Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionResources Management Corp /ct/ /adv
Latest Disclosed Ownership28,567 shares
Latest Disclosed Value $ 5,804
Resources Management Corp /ct/ /adv reports 10.06% increase in ownership of ADP / Automatic Data Processing, Inc.

On May 15, 2026 - Resources Management Corp /ct/ /adv filed a 13F-HR form disclosing ownership of 28,567 shares of Automatic Data Processing, Inc. (US:ADP) valued at $5,804,243 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 25,956 shares of Automatic Data Processing, Inc.. This represents a change in shares of 10.06% during the quarter. The current value of the position is $6,506,134 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)
2026-05-15 2026-03-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 28,567 2,611 10.06 6 -16.67 0.7704
2026-02-13 2025-12-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 25,956 941 3.76 7 -14.29 0.8650
2025-11-14 2025-09-30 13F/A-1 AUTOMATIC DATA PROCESSING Ordinary Share 053015103 25,015 1,605 6.86 7 0.00 0.9489
2025-11-14 2025-09-30 13F AMPHENOL CORP Ordinary Share 053015103 333,935 310,525 41 5.3385
2025-08-15 2025-06-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 23,410 52 0.22 7 0.00 0.9804
2025-05-16 2025-03-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 23,358 759 3.36 7 16.67 1.0036
2025-02-14 2024-12-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 22,599 -269 -1.18 7 0.00 0.9029
2024-11-15 2024-09-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 22,868 -75 -0.33 6 20.00 0.8537
2024-08-14 2024-06-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 22,943 -45 -0.20 5 0.00 0.7970
2024-05-15 2024-03-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 22,988 -105 -0.45 6 0.00 0.8390
2024-02-14 2023-12-31 13F/A-1 AUTOMATIC DATA PROCESSING Ordinary Share 053015103 23,093 135 0.59 5 0.00 0.7992
2024-02-14 2023-12-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 233 5
2023-11-16 2023-09-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 22,958 -1,070 -4.45 6 0.00 0.8993
2023-08-16 2023-06-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 24,028 6,828 39.70 5 0.8241
2023-05-11 2023-03-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 17,200 -7,314 -29.84 1 -100.00 0.1298
2023-02-08 2022-12-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 24,514 -145 -0.59 6 -99.91 0.9245
2022-11-15 2022-09-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 24,659 -40 -0.16 5,578 7.52 0.9625
2022-08-10 2022-06-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 24,699 94 0.38 5,188 -7.34 0.8384
2022-05-20 2022-03-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 24,605 -110 -0.45 5,599 -8.12 0.7823
2022-02-04 2021-12-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 24,715 -1,407 -5.39 6,094 16.70 0.7930
2021-11-12 2021-09-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 26,122 -477 -1.79 5,222 -1.15 0.7508
2021-08-10 2021-06-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 26,599 -500 -1.85 5,283 3.45 0.7421
2021-05-13 2021-03-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 27,099 -30 -0.11 5,107 6.84 0.7721
2021-02-16 2020-12-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 27,129 -615 -2.22 4,780 23.51 0.7688
2020-11-12 2020-09-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 27,744 -300 -1.07 3,870 -7.31 0.6987
2020-08-11 2020-06-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 28,044 -452 -1.59 4,175 7.19 0.7985
2020-05-04 2020-03-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 28,496 -665 -2.28 3,895 -21.66 0.8688
2020-02-13 2019-12-31 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 29,161 -168 -0.57 4,972 5.03 0.8610
2019-12-04 2019-09-30 13F AUTOMATIC DATA PROCESSING Ordinary Share 053015103 29,329 -462 -1.55 4,734 24.02 0.8757
2019-02-21 2018-12-31 13F AUTOMATIC DATA PROCESSING Ordinary Shares 053015103 29,791 -25 -0.08 3,817 -15.03 0.8495
2018-11-15 2018-09-30 13F AUTOMATIC DATA PROCESSING Ordinary Shares 053015103 29,816 29,816 4,492 0.8194
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.