Centuri director buys 5,200 shares at $19.27

Centuri Holdings, Inc. (CTRI) director Dustin DeMaria purchased 5,200 shares of common stock in an open market transaction on September 18, 2026 at $19.27 per share.

Rhea-AI Filing Summary

Centuri Holdings, Inc. (CTRI) director Dustin DeMaria purchased 5,200 shares of common stock in an open market transaction on September 18, 2026 at $19.27 per share. Following this purchase, DeMaria directly owns 12,936 shares of Centuri Holdings common stock. No Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Net Buyer: 5,200 shares

Net Buy 1 txn

Insider DeMaria Dustin

Role Director

Bought 5,200 shs ($100K)

Type	Security	Shares	Price	Value
Purchase	Common Stock F1	5,200	$19.27	$100K

Holdings After Transaction: Common Stock — 12,936 shares (Direct)

Footnotes (1)

1. F1. The shares were purchased in an open market transaction.

Key Figures

Shares purchased: 5,200 shares Purchase price per share: $19.27 per share Shares owned after transaction: 12,936 shares +1 more

4 metrics

Shares purchased 5,200 shares Common stock acquired on September 18, 2026

Purchase price per share $19.27 per share Open market purchase on September 18, 2026

Shares owned after transaction 12,936 shares Direct ownership following the reported purchase

Net buy shares in filing 5,200 shares Net of all reported transactions in this Form 4

Key Terms

open market transaction, Rule 10b5-1, beneficial ownership

3 terms

open market transaction financial

"The shares were purchased in an open market transaction."

An open market transaction is a buy or sell of publicly traded securities executed on an exchange or other public trading venue where many buyers and sellers can participate. It matters to investors because these trades change the visible supply and demand for a stock—like shoppers moving prices in a busy marketplace—affecting share price, liquidity (how easily you can trade), and sometimes the balance of ownership.

Rule 10b5-1 regulatory

"The Rule 10b5-1 trading plan box is not checked."

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

beneficial ownership financial

"Shares directly owned after the transaction reflect beneficial ownership."

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.

FAQ

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

What insider transaction in CTRI stock did Dustin DeMaria report?

Dustin DeMaria reported a purchase of 5,200 Centuri Holdings (CTRI) common shares on September 18, 2026 in an open market transaction at $19.27 per share.

How many Centuri Holdings (CTRI) shares does Dustin DeMaria own after this transaction?

After the reported transaction, Dustin DeMaria directly owns 12,936 shares of Centuri Holdings common stock.

Was Dustin DeMaria’s CTRI trade made under a Rule 10b5-1 plan?

No. The filing indicates the Rule 10b5-1 trading plan box is not checked, and the footnote states only that the shares were purchased in an open market transaction.

What price did Dustin DeMaria pay for Centuri Holdings (CTRI) shares?

Dustin DeMaria paid an average price of $19.27 per share for the 5,200 Centuri Holdings common shares purchased on September 18, 2026.

Is Dustin DeMaria a director or officer of Centuri Holdings (CTRI)?

Dustin DeMaria is reported as a director of Centuri Holdings, Inc. and not as an officer or ten percent owner in this Form 4.

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

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Available on EDGAR 09/21/2026 - 11:13 AM Accepted by SEC EDGAR 09/21/2026 - 11:12 AM 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^*

DeMaria Dustin

(Last) (First) (Middle)

19820 NORTH

7TH AVENUE SUITE 120

(Street)

PHOENIX ARIZONA 85027

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Centuri Holdings, Inc. [ CTRI ]

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)
09/18/2026

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	09/18/2026		P		5,200(1)	A	$19.27	12,936	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 shares were purchased in an open market transaction.

Remarks:

	/s/ Jenarae N. Garland, as attorney-in-fact for Dustin DeMaria	09/21/2026
	** 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)