Tutor Perini trusts sell 2.31M shares, hold 8.2%

Ronald N. Tutor and affiliated trusts report net sales of 2.31 million TPC shares for estate and tax planning, retaining an 8.2% beneficial stake.

Rhea-AI Filing Summary

TUTOR PERINI CORP (TPC) received an updated Schedule 13D/A from its long‑time executive and affiliated trusts reporting changes in their ownership of the company’s common stock. The amendment reflects net dispositions for estate and tax planning purposes while confirming that the reporting group remains a significant shareholder.

The Ronald N. Tutor Separate Property Trust, the Ronald N. Tutor 2018 Dynasty Trust and the Tutor Marital Property Trust collectively disposed of 2,310,000 net shares of common stock since March 3, 2026. After these transactions, Ronald N. Tutor may be deemed to beneficially own 4,344,131 shares, or 8.2% of the outstanding common stock, all with shared voting and dispositive power through the various trusts and related arrangements.

Key Figures

Net shares disposed since prior amendment: 2,310,000 shares Beneficial ownership of Ronald N. Tutor: 4,344,131 shares (8.2%) Shares held by Separate Property Trust (SPT): 701,477 shares (1.3%) +5 more

8 metrics

Net shares disposed since prior amendment 2,310,000 shares Net disposition by SPT, DT and TMPT since March 3, 2026

Beneficial ownership of Ronald N. Tutor 4,344,131 shares (8.2%) Tutor Perini common stock as of the amendment date

Shares held by Separate Property Trust (SPT) 701,477 shares (1.3%) Tutor Perini common stock beneficially owned by SPT

Shares held by 2018 Dynasty Trust (DT) 733,255 shares (1.4%) Tutor Perini common stock beneficially owned by DT

Shares held by Tutor Marital Property Trust (TMPT) 2,909,399 shares (5.5%) Tutor Perini common stock beneficially owned by TMPT

Shares outstanding baseline 52,569,117 shares Tutor Perini common stock outstanding as of August 31, 2026

Stock options counted for TMPT 274,432 shares Options currently exercisable or exercisable within 60 days

Planned sale period 18 months Intended period for share sales as part of estate and tax planning

Key Terms

Schedule 13D, beneficial ownership, dispositive power, trust advisor, +1 more

5 terms

Schedule 13D regulatory

"This Amendment No. 25 amends and supplements the information set forth in"

A Schedule 13D is a legal document that investors file with regulators when they buy a large enough stake in a company to potentially influence its management or decisions. It provides details about the investor’s intention, ownership stake, and plans, helping other investors understand who is gaining control and what their motives might be.

beneficial ownership financial

"relating to the beneficial ownership of shares of Common Stock by"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

dispositive power financial

"shared voting and dispositive power with respect to all shares shown"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

trust advisor financial

"Mr. Tutor is the trust advisor to the DT, in which position"

stock options financial

"includes 274,432 stock options that are currently exercisable or will first"

Stock options are agreements that give a person the right to buy or sell a company's stock at a specific price within a certain time frame. They are often used as a reward or incentive, similar to a coupon that can be used later if the stock price rises, allowing the holder to make a profit.

FAQ

What does the new Schedule 13D/A disclose about TPC ownership by Ronald N. Tutor?

The amendment reports that Ronald N. Tutor, through various trusts and arrangements, may be deemed to beneficially own 4,344,131 shares of Tutor Perini common stock, representing 8.2% of the company’s outstanding shares plus certain currently exercisable stock options.

How many Tutor Perini (TPC) shares were sold according to this Schedule 13D/A?

The filing states that the Ronald N. Tutor Separate Property Trust, Dynasty Trust and Marital Property Trust disposed of 2,310,000 net shares of Tutor Perini common stock since the prior amendment filed on March 3, 2026.

Why did Ronald N. Tutor reduce his TPC holdings?

According to the filing, Ronald N. Tutor plans to sell shares over an 18‑month period as part of his estate and tax planning as he approaches retirement. He states the sales are for personal reasons and expresses confidence in the company’s business and future.

What percentage of Tutor Perini (TPC) does each Tutor-related trust own?

The filing reports that the Separate Property Trust holds 701,477 shares (about 1.3%), the 2018 Dynasty Trust holds 733,255 shares (about 1.4%), and the Tutor Marital Property Trust holds 2,909,399 shares (about 5.5%) of Tutor Perini common stock.

How many Tutor Perini (TPC) shares are outstanding in this Schedule 13D/A?

Ownership percentages are based on 52,569,117 shares of Tutor Perini common stock outstanding as of August 31, 2026, plus 274,432 shares subject to stock options that the Tutor Marital Property Trust can acquire within 60 days.

