TPC

EX-99.1

2 tpc20261104ex991.htm

EX-99.1

Document

News Release

Tutor Perini Reports Record Third Quarter 2026 Financial Results; Raises 2026 Adjusted EPS Guidance

•Record operating cash flow of $330.9 million and $665.1 million for the third quarter and first nine months of 2026, up 14% and 16% Y/Y, respectively

•Record Q3 2026 revenue of $1.7 billion, up 22% Y/Y

•Record Q3 2026 income from construction operations of $125.4 million, up 213% Y/Y reflecting continued strong operating performance and contributions from higher-margin projects

•Q3 2026 diluted earnings per share ("EPS") of $0.39, up 457% Y/Y

•Q3 2026 adjusted EPS of $1.83, up 59% Y/Y

•High-quality, near-record backlog of $20.4 billion

•Raising 2026 adjusted EPS guidance to $5.90 to $6.10 (up from $5.15 to $5.45)

•Tutor Perini anticipates continued strong revenue and adjusted EPS growth in 2027 due to clear visibility provided by long-duration backlog

LOS ANGELES – (BUSINESS WIRE) – November 4, 2026 – Tutor Perini Corporation (the "Company") (NYSE: TPC), a leading civil, building and specialty construction company, today reported strong financial results for the third quarter of 2026 (see attached tables).

Record Cash Flow, Revenue, and Operating Income

Tutor Perini generated $330.9 million and $665.1 million of cash from operating activities in the third quarter and first nine months of 2026, up 14% and 16%, respectively, compared to $289.1 million and $574.4 million for the same periods last year. Operating cash flow for the third quarter of 2026 was the highest result of any quarter in the Company's history, and the result for the first nine months of 2026 was the highest of any first-nine-month period ever. The record operating cash flow for both periods was driven by higher volume, strong execution, record earnings and collections on profitable projects. The Company expects continued strong operating cash flow for the remainder of 2026 and beyond, as current projects progress and new projects are awarded.

Revenue for the third quarter of 2026 was a record $1.7 billion, the highest revenue of any quarter ever, and up 22% compared to $1.4 billion for the same period in 2025. Revenue for the Civil, Building, and Specialty Contractors segments for the third quarter of 2026 was up 16%, 29%, and 26%, respectively, compared to the same quarter last year. The strong double-digit growth across all segments was primarily driven by increased activities on certain newer high-margin projects, including in the Northeast, California, Texas, and the Indo-Pacific region. During the first nine months of 2026, the Company delivered solid double-digit year-over-year growth across all three segments, with business momentum driven by increased project execution activities on various large projects, all of which have significant scope of work remaining.

Income from construction operations for the third quarter of 2026 was a record $125.4 million, up 213% compared to $40.1 million for the third quarter of 2025, the highest result of any quarter ever. The third quarter of 2026 was positively impacted by higher-margin contributions associated with the increased project execution activities discussed above, as well as a significant decrease of $39.5 million ($0.73 per diluted share, net of associated tax benefit) in share-based compensation expense in the third quarter of 2026 compared to the third quarter of 2025. The reduction in share-based compensation expense was due to the absence of certain liability-classified awards that vested at the end of 2025.

1

Share-based compensation expense is expected to decline significantly in 2027, as most of the remaining liability-classified awards will vest by the end of 2026.

Net income attributable to the Company for the third quarter of 2026 was $20.7 million, or EPS of $0.39, up significantly compared to $3.6 million, or EPS of $0.07, reported for the third quarter of 2025. Adjusted net income attributable to the Company, which excludes the impact of share-based compensation expense, loss on extinguishment of debt, and a pension settlement charge, net of the associated tax benefits of these adjustments, for the third quarter of 2026 was $97.6 million, or $1.83 of Adjusted EPS, also up significantly compared to $61.9 million, or $1.15 of Adjusted EPS, reported for the third quarter of 2025.

The Company's strong results this year continue to demonstrate the impressive quality and magnitude of earnings embedded within the Company's backlog. With many of the projects in backlog still in their early phases, management believes the backlog provides strong visibility into future profitability and supports its latest increased 2026 guidance. (Please refer to the Non-GAAP Financial Measures section below for further information and a reconciliation of the Company's financial results reported under generally accepted accounting principles in the United States (“GAAP”) to the reported adjusted results.)

