Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionMather Group, Llc.
Latest Disclosed Ownership70,060 shares
Latest Disclosed Value $ 14,234,816
Mather Group, Llc. reports 330.79% increase in ownership of ADP / Automatic Data Processing, Inc.

On April 13, 2026 - Mather Group, Llc. filed a 13F-HR form disclosing ownership of 70,060 shares of Automatic Data Processing, Inc. (US:ADP) valued at $14,234,791 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 13, 2026 disclosing 16,263 shares of Automatic Data Processing, Inc.. This represents a change in shares of 330.79% during the quarter. The current value of the position is $16,205,579 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)
2026-04-13 2026-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 70,060 53,797 330.79 14,235 240.28 0.1420
2026-01-13 2025-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 16,263 927 6.04 4,183 -7.07 0.0431
2025-10-21 2025-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 15,336 1,001 6.98 4,501 1.83 0.0454
2025-07-15 2025-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 14,335 -222 -1.53 4,421 -0.61 0.0472
2025-04-25 2025-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 14,557 -46,918 -76.32 4,448 -75.29 0.0514
2025-01-27 2024-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 61,475 -5,981 -8.87 17,996 -3.60 0.2334
2024-10-07 2024-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 67,456 -5,250 -7.22 18,667 2.81 0.2398
2024-07-09 2024-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 72,706 58,300 404.69 18,158 441.03 0.2236
2024-04-09 2024-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 14,406 -211 -1.44 3,356 -1.44 0.0530
2024-02-05 2023-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 14,617 1,679 12.98 3,405 9.42 0.0534
2023-11-13 2023-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 12,938 3,236 33.35 3,113 45.97 0.0553
2023-08-08 2023-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 9,702 1,764 22.22 2,132 20.66 0.0340
2023-05-09 2023-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,938 -48,471 -85.93 1,767 -86.88 0.0314
2023-03-10 2022-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 56,409 -4,132 -6.83 13,474 -1.61 0.2594
2022-11-15 2022-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 60,541 -2,478 -3.93 13,694 3.46 0.2948
2022-08-16 2022-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 63,019 2,525 4.17 13,236 -3.84 0.3022
2022-05-13 2022-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 60,494 5,482 9.97 13,765 1.47 0.2717
2022-02-15 2021-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 55,012 -1,640 -2.89 13,565 19.77 0.2656
2021-11-04 2021-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 56,652 -1,292 -2.23 11,326 -1.59 0.2725
2021-08-13 2021-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 57,944 1,508 2.67 11,509 8.21 0.2906
2021-05-14 2021-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 56,436 6,307 12.58 10,636 20.41 0.3009
2021-02-12 2020-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 50,129 3,010 6.39 8,833 34.38 0.2880
2020-11-13 2020-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 47,119 5,251 12.54 6,573 5.44 0.2583
2020-08-14 2020-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 41,868 3,677 9.63 6,234 19.43 0.2856
2020-05-14 2020-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 38,191 3,893 11.35 5,220 -10.74 0.3649
2020-02-14 2019-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 34,298 1,843 5.68 5,848 11.62 0.3669
2019-11-15 2019-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 32,455 2,302 7.63 5,239 5.10 0.3840
2019-08-13 2019-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 30,153 2,695 9.81 4,985 13.66 0.4026
2019-05-15 2019-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 27,458 8,839 47.47 4,386 79.68 0.3650
2019-02-14 2018-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 18,619 3,392 22.28 2,441 6.41 0.2241
2018-10-22 2018-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 15,227 5,679 59.48 2,294 79.08 0.2045
2018-08-02 2018-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 9,548 7,643 401.21 1,281 493.06 0.1250
2018-04-26 2018-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 1,905 1,905 216 0.0224
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.