THOMAS ANTHONY DINEEN - 01 Mar 2026 Form 4 Insider Report for STURM RUGER & CO INC (RGR)

Role: Treasurer and CFO
Signature: /s/ David J. Muhlenberg, attorney-in-fact
Issuer symbol: RGR
Transactions as of: 01 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 04 Mar 2026, 17:03:39 UTC
Previous filing: 05 Mar 2025
Next filing: 10 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
DINEEN THOMAS ANTHONY	Treasurer and CFO	C/O STURM, RUGER & COMPANY, INC., ONE LACEY PLACE, SOUTHPORT	/s/ David J. Muhlenberg, attorney-in-fact	04 Mar 2026	0001242561

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	RGR	Common Stock	Disposed to Issuer		-8,485	-24%	$37.44^*	27,480	01 Mar 2026	with spouse	F1
transaction	RGR	Common Stock	Options Exercise		+8,485	+31%	$37.44^*	35,965	01 Mar 2026	with spouse	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	RGR	Restricted Stock Units	Options Exercise		-8,485	-27%	$0.000000^*	23,022	01 Mar 2026	Common Stock	8,485		Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On June 8, 2023, the reporting person was granted 8,485 cash-settled restricted stock units pursuant to Rule 16b-3, which vested on March 1, 2026. Each cash-settled restricted stock unit represents the contingent right to receive the fair market value of one share of the issuer's common stock on the date of vesting. Vesting of cash-settled restricted stock units is reported in Table I as a deemed acquisition and disposition of the number of shares of common stock underlying such vested restricted stock units.

Content

On June 8, 2023, the reporting person was granted 8,485 cash-settled restricted stock units pursuant to Rule 16b-3, which vested on March 1, 2026. Each cash-settled restricted stock unit represents the contingent right to receive the fair market value of one share of the issuer's common stock on the date of vesting. Vesting of cash-settled restricted stock units is reported in Table I as a deemed acquisition and disposition of the number of shares of common stock underlying such vested restricted stock units.