[8-K] Centuri Holdings, Inc. Reports Material Event

Rhea-AI Filing Summary

Centuri Holdings has announced significant changes in its ownership structure through a major public offering and private placement. The company's major stockholder, Southwest Gas Holdings, completed a public offering of 11,212,500 shares at $20.75 per share, including the full exercise of underwriters' over-allotment option, generating net proceeds of approximately $225 million.

Additionally, Southwest Gas Holdings entered into an agreement with Icahn Investors (affiliated with Carl C. Icahn) for a concurrent private placement of 1,060,240 shares at the same price, expected to generate about $22 million. This private placement is pending HSR Act clearance and must close by July 9, 2025.

Key ownership changes:

• Southwest Gas Holdings' ownership reduced to 53.3% after public offering
• Will further decrease to 52.1% after Icahn private placement completion
• 45-day lock-up period implemented for insiders and major shareholders
• Icahn Investors granted registration rights for resale after 181 days

Positive

• Carl Icahn's investment entities (Icahn Investors) are acquiring 1,060,240 shares through a private placement at $20.75 per share, signaling confidence from a major investor
• The public offering was successful with full exercise of over-allotment option, raising approximately $225 million and indicating strong market demand

Negative

• Southwest Gas Holdings (Selling Stockholder) is reducing its ownership stake from 53.3% to 52.1%, though maintaining majority control
• Implementation of a 45-day lock-up period restricts stock sales by insiders and major shareholders, potentially limiting short-term trading flexibility

Insights

Corporate Governance Specialist

Southwest Gas selling significant Centuri Holdings stake while maintaining control; Icahn entities increase investment through private placement.

This 8-K discloses a substantial ownership shift at Centuri Holdings through two key transactions. Southwest Gas Holdings has completed a public offering of 11.2 million shares (including 1.46 million from underwriters' overallotment) at $20.75 per share, generating approximately $225 million in net proceeds. Concurrently, Southwest entered an agreement to sell an additional 1.06 million shares to Icahn-affiliated entities in a private placement at the same price, potentially yielding another $22 million.

While this represents a significant divestiture, Southwest Gas maintains firm control with 53.3% ownership post-offering, which would slightly decrease to 52.1% if the Icahn transaction closes. The Icahn placement requires HSR Act regulatory clearance and includes registration rights allowing future resale of these restricted shares. The governance implications are nuanced - Southwest retains majority control while raising substantial capital, while Icahn entities increase their position through a private transaction requiring regulatory approval. Both Southwest and Icahn agreed to 45-day lock-up periods, temporarily restricting further transactions.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported): June 13, 2025

Centuri Holdings, Inc.

(Exact Name of Registrant as Specified in its Charter)

Delaware			001-42022			93-1817741
(State or Other Jurisdiction of Incorporation)			(Commission File Number)			(IRS Employer Identification No.)

19820 North 7th Avenue, Suite 120

Phoenix, Arizona 85027

(Address of Principal Executive Offices)

Registrant’s telephone number, including area code: (623) 582-1235

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of exchange on which registered

Common Stock, $0.01 per share par value

CTRI

New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Introductory Note

On June 18, 2025, Southwest Gas Holdings, Inc. (the “Selling Stockholder”) completed a public offering (the “Offering”) of 11,212,500 shares of its holdings of Centuri Holdings, Inc. (the “Company”) common stock, par value $0.01 per share (“Centuri Common Stock”), including the underwriters’ full exercise of their option to purchase an additional 1,462,500 shares to cover over-allotments. The Offering was made under a prospectus supplement specifically relating to the Offering dated June 16, 2025 (the “Prospectus Supplement”) and related prospectus filed with the Securities and Exchange Commission pursuant to the Company’s effective shelf registration statement on Form S-3, as amended (Registration No. 333-287200). The price to the public in the Offering was $20.75 per share (the “Offering Price”). The Selling Stockholder received net proceeds of approximately $225 million, after deducting underwriter discounts and commissions. The Company did not receive any of the proceeds from the sale of shares by the Selling Stockholder.

As described in the Prospectus Supplement, on June 13, 2025, the Selling Stockholder entered into a Common Stock Purchase Agreement (the “Stock Purchase Agreement”) with Icahn Partners LP and Icahn Partners Master Fund LP, investment entities affiliated with Carl C. Icahn (collectively, the “Icahn Investors”), pursuant to which the Company agreed to sell an aggregate of 1,060,240 shares of its holdings of Centuri Common Stock in a concurrent private placement to the Icahn Investors at the Offering Price (the “Concurrent Private Placement”). The closing of the Concurrent Private Placement is contingent upon the expiration or early termination of the applicable waiting period relating to the premerger notification and report forms required under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, including the rules and regulations thereunder (the “HSR Act”), and is expected to occur on the first business day after the expiration or early termination of such waiting period; provided that, if the closing has not occurred by July 9, 2025, the Stock Purchase Agreement will terminate without the sale of shares to the Icahn Investors. The sale of the Centuri Common Stock in the Concurrent Private Placement, if effected, will not be registered under the Securities Act of 1933, as amended (the “Securities Act”). The net proceeds to the Selling Stockholder from the Concurrent Private Placement are expected to be approximately $22 million. The Company will not receive any of the proceeds from the Concurrent Private Placement by the Selling Stockholder.

