UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ___ to ___ Commission File Number 1-31993 STERLING INFRASTRUCTURE, INC. (Exact name of registrant as specified in its charter) Delaware 25-1655321 (State or other jurisdictio ...

Exhibit 99.1 NEWS RELEASE For Immediate Release: February 26, 2024 Sterling Reports Record Fourth Quarter and Full Year 2023 Results Provides 2024 Full Year Guidance THE WOODLANDS, TX – February 26, 2024 – Sterling Infrastructure, Inc. (NasdaqGS: STRL) (“Sterling” or the “Company”) today announced financial results for the fourth quarter and full year 2023 and provided full year 2024 guidance. The financial information herein is from continuing operations and comparisons are to the prior year quarter, unles ...

Sterling Infrastructure, Inc. (NASDAQ:STRL) Q3 2023 Earnings Conference Call November 7, 2023 9:00 AM ET Company Participants Noelle Dilts - VP, IR & Corporate Strategy Joseph Cutillo - CEO, President & Director Ronald Ballschmiede - EVP, CFO, CAO & Treasurer Conference Call Participants Brent Thielman - D.A. Davidson & Co. Brian Russo - Sidoti & Company Operator Greetings, and welcome to the Sterling Infrastructure Third Quarter 2023 Conference Call and Webcast. [Operator Instructions]. It is now my pleasu ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ___ to ___ Commission File Number1-31993 STERLING INFRASTRUCTURE, INC. (Exact name of registrant as specified in its charter) Delaware 25-1655321 (State or other jur ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ___ to ___ Commission File Number1-31993 STERLING INFRASTRUCTURE, INC. (Exact name of registrant as specified in its charter) Delaware 25-1655321 (State or other jurisdic ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ___ to ___ Commission File Number1-31993 STERLING INFRASTRUCTURE, INC. (Exact name of registrant as specified in its charter) Delaware 25-1655321 (State or other jurisdi ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ___ to ___ Commission File Number 1-31993 STERLING INFRASTRUCTURE, INC. (Exact name of registrant as specified in its charter) Delaware 25-1655321 (State or other jurisdictio ...