Primoris director receives 268-share stock grant

Primoris Services Corp director Carla S. Mashinski received a stock grant as part of regular board compensation.

Rhea-AI Filing Summary

Primoris Services Corp director Carla S. Mashinski received a stock grant as part of regular board compensation. On the reported date, she acquired 268 shares of common stock at no cash cost under the non-employee director compensation program.

The program targets a grant value of $37,500, calculated using the average closing price during March 2026, which determined the 268-share amount. After this award, she directly holds 22,092 shares. The granted shares cannot be sold for twelve months from the grant date.

Insider Trade Summary

Grant/Award: 268 shares

Grant/Award 1 txn

Insider MASHINSKI CARLA S

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	268	$0.00	$0.00

Holdings After Transaction: Common Stock — 22,092 shares (Direct)

Footnotes (1)

1. F1. The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during March 2026, resulting in a grant of 268 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

Key Figures

Stock grant size: 268 shares Grant target value: $37,500 Shares after transaction: 22,092 shares +2 more

5 metrics

Stock grant size 268 shares Restricted stock award to director

Grant target value $37,500 Non-employee director compensation program

Shares after transaction 22,092 shares Director’s direct holdings following grant

Pricing reference period March 2026 average closing price Used to determine shares for the $37,500 grant

Sale restriction period 12 months Granted shares cannot be sold for twelve months from grant

Key Terms

non-employee director compensation program, restricted stock, average closing price, grant of 268 shares, +1 more

5 terms

non-employee director compensation program financial

"The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024..."

restricted stock financial

"provides for the issuance of restricted stock with a value of $37,500."

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

average closing price financial

"The price per share was based on the average closing price during March 2026..."

The average closing price is the arithmetic mean of a security’s end-of-day prices over a chosen period, found by adding each day’s closing price and dividing by the number of days. It smooths out daily ups and downs to show a typical market value—like averaging daily temperatures to understand a month’s climate—and helps investors spot trends, judge whether a stock is generally rising or falling, and make clearer buy or sell decisions.

grant of 268 shares financial

"resulting in a grant of 268 shares of stock."

cannot be sold for a period of twelve months regulatory

"The shares of stock cannot be sold for a period of twelve months from the date of grant."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Primoris (PRIM) director Carla Mashinski report in this Form 4?

Director Carla S. Mashinski reported receiving 268 shares of Primoris common stock as a grant. The award came under the company’s non-employee director compensation program and reflects stock-based compensation rather than an open-market purchase or sale.

How was the Primoris (PRIM) director stock grant value determined?

The stock grant to Carla Mashinski was set at a target value of $37,500. Primoris calculated the number of shares using the average closing price of its common stock during March 2026, resulting in an award of 268 shares.

Can the newly granted Primoris (PRIM) shares be sold immediately?

No, the granted shares cannot be sold immediately. According to the footnote, the 268 shares awarded to director Carla Mashinski are subject to a twelve-month holding restriction, meaning they cannot be sold for one year from the grant date.

How many Primoris (PRIM) shares does the director hold after this transaction?

Following the grant, director Carla Mashinski directly holds 22,092 shares of Primoris common stock. This total reflects her position after receiving the 268-share award reported in the Form 4 insider filing.

Is this Primoris (PRIM) Form 4 transaction a market buy or sell?

This transaction is not a market buy or sell. It is an acquisition coded as a grant or award, where director Carla Mashinski received 268 shares as part of Primoris’s non-employee director compensation program, with no cash price per share reported.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/01/2026 - 05:09 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MASHINSKI CARLA S

(Last) (First) (Middle)

C/O PRIMORIS SERVICES CORPORATION

2300 N. FIELD STREET, SUITE 1900

(Street)

DALLAS TEXAS 75201

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Primoris Services Corp [ PRIM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	04/30/2026		A		268	A	(1)	22,092	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The non-employee director compensation program adopted by the Board in May 2011 and updated July 2024, provides for the issuance of restricted stock with a value of $37,500. The price per share was based on the average closing price during March 2026, resulting in a grant of 268 shares of stock. The shares of stock cannot be sold for a period of twelve months from the date of grant.

	/s/ Kenneth M. Dodgen, Attorney-in-Fact	05/01/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)