As of the closing of the Offering, the Selling Stockholder owns 47,245,950 shares of Centuri Common Stock, or approximately 53.3% of the total outstanding shares of Centuri Common Stock. Upon completion of the Concurrent Private Placement, if effected, the Selling Stockholder will own 46,185,710 shares of Centuri Common Stock, or approximately 52.1% of the total outstanding shares of Centuri Common Stock.

Item 1.01    Entry Into a Material Definitive Agreement.

In connection with the Concurrent Private Placement, the Company agreed to grant to the Icahn Investors certain resale registration rights, as set forth in that certain Registration Rights Letter Agreement, dated as of June 13, 2025, by and among the Company and the Icahn Investors (the “Icahn Letter Agreement”). Pursuant to the terms of the Icahn Letter Agreement, subject to certain circumstances, the Company agreed to register the resale of any shares sold to the Icahn Investors in the Concurrent Private Placement no later than the 181st day after May 22, 2025, which was the closing date of a previous private placement of Centuri Common Stock by the Selling Stockholders to the Icahn Investors. The Icahn Investors will be permitted to make sales of common stock from time to time under the resale registration statement but do not have rights to demand underwritten offerings or “piggyback” registration.

A copy of the Icahn Letter Agreement is filed as Exhibit 10.1 hereto and is incorporated herein by reference. The foregoing descriptions of the Icahn Letter Agreement do not purport to be complete and are qualified in their entirety by reference to such exhibit.

Item 8.01     Other Events.

On June 16, 2025, in connection with the Offering, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with J.P. Morgan Securities LLC, as representative (the “Representative”) of the several underwriters named therein (collectively, the “Underwriters”) and the Selling Stockholder.

Under the terms of the Underwriting Agreement, the Company, the Company’s directors and executive officers, the Selling Stockholder, the Icahn Investors and certain of their respective affiliates also agreed not to sell or transfer any Centuri Common Stock without first obtaining the written consent of the Representative, subject to certain exceptions, for 45 days after the date of the Prospectus Supplement.

The Underwriting Agreement contains customary representations, warranties, covenants, indemnification obligations of the Company, the Selling Stockholder and the Underwriters, including for liabilities under the Securities Act, and other obligations of the parties. The representations, warranties and covenants contained in the Underwriting Agreement were made only for purposes of such agreement and as of specific dates, were solely for the benefit of the parties to such agreement, and may be subject to limitations agreed upon by the contracting parties. A copy of the Underwriting Agreement is filed as Exhibit 1.1 hereto and is incorporated herein by reference. The foregoing descriptions of the Underwriting Agreement and lock-up arrangements do not purport to be complete and are qualified in their entirety by reference to such exhibit.

A copy of the opinion of Morrison & Foerster LLP relating to the validity of the securities issued and sold in the Offering is filed herewith as Exhibit 5.1.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.						Description
1.1+						Underwriting Agreement, dated as of June 16, 2025, by and among Centuri Holdings Inc., Southwest Gas Holdings, Inc. and J.P. Morgan Securities LLC, as representative of the underwriters named therein.
5.1						Opinion of Morrison & Foerster LLP.
10.1*						Registration Rights Letter Agreement, dated as of June 13, 2025, by and among Centuri Holdings Inc., Icahn Partners LP and Icahn Partners Master Fund LP.
23.1						Consent of Morrison & Foerster LLP (included in Exhibit 5.1).
104						Cover Page Interactive Data File, formatted in Inline XBRL.

+ Certain of the schedules and attachments to this exhibit have been omitted in accordance with Regulation S-K, Item 601(a)(5). The registrant hereby undertakes to provide further information regarding such omitted materials to the SEC upon request.

* Certain personal information in this exhibit has been omitted in accordance with Regulation S-K Item 601(a)(6).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

CENTURI HOLDINGS, INC.
Date: June 18, 2025			By:			/s/ Gregory A. Izenstark
						Gregory A. Izenstark
						Executive Vice President and Chief Financial Officer

FAQ

How many shares of CTRI stock did Southwest Gas Holdings sell in its June 2025 public offering?

Southwest Gas Holdings sold 11,212,500 shares of CTRI common stock in the public offering, which included 1,462,500 shares from the underwriters' full exercise of their over-allotment option. The offering price was $20.75 per share, generating net proceeds of approximately $225 million for Southwest Gas Holdings.

What is Southwest Gas Holdings' remaining ownership stake in CTRI after the June 2025 stock sale?

After the public offering, Southwest Gas Holdings owns 47,245,950 shares of CTRI common stock, representing approximately 53.3% of total outstanding shares. This stake will decrease to approximately 52.1% (46,185,710 shares) upon completion of the concurrent private placement to Icahn Investors.

What is the deal between CTRI and Carl Icahn's investment entities in June 2025?

CTRI agreed to sell 1,060,240 shares to Icahn Partners LP and Icahn Partners Master Fund LP in a concurrent private placement at $20.75 per share, pending HSR Act approval. The deal is expected to generate approximately $22 million in net proceeds for Southwest Gas Holdings. The agreement includes registration rights for the Icahn Investors to resell their shares after a specified period.

What lock-up restrictions were implemented for CTRI stock following the June 2025 offering?

CTRI, its directors and executive officers, Southwest Gas Holdings, the Icahn Investors, and certain affiliates agreed to a 45-day lock-up period after the June 16, 2025 prospectus supplement date. During this period, they cannot sell or transfer any CTRI common stock without written consent from J.P. Morgan Securities LLC, subject to certain exceptions.