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Available on EDGAR 09/02/2026 - 04:56 PM Accepted by SEC EDGAR 09/02/2026 - 04:55 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 25)

Tutor Perini Corporation

(Name of Issuer)

Common Stock, par value $1.00 per share

(Title of Class of Securities)

(CUSIP Number)

Ronald N. Tutor
15901 Olden Street,
Sylmar, CA, 91342
818-362-8391

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

08/31/2026

(Date of Event Which Requires Filing of This Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

schemaVersion:

SCHEDULE 13D

CUSIP No.

1

Name of reporting person

RONALD N. TUTOR

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 4,344,131.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 4,344,131.00

11

Aggregate amount beneficially owned by each reporting person

4,344,131.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

8.2 %

14

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13D

CUSIP No.

1

Name of reporting person

THE RONALD N. TUTOR SEPARATE PROPERTY TRUST

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

CALIFORNIA

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 701,477.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 701,477.00

11

Aggregate amount beneficially owned by each reporting person

701,477.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

1.3 %

14

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13D

CUSIP No.

1

Name of reporting person

RONALD N. TUTOR 2018 DYNASTY TRUST

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

CALIFORNIA

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 733,255.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 733,255.00

11

Aggregate amount beneficially owned by each reporting person

733,255.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

1.4 %

14

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13D

CUSIP No.

1

Name of reporting person

TUTOR MARITAL PROPERTY TRUST

2

Check the appropriate box if a member of a Group (See Instructions)

(a)
(b)

3

SEC use only

4

Source of funds (See Instructions)

OO

5

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

6

Citizenship or place of organization

CALIFORNIA

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 2,909,399.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 2,909,399.00

11

Aggregate amount beneficially owned by each reporting person

2,909,399.00

12

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

13

Percent of class represented by amount in Row (11)

