Solv Energy (NASDAQ: MWH) 10% holder moves to sell stake

Rhea-AI Filing Summary

SOLV Energy, Inc. (MWH) has a notice from ASP SOLV Aggregator LP, identified as a 10% Stockholder, indicating an intent under Rule 144 to potentially sell up to 2,281,394 shares of Class A common stock. These shares were originally acquired before SOLV Energy’s IPO, including common units of SOLV Energy Holdings LLC that were later exchanged one-for-one for Class A shares.

ASP SOLV Aggregator LP reports ownership of 2,281,394 Class A shares, with an aggregate market value of $63,354,311.38, while 131,056,519 Class A shares were outstanding as of August 19, 2026, listed on NASDAQ. In the prior three months, it sold 14,258 shares in a registered secondary offering, which the filer states are excluded from the Rule 144 sale limit.

Key Figures

Shares owned by ASP SOLV Aggregator LP: 2,281,394 shares Aggregate market value of owned shares: $63,354,311.38 SOLV Energy Class A shares outstanding: 131,056,519 shares +5 more

8 metrics

Shares owned by ASP SOLV Aggregator LP 2,281,394 shares Class A common stock position reported in the notice

Aggregate market value of owned shares $63,354,311.38 Market value of the 2,281,394 Class A shares

SOLV Energy Class A shares outstanding 131,056,519 shares Class A common stock outstanding as of August 19, 2026

Shares proposed for sale under Rule 144 2,281,394 shares Maximum Class A shares indicated as to be sold

Shares sold June 1, 2026 12,398 shares Registered secondary offering sale by ASP SOLV Aggregator LP

Proceeds June 1, 2026 sale $446,328.00 Aggregate consideration for 12,398 shares

Shares sold June 4, 2026 1,860 shares Registered secondary offering sale by ASP SOLV Aggregator LP

Proceeds June 4, 2026 sale $66,960.00 Aggregate consideration for 1,860 shares

Key Terms

Rule 144, 10% Stockholder, registered secondary offering

3 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.

10% Stockholder financial

"In addition, information shall be given as to sales by all persons... 10% Stockholder"

registered secondary offering financial

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

FAQ

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

ASP SOLV Aggregator LP filed to potentially sell up to 2,281,394 shares of SOLV Energy Class A common stock under Rule 144. This is a notice of possible future resales by a large shareholder, not an executed sale.

How many SOLV Energy (MWH) shares does ASP SOLV Aggregator LP currently own?

ASP SOLV Aggregator LP reports owning 2,281,394 Class A shares of SOLV Energy. The filing also reports an aggregate market value for these shares of $63,354,311.38, based on the market price as of August 19, 2026.

What portion of SOLV Energy (MWH) is held by the filing stockholder?

ASP SOLV Aggregator LP holds 2,281,394 shares out of 131,056,519 Class A shares outstanding as of August 19, 2026. This position is large enough for the holder to be identified as a 10% Stockholder in the notice.

What prior sales of SOLV Energy (MWH) stock did ASP SOLV Aggregator disclose?

The holder disclosed sales of 12,398 shares on June 1, 2026 for $446,328.00 and 1,860 shares on June 4, 2026 for $66,960.00. The filer states these were part of a registered secondary offering.

Are the June 2026 SOLV Energy (MWH) share sales counted under Rule 144 limits?

No. The filer states the June 1 and June 4, 2026 sales were in a registered secondary offering and “are not included” in calculating the amount permitted to be sold under Rule 144.

On which exchange is SOLV Energy (MWH) Class A common stock listed?

The notice identifies SOLV Energy’s Class A common stock as traded on NASDAQ. The securities information section ties the Class A shares and the reported market data to this listing venue.

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Available on EDGAR 08/19/2026 - 08:43 PM Accepted by SEC EDGAR 08/19/2026 - 08:42 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	0002109986
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	ASP SOLV Aggregator 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	2281394	63354311.38	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	Shares of Class A common stock were acquired prior to the Issuer's IPO.	Issuer			7843	02/10/2026	N/A
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			2273551	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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
ASP SOLV Aggregator LP 590 Madison Avenue 38th Floor New York NY 10022	Class A common stock	06/04/2026	1860	66960.00
ASP SOLV Aggregator LP 590 Madison Avenue 38th Floor New York NY 10022	Class A common stock	06/01/2026	12398	446328.00

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)