X0508 4 2025-11-12 0000076334 Parker-Hannifin Corp PH 0002004436 Reidy Jay 6035 PARKLAND BOULEVARD CLEVELAND OH 44124 0 1 0 0 VP & Pres.- Aerospace Grp. 0 Common Stock 2025-11-12 4 M 0 1080 296 A 3163 D Common Stock 2025-11-12 4 F 0 689 863.62 D 2474 D Common Stock 2025-11-12 4 S 0 391 863.62 D 2083 D Common Stock 167.97 I Parker Retirement Savings Plan Stock Appreciation Rights 296 2025-11-12 4 M 0 1080 0 D 2022-08-11 2031-08-10 Common Stock 1080 0 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $863.61 to $864.56, inclusive. The reporting person undertakes to provide Parker-Hannifin Corporation, any security holder of Parker-Hannifin Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in Footnote 1 to this Form 4. The balance has been updated to no longer include 19.83 shares of phantom stock in the Savings Restoration Plan that have historically been reported in Table I but instead were reportable in Table II. Each share of phantom stock that was acquired under the Savings Restoration Plan is the economic equivalent of one common share and is settled in cash. The shares of phantom stock generally become payable following the reporting person's separation from service. /s/ Joseph R. Leonti, Attorney-In-Fact 2025-11-14