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AI Earnings Predictions for Sterling Infrastructure Inc. (STRL)

Machine learning predictions based on historical earnings data and price patterns

Latest Prediction

BUY

1-Day Prediction

+6.16%

$484.09

100% positive prob.

5-Day Prediction

+11.29%

$507.50

100% positive prob.

20-Day Prediction

+12.74%

$514.11

95% positive prob.

Price at prediction: $456.02 Confidence: 100.0% Model AUC: 1.0000 Quarter: Q4 2025

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2025
Q4

Q4 2025 Earnings

8-K BUY

Feb 25, 2026 · 100% conf.

AI Prediction BUY

1D

+6.16%

$484.09

Act: -4.97%

5D

+11.29%

$507.50

Act: -7.84%

20D

+12.74%

$514.11

Price: $456.02 Prob +5D: 100% AUC: 1.000
0000874238-26-000018

strl-20260225FALSE000087423800008742382026-02-252026-02-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 25, 2026

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02     Results of Operations and Financial Condition.

On February 25, 2026, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and twelve months ended December 31, 2025 and providing full year 2026 guidance. The press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01     Regulation FD Disclosure.

On February 26, 2026, the Company will host a conference call to discuss the fourth quarter and full year 2025 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits. (d)    Exhibits

Exhibit Number Description 99.1Press release, dated February 25, 2026

99.2Presentation slides, dated February 26, 2026

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:February 25, 2026 By:/s/ Nicholas Grindstaff Nicholas Grindstaff Chief Financial Officer

2025
Q3

Q3 2025 Earnings

8-K

Nov 3, 2025

0000874238-25-000133

strl-20251103FALSE000087423800008742382025-11-032025-11-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 3, 2025

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02     Results of Operations and Financial Condition.

On November 3, 2025, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and nine months ended September 30, 2025 and providing updated full year 2025 guidance. The press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01     Regulation FD Disclosure.

On November 4, 2025, the Company will host a conference call to discuss the third quarter 2025 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits. (d)    Exhibits

Exhibit Number Description 99.1Press release, dated November 3, 2025

99.2Presentation slides, dated November 4, 2025

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:November 3, 2025 By:/s/ Nicholas Grindstaff Nicholas Grindstaff Chief Financial Officer

2025
Q2

Q2 2025 Earnings

8-K

Aug 4, 2025

0000874238-25-000119

strl-20250804FALSE000087423800008742382025-08-042025-08-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 4, 2025

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02     Results of Operations and Financial Condition.

On August 4, 2025, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and six months ended June 30, 2025 and providing updated full year 2025 guidance. The press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01     Regulation FD Disclosure.

On August 5, 2025, the Company will host a conference call to discuss the second quarter 2025 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits. (d)    Exhibits

Exhibit Number Description 99.1Press release, dated August 4, 2025

99.2Presentation slides, dated August 5, 2025

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:August 4, 2025 By:/s/ Nicholas Grindstaff Nicholas Grindstaff Chief Financial Officer

2025
Q1

Q1 2025 Earnings

8-K

May 5, 2025

0000874238-25-000065

strl-20250505FALSE000087423800008742382025-05-052025-05-05

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 5, 2025

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02     Results of Operations and Financial Condition.

On May 5, 2025, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three months ended March 31, 2025 and providing updated full year 2025 guidance. The press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01     Regulation FD Disclosure.

On May 6, 2025, the Company will host a conference call to discuss the first quarter 2025 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits. (d)    Exhibits

Exhibit Number Description 99.1Press release, dated May 5, 2025

99.2Presentation slides, dated May 6, 2025

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:May 5, 2025By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2024
Q4

Q4 2024 Earnings

8-K

Feb 25, 2025

0000874238-25-000021

strl-20250225FALSE000087423800008742382025-02-252025-02-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 25, 2025

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02     Results of Operations and Financial Condition.

On February 25, 2025, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and twelve months ended December 31, 2024 and providing full year 2025 guidance. The press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01     Regulation FD Disclosure.

On February 26, 2025, the Company will host a conference call to discuss the fourth quarter and full year 2024 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits. (d)    Exhibits

Exhibit Number Description 99.1Press release, dated February 25, 2025

99.2Presentation slides, dated February 26, 2025

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:February 25, 2025By:/s/ Sharon R. Villaverde Sharon R. Villaverde Chief Financial Officer

2024
Q3

Q3 2024 Earnings

8-K

Nov 6, 2024

0000874238-24-000142

strl-20241106FALSE000087423800008742382024-11-062024-11-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 6, 2024

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02     Results of Operations and Financial Condition.

