Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionAbacus Planning Group, Inc.
Latest Disclosed Ownership1,166 shares
Latest Disclosed Value $ 236,908
Abacus Planning Group, Inc. reports 10.79% decrease in ownership of ADP / Automatic Data Processing, Inc.

On April 7, 2026 - Abacus Planning Group, Inc. filed a 13F-HR form disclosing ownership of 1,166 shares of Automatic Data Processing, Inc. (US:ADP) valued at $236,908 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 1,307 shares of Automatic Data Processing, Inc.. This represents a change in shares of -10.79% during the quarter. The current value of the position is $269,707 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-07 2026-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,166 -141 -10.79 237 -29.76 0.0319
2026-01-16 2025-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,307 -38 -2.83 336 -14.72 0.0448
2025-10-22 2025-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,345 -47 -3.38 395 -8.16 0.0545
2025-07-21 2025-06-30 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 1,392 -40 -2.79 429 -1.83 0.0638
2025-04-14 2025-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,432 64 4.68 438 9.25 0.0766
2025-02-03 2024-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,368 0 0.00 400 5.82 0.0704
2024-10-02 2024-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,368 61 4.67 379 21.54 0.0677
2024-07-31 2024-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,307 26 2.03 312 -2.51 0.0605
2024-04-12 2024-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,281 -81 -5.95 320 0.63 0.0625
2024-01-19 2023-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,362 30 2.25 317 -0.94 0.0669
2023-10-11 2023-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,332 -36 -2.63 320 6.67 0.0780
2023-07-07 2023-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,368 200 17.12 301 15.38 0.0727
2023-04-18 2023-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,168 -532 -31.29 260 -35.96 0.0670
2023-01-19 2022-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,700 0 0.00 406 5.45 0.1110
2022-10-19 2022-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,700 119 7.53 385 15.96 0.1162
2022-07-18 2022-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,581 0 0.00 332 -7.78 0.0978
2022-04-13 2022-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,581 24 1.54 360 -6.25 0.0969
2022-01-18 2021-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,557 -2 -0.13 384 23.08 0.1025
2021-10-19 2021-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,559 105 7.22 312 7.96 0.0993
2021-07-20 2021-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,454 -118 -7.51 289 -2.36 0.0882
2021-04-27 2021-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,572 -107 -6.37 296 0.00 0.0947
2021-02-01 2020-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,679 -15 -0.89 296 25.42 0.0914
2020-11-03 2020-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,694 0 0.00 236 -6.35 0.0861
2020-08-11 2020-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,694 0 0.00 252 8.62 0.1026
2020-04-30 2020-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,694 0 0.00 232 -19.72 0.1140
2020-01-30 2019-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,694 0 0.00 289 5.86 0.1327
2019-11-01 2019-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,694 40 2.42 273 0.00 0.1353
2019-08-12 2019-06-30 13F AUTOMATIC DATA PROC COM 053015103 1,654 -225 -11.97 273 -9.00 0.1640
2019-04-25 2019-03-31 13F AUTOMATIC DATA PROC COM 053015103 1,879 0 0.00 300 21.95 0.1875
2019-02-15 2018-12-31 13F/A-2 AUTOMATIC DATA PROC COM 053015103 1,879 0 0.00 246 -13.07 0.1865
2019-02-13 2018-12-31 13F/A-1 AUTOMATIC DATA PROC COM 053015103 35,150 33,271 866 0.6566
2019-01-25 2018-12-31 13F ALLIANCE RESOURCE PARTNERS COM 053015103 1,879 0 246
2018-10-31 2018-09-30 13F AUTOMATIC DATA PROC COM 053015103 1,879 1,879 283 0.1899
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.