Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionS&co Inc
Latest Disclosed Ownership201,978 shares
Latest Disclosed Value $ 41,037
S&co Inc reports 0.38% decrease in ownership of ADP / Automatic Data Processing, Inc.

On May 7, 2026 - S&co Inc filed a 13F-HR form disclosing ownership of 201,978 shares of Automatic Data Processing, Inc. (US:ADP) valued at $41,037,890 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 202,743 shares of Automatic Data Processing, Inc.. This represents a change in shares of -0.38% during the quarter. The current value of the position is $46,719,531 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 201,978 -765 -0.38 41 -21.15 2.5459
2026-02-05 2025-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 202,743 -3,171 -1.54 52 -13.33 3.2394
2025-11-06 2025-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 205,914 -2,301 -1.11 60 -6.25 3.6996
2025-08-07 2025-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 208,215 2,650 1.29 64 3.23 4.1174
2025-05-08 2025-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 205,565 -275 -0.13 63 3.33 4.2151
2025-02-07 2024-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 205,840 0 0.00 60 7.14 4.0888
2024-11-07 2024-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 205,840 2,350 1.15 57 16.67 3.7218
2024-08-08 2024-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 203,490 -2,225 -1.08 49 -5.88 3.3877
2024-05-09 2024-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 205,715 -856 -0.41 51 6.25 3.6180
2024-02-12 2023-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 206,571 -960 -0.46 48 -2.04 3.6898
2023-11-09 2023-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 207,531 -2,158 -1.03 50 6.52 4.1000
2023-08-08 2023-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 209,689 -665 -0.32 46 0.00 3.7133
2023-05-09 2023-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 210,354 -1,209 -0.57 47 -8.00 3.9767
2023-02-07 2022-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 211,563 -4,414 -2.04 51 -99.90 4.4248
2022-11-09 2022-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 215,977 -277 -0.13 48,851 7.55 4.3988
2022-08-09 2022-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 216,254 -5,790 -2.61 45,421 -10.10 3.8186
2022-05-05 2022-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 222,044 -215 -0.10 50,523 -7.81 3.5466
2022-02-08 2021-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 222,259 22 0.01 54,804 23.35 3.8709
2021-11-09 2021-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 222,237 -605 -0.27 44,429 0.38 3.4638
2021-07-14 2021-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 222,842 0 0.00 44,260 5.38 3.4565
2021-04-23 2021-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 222,842 -850 -0.38 41,999 6.56 3.5339
2021-01-28 2020-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 223,692 -1,855 -0.82 39,415 25.28 3.5197
2020-12-11 2020-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 225,547 -1,680 -0.74 31,462 -7.01 3.1370
2020-12-16 2020-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 227,227 -175 -0.08 33,832 8.85 3.7173
2020-04-28 2020-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 227,402 -1,967 -0.86 31,081 -20.52 4.1521
2020-01-24 2019-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 229,369 -1,161 -0.50 39,107 5.09 4.0801
2019-10-29 2019-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 230,530 995 0.43 37,212 -1.94 4.1207
2019-07-23 2019-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 229,535 -1,112 -0.48 37,949 3.00 4.1645
2019-04-24 2019-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 230,647 -1,205 -0.52 36,844 21.20 4.1015
2019-01-29 2018-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 231,852 -2,121 -0.91 30,400 -13.76 3.8547
2018-11-05 2018-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 233,973 -645 -0.27 35,250 12.00 3.9461
2018-07-27 2018-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 234,618 -55 -0.02 31,472 18.18 3.7858
2018-05-02 2018-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 234,673 -2,325 -0.98 26,631 -4.12 3.3500
2018-01-22 2017-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 236,998 -2,111 -0.88 27,774 6.26 3.4448
2017-11-02 2017-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 239,109 -400 -0.17 26,139 6.52 3.3394
2017-07-28 2017-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 239,509 1,489 0.63 24,540 0.69 3.2445
2017-04-07 2017-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 238,020 -4,080 -1.69 24,371 -2.06 3.3166
2017-01-27 2016-12-31 13F/A-1 AUTOMATIC DATA PROCESSING COM 053015103 242,100 -813 -0.33 24,883 16.14 3.5999
2017-01-25 2016-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 242,100 24,883
2016-10-28 2016-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 242,913 1,005 0.42 21,425 -3.60 3.2164
2016-07-21 2016-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 241,908 0 0.00 22,224 2.41 3.4386
2016-04-29 2016-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 241,908 -125 -0.05 21,702 5.84 3.5174
2016-01-27 2015-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 242,033 -1,755 -0.72 20,505 4.67 3.4446
2015-10-28 2015-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 243,788 193 0.08 19,591 0.24 3.3757
2015-07-13 2015-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 243,595 -2,800 -1.14 19,544 -7.38 2.8587
2015-04-27 2015-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 246,395 7,186 3.00 21,101 5.81 2.9992
2015-01-20 2014-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 239,209 -435 -0.18 19,943 0.17 2.8909
2014-10-31 2014-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 239,644 -17,941 -6.97 19,910 -2.50 3.0464
2014-07-24 2014-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 257,585 -1,605 -0.62 20,421 1.98 2.8348
2014-04-28 2014-03-31 13F AUTOMATIC DATA PROCESSING COM 053015103 259,190 0 0.00 20,025 -4.38 2.9933
2014-02-07 2013-12-31 13F AUTOMATIC DATA PROCESSING COM 053015103 259,190 522 0.20 20,942 11.86 3.4986
2013-10-22 2013-09-30 13F AUTOMATIC DATA PROCESSING COM 053015103 258,668 -3,155 -1.21 18,722 3.84 3.2862
2013-07-24 2013-06-30 13F AUTOMATIC DATA PROCESSING COM 053015103 261,823 261,823 18,029 2.7380
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.