Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionCharter Trust Co
Latest Disclosed Ownership45,316 shares
Latest Disclosed Value $ 9,207,305
Charter Trust Co reports 2.32% decrease in ownership of ADP / Automatic Data Processing, Inc.

On April 17, 2026 - Charter Trust Co filed a 13F-HR form disclosing ownership of 45,316 shares of Automatic Data Processing, Inc. (US:ADP) valued at $9,207,305 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 46,393 shares of Automatic Data Processing, Inc.. This represents a change in shares of -2.32% during the quarter. The current value of the position is $10,482,044 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-17 2026-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 45,316 -1,077 -2.32 9,207 -22.84 0.5387
2026-01-22 2025-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 46,393 -525 -1.12 11,934 -13.34 0.6897
2025-10-15 2025-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 46,918 -220 -0.47 13,770 -5.28 0.8265
2025-07-23 2025-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 47,138 -41 -0.09 14,537 0.85 0.9302
2025-04-16 2025-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 47,179 5 0.01 14,415 4.38 0.9549
2025-01-13 2024-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 47,174 3 0.01 13,809 5.79 0.9045
2024-10-16 2024-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 47,171 -1,031 -2.14 13,054 13.46 0.8325
2024-07-17 2024-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 48,202 -1,155 -2.34 11,505 -6.66 0.7615
2024-04-24 2024-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 49,357 -1,203 -2.38 12,326 4.65 0.8232
2024-01-17 2023-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 50,560 -2,041 -3.88 11,779 -6.92 0.8781
2023-11-28 2023-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 52,601 -1,985 -3.64 12,655 5.48 1.0077
2023-08-09 2023-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 54,586 -2,733 -4.77 11,997 -5.98 0.9199
2023-04-24 2023-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 57,319 -1,162 -1.99 12,761 -8.65 1.0159
2023-06-09 2022-12-31 13F/A-1 AUTOMATIC DATA PROCESSING COM 053015103 58,481 -1,391 -2.32 13,969 3.14 1.1155
2023-01-19 2022-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 58,481 -1,391 14 0.0011
2022-10-24 2022-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 59,872 52 0.09 13,543 7.78 1.1669
2022-08-12 2022-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 59,820 8,655 16.92 12,565 7.93 1.0054
2022-04-14 2022-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 51,165 -666 -1.28 11,642 -8.91 1.0441
2022-01-28 2021-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 51,831 98 0.19 12,781 23.58 1.0851
2021-11-15 2021-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 51,733 -1,400 -2.63 10,342 -2.01 0.9673
2021-08-11 2021-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 53,133 -344 -0.64 10,554 4.72 0.9810
2021-05-06 2021-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 53,477 -1,903 -3.44 10,078 3.28 0.9805
2021-02-09 2020-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 55,380 -1,115 -1.97 9,758 23.82 0.9777
2020-11-02 2020-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 56,495 -25,448 -31.06 7,881 -35.41 0.8709
2020-08-04 2020-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 81,943 202 0.25 12,201 9.21 1.4105
2020-05-14 2020-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 81,741 3,433 4.38 11,172 -16.33 1.5065
2020-02-11 2019-12-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 78,308 12,649 19.26 13,352 25.97 1.4609
2019-11-07 2019-09-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 65,659 13 0.02 10,599 -2.34 1.2311
2019-08-01 2019-06-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 65,646 3,209 5.14 10,853 8.81 1.2623
2019-05-10 2019-03-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 62,437 496 0.80 9,974 22.80 1.1958
2019-02-13 2018-12-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 61,941 -4,043 -6.13 8,122 -18.30 1.0802
2018-11-14 2018-09-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 65,984 -328 -0.49 9,941 11.76 1.1282
2018-08-10 2018-06-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 66,312 -1,881 -2.76 8,895 14.94 1.0723
2018-04-06 2018-03-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 68,193 -1,312 -1.89 7,739 -5.00 0.9482
2018-01-17 2017-12-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 69,505 -785 -1.12 8,146 6.01 0.9483
2017-10-11 2017-09-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 70,290 -2,232 -3.08 7,684 3.40 0.9295
2017-07-10 2017-06-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 72,522 -3,748 -4.91 7,431 -4.84 0.8916
2017-04-07 2017-03-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 76,270 36 0.05 7,809 -0.34 0.9126
2017-01-19 2016-12-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 76,234 1,695 2.27 7,836 19.18 0.8647
2016-10-14 2016-09-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 74,539 -1,149 -1.52 6,575 -5.44 0.7444
2016-07-19 2016-06-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 75,688 5,173 7.34 6,953 9.91 0.8084
2016-04-08 2016-03-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 70,515 -214 -0.30 6,326 5.57 0.7715
2016-01-11 2015-12-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 70,729 2,337 3.42 5,992 9.02 0.7529
2015-10-16 2015-09-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 68,392 -590 -0.86 5,496 -0.69 0.7290
2015-07-20 2015-06-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 68,982 -1,857 -2.62 5,534 -8.77 0.6726
2015-04-07 2015-03-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 70,839 -654 -0.91 6,066 1.76 0.7354
2015-01-14 2014-12-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 71,493 -395 -0.55 5,961 -0.18 0.7444
2014-10-21 2014-09-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 71,888 -106 -0.15 5,972 4.64 0.7663
2014-07-09 2014-06-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 71,994 -419 -0.58 5,707 2.02 0.7150
2014-04-28 2014-03-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 72,413 -275 -0.38 5,594 -4.75 0.7188
2014-01-15 2013-12-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 72,688 -1,175 -1.59 5,873 9.84 0.7629
2013-10-23 2013-09-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 73,863 -1,375 -1.83 5,347 3.20 0.7496
2013-07-25 2013-06-30 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 75,238 10,701 16.58 5,181 23.45 0.7498
2013-05-28 2013-03-31 13F AUTOMATIC DATA PROCESSING COMMON STOCK 053015103 64,537 64,537 4,197 0.6409
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.