Skip to main content
Livermore
Livermore
ZHEN

Penbrook Management LLC

SEC CIK
0001381055
Latest filing
Jul 23, 2026

ADP holding history

Automatic Data Processing 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.

ADP overviewAll 13F holders of ADPFull Q2 2026 holdings

Shares (Q2 2026)
6,300
Value
$1.41M
% of portfolio
0.9%
Quarters held
22
Since Q1 2021
Holdings of ADP by Penbrook Management LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20266,300$1.41M0.9%00.0%UnchangedHolders
Q1 20266,300$1.28M1.0%00.0%UnchangedHolders
Q4 20256,300$1.62M1.1%00.0%UnchangedHolders
Q3 20256,300$1.85M1.3%00.0%UnchangedHolders
Q2 20256,300$1.94M1.5%00.0%UnchangedHolders
Q1 20256,300$1.92M1.5%00.0%UnchangedHolders
Q4 20246,300$1.84M1.3%00.0%UnchangedHolders
Q3 20246,300$1.74M1.1%00.0%UnchangedHolders
Q2 20246,300$1.50M0.9%00.0%UnchangedHolders
Q1 20246,300$1.57M1.0%00.0%UnchangedHolders
Q4 20236,300$1.47M1.0%00.0%UnchangedHolders
Q3 20236,300$1.52M1.1%00.0%UnchangedHolders
Q2 20236,300$1.38M1.0%−38−0.6%ReducedHolders
Q1 20236,338$1.41M1.1%00.0%UnchangedHolders
Q4 20226,338$1.51M1.3%−1,000−13.6%ReducedHolders
Q3 20227,338$1.66M1.4%+38+0.5%AddedHolders
Q2 20227,300$1.53M1.2%00.0%UnchangedHolders
Q1 20227,300$1.66M1.1%−100−1.4%ReducedHolders
Q4 20217,400$1.82M1.1%−100−1.3%ReducedHolders
Q3 20217,500$1.50M0.9%−128−1.7%ReducedHolders
Q2 20217,628$1.51M1.0%00.0%UnchangedHolders
Q1 20217,628$1.44M1.0%––Holders

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