Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionAlbert D Mason Inc
Latest Disclosed Ownership8,571 shares
Latest Disclosed Value $ 1,741,479
Albert D Mason Inc reports 6.00% increase in ownership of ADP / Automatic Data Processing, Inc.

On April 15, 2026 - Albert D Mason Inc filed a 13F-HR form disclosing ownership of 8,571 shares of Automatic Data Processing, Inc. (US:ADP) valued at $1,741,456 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 13, 2026 disclosing 8,086 shares of Automatic Data Processing, Inc.. This represents a change in shares of 6.00% during the quarter. The current value of the position is $1,982,558 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)
2026-04-15 2026-03-31 13F Automatic Data Processing COM 053015103 8,571 485 6.00 1,741 -16.26 1.1273
2026-01-13 2025-12-31 13F Automatic Data Processing COM 053015103 8,086 50 0.62 2,080 -11.83 1.3689
2025-10-15 2025-09-30 13F Automatic Data Processing COM 053015103 8,036 372 4.85 2,359 -0.21 1.5358
2025-07-29 2025-06-30 13F Automatic Data Processing COM 053015103 7,664 -1,299 -14.49 2,364 -13.70 1.7106
2025-04-16 2025-03-31 13F Automatic Data Processing COM 053015103 8,963 -990 -9.95 2,738 -6.01 1.8616
2025-01-15 2024-12-31 13F Automatic Data Processing COM 053015103 9,953 -1,462 -12.81 2,913 -7.76 1.9469
2024-10-22 2024-09-30 13F Automatic Data Processing COM 053015103 11,415 743 6.96 3,159 23.99 2.0233
2024-07-16 2024-06-30 13F Automatic Data Processing COM 053015103 10,672 -15 -0.14 2,547 127,250.00 1.7215
2024-04-24 2024-03-31 13F Automatic Data Processing COM 053015103 10,687 85 0.80 3 0.00 1.6503
2024-01-03 2023-12-31 13F Automatic Data Processing COM 053015103 10,602 -32 -0.30 2 0.00 1.6360
2023-10-10 2023-09-30 13F Automatic Data Processing COM 053015103 10,634 -286 -2.62 3 0.00 1.8510
2023-07-25 2023-06-30 13F Automatic Data Processing COM 053015103 10,920 -75 -0.68 2 0.00 1.6445
2023-04-11 2023-03-31 13F Automatic Data Processing COM 053015103 10,995 -103 -0.93 2 0.00 1.6975
2023-01-11 2022-12-31 13F Automatic Data Processing COM 053015103 11,098 27 0.24 3 -99.92 1.8918
2022-10-12 2022-09-30 13F Automatic Data Processing COM 053015103 11,071 -21 -0.19 2,504 7.47 2.0067
2022-07-12 2022-06-30 13F Automatic Data Processing COM 053015103 11,092 9 0.08 2,330 -7.61 1.7322
2022-04-20 2022-03-31 13F Automatic Data Processing COM 053015103 11,083 -11 -0.10 2,522 -7.82 1.6224
2022-01-25 2021-12-31 13F Automatic Data Processing COM 053015103 11,094 17 0.15 2,736 23.58 1.6310
2021-10-13 2021-09-30 13F Automatic Data Processing COM 053015103 11,077 65 0.59 2,214 1.23 1.4260
2021-07-14 2021-06-30 13F Automatic Data Processing COM 053015103 11,012 -223 -1.98 2,187 3.31 1.3421
2021-04-14 2021-03-31 13F Automatic Data Processing COM 053015103 11,235 -125 -1.10 2,117 5.74 1.3823
2021-01-12 2020-12-31 13F Automatic Data Processing COM 053015103 11,360 -61 -0.53 2,002 25.67 1.3918
2020-10-20 2020-09-30 13F Automatic Data Processing COM 053015103 11,421 -12 -0.10 1,593 -6.40 1.3057
2020-07-21 2020-06-30 13F Automatic Data Processing COM 053015103 11,433 -10 -0.09 1,702 8.82 1.4340
2020-04-15 2020-03-31 13F Automatic Data Processing COM 053015103 11,443 -10 -0.09 1,564 -19.92 1.5747