Highly Profi

EX-99.1

2 tpc20260805ex991.htm

EX-99.1

Document

News Release

Tutor Perini Reports Strong Second Quarter 2026 Financial Results; Raises 2026 Adjusted EPS Guidance; Increases Quarterly Dividend 50%

•Record revenue of $1.6 billion, up 19% Y/Y

•Record income from construction operations of $117.7 million, up 54% Y/Y reflecting continued strong operating performance and growing contributions from higher-margin projects

•Diluted earnings per share ("EPS") of $1.23, up 224% compared to $0.38 in Q2 2025

•Adjusted EPS of $1.74, up 23% compared to $1.41 in Q2 2025

•Record first-half 2026 operating cash flow of $334.1 million, up 17% Y/Y

•Profitable, near-record backlog of $19.9 billion, up slightly compared to backlog at Q1 2026

•Raising 2026 Adjusted EPS guidance to $5.15 to $5.45 (up from $4.90 to $5.30)

•Board increases quarterly dividend 50% to $0.09 per share

•Tutor Perini remains confident that Adjusted EPS for 2027 will be substantially higher than the upper end of the Company's increased 2026 guidance due to solid earnings visibility provided by current backlog

LOS ANGELES – (BUSINESS WIRE) – August 5, 2026 – Tutor Perini Corporation (the "Company") (NYSE: TPC), a leading civil, building and specialty construction company, today reported strong financial results for the second quarter of 2026 (see attached tables).

Revenue for the second quarter of 2026 was a record $1.6 billion, the highest revenue of any quarter ever, and up 19% compared to $1.4 billion for the same period in 2025. Revenue for the Civil, Building, and Specialty Contractors segments for the second quarter of 2026 was up 11%, 21%, and 47%, respectively, compared to the same quarter last year. The solid growth across all segments was primarily driven by increased activities on certain newer large high-margin projects in New York, California, Hawaii and the Indo-Pacific region. Over the first six months of 2026, the Company has delivered double-digit year-over-year growth across all three segments, with growing and sustainable business momentum driven by increased project execution activities on various large projects, all of which have significant scope of work remaining.

Income from construction operations for the second quarter of 2026 was a record $117.7 million, up 54% compared to $76.4 million for the second quarter of 2025, and the highest result of any quarter ever. The second quarter of 2026 was positively impacted by higher-margin contributions associated with the increased project execution activities discussed above, as well as a significant decrease of $27.5 million ($0.53 per diluted share, net of associated tax benefit) in share-based compensation expense in the second quarter of 2026 compared to the second quarter of 2025. Share-based compensation expense is expected to decrease over the remainder of 2026 as compared to 2025 and decline much more significantly in 2027, as some of the liability-classified awards have recently vested and most of the remaining awards will vest by the end of 2026.

Net income attributable to the Company for the second quarter of 2026 was $65.7 million, or EPS of $1.23, up significantly compared to $20.0 million, or EPS of $0.38, reported for the second quarter of 2025. Adjusted net income attributable to the Company, which excludes the impact of share-based compensation expense, net of associated tax benefit, for the second quarter of 2026 was $93.0 million, or $1.74 of Adjusted EPS, also up significantly compared to $75.1 million, or $1.41 of Adjusted EPS, reported for the second quarter of 2025. The Company's strong adjusted results demonstrate the substantial earnings potential embedded within the Company's backlog. With many of these projects still in their early phases or having recently commenced, management believes the backlog provides strong visibility into future profitability and supports its increased 2026 guidance. (Please refer to the Non-GAAP Financial Measures section

1

below for further information and a reconciliation of the Company's financial results reported under generally accepted accounting principles in the United States (“GAAP”) to the reported adjusted results.)

Record First-Half 2026 Operating Cash Flow

The Company generated a record $334.1 million of cash from operating activities in the first half of 2026, up 17% compared to $285.3 million for the same period last year. The record operating cash flow was driven by higher volume and strong execution and collections on profitable projects. The Company expects continued strong operating cash flow in the second half of 2026 and beyond.

