National Presto director sells 2,417 shares

National Presto Industries director Randy F. Lieble sold 2,417 shares of common stock at $143.97 per share in an open-market transaction.

Accepted by SEC EDGAR 03/11/2026 - 12:57 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

National Presto Industries director Randy F. Lieble sold 2,417 shares of common stock at $143.97 per share in an open-market transaction. The sale was made under a pre-arranged Rule 10b5-1 trading plan adopted on November 10, 2025. After the transaction, he holds 5,222 shares directly, plus 599 shares through the Lieble Family Trust and 978 shares in an IRA, indicating he retained a significant stake.

Insider Trade Summary 10b5-1

Net Seller: 2,417 shares

Net Sell 1 txn

Insider LIEBLE RANDY F

Role Director

Sold 2,417 shs ($348K)

Share of Position Sold 31.6%

Type	Security	Shares	Price	Value
Sale	Common stock $1.00 par value	2,417	$143.97	$348K
Holding	Common stock $1.00 par value	--	--	--
Holding	Common stock $1.00 par value	--	--	--

Holdings After Transaction: Common stock $1.00 par value — 5,222 shares (Direct); Common stock $1.00 par value — 599 shares (Indirect, Lieble Family Trust DTD 7/19/2018); Common stock $1.00 par value — 978 shares (Indirect, IRA)

Holdings Before and After: Common stock $1.00 par value, 7,639 to 5,222 shares (Direct)

Footnotes (1)

1. F1. The sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2025.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did NPK director Randy F. Lieble report?

Randy F. Lieble reported selling 2,417 shares of National Presto Industries common stock at $143.97 per share. The transaction was an open-market sale and reflects a partial reduction of his holdings rather than a full exit from his position.

Was the NPK share sale by Randy F. Lieble pre-planned?

Yes. The 2,417-share sale was effected under a Rule 10b5-1 trading plan adopted on November 10, 2025. Such plans schedule trades in advance, making the timing more routine and less reflective of short-term views on the stock.

How many NPK shares does Randy F. Lieble hold after the sale?

Following the sale, Randy F. Lieble holds 5,222 National Presto Industries shares directly. He also has indirect ownership of 599 shares via the Lieble Family Trust and 978 shares in an IRA, showing he maintains a meaningful overall stake.

What type of security did Randy F. Lieble sell in NPK?

He sold National Presto Industries common stock with a $1.00 par value. The reported transaction involved 2,417 common shares at a price of $143.97 each, executed as an open-market or private sale transaction as defined in the filing data.

Does the Form 4 show any NPK option exercises or derivative trades?

No derivative transactions are listed in the provided data. The derivativeSummary is empty and exerciseCounts are zero, indicating the reported activity centers solely on common stock holdings, not on options, warrants, or other derivative securities.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

LIEBLE RANDY F

(Last) (First) (Middle)

3925 N HASTINGS WAY

(Street)

EAU CLAIRE WI 54703

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
NATIONAL PRESTO INDUSTRIES INC [ NPK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/11/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common stock $1.00 par value	03/11/2026		S(1)		2,417	D	$143.97	5,222	D
Common stock $1.00 par value								599	I	Lieble Family Trust DTD 7/19/2018
Common stock $1.00 par value								978	I	IRA

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

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

	/s/ Ann Werner by Power of Attorney	03/11/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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