Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionPinnacle Associates Ltd
Latest Disclosed Ownership27,499 shares
Latest Disclosed Value $ 5,587,331
Pinnacle Associates Ltd reports 12.86% decrease in ownership of ADP / Automatic Data Processing, Inc.

On April 21, 2026 - Pinnacle Associates Ltd filed a 13F-HR form disclosing ownership of 27,499 shares of Automatic Data Processing, Inc. (US:ADP) valued at $5,587,247 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 31,559 shares of Automatic Data Processing, Inc.. This represents a change in shares of -12.86% during the quarter. The current value of the position is $6,262,897 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)
2026-04-21 2026-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 27,499 -4,060 -12.86 5,587 -31.18 0.0716
2026-02-05 2025-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 31,559 -286 -0.90 8,118 -13.14 0.1042
2025-11-13 2025-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 31,845 -236 -0.74 9,347 -5.53 0.1240
2025-08-04 2025-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 32,081 -111 -0.34 9,894 0.59 0.1432
2025-05-06 2025-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 32,192 -1,201 -3.60 9,836 0.61 0.1441
2025-02-14 2024-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 33,393 3,006 9.89 9,775 38.08 0.1326
2024-10-25 2024-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 30,387 552 1.85 7,079 -0.59 0.1204
2024-07-30 2024-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 29,835 -60 -0.20 7,121 -4.61 0.1115
2024-04-26 2024-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 29,895 -492 -1.62 7,466 5.45 0.1177
2024-01-19 2023-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 30,387 291 0.97 7,079 -2.22 0.1191
2023-10-24 2023-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 30,096 -229 -0.76 7,241 8.63 0.1346
2023-07-27 2023-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 30,325 15,556 105.33 6,665 102.71 0.1157
2023-05-05 2023-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 14,769 -148 -0.99 3,288 -7.72 0.0672
2023-02-01 2022-12-31 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 14,917 217 1.48 3,563 7.16 0.0776
2023-01-25 2022-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 15,025 325 3,966 0.0001
2022-11-01 2022-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 14,700 458 3.22 3,325 11.17 0.0763
2022-08-02 2022-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 14,242 846 6.32 2,991 -1.87 0.0652
2022-05-05 2022-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 13,396 -163 -1.20 3,048 -8.82 0.0540
2022-02-02 2021-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 13,559 2,932 27.59 3,343 57.39 0.0577
2021-10-19 2021-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 10,627 14 0.13 2,124 0.76 0.0392
2021-08-02 2021-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 10,613 14 0.13 2,108 5.51 0.0381
2021-05-12 2021-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 10,599 -490 -4.42 1,998 2.25 0.0381
2021-01-26 2020-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 11,089 61 0.55 1,954 27.05 0.0397
2020-10-23 2020-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 11,028 26 0.24 1,538 -6.11 0.0365
2020-08-14 2020-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 11,002 -87 -0.78 1,638 8.05 0.0404
2020-05-13 2020-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 11,089 -245 -2.16 1,516 -21.53 0.0461
2020-02-03 2019-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 11,334 -777 -6.42 1,932 -1.18 0.0423
2019-11-08 2019-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 12,111 -83 -0.68 1,955 -3.03 0.0461
2019-08-05 2019-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 12,194 -86 -0.70 2,016 2.75 0.0472
2019-05-10 2019-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 12,280 -984 -7.42 1,962 12.82 0.0443
2019-02-05 2018-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 13,264 4,463 50.71 1,739 31.15 0.0449
2018-11-09 2018-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,801 172 1.99 1,326 14.51 0.0275
2018-08-08 2018-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,629 115 1.35 1,158 19.88 0.0238
2018-05-11 2018-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,514 1,515 21.65 966 17.80 0.0189
2018-02-12 2017-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 6,999 39 0.56 820 7.75 0.0158
2017-11-13 2017-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 6,960 -485 -6.51 761 -0.26 0.0140
2017-08-09 2017-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,445 -1,361 -15.46 763 -15.41 0.0147
2017-05-09 2017-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,806 -399 -4.33 902 -4.65 0.0172
2017-02-10 2016-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 9,205 406 4.61 946 21.91 0.0191
2016-11-14 2016-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,799 141 1.63 776 -2.39 0.0156
2016-08-15 2016-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,658 18 0.21 795 2.58 0.0171
2016-05-13 2016-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,640 -226 -2.55 775 3.20 0.0166
2016-02-11 2015-12-31 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 8,866 -61 -0.68 751 4.74 0.0158
2016-02-09 2015-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,866 -61 751 0.0160
2015-11-10 2015-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,927 -1,605 -15.24 717 -15.15 0.0159
2015-08-12 2015-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 10,532 -608 -5.46 845 -11.43 0.0157
2015-05-15 2015-03-31 13F Automatic Data Processing COM 053015103 11,140 187 1.71 954 4.49 0.0178
2015-02-12 2014-12-31 13F Automatic Data Processing COM 053015103 10,953 -79 -0.72 913 -0.44 0.0179
2014-11-12 2014-09-30 13F Automatic Data Processing COM 053015103 11,032 34 0.31 917 5.16 0.0187
2014-08-14 2014-06-30 13F Automatic Data Processing COM 053015103 10,998 -3 -0.03 872 2.59 0.0170
2014-05-14 2014-03-31 13F Automatic Data Processing COM 053015103 11,001 -1,738 -13.64 850 -17.40 0.0166
2014-02-12 2013-12-31 13F Automatic Data Processing COM 053015103 12,739 -82 -0.64 1,029 10.88 0.0201
2013-11-14 2013-09-30 13F Automatic Data Processing COM 053015103 12,821 -352 -2.67 928 2.32 0.0192
2013-08-13 2013-06-30 13F Automatic Data Processing COM 053015103 13,173 13,173 907 0.0204
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.