Paychex, Inc.
US ˙ NasdaqGS ˙ US7043261079

SecurityPAYX / Paychex, Inc.
InstitutionEmpirical Finance, LLC
Latest Disclosed Ownership10,887 shares
Latest Disclosed Value $ 1,002,910
Empirical Finance, LLC reports 0.13% decrease in ownership of PAYX / Paychex, Inc.

On May 14, 2026 - Empirical Finance, LLC filed a 13F-HR/A form disclosing ownership of 10,887 shares of Paychex, Inc. (US:PAYX) valued at $1,002,910 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 10,901 shares of Paychex, Inc.. This represents a change in shares of -0.13% during the quarter. The current value of the position is $1,094,470 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)
2026-05-14 2026-03-31 13F/A-1 PAYCHEX COM 704326107 10,887 -14 -0.13 1,003 -18.00 0.0471
2026-05-14 2026-03-31 13F PAYCHEX COM 704326107 10,887 -14 1,003 0.0471
2026-02-12 2025-12-31 13F PAYCHEX COM 704326107 10,901 -475 -4.18 1,223 -15.26 0.0583
2025-11-13 2025-09-30 13F PAYCHEX COM 704326107 11,376 109 0.97 1,442 -11.97 0.0687
2025-08-11 2025-06-30 13F PAYCHEX COM 704326107 11,267 75 0.67 1,639 -5.10 0.0858
2025-05-07 2025-03-31 13F PAYCHEX COM 704326107 11,192 239 2.18 1,727 12.44 0.1043
2025-01-28 2024-12-31 13F PAYCHEX COM 704326107 10,953 -129 -1.16 1,536 3.23 0.0889
2024-11-06 2024-09-30 13F PAYCHEX COM 704326107 11,082 240 2.21 1,487 15.72 0.0867
2024-07-30 2024-06-30 13F PAYCHEX COM 704326107 10,842 -735 -6.35 1,285 -9.57 0.0803
2024-05-06 2024-03-31 13F PAYCHEX COM 704326107 11,577 396 3.54 1,422 6.76 0.0873
2024-02-14 2023-12-31 13F PAYCHEX COM 704326107 11,181 83 0.75 1,332 4.07 0.0929
2023-11-02 2023-09-30 13F PAYCHEX COM 704326107 11,098 1,090 10.89 1,280 14.30 0.0940
2023-07-27 2023-06-30 13F PAYCHEX COM 704326107 10,008 1,127 12.69 1,120 10.03 0.0867
2023-04-05 2023-03-31 13F PAYCHEX COM 704326107 8,881 450 5.34 1,018 4.41 0.0953
2023-02-21 2022-12-31 13F/A-1 PAYCHEX COM 704326107 8,431 659 8.48 974 11.70 0.1009
2023-01-24 2022-12-31 13F PAYCHEX COM 704326107 8,431 659 1 0.1008
2022-11-04 2022-09-30 13F PAYCHEX COM 704326107 7,772 1,279 19.70 872 18.00 0.1034
2022-08-01 2022-06-30 13F PAYCHEX COM 704326107 6,493 358 5.84 739 -11.71 0.0942
2022-04-21 2022-03-31 13F PAYCHEX COM 704326107 6,135 666 12.18 837 12.05 0.0938
2022-02-04 2021-12-31 13F PAYCHEX COM 704326107 5,469 1,451 36.11 747 65.27 0.0882
2021-11-12 2021-09-30 13F PAYCHEX COM 704326107 4,018 223 5.88 452 11.06 0.0681
2021-08-10 2021-06-30 13F/A-1 PAYCHEX COM 704326107 3,795 573 17.78 407 35.67 0.0664
2021-08-04 2021-06-30 13F PAYCHEX COM 704326107 3,222 0 300 0.0528
2021-05-13 2021-03-31 13F PAYCHEX COM 704326107 3,222 0 0.00 300 0.00 0.0528
2021-02-02 2020-12-31 13F PAYCHEX COM 704326107 3,222 566 21.31 300 41.51 0.0528
2020-10-28 2020-09-30 13F/A-1 PAYCHEX COM 704326107 2,656 2,656 212 0.0454
2017-05-11 2017-03-31 13F PAYCHEX COM 704326107 0 -160 -100.00 0 -100.00
2017-02-13 2016-12-31 13F PAYCHEX COM 704326107 160 160 10 0.0067
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.