Joseph A. Cutillo - 09 Mar 2026 Form 4 Insider Report for STERLING INFRASTRUCTURE, INC. (STRL)

Role
Chief Executive Officer
Signature
Mark D. Wolf (Under a Power of Attorney)
Issuer symbol
STRL
Transactions as of
09 Mar 2026
Net transactions value
-$41,212,646
Form type
4
Filing time
11 Mar 2026, 16:25:41 UTC
Previous filing
27 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
CUTILLO JOSEPH A Chief Executive Officer 1800 HUGHES LANDING BLVD., THE WOODLANDS Mark D. Wolf (Under a Power of Attorney) 11 Mar 2026 0001671928

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction STRL Common Stock Sale $21,404,365 -52,408 -11% $408.42 438,185 09 Mar 2026 Direct F1, F2, F3
transaction STRL Common Stock Sale $19,808,281 -47,592 -11% $416.21 390,593 10 Mar 2026 Direct F1, F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 8, 2025.
F2 Transaction executed in multiple trades at prices ranging from $400.00 to $411.38 per share, inclusive. The price reported in column 4 above reflects the average sale price per share. The Reporting Person hereby undertakes to provide the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.
F3 Of these shares, 20,754 shares are subject to restrictions on their sale or other transfer and to forfeiture under certain circumstances.
F4 Transaction executed in multiple trades at prices ranging from $410.20 to $421.40 per share, inclusive. The price reported in column 4 above reflects the average sale price per share. The Reporting Person hereby undertakes to provide the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares sold at each respective price within the range set forth in this footnote.