Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionAtlas Brown,Inc.
Latest Disclosed Ownership8,183 shares
Latest Disclosed Value $ 1,662,622
Atlas Brown,Inc. reports 0.90% decrease in ownership of ADP / Automatic Data Processing, Inc.

On April 17, 2026 - Atlas Brown,Inc. filed a 13F-HR form disclosing ownership of 8,183 shares of Automatic Data Processing, Inc. (US:ADP) valued at $1,662,622 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 8,257 shares of Automatic Data Processing, Inc.. This represents a change in shares of -0.90% during the quarter. The current value of the position is $1,892,810 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 INC COM Stock 053015103 8,183 -74 -0.90 1,663 -21.71 0.4968
2026-01-09 2025-12-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,257 -296 -3.46 2,124 -15.42 0.6314
2025-10-17 2025-09-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,553 15 0.18 2,510 -4.67 0.7420
2025-07-08 2025-06-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,538 -2 -0.02 2,633 0.92 0.8453
2025-04-08 2025-03-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,540 8 0.09 2,609 4.49 0.9155
2025-01-10 2024-12-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,532 7 0.08 2,498 5.85 0.8542
2024-10-18 2024-09-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,525 5 0.06 2,359 16.04 0.8172
2024-07-23 2024-06-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,520 11 0.13 2,034 -4.33 0.7292
2024-04-08 2024-03-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,509 3 0.04 2,125 7.27 0.7736
2024-01-18 2023-12-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,506 0 0.00 1,982 -3.18 0.8213
2023-10-17 2023-09-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,506 0 0.00 2,046 9.47 0.9334
2023-07-18 2023-06-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,506 0 0.00 1,870 -1.27 0.8225
2023-04-21 2023-03-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,506 0 0.00 1,894 -6.79 0.8729
2023-01-05 2022-12-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,506 -20 -0.23 2,032 5.34 0.9984
2022-10-06 2022-09-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,526 10 0.12 1,928 7.77 0.9823
2022-07-15 2022-06-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,516 0 0.00 1,789 -7.69 0.8455
2022-04-14 2022-03-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,516 -50 -0.58 1,938 -8.24 0.7903
2022-01-18 2021-12-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,566 0 0.00 2,112 23.29 0.8182
2021-10-14 2021-09-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,566 -100 -1.15 1,713 -0.46 0.7445
2021-07-19 2021-06-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,666 0 0.00 1,721 5.39 0.7438
2021-04-13 2021-03-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,666 0 0.00 1,633 6.94 0.7738
2021-01-19 2020-12-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,666 0 0.00 1,527 26.30 0.7897
2020-10-15 2020-09-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,666 0 0.00 1,209 -6.28 0.7151
2020-07-21 2020-06-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,666 0 0.00 1,290 8.95 0.8183
2020-04-16 2020-03-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,666 -6 -0.07 1,184 -19.95 0.9251
2020-01-14 2019-12-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,672 -94 -1.07 1,479 4.52 0.9250
2019-10-29 2019-09-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,766 -200 -2.23 1,415 -4.52 1.0104
2019-07-24 2019-06-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 8,966 -210 -2.29 1,482 1.09 1.0240
2019-04-12 2019-03-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 9,176 -300 -3.17 1,466 18.04 1.0383
2019-01-28 2018-12-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 9,476 -2,000 -17.43 1,242 -28.17 0.9578
2018-10-26 2018-09-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 11,476 -3,500 -23.37 1,729 -15.08 1.0618
2018-07-11 2018-06-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 14,976 0 0.00 2,036 19.84 0.4747
2018-04-17 2018-03-31 13F AUTOMATIC DATA PROCESSING INC COM COM 053015103 14,976 -200 -1.32 1,699 -7.36 0.3091
2018-01-25 2017-12-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 15,176 -1,206 -7.36 1,834 2.40 0.3274
2017-10-12 2017-09-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 16,382 2,096 14.67 1,791 22.34 0.3803
2017-07-18 2017-06-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 14,286 -100 -0.70 1,464 -0.61 1.2816
2017-04-06 2017-03-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 14,386 -320 -2.18 1,473 13.57 1.1626
2017-02-01 2016-12-31 13F AUTOMATIC DATA PROCESSING INC COM COM 053015103 14,706 0 0.00 1,297 0.00 0.5342
2016-10-19 2016-09-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 14,706 -200 -1.34 1,297 -5.26 0.5342
2016-07-28 2016-06-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 14,906 -200 -1.32 1,369 1.03 0.5546
2016-04-11 2016-03-31 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 15,106 -500 -3.20 1,355 7.97 0.5671
2016-01-28 2015-12-31 13F AUTOMATIC DATA PROCESSING Stock 053015103 15,606 0 0.00 1,255 0.08 0.7987
2015-11-05 2015-09-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 15,606 0 0.00 1,254 -1.49 0.5397
2015-08-11 2015-06-30 13F AUTOMATIC DATA PROCESSING INC COM Stock 053015103 15,606 -700 -4.29 1,273 -8.81 0.4950
2015-04-20 2015-03-31 13F Automatic Data Processing COM 053015103 16,306 16,306 0.00 1,396 0.3751
2015-01-30 2014-12-31 13F Automatic Data Processing COM 053015103 0 -16,306 -100.00 0 -100.00
2014-11-12 2014-09-30 13F Automatic Data Processing COM 053015103 16,306 -320 -1.92 1,355 2.81 0.5024
2014-08-19 2014-06-30 13F Automatic Data Processing COM 053015103 16,626 0 0.00 1,318 2.57 0.6510
2014-05-07 2014-03-31 13F Automatic Data Processing COM 053015103 16,626 -351 -2.07 1,285 -6.34 0.6924
2014-01-24 2013-12-31 13F Automatic Data Processing COM 053015103 16,977 -1,214 -6.67 1,372 4.18 0.9604
2013-10-31 2013-09-30 13F Automatic Data Processing COM 053015103 18,191 -1,405 -7.17 1,317 -2.37 0.9869
2013-08-21 2013-06-30 13F Automatic Data Processing COM 053015103 19,596 19,596 1,349 0.2881
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.