Paychex, Inc.
US ˙ NasdaqGS ˙ US7043261079

SecurityPAYX / Paychex, Inc.
InstitutionGrandfield & Dodd, Llc
Latest Disclosed Ownership386,178 shares
Latest Disclosed Value $ 35,574,741
Grandfield & Dodd, Llc reports 4.99% increase in ownership of PAYX / Paychex, Inc.

On May 7, 2026 - Grandfield & Dodd, Llc filed a 13F-HR form disclosing ownership of 386,178 shares of Paychex, Inc. (US:PAYX) valued at $35,574,717 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 367,832 shares of Paychex, Inc.. This represents a change in shares of 4.99% during the quarter. The current value of the position is $38,822,474 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)
2026-05-07 2026-03-31 13F PAYCHEX COM 704326107 386,178 18,346 4.99 35,575 -13.79 2.0086
2026-02-10 2025-12-31 13F PAYCHEX COM 704326107 367,832 -7,836 -2.09 41,263 -13.35 2.3371
2025-10-30 2025-09-30 13F PAYCHEX COM 704326107 375,668 80 0.02 47,620 -12.84 2.7014
2025-08-08 2025-06-30 13F PAYCHEX COM 704326107 375,588 -3,969 -1.05 54,633 -6.70 3.1994
2025-05-02 2025-03-31 13F PAYCHEX COM 704326107 379,557 -2,877 -0.75 58,558 9.20 3.6306
2025-02-06 2024-12-31 13F PAYCHEX COM 704326107 382,434 463 0.12 53,625 4.62 3.3063
2024-11-08 2024-09-30 13F PAYCHEX COM 704326107 381,971 -930 -0.24 51,257 12.91 3.0374
2024-08-09 2024-06-30 13F PAYCHEX COM 704326107 382,901 880 0.23 45,397 -3.23 2.8741
2024-05-06 2024-03-31 13F PAYCHEX COM 704326107 382,021 1,082 0.28 46,912 3.39 2.9604
2024-01-31 2023-12-31 13F PAYCHEX COM 704326107 380,939 -157 -0.04 45,374 3.24 3.1352
2023-10-26 2023-09-30 13F PAYCHEX COM 704326107 381,096 3,125 0.83 43,952 3.94 3.2291
2023-08-08 2023-06-30 13F PAYCHEX COM 704326107 377,971 -6,262 -1.63 42,284 -3.97 2.9558
2023-04-28 2023-03-31 13F PAYCHEX COM 704326107 384,233 -626 -0.16 44,029 -1.00 3.0772
2023-01-20 2022-12-31 13F PAYCHEX COM 704326107 384,859 -1,167 -0.30 44,474 2.66 3.2540
2022-11-04 2022-09-30 13F PAYCHEX COM 704326107 386,026 40 0.01 43,320 -1.43 3.5369
2022-08-01 2022-06-30 13F PAYCHEX COM 704326107 385,986 -5,072 -1.30 43,950 -17.65 3.4617
2022-04-19 2022-03-31 13F PAYCHEX COM 704326107 391,058 -4,372 -1.11 53,370 -1.13 3.6218
2022-02-08 2021-12-31 13F PAYCHEX COM 704326107 395,430 261 0.07 53,980 21.47 3.4725
2021-10-28 2021-09-30 13F PAYCHEX COM 704326107 395,169 2,854 0.73 44,440 5.56 3.1020
2021-07-28 2021-06-30 13F PAYCHEX COM 704326107 392,315 5,311 1.37 42,100 10.99 2.9134
2021-04-22 2021-03-31 13F PAYCHEX COM 704326107 387,004 -1,854 -0.48 37,930 4.69 2.8358
2021-01-29 2020-12-31 13F PAYCHEX COM 704326107 388,858 3,076 0.80 36,230 17.74 2.8428
2020-11-03 2020-09-30 13F PAYCHEX COM 704326107 385,782 10,428 2.78 30,770 8.23 2.7714