Profitable, Near-Record Backlog

The Company booked approximately $1.7 billion of new awards and contract adjustments in the second quarter of 2026, which resulted in backlog of $19.9 billion as of June 30, 2026, up slightly compared to backlog as of March 31, 2026.

The largest additions to backlog in the second quarter of 2026 included the following:

•$652 million for a

SEC.gov | Request Rate Threshold Exceeded

U.S. Securities and Exchange Commission

You’ve Exceeded the SEC’s Traffic Limit

Your request rate has exceeded the SEC’s maximum allowable requests per second. Your access to SEC.gov will be limited for 10 minutes.

Current guidelines limit each user to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests. To ensure that SEC.gov remains available to all users, we reserve the right to block IP addresses that submit excessive requests.

The block will be lifted automatically by waiting 10 minutes. Continuing to exceed the SEC’s maximum allowable request rate during the time-out period will extend the duration of the time-out period. To ensure fair access for all users, please reduce the rate of your requests and visit SEC.gov again after the 10 minute time-out period has passed.

For best practices on efficiently downloading information from SEC.gov, including the latest EDGAR filings, visit sec.gov/developer. You can also sign up for email updates on the SEC open data program, including best practices that make it more efficient to download data, and SEC.gov enhancements that may impact scripted downloading processes. For more information, contact opendata@sec.gov.

For more information, please see the SEC’s Web Site Privacy and Security Policy. Thank you for your interest in the U.S. Securities and Exchange Commission.

Reference ID: 0.e618d017.1784334099.4292b72d

More Information

Internet Security Policy

By using this site, you are agreeing to security monitoring and auditing. For security purposes, and to ensure that the public service remains available to users, this government computer system employs programs to monitor network traffic to identify unauthorized attempts to upload or change information or to otherwise cause damage, including attempts to deny service to users.

Unauthorized attempts to upload information and/or change information on any portion of this site are strictly prohibited and are subject to prosecution under the Computer Fraud and Abuse Act of 1986 and the National Information Infrastructure Protection Act of 1996 (see Title 18 U.S.C. §§ 1001 and 1030).

To ensure our website performs well for all users, the SEC monitors the frequency of requests for SEC.gov content to ensure automated searches do not impact the ability of others to access SEC.gov content. We reserve the right to block IP addresses that submit excessive requests. Current guidelines limit users to a total of no more than 10 requests per second, regardless of the number of machines used to submit requests.

If a user or application submits more than 10 requests per second, further requests from the IP address(es) may be limited for a brief period. Once the rate of requests has dropped below the threshold for 10 minutes, the user may resume accessing content on SEC.gov. This SEC practice is designed to limit excessive automated searches on SEC.gov and is not intended or expected to impact individuals browsing the SEC.gov website.

Note that this policy may change as the SEC manages SEC.gov to ensure that the website performs efficiently and remains available to all users.

Note: We do not offer technical support for developing or debugging scripted downloading processes.

tpc-202602260000077543false00000775432026-02-262026-02-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2026

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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, 2026 Tutor Perini Corporation issued a press release announcing its financial results for the quarter and year ended December 31, 2025. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: February 26, 2026 By: /s/ Ryan J. Soroka Ryan J. Soroka Executive Vice President and Chief Financial Officer

3

tpc-202511050000077543false00000775432025-11-052025-11-05

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 5, 2025

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 5, 2025 Tutor Perini Corporation issued a press release announcing its financial results for the quarter ended September 30, 2025. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: November 5, 2025By: /s/ Ryan J. Soroka Ryan J. Soroka Executive Vice President and Chief Financial Officer

3

tpc-202508060000077543false00000775432025-08-062025-08-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 6, 2025

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 6, 2025 Tutor Perini Corporation issued a press release announcing its financial results for the quarter ended June 30, 2025. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: August 6, 2025By: /s/ Ryan J. Soroka Ryan J. Soroka Executive Vice President and Chief Financial Officer

