Sterling Infrastructure Hits $206 Share Price as Director Executes Planned Sale

Rhea-AI Filing Summary

Sterling Infrastructure director Dana C. O'Brien executed a significant stock sale on June 16, 2025, disposing of 10,154 shares at a price of $206.58 per share, totaling approximately $2.1 million in value. The transaction was conducted through a pre-planned Rule 10b5-1 trading plan established on March 17, 2025.

Following the transaction, O'Brien retains beneficial ownership of 16,498 shares, with 751 shares subject to transfer restrictions and potential forfeiture conditions. The sale was reported via Form 4 filing, indicating changes in beneficial ownership for an insider.

• Transaction Type: Sale of Common Stock
• Post-Transaction Holdings: 16,498 shares (Direct Ownership)
• Trading Plan: Executed under Rule 10b5-1 plan
• Role: Director of Sterling Infrastructure

Positive

• None.

Negative

• Director Dana O'Brien sold 10,154 shares at $206.58 per share (approximately $2.1M total value), representing a significant 38% reduction in holdings from 26,652 to 16,498 shares

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).

X

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^*

O'Brien Dana C.

(Last) (First) (Middle)

1800 HUGHES LANDING BLVD.

(Street)

THE WOODLANDS TX 77380

(City) (State) (Zip)

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

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
06/16/2025

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

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

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

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	06/16/2025		S		10,154(1)	D	$206.58(2)	16,498(3)	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. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 17, 2025.

2. Transaction executed in multiple trades, all at a price of $206.58.

3. Of these shares, 751 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances.

Remarks:

	Mark D. Wolf (Under a Power of Attorney)	06/18/2025
	** 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.

FAQ

How many STRL shares did Director Dana O'Brien sell on June 16, 2025?

Director Dana O'Brien sold 10,154 shares of Sterling Infrastructure (STRL) common stock on June 16, 2025, at a price of $206.58 per share.

What was the price per share for STRL Director O'Brien's stock sale?

The shares were sold at a price of $206.58 per share. The Form 4 indicates that all transactions were executed at this price in multiple trades.

How many STRL shares does Dana O'Brien own after the June 2025 transaction?

Following the reported transaction, Dana O'Brien beneficially owns 16,498 shares of STRL, with 751 of these shares subject to restrictions on sale and potential forfeiture under certain circumstances.

Was STRL Director O'Brien's stock sale part of a 10b5-1 trading plan?

Yes, the sales were executed pursuant to a Rule 10b5-1 trading plan that was adopted by Dana O'Brien on March 17, 2025, approximately three months before the transaction.