2020-01-21 2019-12-31 13F Automatic Data Processing COM 053015103 11,453 0 0.00 1,953 5.62 1.3796
2019-10-23 2019-09-30 13F Automatic Data Processing COM 053015103 11,453 60 0.53 1,849 -1.86 1.3837
2019-07-30 2019-06-30 13F Automatic Data Processing COM 053015103 11,393 -360 -3.06 1,884 0.37 1.4139
2019-04-30 2019-03-31 13F Automatic Data Processing COM 053015103 11,753 -6,996 -37.31 1,877 -23.64 1.3744
2019-01-29 2018-12-31 13F Automatic Data Processing COM 053015103 18,749 -2,015 -9.70 2,458 -21.42 1.9910
2018-10-30 2018-09-30 13F Automatic Data Processing COM 053015103 20,764 -395 -1.87 3,128 10.22 2.1358
2018-07-31 2018-06-30 13F Automatic Data Processing COM 053015103 21,159 -3,476 -14.11 2,838 1.50 2.0501
2018-05-02 2018-03-31 13F Automatic Data Processing COM 053015103 24,635 -305 -1.22 2,796 -4.34 2.1036
2018-02-06 2017-12-31 13F Automatic Data Processing COM 053015103 24,940 205 0.83 2,923 8.10 2.1964
2017-10-18 2017-09-30 13F Automatic Data Processing COM 053015103 24,735 -5 -0.02 2,704 6.67 2.1734
2017-07-25 2017-06-30 13F Automatic Data Processing COM 053015103 24,740 -110 -0.44 2,535 -0.35 2.1185
2017-05-02 2017-03-31 13F Automatic Data Processing COM 053015103 24,850 -17 -0.07 2,544 -0.47 2.1585
2017-02-01 2016-12-31 13F Automatic Data Processing COM 053015103 24,867 -47,857 -65.81 2,556 -60.15 2.2300
2016-10-25 2016-09-30 13F Automatic Data Processing COM 053015103 72,724 31,247 75.34 6,414 68.35 2.0671
2016-07-19 2016-06-30 13F Automatic Data Processing COM 053015103 41,477 1,332 3.32 3,810 5.80 2.2123
2016-04-27 2016-03-31 13F Automatic Data Processing COM 053015103 40,145 -65 -0.16 3,601 5.69 2.2043
2016-01-20 2015-12-31 13F Automatic Data Processing COM 053015103 40,210 -4,180 -9.42 3,407 -4.49 2.2241
2015-10-13 2015-09-30 13F Automatic Data Processing COM 053015103 44,390 209 0.47 3,567 0.65 2.2051
2015-07-22 2015-06-30 13F Automatic Data Processing COM 053015103 44,181 -43,338 -49.52 3,544 -52.72 1.9145
2015-05-06 2015-03-31 13F Automatic Data Processing COM 053015103 87,519 -18,931 -17.78 7,495 -15.55 1.5591
2015-02-18 2014-12-31 13F/A-1 Automatic Data Processing COM 053015103 92,450 -17,760 7,708 1.7167
2015-02-26 2014-12-31 13F/A-2 Automatic Data Processing COM 053015103 106,450 -3,760 -3.41 8,875 -3.07 1.7704
2015-02-11 2014-12-31 13F Automatic Data Processing COM 053015103 58,450 4,873
2015-02-26 2014-09-30 13F/A-1 Automatic Data Processing COM 053015103 110,210 -9,675 -8.07 9,156 -3.66 1.7980
2014-10-14 2014-09-30 13F Automatic Data Processing COM 053015103 62,270 5,173
2015-02-25 2014-06-30 13F/A-1 Automatic Data Processing COM 053015103 119,885 10,110 9.21 9,504 12.06 1.7293
2014-07-30 2014-06-30 13F Automatic Data Processing COM 053015103 66,020 5,234
2014-04-22 2014-03-31 13F Automatic Data Processing COM 053015103 109,775 -9,000 -7.58 8,481 -11.63 1.6573
2014-01-21 2013-12-31 13F Automatic Data Processing COM 053015103 118,775 -490 -0.41 9,597 11.18 1.8890
2013-10-29 2013-09-30 13F Automatic Data Processing COM 053015103 119,265 -3,575 -2.91 8,632 2.05 1.8097
2013-08-16 2013-06-30 13F Automatic Data Processing COM 053015103 122,840 122,840 8,459 1.8690
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.