3

tpc-202505070000077543false00000775432025-05-072025-05-07

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 7, 2025

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 7, 2025 Tutor Perini Corporation issued a press release announcing its financial results for the quarter ended March 31, 2025. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: May 7, 2025By: /s/ Ryan J. Soroka Ryan J. Soroka Executive Vice President and Chief Financial Officer

3

tpc-202502270000077543false00000775432025-02-272025-02-27

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2025

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 27, 2025 Tutor Perini Corporation issued a press release announcing its financial results for the quarter and year ended December 31, 2024. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: February 27, 2025 By: /s/ Ryan J. Soroka Ryan J. Soroka Executive Vice President and Chief Financial Officer

3

tpc-202411060000077543false00000775432024-11-062024-11-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 Tutor Perini Corporation issued a press release announcing its financial results for the quarter ended September 30, 2024. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: November 6, 2024By: /s/ Ryan J. Soroka Ryan J. Soroka Senior Vice President and Chief Financial Officer

3

tpc-202410210000077543false00000775432024-10-212024-10-21

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 21, 2024

Tutor Perini Corporation (Exact name of registrant as specified in its charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 October 21, 2024, Tutor Perini Corporation (the “Company”) issued a press release providing an update on various Company matters, including the settlement of various project-related disputes, an update on cash collections, expected operating cash flow for the fourth quarter and full year of 2024, its plan to prepay a portion of its Term Loan B debt in the fourth quarter of 2024 and first quarter of 2025, as well as significant new award activity in the third quarter of 2024 that is expected to result in an all-time record ending backlog as of September 30, 2024. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

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 thereunto duly authorized.

TUTOR PERINI CORPORATION

Date: October 21, 2024By:/s/ Ryan J. Soroka Ryan J. Soroka Senior Vice President and Chief Financial Officer

3

tpc-202408010000077543false00000775432024-08-012024-08-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2024

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 1, 2024 Tutor Perini Corporation issued a press release announcing its financial results for the quarter ended June 30, 2024. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: August 1, 2024By: /s/ Ryan J. Soroka Ryan J. Soroka Senior Vice President and Chief Financial Officer

3

tpc-202404250000077543false00000775432024-04-252024-04-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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): April 25, 2024

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 April 25, 2024 Tutor Perini Corporation issued a press release announcing its financial results for the quarter ended March 31, 2024. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: April 25, 2024By: /s/ Ryan J. Soroka Ryan J. Soroka Senior Vice President and Chief Financial Officer

3

8-K

TUTOR PERINI CORP false 0000077543 0000077543 2024-04-15 2024-04-15

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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): April 15, 2024

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts

1-6314

04-1717070

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code) (818) 362-8391 (Registrant’s Telephone Number, Including Area Code) None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Stock, $1.00 par value

TPC

The New York Stock Exchange Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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.

In connection with a proposed private offering of $400 million aggregate principal amount of senior notes due 2029 (the “Offering”), Tutor Perini Corporation (the “Company”) is disclosing the following preliminary financial estimates for the fiscal quarter ended, and as of, March 31, 2024. The Company has not yet completed preparation of financial statements for the fiscal quarter ended March 31, 2024, but based on preliminary data available to it, it is providing the following preliminary estimates:

•

Revenue in the range of approximately $1.025 billion to $1.075 billion;

•

Net income attributable to Tutor Perini Corporation in the range of approximately $14 million to $17 million;

•

Diluted EPS in the range of approximately $0.27 per share to $0.32 per share;

•

Cash flow from operations in the range of approximately $96 million to $100 million; and

•

Total debt of approximately $800 million, a reduction of approximately $100 million from December 31, 2023. This is expected to be further reduced by an additional amount of approximately $100 million with the anticipated redemption of $500 million aggregate principal amount of the Company’s Senior Notes due 2025 and issuance of $400 million aggregate principal amount of senior notes due 2029 in the Offering.

