SOLV Energy (NASDAQ: MWH) 10% holder plans August stock sale

Rhea-AI Filing Summary

SOLV Energy, Inc. (MWH) received a notice under Rule 144 that SOLV Energy Management Holdings, identified as a 10% stockholder, intends to sell shares of the company’s Class A common stock through Citadel Securities, LLC on NASDAQ. The notice covers up to 1,329,803 shares of Class A common stock with an aggregate market value of $36,928,629.31, compared with 131,056,519 shares outstanding. The shares relate to common units of SOLV Energy Holdings LLC acquired on February 10, 2026, which were later exchanged one-for-one into Class A common stock. The planned sales are expected to occur around August 19, 2026. The filer notes that shares sold on June 1 and June 4, 2026 in a registered secondary offering are excluded from the Rule 144 volume calculation.

Key Figures

Shares to be sold under Rule 144: 1,329,803 shares Aggregate market value of shares: $36,928,629.31 Shares outstanding: 131,056,519 shares +3 more

6 metrics

Shares to be sold under Rule 144 1,329,803 shares Class A common stock covered by the notice

Aggregate market value of shares $36,928,629.31 Aggregate market value of the 1,329,803 shares in the Rule 144 notice

Shares outstanding 131,056,519 shares Class A common stock outstanding for comparison in the Rule 144 disclosure

Approximate sale date 08/19/2026 Approximate date sales may occur under the Rule 144 notice

Date of acquisition 02/10/2026 Acquisition date of common units later exchanged into Class A common stock

Holder status 10% Stockholder Status of SOLV Energy Management Holdings in relation to SOLV Energy, Inc.

Key Terms

Rule 144, registered secondary offering, 10% Stockholder, aggregate market value

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

registered secondary offering financial

"The shares sold on June 1, 2026 and June 4, 2026 were sold in a registered sec"

10% Stockholder financial

"In addition, information shall be given as to sales by all persons whose sales a"

aggregate market value financial

"Class A Common Stock | Citadel Securities, LLC ... | 36928629.31 | 131056519 |"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

What does the Form 144 filing disclose for SOLV Energy, Inc. (MWH)?

The notice discloses that SOLV Energy Management Holdings, a 10% stockholder, plans to sell up to 1,329,803 Class A shares of SOLV Energy, Inc. on NASDAQ under Rule 144, using Citadel Securities, LLC as broker.

How many SOLV Energy (MWH) shares are covered by this Rule 144 notice and what is their value?

The filing covers up to 1,329,803 shares of Class A common stock with an aggregate market value of $36,928,629.31. These figures are used for the Rule 144 volume-related disclosure, compared with 131,056,519 shares outstanding.

Who is selling shares of SOLV Energy (MWH) under this Form 144?

The shares are for the account of SOLV Energy Management Holdings, identified as a 10% stockholder. Citadel Securities, LLC is listed as the broker handling potential sales on NASDAQ under Rule 144.

When were the SOLV Energy (MWH) securities acquired and how were the current shares issued?

On February 10, 2026, common units of SOLV Energy Holdings LLC were acquired. Shares of SOLV Energy, Inc. Class A common stock were later issued on a one-for-one basis in exchange for these common units, following the company’s IPO.

What is the approximate sale date for the SOLV Energy (MWH) shares in the Form 144?

The notice lists an approximate sale date of August 19, 2026 for the covered shares on NASDAQ. This date is part of the Rule 144 disclosure and indicates when the seller may begin executing sales through the named broker.

How many SOLV Energy (MWH) shares are outstanding compared with the amount in this Form 144?

The filing reports 131,056,519 shares outstanding of Class A common stock. The Rule 144 notice covers up to 1,329,803 shares, which is a subset of the total outstanding share count disclosed.

What does the remark about a registered secondary offering mean for SOLV Energy (MWH)?

The filer states that shares sold on June 1, 2026 and June 4, 2026 were sold in a registered secondary offering. Those shares are expressly excluded from determining the amount permitted to be sold under Rule 144 in this notice.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 08/19/2026 - 08:47 PM Accepted by SEC EDGAR 08/19/2026 - 08:46 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002109979
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	SOLV Energy, Inc.
SEC File Number	001-43117
Address of Issuer	16680 West Bernardo Drive San Diego CALIFORNIA 92127
Phone	(858)-251-4888
Name of Person for Whose Account the Securities are To Be Sold	SOLV Energy Management Holdings LP
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	10% Stockholder

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A Common Stock	Citadel Securities, LLC 830 Brickell Plaza Miami FL 33131	1329803	36928629.31	131056519	08/19/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A Common Stock	02/10/2026	Common units of SOLV Energy Holdings LLC were acquired prior to the Issuer's IPO. Shares of Class A common stock of the Issuer were issued on a one-for-one basis in exchange for these common units.	Issuer			1329803	02/10/2026	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks	The shares sold on June 1, 2026 and June 4, 2026 were sold in a registered secondary offering and are not included in the determination of the amount permitted to be sold under Rule 144.
Date of Notice	08/19/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Kevin Penn
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)