Sterling Infrastructure (STRL) counsel sells 2,500 shares in open market

Rhea-AI Filing Summary

STERLING INFRASTRUCTURE, INC. General Counsel and Corporate Secretary Mark D. Wolf reported an open-market sale of Common Stock. He sold 2,500 shares on June 25, 2026 at a price of $888.00 per share, leaving him with 28,137 shares held directly. Of these remaining shares, 1,505 shares are subject to restrictions on sale or transfer and may be forfeited under certain circumstances.

Insider Trade Summary

Net Seller: 2,500 shares ($2,220,000)

Net Sell 1 txn

Insider Wolf Mark D.

Role General Counsel, Corporate Sec

Sold 2,500 shs ($2.22M)

Type	Security	Shares	Price	Value
Sale	Common Stock	2,500	$888.00	$2.22M

Holdings After Transaction: Common Stock — 28,137 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold: 2,500 shares Sale price per share: $888.00 per share Shares owned after transaction: 28,137 shares +2 more

5 metrics

Shares sold 2,500 shares Open-market sale of Common Stock on June 25, 2026

Sale price per share $888.00 per share Price for the 2,500 Common Stock shares sold

Shares owned after transaction 28,137 shares Total Common Stock directly held following the sale

Restricted shares remaining 1,505 shares Portion of holdings subject to restrictions and possible forfeiture

Transaction code S Sale in open market or private transaction, non-derivative

Key Terms

open-market sale, Common Stock, non-derivative, restrictions on their sale or other transfer, +1 more

5 terms

open-market sale financial

"He sold 2,500 shares on June 25, 2026 at a price of $888.00 per share in an open-market sale."

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

"He sold 2,500 shares on June 25, 2026 at a price of $888.00 per share of Common Stock."

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

non-derivative financial

"This was an open-market sale categorized as a non-derivative transaction."

restrictions on their sale or other transfer financial

"1,505 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."

forfeiture financial

"1,505 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances."

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/29/2026 - 04:05 PM Accepted by SEC EDGAR 06/29/2026 - 04:04 PM Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Wolf Mark D.

(Last) (First) (Middle)

1800 HUGHES LANDING BLVD

SUITE 250

(Street)

THE WOODLANDS TEXAS 77380

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
STERLING INFRASTRUCTURE, INC. [ STRL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	General Counsel, Corporate Sec

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/25/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/25/2026		S		2,500	D	$888	28,137(1)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Of these shares, 1,505 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances.

Remarks:

	Mark D. Wolf	06/29/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did STRL’s Mark D. Wolf report on this Form 4?

Mark D. Wolf reported an open-market sale of Sterling Infrastructure Common Stock. He sold 2,500 shares on June 25, 2026, at $888.00 per share, as General Counsel and Corporate Secretary, in a single non-derivative transaction disclosed in the filing.

How many STRL shares did Mark D. Wolf sell and at what price?

He sold 2,500 shares of Sterling Infrastructure Common Stock at $888.00 per share. This was an open-market sale categorized as a non-derivative transaction, with all trade details, including share count and price, specifically disclosed in the Form 4.

How many STRL shares does Mark D. Wolf hold after this sale?

After the transaction, Mark D. Wolf beneficially owns 28,137 shares of Sterling Infrastructure Common Stock directly. This post-transaction holding figure is reported in the filing as the total shares following the June 25, 2026 open-market sale.

Are any of Mark D. Wolf’s remaining STRL shares subject to restrictions?

Yes. Of the 28,137 shares he holds after the sale, 1,505 shares are subject to restrictions on sale or other transfer and to forfeiture under certain circumstances, as specifically described in the Form 4 footnote.

What role does Mark D. Wolf hold at Sterling Infrastructure (STRL)?

Mark D. Wolf serves as an officer of Sterling Infrastructure with the title General Counsel and Corporate Secretary. His status as an officer makes him a reporting person required to disclose transactions in the company’s equity securities on Form 4.