144 0001778495 XXXXXXXX LIVE 0000080172 NATIONAL PRESTO INDUSTRIES INC 001-02451 3925 N HASTINGS WAY EAU CLAIRE WI 54703 7158392121 PEUSE DAVID J (NPK) Officer Common Stock Fidelity Investments

PO Box 770001 Cincinnati OH 45277-0026

500 70077.50 7123717 03/17/2026 NYSE Common Stock 03/31/2020 401K Employer Stock National Presto Industries, Inc. N 500 03/31/2020 401K payroll deduction N David J. Peuse

3925 N. Hastings Way Eau Claire, WI 54703

Common Stock 03/15/2026 78 10263.24 The securities to be sold were acquired on various dates during the period 7/31/2000 through 03/31/2020 pursuant to the company match feature of the issuer's 401K and related dividends. 03/17/2026 /s/ Ann Werner by Power of Attorney