Automatic Data Processing, Inc.
US ˙ NasdaqGS ˙ US0530151036

SecurityADP / Automatic Data Processing, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership230,705 shares
Latest Disclosed Value $ 46,874,642
Trexquant Investment LP ownership in ADP / Automatic Data Processing, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 230,705 shares of Automatic Data Processing, Inc. (US:ADP) valued at $46,874,642 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 62,658 shares of Automatic Data Processing, Inc.. This represents a change in shares of 268.20% during the quarter. The current value of the position is $53,512,025 USD.

Trexquant Investment LP has a history of taking positions in derivatives of the underlying security (ADP) in the form of stock options. The firm currently holds call options representing 1,100 of underlying shares valued at $223,498 USD and put options representing 3,800 of underlying shares valued at $772,084 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

ADP / Automatic Data Processing, Inc. Historical Put/Call Ratio
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)
2026-05-15 2026-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 230,705 168,047 268.20 46,875 190.84 0.3368
2026-02-17 2025-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 62,658 39,961 176.06 16,118 141.96 0.1437
2025-11-14 2025-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 22,697 -54,550 -70.62 6,662 -72.04 0.0686
2025-08-12 2025-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 77,247 32,885 74.13 23,823 75.77 0.2687
2025-05-14 2025-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 44,362 44,362 13,554 0.1577
2025-02-12 2024-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 0 -15,426 -100.00 0 -100.00
2024-11-12 2024-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 15,426 4,001 35.02 4,269 56.51 0.0540
2024-08-13 2024-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 11,425 9,392 461.98 2,727 437.87 0.0416
2024-05-14 2024-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 2,033 2,033 508 0.0101
2023-11-13 2023-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 0 -65,438 -100.00 0 -100.00
2023-08-11 2023-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 65,438 18,247 38.67 14,383 36.89 0.3770
2023-05-15 2023-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 47,191 47,191 10,506 0.2885
2023-02-13 2022-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 0 -35,298 -100.00 0 -100.00
2022-11-14 2022-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 35,298 -354 -0.99 7,984 6.62 0.2808
2022-08-11 2022-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 35,652 12,067 51.16 7,488 39.52 0.3355
2022-05-13 2022-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 23,585 23,585 5,367 0.2521
2022-02-11 2021-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 0 -43,327 -100.00 0 -100.00
2021-11-12 2021-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 43,327 16,589 62.04 8,662 63.10 0.6882
2021-08-12 2021-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 26,738 26,738 5,311 0.4482
2021-05-13 2021-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 0 -6,681 -100.00 0 -100.00
2021-02-11 2020-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 6,681 -13,177 -66.36 1,177 -57.51 0.1247
2020-11-06 2020-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 19,858 -40,815 -67.27 2,770 -69.34 0.1782
2020-08-07 2020-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 60,673 60,673 205.53 9,034 226.14 0.6273
2020-02-14 2019-09-30 13F/A-1 AUTOMATIC DATA PROCESSING IN COM 053015103 0 -40,681 -100.00 0 -100.00
2019-08-09 2019-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 40,681 40,681 6,726 0.6053
2019-05-13 2019-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 0 -31,035 -100.00 0 -100.00
2019-02-13 2018-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 31,035 31,035 4,069 0.2543
2018-11-09 2018-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 0 -27,214 -100.00 0 -100.00
2018-08-07 2018-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 27,214 27,214 3,650 0.2529
2018-05-03 2018-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 0 -17,962 -100.00 0 -100.00
2018-02-08 2017-12-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 17,962 7,572 72.88 2,105 85.30 0.2311
2017-11-09 2017-09-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 10,390 10,390 -42.16 1,136 -46.03 0.2862
2016-08-10 2016-06-30 13F AUTOMATIC DATA PROCESSING IN COM 053015103 0 -4,700 -100.00 0 -100.00
2016-05-11 2016-03-31 13F AUTOMATIC DATA PROCESSING IN COM 053015103 4,700 4,700 422 0.0494
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F AUTOMATIC DATA PROCESSING IN COM Call 1,100 223 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F AUTOMATIC DATA PROCESSING IN COM Put 3,800 772 n/a n/a n/a
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.