Southwest Gas CEO disposes shares for tax withholding

Southwest Gas Holdings President and CEO Karen S. Haller reported a tax-withholding disposition of 13,105.277 shares of common stock at $80.02 per share.

Rhea-AI Filing Summary

Southwest Gas Holdings President and CEO Karen S. Haller reported a tax-withholding disposition of 13,105.277 shares of common stock at $80.02 per share. These shares were withheld to cover taxes on settled performance stock units. After this, she directly holds 185,798.222 shares, with additional indirect holdings of 996 shares through a spouse and 2,498.714 shares through a 401(k).

Insider Trade Summary

Exercise Price or Tax Liability: 13,105.277 shares

Exercise Price or Tax Liability 3 txns

Insider Haller Karen S

Role President and CEO

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	13,105.277	$80.02	$1.05M
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 185,798.222 shares (Direct); Common Stock — 996 shares (Indirect, By Spouse); Common Stock — 2,498.714 shares (Indirect, By 401(k))

Footnotes (1)

1. F1. Shares withheld to cover tax on settled Performance Stock Units delivered as a result of satisfaction of performance goals and reported on February 23, 2026.

FAQ

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

What did Southwest Gas (SWX) CEO Karen S. Haller report in this Form 4 filing?

Karen S. Haller reported a tax-withholding disposition of 13,105.277 Southwest Gas common shares at $80.02 per share. The shares were withheld to cover taxes on settled performance stock units that were delivered after performance goals were satisfied.

Was the Southwest Gas (SWX) CEO’s Form 4 transaction an open-market sale?

The transaction was not an open-market sale; it was a tax-withholding disposition coded “F.” Shares were withheld by the company to satisfy tax obligations arising from the settlement of performance stock units after performance criteria were met.

How many Southwest Gas (SWX) shares does CEO Karen S. Haller hold after the reported transaction?

After the tax-withholding disposition, Karen S. Haller directly holds 185,798.222 Southwest Gas common shares. She also has indirect ownership of 996 shares through her spouse and 2,498.714 shares through a 401(k) account, as reported in the filing.

What is the significance of the $80.02 price in the Southwest Gas (SWX) Form 4?

The $80.02 figure represents the price per share used for the 13,105.277 shares withheld. This price is applied to calculate the value of shares used to cover the CEO’s tax liability on settled performance stock units.

What do the indirect Southwest Gas (SWX) holdings reported for the CEO represent?

The filing shows indirect ownership of 996 Southwest Gas shares held by the CEO’s spouse and 2,498.714 shares held through a 401(k) plan. These positions are reported separately from her direct beneficial ownership of 185,798.222 shares.

Why were Southwest Gas (SWX) performance stock units mentioned in the CEO’s Form 4?

The performance stock units are mentioned because the tax-withholding disposition relates to their settlement. Shares were delivered after performance goals were satisfied, and a portion, 13,105.277 shares, was withheld to cover the resulting tax obligations.

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

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Accepted by SEC EDGAR 03/03/2026 - 07:02 PM EST Learn about SEC filing dates

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).

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^*

Haller Karen S

(Last) (First) (Middle)

8360 S. DURANGO DR.

(Street)

LAS VEGAS NV 89113

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Southwest Gas Holdings, Inc. [ SWX ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026

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	02/27/2026		F		13,105.277(1)	D	$80.02	185,798.222	D
Common Stock								996	I	By Spouse
Common Stock								2,498.714	I	By 401(k)

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. Shares withheld to cover tax on settled Performance Stock Units delivered as a result of satisfaction of performance goals and reported on February 23, 2026.

Remarks:

	Catherine M. Mazzeo, POA	03/03/2026
	** 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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