5.5 %

14

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13D

Item 1.	Security and Issuer
(a)	Title of Class of Securities: Common Stock, par value $1.00 per share
(b)	Name of Issuer: Tutor Perini Corporation
(c)	Address of Issuer's Principal Executive Offices: 15901 Olden Street, Sylmar, CALIFORNIA , 91342.
Item 1 Comment: This Amendment No. 25 (this "Amendment") amends and supplements the information set forth in Schedule 13D that was originally filed on September 18, 2008, (the "Original Schedule 13D") as amended by Amendment No. 1 previously filed on March 19, 2010, as amended by Amendment No. 2 previously filed on June 11, 2010, as amended by Amendment No. 3 previously filed on September 16, 2010, as amended by Amendment No. 4 previously filed on September 20, 2010, as amended by Amendment No. 5 previously filed on December 2, 2010, as amended by Amendment No. 6 previously filed on March 18, 2011, as amended by Amendment No. 7 previously filed on May 20, 2011, as amended by Amendment No. 8 previously filed on June 7, 2011, as amended by Amendment No. 9 previously filed on August 18, 2011, as amended by Amendment No. 10 previously filed on August 26, 2011, as amended by Amendment No. 11 previously filed on September 16, 2011, as amended by Amendment No. 12 previously filed on December 6, 2011, as amended by Amendment No. 13 previously filed on March 6, 2012 as amended by Amendment No. 14 previously filed on March 21, 2012, as amended by Amendment No. 15 previously filed on September 21, 2012, as amended by Amendment No. 16 previously filed on November 29, 2012, as amended by Amendment No. 17 previously filed on May 22, 2013, as amended by Amendment No. 18 previously filed on May 15, 2014, as amended by Amendment No. 19 previously filed on March 26, 2015, as amended by Amendment No. 20 previously filed on June 11, 2020, as amended by Amendment No. 21 previously filed on June 21, 2021, as amended by Amendment No. 22 previously filed on November 13, 2024, as amended by Amendment No. 23 previously filed on August 27, 2025, as amended by Amendment No. 24 previously filed on March 3, 2026 (as amended through the date hereof, the "Schedule 13D") relating to the beneficial ownership of shares of Common Stock by Ronald N. Tutor, the Ronald N. Tutor Separate Property Trust, a California Trust (the "SPT"), the Ronald N. Tutor 2018 Dynasty Trust (the "DT") and the Tutor Marital Property Trust (the "TMPT"). Capitalized terms used herein and not otherwise defined shall have the respective meanings ascribed to them in the Schedule 13D. This Amendment reflects the net disposition of 2,310,000 shares of Common Stock by the SPT, DT and TMPT since the last amendment filed on March 3, 2026, the purpose of which is noted immediately below in Item 4.
Item 4.	Purpose of Transaction
	The following information hereby is added to the existing disclosure: Since the last Amendment filed on March 3, 2026, the SPT, DT and TMPT disposed of 2,310,000 net shares of Common Stock beneficially owned by Mr. Tutor. As disclosed in his Schedule 13D/A previously filed with the SEC on March 3, 2026, Ronald N. Tutor, the Company's Executive Chairman, informed the Company that he intends to make sales of some or all of his shares over the next 18 months as part of his overall estate and tax planning as he approaches retirement. Mr. Tutor noted that such sales are solely for personal reasons and he has a high degree of confidence in the business and future of the Company based on its leadership, backlog, bidding opportunities, cash position, as well as its outlook for revenue and earnings growth in 2026 and beyond, and expected future operating cash generation.
Item 5.	Interest in Securities of the Issuer
(a)	Item 5 hereby is replaced in its entirety with the following: The following information is based on a total of 52,569,117 shares of Common Stock outstanding as of August 31, 2026, plus 274,432 shares that TMPT has the right to acquire upon the exercise of stock options that are currently exercisable or will first become exercisable within 60 days of the date hereof. (a), (b) As of the date hereof, the Reporting Persons may be deemed to have beneficial ownership over shares of Common Stock as set forth below, and each such Reporting Person has shared voting and dispositive power with respect to all shares shown as being beneficially owned by him, except as otherwise indicated. (i) Mr. Tutor may be deemed to have beneficial ownership of 4,344,131 shares of Common Stock, or 8.2%, with respect to which Mr. Tutor has shared voting power and shared dispositive power over 4,344,131 of such shares. Mr. Tutor may be deemed to have beneficial ownership of 701,477 shares of Common Stock owned by the SPT and 2,909,399 shares of Common Stock owned by the TMPT, which includes 274,432 stock options that are currently exercisable or will first become exercisable within 60 days of the date hereof. Mr. Tutor is the beneficiary and trustee of the SPT and TMPT. The shares that Mr. Tutor may be deemed to beneficially own also include 733,255 shares of Common Stock owned by the DT, of which Mr. Tutor's issue are the beneficiaries. Robert Nida is trustee with sole voting and dispositive power with respect to the Common Stock held by the DT. Mr. Tutor is the trust advisor to the DT, in which position Mr. Tutor has sole discretion to remove and replace the trustee, as well as the sole authority to reacquire or exchange the property of the DT, including the Common Stock, by substituting property of equal value. (ii) The SPT may be deemed to have beneficial ownership of 701,477 shares of Common Stock, or 1.3%. Neither the filing of this Schedule 13D nor any of its contents shall be deemed to constitute an admission by the SPT that it is the beneficial owner of any of the Common Stock held by the DT or TMPT referred to herein for purposes of Section 13(d) of the Exchange Act, or for any other purpose, and such beneficial ownership is expressly disclaimed. (iii) The DT may be deemed to have beneficial ownership of 733,255 shares of Common Stock, or 1.4%. The DT has sole or shared voting or dispositive power with respect to such shares of Common Stock; however, Mr. Tutor as trust advisor to the DT retains the authority to reacquire the Common Stock from the DT. Neither the filing of this Schedule 13D nor any of its contents shall be deemed to constitute an admission by the DT that it is the beneficial owner of any of the Common Stock held by the SPT or the TMPT referred to herein for purposes of Section 13(d) of the Exchange Act, or for any other purpose, and such beneficial ownership is expressly disclaimed. (iv) The TMPT may be deemed to have beneficial ownership of 2,909,399 shares of Common Stock, or 5.5%. Neither the filing of this Schedule 13D nor any of its contents shall be deemed to constitute an admission by the TMPT that it is the beneficial owner of any of the Common Stock held by the DT or SPT referred to herein for purposes of Section 13(d) of the Exchange Act, or for any other purpose, and such beneficial ownership is expressly disclaimed.
(b)	See Item 5(a) above.
(c)	Transactions in the Common Stock effected by the Reporting Persons in the 60 days prior to this Amendment are described in Schedule A and incorporated herein by reference.
(d)	Except as described in this Schedule 13D, no person has the power to direct the receipt of dividends on or the proceeds of sales of, the shares of Common Stock beneficially owned by the Reporting Persons.
(e)	Not applicable.
Item 7.	Material to be Filed as Exhibits.
	Exhibit No. Description 99.1 Schedule A Sales of Common Stock by Reporting Person during the prior 60 days

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

RONALD N. TUTOR

Signature:	/s/ Ronald N. Tutor
Name/Title:	Ronald N. Tutor
Date:	09/02/2026

THE RONALD N. TUTOR SEPARATE PROPERTY TRUST

Signature:	/s/ Ronald N. Tutor
Name/Title:	Ronald N. Tutor, Trustee
Date:	09/02/2026

RONALD N. TUTOR 2018 DYNASTY TRUST

Signature:	/s/ Ronald N. Tutor
Name/Title:	Ronald N. Tutor, Trust Advisor
Date:	09/02/2026

TUTOR MARITAL PROPERTY TRUST

Signature:	/s/ Ronald N. Tutor
Name/Title:	Ronald N. Tutor, Trustee
Date:	09/02/2026