13D Filings
Southwest Gas Holdings, Inc.
SWX
Amendment
Ownership

8.36%

Total Shares

6,032,604

Issuer CIK

1692115

CUSIP

844895102

Event Date

Nov 25, 2025

Accepted

Nov 26, 2025, 04:29 PM

Reporting Persons (11)
Joint Filing

This is a joint filing. The reported shares may overlap between reporting persons and should not be summed.

NameType% of ClassAggregateSole VotingShared Voting
Carl C. Icahn
Individual
8.36%6,032,60406,032,604
Icahn Capital LP
Partnership
8.36%6,032,60406,032,604
IPH GP LLC
Other
8.36%6,032,60406,032,604
Icahn Enterprises Holdings L.P.
Partnership
8.36%6,032,60406,032,604
Icahn Enterprises G.P. Inc.
CO
8.36%6,032,60406,032,604
Beckton Corp.
CO
8.36%6,032,60406,032,604
Icahn Partners LP
Partnership
4.74%3,419,1673,419,1673,419,167
Icahn Onshore LP
Partnership
4.74%3,419,16703,419,167
Icahn Offshore LP
Partnership
3.62%2,613,43702,613,437
Icahn Partners Master Fund LP
Partnership
3.62%2,613,4372,613,4372,613,437
IEP Utility Holdings LLC
Other
0.00%000
Disclosure Items (4)

Security Title

Common Stock, Par Value $1.00 per share

Issuer Name

Southwest Gas Holdings, Inc.

Issuer Address

C/O SOUTHWEST GAS CORPORATION, LAS VEGAS, NV, 89113

Item 4 of the Schedule 13D is hereby amended by adding the following: In connection with the execution of the Amended and Restated Cooperation Agreement, dated as of October 14, 2025 (referred to as the "2025 Agreement"), the Issuer and the Reporting Persons had previously agreed to enter into a customary form of registration rights agreement with respect to the shares of Common Stock beneficially owned by the Reporting Persons. On November 26, 2025, the Issuer and the Reporting Persons entered into a Registration Rights Agreement (the "Registration Rights Agreement"), pursuant to which the Issuer granted certain customary shelf, underwritten offering and piggy-back registration rights to the Reporting Persons subject to the terms and conditions set forth therein. The Registration Rights Agreement supersedes the registration rights described in Exhibit B of the 2025 Agreement. The foregoing description of the Registration Rights Agreement is qualified in its entirety by reference to the Registration Rights Agreement, a copy of which is included hereto as Exhibit 8.

The information set forth in Item 4 of this Schedule 13D is hereby incorporated by reference into this Item 6.

Item 7 of the Schedule 13D is hereby amended by the addition of the following exhibit: Exhibit 8. Registration Rights Agreement, dated November 26, 2025, by and among Southwest Gas Holdings, Inc. and the Reporting Persons (incorporated by reference to Exhibit 10.1 to Southwest Gas Holdings, Inc.'s Current Report on Form 8-K filed by with the Securities and Exchange Commission on November 26, 2025).

Southwest Gas Holdings, Inc. — Schedule 13D | 13D Filings