Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionDiversified Trust Co
Latest Disclosed Ownership14,258 shares
Latest Disclosed Value $ 2,896,940
Diversified Trust Co reports 7.00% decrease in ownership of ADP / Automatic Data Processing, Inc.

On April 16, 2026 - Diversified Trust Co filed a 13F-HR form disclosing ownership of 14,258 shares of Automatic Data Processing, Inc. (US:ADP) valued at $2,896,940 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 15,332 shares of Automatic Data Processing, Inc.. This represents a change in shares of -7.00% during the quarter. The current value of the position is $3,247,260 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)
2026-04-16 2026-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 14,258 -1,074 -7.00 2,897 -26.55 0.0537
2026-01-09 2025-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 15,332 -2,753 -15.22 3,944 -25.70 0.0726
2025-10-20 2025-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 18,085 8,628 91.23 5,308 82.00 0.1060
2025-07-11 2025-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 9,457 -203 -2.10 2,917 -1.19 0.0647
2025-04-24 2025-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 9,660 -2,984 -23.60 2,951 -20.26 0.0730
2025-01-07 2024-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 12,644 93 0.74 3,701 6.56 0.0902
2024-10-07 2024-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 12,551 1,683 15.49 3,473 33.89 0.0875
2024-07-16 2024-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 10,868 1,193 12.33 2,594 7.37 0.0733
2024-04-18 2024-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 9,675 1,240 14.70 2,416 22.95 0.0728
2024-01-08 2023-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,435 179 2.17 1,965 -1.06 0.0661
2023-11-17 2023-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,256 1,693 25.80 1,986 37.73 0.0751
2023-07-18 2023-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 6,563 1,105 20.25 1,442 18.68 0.0526
2023-04-07 2023-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,458 615 12.70 1,215 121,400.00 0.0473
2023-01-17 2022-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 4,843 -685 -12.39 1 -99.92 0.0482
2022-10-14 2022-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,528 245 4.64 1,250 12.61 0.0566
2022-07-12 2022-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,283 1,331 33.68 1,110 23.47 0.0465
2022-04-07 2022-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 3,952 1,038 35.62 899 25.03 0.0314
2022-01-13 2021-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 2,914 1,042 55.66 719 92.25 0.0237
2022-01-13 2021-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,872 1,872 374 0.0134
2021-07-20 2021-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 0 -4,454 -100.00 0 -100.00
2021-05-10 2021-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 4,454 -1,027 -18.74 839 -13.15 0.0323
2021-01-08 2020-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,481 333 6.47 966 34.54 0.0392
2020-10-15 2020-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,148 1,725 50.39 718 40.78 0.0332
2020-07-07 2020-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 3,423 3,423 510 0.0258
2020-04-10 2020-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 0 -3,118 -100.00 0 -100.00
2020-01-09 2019-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 3,118 -3,530 -53.10 532 -0.93 0.0238
2014-02-10 2013-12-31 13F AUTOMATIC DATA PROCESSING Common 053015103 6,648 -2,028 -23.37 537 -14.49 0.0548
2013-10-18 2013-09-30 13F AUTOMATIC DATA PROCESSING Common 053015103 8,676 8,676 628 0.0664
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.