchangedHolders
Q4 202567,250$801.6K0.6%−1,335−1.9%ReducedHolders
Q3 202568,585$775.7K0.5%00.0%UnchangedHolders
Q2 202568,585$583.7K0.4%−12,825−15.8%ReducedHolders
Q1 202581,410$473.0K0.4%−575−0.7%ReducedHolders
Q4 202481,985$628.8K0.4%00.0%UnchangedHolders
Q3 202481,985$568.2K0.4%−775−0.9%ReducedHolders
Q2 202482,760$687.7K0.4%−2,675−3.1%ReducedHolders
Q1 202485,435$616.8K0.4%−1,400−1.6%ReducedHolders
Q4 202386,835$576.6K0.4%+86,835NewHolders