On November 6, 2024, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and nine months ended September 30, 2024 and providing an update on full year 2024 guidance. The press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01     Regulation FD Disclosure.

On November 7, 2024, the Company will host a conference call to discuss the third quarter 2024 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits. (d)    Exhibits

Exhibit Number Description 99.1Press release, dated November 6, 2024

99.2Presentation slides, dated November 7, 2024

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:November 6, 2024By:/s/ Sharon R. Villaverde Sharon R. Villaverde Chief Financial Officer

2024
Q2

Q2 2024 Earnings

8-K

Aug 5, 2024

0000874238-24-000118

strl-20240805FALSE000087423800008742382024-08-052024-08-05

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 5, 2024

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02     Results of Operations and Financial Condition.

On August 5, 2024, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and six months ended June 30, 2024 and providing an update on full year 2024 guidance. The press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01     Regulation FD Disclosure.

On August 6, 2024, the Company will host a conference call to discuss the second quarter 2024 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits. (d)    Exhibits

Exhibit Number Description 99.1Press release, dated August 5, 2024

99.2Presentation slides, dated August 6, 2024

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:August 5, 2024By:/s/ Sharon R. Villaverde Sharon R. Villaverde Chief Financial Officer

2024
Q1

Q1 2024 Earnings

8-K

May 6, 2024

0000874238-24-000076

strl-20240506FALSE000087423800008742382024-05-062024-05-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 6, 2024

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02     Results of Operations and Financial Condition.

On May 6, 2024, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three months ended March 31, 2024 and providing an update on full year 2024 guidance. The press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01     Regulation FD Disclosure.

On May 7, 2024, the Company will host a conference call to discuss the first quarter 2024 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits. (d)    Exhibits

Exhibit Number Description 99.1Press release, dated May 6, 2024

99.2Presentation slides, dated May 7, 2024

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:May 6, 2024By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2023
Q4

Q4 2023 Earnings

8-K

Feb 26, 2024

0000874238-24-000027

strl-20240226FALSE000087423800008742382024-02-262024-02-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 26, 2024

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02     Results of Operations and Financial Condition.

On February 26, 2024, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and twelve months ended December 31, 2023 and providing full year 2024 guidance. The press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01     Regulation FD Disclosure.

On February 27, 2024, the Company will host a conference call to discuss the fourth quarter and full year 2023 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits. (d)    Exhibits

Exhibit Number Description 99.1Press release, dated February 26, 2024

99.2Presentation slides, dated February 27, 2024

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:February 26, 2024By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2023
Q3

Q3 2023 Earnings

8-K

Nov 6, 2023

0000874238-23-000115

strl-20231106FALSE000087423800008742382023-11-062023-11-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 6, 2023

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02Results of Operations and Financial Condition.

On November 6, 2023, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and nine months ended September 30, 2023 and an update to the full year 2023 guidance. The press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01Regulation FD Disclosure.

On November 7, 2023, the Company will host a conference call to discuss the third quarter results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the Company specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits.

(d)    Exhibits

Exhibit Number Description 99.1Press release, dated November 6, 2023

99.2Presentation slides, dated November 7, 2023

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:November 6, 2023By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2023
Q2

Q2 2023 Earnings

8-K

Aug 7, 2023

0000874238-23-000103

strl-20230807FALSE000087423800008742382023-08-072023-08-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 7, 2023

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02Results of Operations and Financial Condition.

On August 7, 2023, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and six months ended June 30, 2023 and an update to the full year 2023 guidance. The copy of the press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01Regulation FD Disclosure.

On August 8, 2023, the Company will host a conference call to discuss the second quarter results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits.

(d)    Exhibits

Exhibit Number Description 99.1Press release, dated August 7, 2023

99.2Presentation slides, dated August 8, 2023

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:August 7, 2023By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2023
Q1

Q1 2023 Earnings

8-K

May 1, 2023

0000874238-23-000062

strl-20230501FALSE000087423800008742382023-05-012023-05-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 1, 2023

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02Results of Operations and Financial Condition.