2020-07-24 2020-06-30 13F PAYCHEX COM 704326107 375,354 4,129 1.11 28,430 21.72 2.7507
2020-05-14 2020-03-31 13F PAYCHEX COM 704326107 371,225 -12,839 -3.34 23,357 -28.50 2.7540
2020-02-07 2019-12-31 13F PAYCHEX COM 704326107 384,064 6,313 1.67 32,668 4.48 2.9760
2019-10-30 2019-09-30 13F PAYCHEX COM 704326107 377,751 -37 -0.01 31,266 0.57 3.0763
2019-07-29 2019-06-30 13F PAYCHEX COM 704326107 377,788 -3,594 -0.94 31,088 1.64 3.0729
2019-04-26 2019-03-31 13F PAYCHEX COM 704326107 381,382 190 0.05 30,587 23.16 3.1854
2019-02-12 2018-12-31 13F PAYCHEX COM 704326107 381,192 -1,290 -0.34 24,835 -11.84 2.9392
2018-11-02 2018-09-30 13F PAYCHEX COM 704326107 382,482 -3,410 -0.88 28,170 6.80 2.9030
2018-07-27 2018-06-30 13F PAYCHEX COM 704326107 385,892 -1,690 -0.44 26,376 10.49 2.8979
2018-05-04 2018-03-31 13F/A-1 PAYCHEX COM 704326107 387,582 -1,616 -0.42 23,871 -9.91 2.6627
2018-05-04 2018-03-31 13F PAYCHEX COM 704326107 387,582 -1,616 23,871
2018-02-05 2017-12-31 13F PAYCHEX COM 704326107 389,198 1,344 0.35 26,497 13.94 2.8285
2017-11-03 2017-09-30 13F PAYCHEX COM 704326107 387,854 5,528 1.45 23,256 6.83 2.6109
2017-07-27 2017-06-30 13F PAYCHEX COM 704326107 382,326 2,310 0.61 21,770 -2.74 2.5724
2017-04-28 2017-03-31 13F PAYCHEX COM 704326107 380,016 -6,782 -1.75 22,383 -4.95 2.7646
2017-02-02 2016-12-31 13F PAYCHEX COM 704326107 386,798 -502 -0.13 23,548 5.06 3.0519
2016-10-24 2016-09-30 13F PAYCHEX COM 704326107 387,300 -3,430 -0.88 22,413 -3.59 2.9445
2016-07-28 2016-06-30 13F PAYCHEX COM 704326107 390,730 2,669 0.69 23,248 10.92 3.2543
2016-05-06 2016-03-31 13F PAYCHEX COM 704326107 388,061 6,538 1.71 20,959 3.87 3.0332
2016-02-03 2015-12-31 13F PAYCHEX COM 704326107 381,523 1,767 0.47 20,179 11.56 3.0674
2015-11-02 2015-09-30 13F PAYCHEX COM 704326107 379,756 5,909 1.58 18,088 3.21 3.0335
2015-08-03 2015-06-30 13F PAYCHEX COM 704326107 373,847 5,399 1.47 17,526 -4.13 2.6810
2015-05-15 2015-03-31 13F PAYCHEX COM 704326107 368,448 9,510 2.65 18,281 10.31 2.7947
2015-02-05 2014-12-31 13F PAYCHEX COM 704326107 358,938 -873 -0.24 16,572 4.20 2.5615
2014-11-10 2014-09-30 13F PAYCHEX COM 704326107 359,811 6,591 1.87 15,904 8.34 2.4989
2014-08-14 2014-06-30 13F PAYCHEX COM 704326107 353,220 625 0.18 14,680 -2.27 2.2147
2014-05-06 2014-03-31 13F PAYCHEX COM 704326107 352,595 2,785 0.80 15,021 -5.69 2.3579
2014-02-06 2013-12-31 13F PAYCHEX COM 704326107 349,810 1,655 0.48 15,927 12.57 2.5877
2013-11-04 2013-09-30 13F PAYCHEX COM 704326107 348,155 -100 -0.03 14,149 11.28 2.5231
2013-08-01 2013-06-30 13F PAYCHEX COM 704326107 348,255 348,255 12,715 2.4083
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.