Paychex, Inc.
US ˙ NasdaqGS ˙ US7043261079

SecurityPAYX / Paychex, Inc.
InstitutionCostello Asset Management, INC
Latest Disclosed Ownership1,765 shares
Latest Disclosed Value $ 162,592
Costello Asset Management, INC reports 60.94% decrease in ownership of PAYX / Paychex, Inc.

On April 30, 2026 - Costello Asset Management, INC filed a 13F-HR form disclosing ownership of 1,765 shares of Paychex, Inc. (US:PAYX) valued at $162,592 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 4,519 shares of Paychex, Inc.. This represents a change in shares of -60.94% during the quarter. The current value of the position is $177,435 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)
2026-04-30 2026-03-31 13F PAYCHEX COM 704326107 1,765 -2,754 -60.94 163 -67.98 0.0562
2026-02-03 2025-12-31 13F PAYCHEX COM 704326107 4,519 190 4.39 507 -7.66 0.1676
2025-11-06 2025-09-30 13F PAYCHEX OM 704326107 4,329 2,035 88.71 549 64.56 0.1837
2025-07-24 2025-06-30 13F PAYCHEX COM 704326107 2,294 -7,705 -77.06 334 -78.40 0.1254
2025-05-09 2025-03-31 13F PAYCHEX COM 704326107 9,999 -395 -3.80 1,543 5.83 0.6258
2025-01-24 2024-12-31 13F PAYCHEX COM 704326107 10,394 -11,106 -51.66 1,457 -49.50 0.9640
2024-11-01 2024-09-30 13F PAYCHEX COM 704326107 21,500 -6,910 -24.32 2,885 -14.34 1.9295
2024-08-01 2024-06-30 13F PAYCHEX COM 704326107 28,410 -121 -0.42 3,368 -3.85 2.5109
2024-04-24 2024-03-31 13F PAYCHEX COM 704326107 28,531 -115 -0.40 3,504 2.70 2.5065
2024-01-29 2023-12-31 13F PAYCHEX COM 704326107 28,646 -712 -2.43 3,412 0.77 2.8305
2023-11-08 2023-09-30 13F PAYCHEX COM 704326107 29,358 560 1.94 3,386 5.09 3.1122
2023-07-28 2023-06-30 13F PAYCHEX COM 704326107 28,798 8,376 41.01 3,222 37.65 2.7589
2023-05-05 2023-03-31 13F PAYCHEX COM 704326107 20,422 16,572 430.44 2,340 427.03 2.4087
2023-02-02 2022-12-31 13F PAYCHEX COM 704326107 3,850 -8,227 -68.12 445 -67.23 0.4009
2022-11-03 2022-09-30 13F PAYCHEX COM 704326107 12,077 -2,533 -17.34 1,355 -18.57 1.2779
2022-07-22 2022-06-30 13F PAYCHEX COM 704326107 14,610 -3,701 -20.21 1,664 -33.41 1.4391
2022-04-26 2022-03-31 13F PAYCHEX COM 704326107 18,311 -2,721 -12.94 2,499 -12.96 1.7149
2022-01-28 2021-12-31 13F PAYCHEX COM 704326107 21,032 -218 -1.03 2,871 20.13 1.7541
2021-10-29 2021-09-30 13F PAYCHEX COM 704326107 21,250 -5,452 -20.42 2,390 -16.58 1.5279
2021-08-05 2021-06-30 13F/A-1 PAYCHEX COM 704326107 26,702 154 0.58 2,865 10.11 1.8780
2021-08-05 2021-06-30 13F PAYCHEX COM 704326107 26,548 0 2,602 1.7981
2021-05-03 2021-03-31 13F PAYCHEX COM 704326107 26,548 22,464 550.05 2,602 582.94 1.7981
2021-02-05 2020-12-31 13F PAYCHEX COM 704326107 4,084 328 8.73 381 27.00 0.2882
2020-11-04 2020-09-30 13F PAYCHEX COM 704326107 3,756 3 0.08 300 5.63 0.2641
2020-07-28 2020-06-30 13F PAYCHEX COM 704326107 3,753 -4,152 -52.52 284 -56.57 0.2792
2019-11-12 2019-09-30 13F PAYCHEX COM 704326107 7,905 0 0.00 654 0.62 0.7807
2019-08-12 2019-06-30 13F PAYCHEX COM 704326107 7,905 0 0.00 650 2.52 0.7398
2019-05-10 2019-03-31 13F PAYCHEX COM 704326107 7,905 -850 -9.71 634 11.23 0.7591
2019-02-08 2018-12-31 13F PAYCHEX COM 704326107 8,755 8,755 570 0.7380
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.