On May 1, 2023, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three months ended March 31, 2023 and reaffirmed the full year 2023 guidance. The copy of the press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01Regulation FD Disclosure.

On May 2, 2023, the Company will host a conference call to discuss the first quarter results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits.

(d)    Exhibits

Exhibit Number Description 99.1Press release, dated May 1, 2023

99.2Presentation slides, dated May 2, 2023

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:May 1, 2023By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2022
Q4

Q4 2022 Earnings

8-K

Feb 28, 2023

0000874238-23-000015

strl-20230227FALSE000087423800008742382023-02-272023-02-27

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 27, 2023

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02Results of Operations and Financial Condition.

On February 27, 2023, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and twelve months ended December 31, 2022 and provided full year 2023 guidance. The copy of the press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01Regulation FD Disclosure.

On February 28, 2023, the Company will host a conference call to discuss the fourth quarter and full year 2022 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits.

(d)    Exhibits

Exhibit Number Description 99.1Press release, dated February 27, 2023

99.2Presentation slides, dated February 28, 2023

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:February 27, 2023 By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2022
Q3

Q3 2022 Earnings

8-K

Nov 1, 2022

0000874238-22-000087

strl-20221031FALSE000087423800008742382022-10-312022-10-31

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 31, 2022

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02Results of Operations and Financial Condition.

On October 31, 2022, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and nine months ended September 30, 2022 and an update on full year 2022 guidance. The copy of the press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01Regulation FD Disclosure.

On November 1, 2022, the Company will host a conference call to discuss the third quarter 2022 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits.

(d)    Exhibits

Exhibit Number Description 99.1Press release, dated October 31, 2022

99.2Presentation slides, dated November 1, 2022

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:October 31, 2022 By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2022
Q2

Q2 2022 Earnings

8-K

Aug 1, 2022

0000874238-22-000076

strl-20220801FALSE000087423800008742382022-08-012022-08-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 1, 2022

STERLING INFRASTRUCTURE, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Sterling Construction Company, Inc. (Former name, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02Results of Operations and Financial Condition.

On August 1, 2022, Sterling Infrastructure, Inc. (the “Company”) issued a press release announcing financial results for the three and six months ended June 30, 2022 and an update on full year 2022 guidance. The copy of the press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01Regulation FD Disclosure.

On August 2, 2022, the Company will host a conference call to discuss the second quarter 2022 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits.

(d)    Exhibits

Exhibit Number Description 99.1Press release, dated August 1, 2022

99.2Presentation slides, dated August 2, 2022

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING INFRASTRUCTURE, INC.

Date:August 1, 2022By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2022
Q1

Q1 2022 Earnings

8-K

May 2, 2022

0000874238-22-000046

strl-20220502FALSE000087423800008742382022-05-022022-05-02

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 2, 2022

STERLING CONSTRUCTION COMPANY, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02Results of Operations and Financial Condition.

On May 2, 2022, Sterling Construction Company, Inc. (the “Company”) issued a press release announcing financial results for the three months ended March 31, 2022. The copy of the press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01Regulation FD Disclosure.

On May 3, 2022, the Company will host a conference call to discuss the first quarter 2022 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits.

(d)    Exhibits

Exhibit Number Description 99.1Press release, dated May 2, 2022

99.2Presentation slides, dated May 3, 2022

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING CONSTRUCTION COMPANY, INC.

Date:May 2, 2022By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2021
Q4

Q4 2021 Earnings

8-K

Mar 1, 2022

0000874238-22-000020

strl-20220228FALSE000087423800008742382022-02-282022-02-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 28, 2022

STERLING CONSTRUCTION COMPANY, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02Results of Operations and Financial Condition.

On February 28, 2022, Sterling Construction Company, Inc. (the “Company”) issued a press release announcing financial results for the three and twelve months ended December 31, 2021. The copy of the press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01Regulation FD Disclosure.

On March 1, 2022, the Company will host a conference call to discuss the fourth quarter and full year 2021 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits.

(d)    Exhibits

Exhibit Number Description 99.1Press release, dated February 28, 2022

99.2Presentation slides, dated March 1, 2022

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING CONSTRUCTION COMPANY, INC.

Date:February 28, 2022By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2021
Q3

Q3 2021 Earnings

8-K

Nov 2, 2021

0000874238-21-000087

strl-20211102FALSE000087423800008742382021-11-022021-11-02

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 2, 2021

STERLING CONSTRUCTION COMPANY, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0777

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02Results of Operations and Financial Condition.

