Paychex, Inc.
US ˙ NasdaqGS ˙ US7043261079

SecurityPAYX / Paychex, Inc.
InstitutionCoston, McIsaac & Partners
Latest Disclosed Ownership47,291 shares
Latest Disclosed Value $ 4,356
Coston, McIsaac & Partners reports 17.70% increase in ownership of PAYX / Paychex, Inc.

On April 22, 2026 - Coston, McIsaac & Partners filed a 13F-HR form disclosing ownership of 47,291 shares of Paychex, Inc. (US:PAYX) valued at $4,356,447 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 40,178 shares of Paychex, Inc.. This represents a change in shares of 17.70% during the quarter. The current value of the position is $4,754,164 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)
2026-04-22 2026-03-31 13F PAYCHEX COMMON STOCK 704326107 47,291 7,113 17.70 4 0.00 0.9832
2026-02-03 2025-12-31 13F PAYCHEX COMMON STOCK 704326107 40,178 -2,217 -5.23 5 -20.00 1.0460
2025-11-05 2025-09-30 13F PAYCHEX COMMON STOCK 704326107 42,395 833 2.00 5 -16.67 1.2793
2025-08-12 2025-06-30 13F PAYCHEX COMMON STOCK 704326107 41,562 207 0.50 6 0.00 1.5659
2025-05-13 2025-03-31 13F PAYCHEX COMMON STOCK 704326107 41,355 -156 -0.38 6 20.00 1.8616
2025-01-23 2024-12-31 13F PAYCHEX COMMON STOCK 704326107 41,511 -475 -1.13 6 0.00 1.7248
2024-10-22 2024-09-30 13F PAYCHEX COMMON STOCK 704326107 41,986 1,114 2.73 6 25.00 1.5896
2024-07-31 2024-06-30 13F PAYCHEX COMMON STOCK 704326107 40,872 1,298 3.28 5 0.00 1.5273
2024-04-17 2024-03-31 13F PAYCHEX COMMON STOCK 704326107 39,574 1,181 3.08 5 0.00 1.5607
2024-01-23 2023-12-31 13F PAYCHEX COMMON STOCK 704326107 38,393 1,108 2.97 5 0.00 1.5923
2023-11-14 2023-09-30 13F PAYCHEX COMMON STOCK 704326107 37,285 2,124 6.04 4 33.33 1.6306
2023-08-01 2023-06-30 13F PAYCHEX COMMON STOCK 704326107 35,161 1,702 5.09 4 0.00 1.3531
2023-04-19 2023-03-31 13F PAYCHEX COMMON STOCK 704326107 33,459 1,892 5.99 4 0.00 1.4270
2023-02-09 2022-12-31 13F PAYCHEX COMMON STOCK 704326107 31,567 2,602 8.98 4 -99.91 1.4196
2022-10-31 2022-09-30 13F PAYCHEX COMMON STOCK 704326107 28,965 3,048 11.76 3,250 10.13 1.4830
2022-09-21 2022-06-30 13F PAYCHEX COMMON STOCK 704326107 25,917 25,917 2,951 1.7829
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.