# EDGAR Filing Document

**Accession Number:** 0001535472
**File Stem:** 0001011438-26-000266
**Filing Date:** 2026-5
**Character Count:** 10089
**Document Hash:** 54036852dc037eaad97e91a57e486a81
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001011438-26-000266.hdr.sgml**: 20260508

**ACCESSION NUMBER**: 0001011438-26-000266

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260508

**DATE AS OF CHANGE**: 20260508

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Southwest Gas Holdings, Inc.
- **CENTRAL INDEX KEY:** 0001692115
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS TRANSMISSION & DISTRIBUTION [4923]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 813881866
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-89940
- **FILM NUMBER:** 26958253

**BUSINESS ADDRESS:**
- **STREET 1:** C/O SOUTHWEST GAS CORPORATION
- **STREET 2:** 8360 S. DURANGO DRIVE
- **CITY:** LAS VEGAS
- **STATE:** NV
- **ZIP:** 89113
- **BUSINESS PHONE:** 702-876-7237

**MAIL ADDRESS:**
- **STREET 1:** C/O SOUTHWEST GAS CORPORATION
- **STREET 2:** 8360 S. DURANGO DRIVE
- **CITY:** LAS VEGAS
- **STATE:** NV
- **ZIP:** 89113
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Corvex Management LP
- **CENTRAL INDEX KEY:** 0001535472

**ORGANIZATION NAME:**
- **EIN:** 274190685
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** 667 MADISON AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10065
- **BUSINESS PHONE:** (212) 474 6700

**MAIL ADDRESS:**
- **STREET 1:** 667 MADISON AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10065

## Exhibit 99.1

Exhibit 99.1

#### Schedule of Transactions in Shares
The following table sets forth all transactions effected in the last sixty days by the Reporting Persons (on behalf of the Corvex Funds) in respect of the Shares, inclusive of any transactions effected through 4:00 p.m., New York City time, on May 8, 2026. All such transactions were sales of securities effected in the open market, and the table excludes commissions paid in per share prices.

---

| | | | |
|:---|:---|:---|:---|
| NATURE OF TRANSACTION | DATE OF<br> TRANSACTION | AMOUNT OF<br> SECURITIES | PRICE PER<br> SHARE $<sup>1</sup> |
| Sale of Common Stock | 03/09/2026 | 38600 | 87.38 |
| Sale of Common Stock | 03/10/2026 | 16173 | 87.84 |
| Sale of Common Stock | 03/11/2026 | 32600 | 87.49 |
| Sale of Common Stock | 03/12/2026 | 17727 | 87.48 |
| Sale of Common Stock | 03/13/2026 | 5402 | 88.00 |
| Sale of Common Stock | 03/16/2026 | 7623 | 88.27 |
| Sale of Common Stock | 05/06/2026 | 700000 | 90.34 |

---

(1) Other than the sale on May 6, 2026, the prices in each of the following rows are weighted average prices. Other than the sale on May 6, 2026, the Shares were sold in multiple transactions. The Reporting Persons undertake to provide the staff of the Securities and Exchange Commission, upon request, full information regarding the number of Shares sold at each separate price.

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 2)**

**Southwest Gas Holdings, Inc.**

*(Name of Issuer)*

**Common Stock, par value $1 per share**

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**Keith Meister/Patrick Dooley**<br>Corvex Management LP<br>667 Madison Avenue<br>New York NY 10065<br>(212) 474-6700

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**05/06/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Corvex Management LP** | Name of reporting person<br>**Corvex Management LP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | |
| 6 | Citizenship or place of organization<br>**DELAWARE** | Citizenship or place of organization<br>**DELAWARE** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**3618161.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**3618161.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**3618161.00** | Aggregate amount beneficially owned by each reporting person<br>**3618161.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**4.99%** | Percent of class represented by amount in Row (11)<br>**4.99%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IA** | Type of Reporting Person (See Instructions)<br>**IA** | |

---

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Keith A. Meister** | Name of reporting person<br>**Keith A. Meister** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**AF** | Source of funds (See Instructions)<br>**AF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[x] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**3618161.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**3618161.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**3618161.00** | Aggregate amount beneficially owned by each reporting person<br>**3618161.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**4.99%** | Percent of class represented by amount in Row (11)<br>**4.99%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, par value $1 per share

**(b) Name of Issuer:**
Southwest Gas Holdings, Inc.

**(c) Address of Issuer's Principal Executive Offices:**
8360 S. Durango Drive, Las Vegas, NV, 89113

This Amendment No. 2 ("Amendment No. 2") supplements the information set forth in the Schedule 13D dated October 23, 2023, and as amended by Amendment No. 1 on May 28, 2025, filed by Corvex Management LP ("Corvex") and Keith Meister ("Mr. Meister", and together with Corvex, the "Reporting Persons") with the United States Securities and Exchange Commission (the "Schedule 13D") relating to the shares of common stock, par value $1 per share (the "Shares"), of Southwest Gas Holdings, Inc., a Delaware corporation (the "Issuer"). Capitalized terms used but not defined herein shall have the meanings ascribed to them in the Schedule 13D.

The information set forth in response to each separate Item below shall be deemed to be a response to all Items where such information is relevant.

**Item 5. Interest in Securities of the Issuer**

**(a)**
Corvex may be deemed to be the beneficial owner of 3,618,161 Shares, which represent approximately 4.99% of the Issuer's outstanding Shares. By virtue of his position as control person of the general partner of Corvex, Mr. Meister may be considered to beneficially own such Shares. 

The percentage calculated in the immediately foregoing paragraph is calculated based on a total of 72,374,873 Shares outstanding as of May 1, 2026, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 5, 2026.

**(b)**
Items 7 through 10 of each of the cover pages of this Amendment No. 2 are incorporated herein by reference.

**(c)**
Except as set forth in Exhibit 99.1 attached hereto, there have been no transactions in the Shares during the sixty days prior to the date hereof by any of the Reporting Persons.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Corvex Management LP

**Signature:** /s/ Keith Meister

**Name/Title:** Keith Meister / Managing Partner

**Date:** 05/08/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Keith A. Meister

**Signature:** /s/ Keith Meister

**Name/Title:** Keith Meister / Self

**Date:** 05/08/2026