On November 2, 2021, Sterling Construction Company, Inc. (the “Company”) issued a press release announcing financial results for the nine months ended September 30, 2021. The copy of the press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01Regulation FD Disclosure.

On November 3, 2021, the Company will host a conference call to discuss the third quarter 2021 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits.

(d)    Exhibits

Exhibit Number Description 99.1Press release, dated November 2, 2021

99.2Presentation slides, dated November 3, 2021

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING CONSTRUCTION COMPANY, INC.

Date:November 2, 2021By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2021
Q2

Q2 2021 Earnings

8-K

Aug 2, 2021

0000874238-21-000065

strl-20210802FALSE000087423800008742382021-08-022021-08-02

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 2, 2021

STERLING CONSTRUCTION COMPANY, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0800

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02Results of Operations and Financial Condition.

On August 2, 2021, Sterling Construction Company, Inc. (the “Company”) issued a press release announcing financial results for the six months ended June 30, 2021. The copy of the press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01Regulation FD Disclosure.

On August 3, 2021, the Company will host a conference call to discuss the second quarter 2021 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01     Financial Statements and Exhibits.

(d)    Exhibits

Exhibit Number Description 99.1Press release, dated August 2, 2021

99.2Presentation slides, dated August 3, 2021

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING CONSTRUCTION COMPANY, INC.

Date:August 2, 2021By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

2021
Q1

Q1 2021 Earnings

8-K

May 3, 2021

0000874238-21-000024

strl-20210503FALSE000087423800008742382021-05-032021-05-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 3, 2021

STERLING CONSTRUCTION COMPANY, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3199325-1655321 (State or other jurisdiction of incorporation or organization)(Commission File Number)(I.R.S. Employer Identification No.)

1800 Hughes Landing Blvd. The Woodlands, Texas

77380

(Address of principal executive offices)(Zip Code)

Registrant’s telephone number, including area code:  (281) 214-0800

Securities registered pursuant to Section 12(b) of the Act: Common Stock, $0.01 par value per shareSTRLThe NASDAQ Stock Market LLC (Title of Class)(Trading Symbol)(Name of each exchange on which registered)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR § 240.12b-2 of this chapter). Emerging growth company☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 2.02    Results of Operations and Financial Condition.

On May 3, 2021, Sterling Construction Company, Inc. (the “Company”) issued a press release announcing financial results for the three months ended March 31, 2021. The copy of the press release is being furnished with this Current Report on Form 8-K as Exhibit 99.1 and is incorporated herein by reference.

The information provided in this Item 2.02 shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 7.01    Regulation FD Disclosure.

On May 4, 2021, the Company will host a conference call to discuss the first quarter 2021 results as well as corporate developments. The slides to be used during the conference call are being furnished with this Current Report on Form 8-K as Exhibit 99.2 and are incorporated herein by reference.

The information provided in this Item 7.01 shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, unless the registrant specifically states that the information is to be considered “filed” under the Exchange Act, nor shall it be incorporated by reference in any filing made by the Company pursuant to the Exchange Act or the Securities Act, other than to the extent that such filing incorporates by reference any or all of such information by express reference thereto.

Item 9.01    Financial Statements and Exhibits.

(d)    Exhibits

Exhibit Number Description 99.1Press release, dated May 3, 2021

99.2Presentation slides, dated May 4, 2021

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

STERLING CONSTRUCTION COMPANY, INC.

Date:May 3, 2021By:/s/ Ronald A. Ballschmiede Ronald A. Ballschmiede Chief Financial Officer

About Sterling Infrastructure Inc. (STRL) Earnings

This page provides Sterling Infrastructure Inc. (STRL) earnings call transcripts from SEC 8-K filings along with AI-powered predictions for post-earnings price movements. Our machine learning models analyze historical earnings data, pre-earnings price patterns, volume changes, and volatility to predict 1-day, 5-day, and 20-day returns after each earnings release.

Earnings transcripts are sourced directly from SEC EDGAR filings. Predictions are generated using gradient boosting models trained on STRL's historical earnings reactions. All predicted returns are shown as percentages, and predicted prices are calculated from the closing price at the time of prediction. Past performance does not guarantee future results.

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