Randy F. Lieble - 11 Mar 2026 Form 4 Insider Report for NATIONAL PRESTO INDUSTRIES INC (NPK)

Reporting relationship: Director
Issuer ticker: NPK
Reported as of: 11 Mar 2026
Net transaction value: -$347,975
SEC form: 4
Accepted by SEC: 11 Mar 2026, 12:57:04 UTC
Prior SEC filing: 02 Jan 2026
Source filing: View source filing
Reporting owner signature: /s/ Ann Werner by Power of Attorney

Key filing fact

Randy F. Lieble filed Form 4 for NATIONAL PRESTO INDUSTRIES INC (NPK) on 11 Mar 2026.

Key facts

This page summarizes Randy F. Lieble's Form 4 filing for NATIONAL PRESTO INDUSTRIES INC (NPK).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 11 Mar 2026, 12:57.

Change

Previous filing in this sequence was filed on 02 Jan 2026.
Current net transaction value: -$347,975.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001229255 Primary reporting owner

LIEBLE RANDY F

Relationship: Director
Address: 3925 N HASTINGS WAY, EAU CLAIRE
Signature: /s/ Ann Werner by Power of Attorney
Signature date: 11 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

NPK transaction

Common stock $1.00 par value

Sale

Transaction value: $347,975
Shares: -2,417
Change %: -32%
Price: $143.97
Shares after: 5,222
Date: 11 Mar 2026
Ownership: Direct
Footnotes: F1

NPK holding

Common stock $1.00 par value

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 599
Date: 11 Mar 2026
Ownership: Lieble Family Trust DTD 7/19/2018

NPK holding

Common stock $1.00 par value

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 978
Date: 11 Mar 2026
Ownership: IRA

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 1 footnote

Footnote F1

The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2025.