Southwest Gas (SWX) SVP disposes shares to cover tax on awards

Rhea-AI Filing Summary

Southwest Gas Holdings SVP Amy L. Timperley reported a tax-withholding disposition of 1,182.367 shares of common stock on Performance Stock Units that settled after meeting performance goals, at $80.02 per share. After this, she held 15,118.242 shares directly and 8,975.446 shares indirectly through a 401(k).

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

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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^*

Timperley Amy L.

(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)
	SVP/Chief Reg. & Public Aff.

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		1,182.367(1)	D	$80.02	15,118.242	D
Common Stock								8,975.446	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.
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FAQ

What insider transaction did Southwest Gas (SWX) report for Amy L. Timperley?

Southwest Gas reported that SVP Amy L. Timperley had 1,182.367 common shares disposed to cover taxes on vested Performance Stock Units at $80.02 per share. This was a tax-withholding event, not an open-market purchase or sale, tied to satisfied performance goals.

Was the Southwest Gas (SWX) insider transaction an open-market sale?

The transaction was a tax-withholding disposition, coded as payment of tax liability by delivering securities, rather than an open-market sale. Shares were withheld upon settlement of Performance Stock Units after performance goals were met, according to the accompanying explanatory footnote.

How many Southwest Gas (SWX) shares does Amy L. Timperley hold after the transaction?

After the tax-withholding disposition, Amy L. Timperley held 15,118.242 Southwest Gas common shares directly. She also had an additional 8,975.446 shares reported as indirectly owned through a 401(k) plan, reflecting her ongoing equity exposure to the company following the withholding event.

What price per share was used in the Southwest Gas (SWX) tax-withholding transaction?

The tax-withholding disposition used a reference price of $80.02 per Southwest Gas common share. This price applied to the 1,182.367 shares withheld to satisfy tax obligations generated when Performance Stock Units settled after the company’s performance goals had been achieved.

What do the Performance Stock Units in the Southwest Gas (SWX) filing represent?

The Performance Stock Units represent equity awards that delivered shares once specified performance goals were satisfied. When those units settled, Southwest Gas withheld 1,182.367 shares from Amy L. Timperley to cover related tax liabilities, as described in the footnote to the Form 4 filing.