Penbrook Management’s Automatic Data Processing ADP Stock Holding History

Penbrook Management’s Portfolio ADP Stock Details ADP Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.28M	Hold	6,300	–	–	0.97%	30
2025 Q4	$1.62M	Hold	6,300	–	–	1.12%	20
2025 Q3	$1.85M	Sell	6,300 -6,300	-50%	-$1.9M	1.29%	16
2025 Q2	$3.87M	Buy	12,600 +6,300	+100%	+$1.94M	1.46%	11
2025 Q1	$1.92M	Hold	6,300	–	–	1.46%	11
2024 Q4	$1.84M	Hold	6,300	–	–	1.26%	12
2024 Q3	$1.74M	Hold	6,300	–	–	1.13%	15
2024 Q2	$1.5M	Hold	6,300	–	–	0.92%	22
2024 Q1	$1.57M	Hold	6,300	–	–	0.98%	19
2023 Q4	$1.47M	Hold	6,300	–	–	0.99%	21
2023 Q3	$1.52M	Hold	6,300	–	–	1.11%	18
2023 Q2	$1.38M	Sell	6,300 -38	-0.6%	-$8.19K	1%	20
2023 Q1	$1.41M	Hold	6,338	–	–	1.08%	20
2022 Q4	$1.51M	Sell	6,338 -1,000	-14%	-$246K	1.29%	18
2022 Q3	$1.66M	Buy	7,338 +38	+0.5%	+$8.96K	1.43%	17
2022 Q2	$1.53M	Hold	7,300	–	–	1.21%	23
2022 Q1	$1.66M	Sell	7,300 -100	-1%	-$21.4K	1.08%	23
2021 Q4	$1.82M	Sell	7,400 -100	-1%	-$22.6K	1.1%	23
2021 Q3	$1.5M	Sell	7,500 -128	-2%	-$26.4K	0.93%	37
2021 Q2	$1.51M	Hold	7,628	–	–	0.91%	37
2021 Q1	$1.44M	Hold	7,628	–	–	1.03%	32
2020 Q4	$1.34M	Hold	7,628	–	–	1.04%	33
2020 Q3	$1.06M	Hold	7,628	–	–	0.92%	30
2020 Q2	$1.14M	Hold	7,628	–	–	1.12%	26
2020 Q1	$1.04M	Hold	7,628	–	–	1.34%	19
2019 Q4	$1.3M	Hold	7,628	–	–	1.27%	25
2019 Q3	$1.23M	Hold	7,628	–	–	1.34%	21
2019 Q2	$1.26M	Hold	7,628	–	–	1.35%	18
2019 Q1	$1.22M	Hold	7,628	–	–	1.27%	21
2018 Q4	$1M	Hold	7,628	–	–	1.14%	28
2018 Q3	$1.15M	Hold	7,628	–	–	1.1%	30
2018 Q2	$1.02M	Hold	7,628	–	–	0.98%	36
2018 Q1	$866K	Hold	7,628	–	–	0.87%	40
2017 Q4	$894K	Buy	+7,628	New	+$872K	0.8%	38
2016 Q3	$884K	Hold	10,028	–	–	0.95%	39
2016 Q2	$921K	Hold	10,028	–	–	1.02%	36
2016 Q1	$900K	Sell	10,028 -1,800	-15%	-$151K	0.99%	39
2015 Q4	$1M	Sell	11,828 -200	-2%	-$17.2K	1.03%	36
2015 Q3	$967K	Hold	12,028	–	–	1.02%	35
2015 Q2	$965K	Sell	12,028 -100	-0.8%	-$8.53K	0.92%	45
2015 Q1	$1.04M	Sell	12,128 -100	-0.8%	-$8.61K	0.92%	45
2014 Q4	$1.02M	Sell	12,228 -902	-7%	-$73.1K	0.92%	41
2014 Q3	$958K	Hold	13,130	–	–	0.88%	45
2014 Q2	$914K	Sell	13,130 -13,131	-50%	-$896K	0.81%	50
2014 Q1	$1.82M	Buy	26,261 +13,131	+100%	+$895K	0.87%	47
2013 Q4	$931K	Buy	+13,130	New	+$883K	0.9%	44

Other funds holding ADP

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return

Penbrook Management's ADP Position: Q1 2026 in Review

Penbrook Management held its Automatic Data Processing (ADP) position steady in Q1 2026 at 6,300 shares worth $1.28M. The position accounts for 0.97% of the portfolio, ranked #30.

Penbrook Management first reported a position in ADP in Q4 2013 and has held it in 46 quarters since. The position peaked at $3.87M in Q2 2025. 2,263 funds tracked by Wall St. Rank hold ADP as of Q1 2026.

Penbrook Management held 6,300 shares of Automatic Data Processing worth $1.28M as of Q1 2026.
Penbrook Management left its Automatic Data Processing share count unchanged in Q1 2026.
Automatic Data Processing made up 0.97% of Penbrook Management's portfolio in Q1 2026, its #30 holding.
Penbrook Management first reported a position in Automatic Data Processing in Q4 2013 and has held it in 46 quarters since.
Penbrook Management's Automatic Data Processing position peaked at $3.87M in Q2 2025.
2,263 funds tracked by Wall St. Rank held Automatic Data Processing as of Q1 2026.

Based on Penbrook Management's 13F filing for Q1 2026, filed 21 Apr 2026.