Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionBailard, Inc.
Latest Disclosed Ownership19,344 shares
Latest Disclosed Value $ 3,930,314
Bailard, Inc. reports 2.85% decrease in ownership of ADP / Automatic Data Processing, Inc.

On May 11, 2026 - Bailard, Inc. filed a 13F-HR form disclosing ownership of 19,344 shares of Automatic Data Processing, Inc. (US:ADP) valued at $3,930,314 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 19,912 shares of Automatic Data Processing, Inc.. This represents a change in shares of -2.85% during the quarter. The current value of the position is $4,405,596 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)
2026-05-11 2026-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 19,344 -568 -2.85 3,930 -23.26 0.0903
2026-02-04 2025-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 19,912 1,023 5.42 5,122 -7.61 0.1134
2025-10-30 2025-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 18,889 1,242 7.04 5,544 1.86 0.1205
2025-08-08 2025-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 17,647 6,167 53.72 5,442 55.18 0.1269
2025-05-02 2025-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 11,480 482 4.38 3,507 8.95 0.0905
2025-02-05 2024-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 10,998 742 7.23 3,219 13.42 0.0823
2024-10-30 2024-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 10,256 232 2.31 2,838 18.65 0.0739
2024-07-25 2024-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 10,024 2,522 33.62 2,393 27.71 0.0659
2024-05-08 2024-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,502 -1,118 -12.97 1,874 -6.72 0.0517
2024-02-02 2023-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 8,620 1,658 23.81 2,008 19.95 0.0595
2023-10-24 2023-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 6,962 -391 -5.32 1,675 3.59 0.0555
2023-07-20 2023-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,353 60 0.82 1,616 -0.43 0.0565
2023-05-08 2023-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,293 6 0.08 1,624 -6.72 0.0582
2023-02-02 2022-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,287 -66 -0.90 1,741 4.63 0.0663
2022-10-18 2022-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,353 35 0.48 1,663 8.20 0.0688
2022-07-27 2022-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,318 123 1.71 1,537 -6.11 0.0605
2022-04-25 2022-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,195 1,762 32.43 1,637 22.16 0.0550
2022-02-10 2021-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,433 0 0.00 1,340 23.39 0.0427
2021-11-15 2021-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,433 -10 -0.18 1,086 0.46 0.0371
2021-08-13 2021-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,443 -25 -0.46 1,081 4.85 0.0373
2021-05-13 2021-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,468 145 2.72 1,031 9.91 0.0382
2021-02-03 2020-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,323 116 2.23 938 29.20 0.0428
2020-11-10 2020-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,207 -411 -7.32 726 -13.16 0.0376
2020-08-12 2020-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,618 110 2.00 836 11.02 0.0467
2020-04-16 2020-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,508 -25 -0.45 753 -20.15 0.0536
2020-01-31 2019-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,533 0 0.00 943 5.60 0.0531
2019-10-18 2019-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,533 -150 -2.64 893 -5.00 0.0540
2019-07-26 2019-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,683 -10 -0.18 940 3.41 0.0575
2019-04-24 2019-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,693 0 0.00 909 21.85 0.0564
2019-02-05 2018-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,693 -541 -8.68 746 -20.55 0.0504
2018-11-13 2018-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 6,234 84 1.37 939 13.82 0.0549
2018-08-08 2018-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 6,150 0 0.00 825 18.19 0.0491
2018-05-07 2018-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 6,150 1,000 19.42 698 15.56 0.0446
2018-02-08 2017-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,150 -389 -7.02 604 -0.33 0.0380
2018-01-29 2017-09-30 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 5,539 0 0.00 606 6.69 0.0469
2017-10-11 2017-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,539 0 606 0.0462
2018-01-29 2017-06-30 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 5,539 -425 -7.13 568 -7.04 0.0464
2017-08-11 2017-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,539 -425 568 0.0450
2018-01-29 2017-03-31 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 5,964 230 4.01 611 3.74 0.0507
2017-05-12 2017-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,964 230 611 0.0511
2018-01-29 2016-12-31 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 5,734 45 0.79 589 17.33 0.0546
2017-02-10 2016-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,734 45 589 0.0533
2018-01-29 2016-09-30 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 5,689 -100 -1.73 502 -5.64 0.0464
2016-11-08 2016-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,689 -100 502 0.0458
2018-01-29 2016-06-30 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 5,789 2,250 63.58 532 67.82 0.0634
2016-08-08 2016-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,789 2,250 532 0.0642
2018-01-29 2016-03-31 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 3,539 -10,061 -73.98 317 -72.48 0.0443
2016-05-16 2016-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 3,539 -10,061 317 0.0445
2018-01-29 2015-12-31 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 13,600 8,426 162.85 1,152 176.92 0.5098
2016-02-10 2015-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 13,600 8,426 1,152 0.4958
2018-01-29 2015-09-30 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 5,174 0 0.00 416 0.24 0.0654
2015-11-13 2015-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,174 0 416 0.0659
2018-01-29 2015-06-30 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 5,174 -2,235 -30.17 415 -34.65 0.0643
2015-08-06 2015-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 5,174 -2,235 415 0.0649
2018-01-29 2015-03-31 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 7,409 20 0.27 635 3.08 0.0882
2015-05-07 2015-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,409 20 635 0.0892
2018-01-29 2014-12-31 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 7,389 -247 -3.23 616 -2.84 0.0872
2015-01-26 2014-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,389 -247 616
2014-10-21 2014-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,636 52 0.69 634 5.49 0.0973
2014-07-30 2014-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 7,584 -3,010 -28.41 601 -26.53 0.0924
2014-04-30 2014-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 10,594 -1,585 -13.01 818 -16.87 0.1297
2014-01-28 2013-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 12,179 -1,318 -9.77 984 0.72 0.1587
2013-10-28 2013-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 13,497 -15,572 -53.57 977 -51.20 0.1855
2013-07-16 2013-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 29,069 29,069 2,002 0.3643
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.