The preliminary estimates of the Company’s results presented above are based upon currently available information, and are subject to revision as a result of, among other things, the completion of the Company’s financial closing procedures, the completion of its financial statements for such period and the completion of other operational procedures (all of which have not yet been completed), including the possibility of changes as a result of resolutions on open litigation, arbitration or other settlement negotiations that could occur through the filing of the Company’s Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2024. Additional items that may require adjustments to the preliminary estimates may be identified. The Company’s actual results may be materially different from its preliminary estimates, which should not be regarded as a representation by the Company, its management or the initial purchasers as to the Company’s actual results for the fiscal quarter ended, and as of, March 31, 2024. You should not place undue reliance on this preliminary information. In addition, the preliminary data is not necessarily indicative of the Company’s results for any future period. During the course of the preparation of the Company’s financial statements and related notes as of and for the three months ended March 31, 2024, the Company may identify items that would require material adjustments to these preliminary estimates. The Company does not intend to update or otherwise revise these preliminary estimates to reflect future events. As a

tpc-202402280000077543false00000775432024-02-282024-02-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2024

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 28, 2024 Tutor Perini Corporation issued a press release announcing its financial results for the quarter and year ended December 31, 2023. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: February 28, 2024 By: /s/ Ryan J. Soroka Ryan J. Soroka Senior Vice President and Chief Financial Officer

3

tpc-202311090000077543false00000775432023-11-092023-11-09

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 9, 2023

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 9, 2023 Tutor Perini Corporation issued a press release announcing its financial results for the quarter ended September 30, 2023. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: November 9, 2023By: /s/ Gary G. Smalley Gary G. Smalley Executive Vice President and Chief Financial Officer

3

tpc-202308030000077543false00000775432023-08-032023-08-03

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 3, 2023

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 3, 2023 Tutor Perini Corporation issued a press release announcing its financial results for the quarter ended June 30, 2023. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: August 3, 2023By: /s/ Gary G. Smalley Gary G. Smalley Executive Vice President and Chief Financial Officer

3

tpc-202305040000077543false00000775432023-05-042023-05-04

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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 4, 2023

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 4, 2023 Tutor Perini Corporation issued a press release announcing its financial results for the quarter ended March 31, 2023. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: May 4, 2023By: /s/ Gary G. Smalley Gary G. Smalley Executive Vice President and Chief Financial Officer

3

tpc-202303150000077543false00000775432023-03-152023-03-15

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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): March 15, 2023

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 March 15, 2023 Tutor Perini Corporation issued a press release announcing its financial results for the quarter and year ended December 31, 2022. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: March 15, 2023 By: /s/ Gary G. Smalley Gary G. Smalley Executive Vice President and Chief Financial Officer

3

tpc-202211020000077543false00000775432022-11-022022-11-02

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2022

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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 2, 2022 Tutor Perini Corporation issued a press release announcing its financial results for the quarter ended September 30, 2022. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: November 2, 2022By: /s/ Gary G. Smalley Gary G. Smalley Executive Vice President and Chief Financial Officer

3

tpc-202208050000077543false00000775432022-08-052022-08-05

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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, 2022

Tutor Perini Corporation (Exact Name of Registrant as Specified in its Charter)

Massachusetts1-631404-1717070 (State or Other Jurisdiction of Incorporation)(Commission File Number)(IRS Employer Identification No.)

15901 Olden Street, Sylmar, California 91342-1093 (Address of Principal Executive Offices, and Zip Code)

(818) 362-8391 (Registrant’s Telephone Number, Including Area Code)

None (Former Name or Former Address, if Changed Since Last Report)

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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueTPCThe New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§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, 2022 Tutor Perini Corporation issued a press release announcing its financial results for the quarter ended June 30, 2022. A copy of that press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

The information in this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished to the Securities and Exchange Commission and shall not be deemed “filed” for any purpose, including for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of such section. The information in this Current Report on Form 8-K shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, regardless of any general incorporation language in such filing.

Item 9.01.        Financial Statements and Exhibits

(d)          Exhibits

Exhibit NumberDescription 99.1 Press release

104The cover page from this Current Report on Form 8-K formatted in Inline XBRL (included as Exhibit 101).

2

SIGNATURE

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.

TUTOR PERINI CORPORATION

Date: August 5, 2022By: /s/ Gary G. Smalley Gary G. Smalley Executive Vice President and Chief Financial Officer

3