Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionBroderick Brian C
Latest Disclosed Ownership55,341 shares
Latest Disclosed Value $ 11,244,184
Broderick Brian C reports 5.82% increase in ownership of ADP / Automatic Data Processing, Inc.

On May 7, 2026 - Broderick Brian C filed a 13F-HR form disclosing ownership of 55,341 shares of Automatic Data Processing, Inc. (US:ADP) valued at $11,244,184 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 52,298 shares of Automatic Data Processing, Inc.. This represents a change in shares of 5.82% during the quarter. The current value of the position is $12,800,927 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)
2026-05-07 2026-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 55,341 3,043 5.82 11,244 -16.41 2.0732
2026-02-13 2025-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 52,298 -31 -0.06 13,453 -12.41 2.5430
2025-11-10 2025-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 52,329 -1,153 -2.16 15,359 -6.88 2.9173
2025-07-23 2025-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 53,482 -3,897 -6.79 16,494 -5.92 3.2608
2025-04-18 2025-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 57,379 -821 -1.41 17,531 2.91 3.5711
2025-02-13 2024-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 58,200 1,082 1.89 17,037 7.78 3.3411
2024-11-06 2024-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 57,118 -898 -1.55 15,806 14.15 3.0943
2024-08-12 2024-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 58,016 -784 -1.33 13,848 -5.70 2.8269
2024-05-06 2024-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 58,800 1,927 3.39 14,685 10.83 3.1364
2024-02-14 2023-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 56,873 1,306 2.35 13,250 -0.89 3.3070
2023-11-14 2023-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 55,567 148 0.27 13,368 9.75 3.6834
2023-08-11 2023-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 55,419 -155 -0.28 12,181 -1.55 3.2137
2023-05-10 2023-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 55,574 -618 -1.10 12,372 -7.82 3.4731
2023-02-09 2022-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 56,192 -162 -0.29 13,422 5.30 3.9816
2022-11-08 2022-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 56,354 349 0.62 12,747 8.36 3.9837
2022-07-19 2022-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 56,005 -510 -0.90 11,764 -8.53 3.5676
2022-05-17 2022-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 56,515 30 0.05 12,861 -7.65 3.2858
2022-02-08 2021-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 56,485 2,029 3.73 13,927 27.92 3.3491
2021-11-10 2021-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 54,456 1,184 2.22 10,887 2.88 2.9059
2021-08-09 2021-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 53,272 431 0.82 10,582 6.27 2.8107
2021-05-17 2021-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 52,841 837 1.61 9,958 8.66 2.8659
2021-02-16 2020-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 52,004 822 1.61 9,164 28.35 2.7206
2020-10-28 2020-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 51,182 519 1.02 7,140 -5.34 2.2722
2020-07-28 2020-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 50,663 -209 -0.41 7,543 8.47 2.5117
2020-05-07 2020-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 50,872 -433 -0.84 6,954 -20.50 2.7513
2020-01-15 2019-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 51,305 -682 -1.31 8,747 4.24 2.8336
2019-11-04 2019-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 51,987 1,232 2.43 8,391 0.00 2.8865
2019-07-24 2019-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 50,755 -1,375 -2.64 8,391 0.76 2.9355
2019-04-29 2019-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 52,130 -1,129 -2.12 8,328 19.28 2.9751
2019-01-24 2018-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 53,259 -12,211 -18.65 6,982 -29.22 2.9379
2018-10-15 2018-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 65,470 -1,598 -2.38 9,865 9.66 3.3460
2018-07-30 2018-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 67,068 -716 -1.06 8,996 16.94 3.2884
2018-04-24 2018-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 67,784 -579 -0.85 7,693 -3.99 2.8847
2018-02-02 2017-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 68,363 -7,537 -9.93 8,013 -3.43 2.9250
2017-10-26 2017-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 75,900 -4,359 -5.43 8,298 0.94 2.9942
2017-07-21 2017-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 80,259 1,835 2.34 8,221 2.39 3.0416
2017-05-16 2017-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 78,424 -6,236 -7.37 8,029 -7.73 3.2749
2017-02-14 2016-12-31 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 84,660 -1,023 -1.19 8,702 15.18 3.7707
2016-11-16 2016-09-30 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 85,683 -1,635 -1.87 7,555 -5.83 3.2199
2016-08-08 2016-06-30 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 87,318 -172 -0.20 8,023 2.20 3.3751
2016-05-27 2016-03-31 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 87,490 4,765 5.76 7,850 12.01 3.3991
2016-02-12 2015-12-31 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 82,725 3,105 3.90 7,008 9.52 3.1361
2015-11-13 2015-09-30 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 79,620 47 0.06 6,399 0.25 2.9638
2015-08-10 2015-06-30 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 79,573 -370 -0.46 6,383 -6.78 2.7189
2015-05-22 2015-03-31 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 79,943 820 1.04 6,847 3.79 2.8410
2015-02-13 2014-12-31 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 79,123 3,669 4.86 6,597 19.95 2.7949
2014-11-24 2014-09-30 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 75,454 109 0.14 5,500 -7.92 2.4469
2014-07-23 2014-06-30 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 75,345 1,195 1.61 5,973 4.26 2.7347
2014-05-29 2014-03-31 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 74,150 70 0.09 5,729 -4.31 2.8164
2014-02-27 2013-12-31 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 74,080 -825 -1.10 5,987 10.42 2.9806
2013-11-18 2013-09-30 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 74,905 250 0.33 5,422 5.47 3.0238
2013-08-16 2013-06-30 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 74,655 660 0.89 5,141 6.81 3.0749
2013-08-16 2013-03-31 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 73,995 6,680 9.92 4,813 25.60 2.8559
2013-08-16 2012-12-31 13F AUTOMATIC DATA PROCESSING Common Stock 053015103 67,315 67,315 3,832 2.7157
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.