Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionVan Strum & Towne Inc.
Latest Disclosed Ownership49,526 shares
Latest Disclosed Value $ 10,062,694
Van Strum & Towne Inc. reports 1.04% increase in ownership of ADP / Automatic Data Processing, Inc.

On May 7, 2026 - Van Strum & Towne Inc. filed a 13F-HR form disclosing ownership of 49,526 shares of Automatic Data Processing, Inc. (US:ADP) valued at $10,062,693 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 49,018 shares of Automatic Data Processing, Inc.. This represents a change in shares of 1.04% during the quarter. The current value of the position is $11,455,859 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 IN COM 053015103 49,526 508 1.04 10,063 -20.19 2.9378
2026-02-03 2025-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 49,018 -160 -0.33 12,609 -12.64 3.5269
2025-10-31 2025-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 49,178 -418 -0.84 14,434 -5.64 4.2408
2025-07-25 2025-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 49,596 -580 -1.16 15,295 -0.23 4.8269
2025-05-06 2025-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 50,176 -1,704 -3.28 15,330 0.95 5.1514
2025-02-10 2024-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 51,880 -2,618 -4.80 15,187 0.70 5.3436
2024-11-12 2024-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 54,498 8 0.01 15,081 15.95 5.2203
2024-07-25 2024-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 54,490 93 0.17 13,006 -4.26 4.7209
2024-05-03 2024-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 54,397 -626 -1.14 13,585 5.98 4.9615
2024-01-19 2023-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 55,023 -399 -0.72 12,819 -3.86 5.0235
2023-11-08 2023-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 55,422 -100 -0.18 13,333 9.26 5.6252
2023-08-09 2023-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 55,522 -275 -0.49 12,203 -1.76 5.0491
2023-05-11 2023-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 55,797 26 0.05 12,422 -6.75 5.3081
2023-02-01 2022-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 55,771 -1,158 -2.03 13,321 3.45 5.7348
2022-11-14 2022-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 56,929 -440 -0.77 12,877 6.86 5.9445
2022-08-11 2022-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 57,369 -410 -0.71 12,050 -8.34 5.1345
2022-05-10 2022-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 57,779 -519 -0.89 13,147 -8.54 4.9205
2022-02-08 2021-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 58,298 407 0.70 14,375 24.20 5.2091
2021-11-12 2021-09-30 13F Automatic Data Processing COM 053015103 57,891 -145 -0.25 11,574 0.41 4.5599
2021-08-06 2021-06-30 13F Automatic Data Processing COM 053015103 58,036 -1,610 -2.70 11,527 2.54 5.5199
2021-05-05 2021-03-31 13F Automatic Data Processing COM 053015103 59,646 -1,425 -2.33 11,241 4.46 5.6746
2021-02-03 2020-12-31 13F Automatic Data Processing COM 053015103 61,071 -2,896 -4.53 10,761 20.60 5.9834
2020-11-12 2020-09-30 13F Automatic Data Processing COM 053015103 63,967 625 0.99 8,923 -5.39 5.7927
2020-07-14 2020-06-30 13F Automatic Data Processing COM 053015103 63,342 -235 -0.37 9,431 8.53 6.5689
2020-04-29 2020-03-31 13F Automatic Data Processing COM 053015103 63,577 -10 -0.02 8,690 -19.85 6.8770
2020-01-29 2019-12-31 13F Automatic Data Processing COM 053015103 63,587 -1,530 -2.35 10,842 3.15 6.6810
2019-10-30 2019-09-30 13F Automatic Data Processing COM 053015103 65,117 6,000 10.15 10,511 7.54 6.9479
2019-08-12 2019-06-30 13F Automatic Data Processing COM 053015103 59,117 -350 -0.59 9,774 2.90 6.9539
2019-05-13 2019-03-31 13F Automatic Data Processing COM 053015103 59,467 -285 -0.48 9,499 21.24 7.0765
2019-02-11 2018-12-31 13F Automatic Data Processing COM 053015103 59,752 -6,102 -9.27 7,835 -21.03 6.6109
2018-11-14 2018-09-30 13F Automatic Data Processing COM 053015103 65,854 -2,425 -3.55 9,922 8.33 6.3983
2018-08-13 2018-06-30 13F Automatic Data Processing COM 053015103 68,279 -1,200 -1.73 9,159 16.17 6.3370
2018-05-01 2018-03-31 13F Automatic Data Processing COM 053015103 69,479 -1,158 -1.64 7,884 -4.76 5.5418
2018-02-12 2017-12-31 13F Automatic Data Processing COM 053015103 70,637 -4,650 -6.18 8,278 0.58 5.5054
2017-11-09 2017-09-30 13F Automatic Data Processing COM 053015103 75,287 985 1.33 8,230 8.10 5.3550
2017-08-02 2017-06-30 13F Automatic Data Processing COM 053015103 74,302 -615 -0.82 7,613 -0.76 4.9653
2017-05-03 2017-03-31 13F Automatic Data Processing COM 053015103 74,917 -2,628 -3.39 7,671 -3.75 4.9494
2017-02-10 2016-12-31 13F Automatic Data Processing COM 053015103 77,545 -402 -0.52 7,970 15.93 5.0013
2016-11-14 2016-09-30 13F Automatic Data Processing COM 053015103 77,947 -310 -0.40 6,875 -4.37 4.5231
2016-08-09 2016-06-30 13F Automatic Data Processing COM 053015103 78,257 -729 -0.92 7,189 1.45 4.7777
2016-05-11 2016-03-31 13F Automatic Data Processing COM 053015103 78,986 405 0.52 7,086 6.44 4.6965
2016-02-05 2015-12-31 13F Automatic Data Processing COM 053015103 78,581 -675 -0.85 6,657 4.52 4.3171
2015-11-12 2015-09-30 13F Automatic Data Processing COM 053015103 79,256 -105 -0.13 6,369 0.03 4.3527
2015-08-12 2015-06-30 13F Automatic Data Processing COM 053015103 79,361 -25 -0.03 6,367 -6.35 3.9172
2015-05-07 2015-03-31 13F Automatic Data Processing COM 053015103 79,386 -950 -1.18 6,799 1.51 4.2322
2015-02-13 2014-12-31 13F Automatic Data Processing COM 053015103 80,336 -406 -0.50 6,698 -0.15 4.1432
2014-11-10 2014-09-30 13F/A-1 Automatic Data Processing COM 053015103 80,742 1,248 1.57 6,708 6.44 4.3770
2014-11-07 2014-09-30 13F Automatic Data Processing COM 053015103 79,494 6,302
2014-08-12 2014-06-30 13F Automatic Data Processing COM 053015103 79,494 -4,169 -4.98 6,302 -2.51 4.1170
2014-05-05 2014-03-31 13F Automatic Data Processing COM 053015103 83,663 -550 -0.65 6,464 -5.00 4.1592
2014-02-12 2013-12-31 13F Automatic Data Processing COM 053015103 84,213 -800 -0.94 6,804 10.58 4.5387
2013-11-08 2013-09-30 13F Automatic Data Processing COM 053015103 85,013 -320 -0.38 6,153 4.71 4.5901
2013-08-13 2013-06-30 13F Automatic Data Processing COM 053015103 85,333 85,333 5,876 4.5207
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.