Company: PAYX
Filing Date: 2025-08-29
Form Type: DEF 14A
Source: 0001193125-25-191789
Chunk: 59

Company: PAYCHEX INC
Filing Date: 2025-08-29
Form: DEF 14A
Chunk 59
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 a Monte Carlo simulation, applying the following assumptions; risk-free interest rate of 4.2%; a dividend yield of 3.3%; a stock-price volatility factor of 0.24; and a measurement period of 2.9 years from the date of grant. |

| • |     | The grant-date fair value of the performance-based RSUs granted to Mr. Ante in May 2025 was $138.85 per share and was determined based on the closing price of the underlying common stock on the date of grant, adjusted for the present value of expected dividends over the performance period. |

| • |     | The grant-date fair value of the stock options granted to our NEOs (excluding Mr. Ante, who joined the Company in April 2025) in July 2024 was $27.29 and was determined using a Black-Scholes option pricing model, applying the following assumptions; risk-free interest rate of 4.2%; a dividend yield of 3.3%; a stock-price volatility factor of 0.25; and an expected option life of 6.5 years from the date of grant. |

Paychex, Inc. 2025 Proxy Statement •51

| NEO Compensation |

Option Exercises and Stock Vested in Fiscal 2025 The following table provides information about the value realized by the NEOs upon the exercise of stock options and the lapsing of the restrictions on stock awards during fiscal 2025. Certain columns in this table and the presentation of information on an award-by-awardbasis are not required by the rules relating to executive compensation disclosures and are not a substitute for the information required by Item 402 of SEC Regulation S-K,but rather are intended to provide additional information that stockholders may find useful.

| Name (a)           |     | Option Awards 
 Date of       
 Grant (b)     |           |     |    Number of 
       Shares 
  Acquired on 
 Exercise (#) 
          (c) |        |     |   |      Value Realized 
 on Exercise ($) (d) |           |     | Stock Awards  
 Date of Grant |           |     |   Number of 
      Shares 
 Acquired on 
 Vesting (#) 
         (f) |        |     |   |           Value 
     Realized on 
 Vesting ($) (g) |           |
|:-------------------|:----|:--------------|:----------|:----|-------------:|-------:|:----|:--