Brown Christian

SEC source: 0001981599-26-000032 · wk-form4_1772148092.xml · nonDerivative · entry 1

Brown Christian · CIK 0002043826 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 197,904

F1 · kind: Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units. This is not an open market sale of securities.

SEC source: 0001981599-26-000012 · wk-form4_1771546350.xml · derivative · entry 3

Brown Christian · CIK 0002043826 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,417

Underlying: Common Stock · 31,417 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: The reported transaction involved the reporting person's receipt of the 2025 Earned RSUs. The reporting person previously reported the 2025 Performance Award in Table II of Form 4. As of the date of this Form 4, the 2025 Performance Award may be settled only by delivery of a number of shares of the Issuer's common stock equal to the number of 2025 Earned RSUs plus any additional RSUs subject to the 2025 Performance Award that are earned based on the level of achievement of the performance goals for the Second Performance Period.

F3 · derivative.exercise_date: On February 25, 2025, the reporting person was granted a total of 89,720 performance stock units pursuant to the Plan (the "2025 Performance Award"), assuming target level of achievement of the applicable performance goals. One-third of the units subject to the 2025 Performance Award were eligible to be earned based on achievement of performance goals for the fiscal year of the Issuer ended December 28, 2025 (the "First Performance Period"), and the remaining two-thirds of the units subject to the 2025 Performance Award are eligible to be earned based on achievement of performance goals for the two fiscal years of the Issuer ending January 2, 2028 (the "Second Performance Period").

F4 · derivative.exercise_date: On February 17, 2026, the Issuer's board of directors certified achievement of the performance goals for the First Performance Period at 105.1% of the target level, resulting in the reporting person earning 31,417 RSUs (the "2025 Earned RSUs"). The 2025 Earned RSUs are scheduled to vest based on the reporting person's continued service through the later of February 25, 2028 and the date that the Issuer's board of directors (or a committee thereof) certifies the level of achievement of the performance goals for the Second Performance Period.

F3 · derivative.expiration_date: On February 25, 2025, the reporting person was granted a total of 89,720 performance stock units pursuant to the Plan (the "2025 Performance Award"), assuming target level of achievement of the applicable performance goals. One-third of the units subject to the 2025 Performance Award were eligible to be earned based on achievement of performance goals for the fiscal year of the Issuer ended December 28, 2025 (the "First Performance Period"), and the remaining two-thirds of the units subject to the 2025 Performance Award are eligible to be earned based on achievement of performance goals for the two fiscal years of the Issuer ending January 2, 2028 (the "Second Performance Period").

F4 · derivative.expiration_date: On February 17, 2026, the Issuer's board of directors certified achievement of the performance goals for the First Performance Period at 105.1% of the target level, resulting in the reporting person earning 31,417 RSUs (the "2025 Earned RSUs"). The 2025 Earned RSUs are scheduled to vest based on the reporting person's continued service through the later of February 25, 2028 and the date that the Issuer's board of directors (or a committee thereof) certifies the level of achievement of the performance goals for the Second Performance Period.

F5 · balance_after: The reported transaction involved the reporting person's receipt of the 2025 Earned RSUs. The reporting person previously reported the 2025 Performance Award in Table II of Form 4. As of the date of this Form 4, the 2025 Performance Award may be settled only by delivery of a number of shares of the Issuer's common stock equal to the number of 2025 Earned RSUs plus any additional RSUs subject to the 2025 Performance Award that are earned based on the level of achievement of the performance goals for the Second Performance Period.

SEC source: 0001981599-26-000012 · wk-form4_1771546350.xml · nonDerivative · entry 2

Brown Christian · CIK 0002043826 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 202,797

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · price: On February 25, 2025, the reporting person was granted a total of 89,720 performance stock units pursuant to the Plan (the "2025 Performance Award"), assuming target level of achievement of the applicable performance goals. One-third of the units subject to the 2025 Performance Award were eligible to be earned based on achievement of performance goals for the fiscal year of the Issuer ended December 28, 2025 (the "First Performance Period"), and the remaining two-thirds of the units subject to the 2025 Performance Award are eligible to be earned based on achievement of performance goals for the two fiscal years of the Issuer ending January 2, 2028 (the "Second Performance Period").

F4 · price: On February 17, 2026, the Issuer's board of directors certified achievement of the performance goals for the First Performance Period at 105.1% of the target level, resulting in the reporting person earning 31,417 RSUs (the "2025 Earned RSUs"). The 2025 Earned RSUs are scheduled to vest based on the reporting person's continued service through the later of February 25, 2028 and the date that the Issuer's board of directors (or a committee thereof) certifies the level of achievement of the performance goals for the Second Performance Period.

SEC source: 0001981599-26-000012 · wk-form4_1771546350.xml · nonDerivative · entry 1

Brown Christian · CIK 0002043826 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 171,380

F1 · shares: Represents the grant of restricted stock units ("RSUs") pursuant to the Omnibus Incentive Plan (the "Plan") of Centuri Holdings, Inc. (the "Issuer") on February 17, 2026 (the "2026 RSU Grant"). Each RSU subject to the 2026 RSU Grant is the economic equivalent of one share of the Issuer's common stock and may be settled by delivery of one share of the Issuer's common stock.

F2 · balance_after: The reporting person has reported prior grants of RSUs in Table II of Form 4. The total reported in Column 5 of Table I includes the 2026 RSU Grant, 103,608 RSUs granted pursuant to the Plan and previously reported in Table II (the "Previous RSU Grants"), and 22,089 shares of common stock. As of the date of this Form 4, the Previous RSU Grants may be settled only by delivery of an equal number of shares of the Issuer's common stock.

SEC source: 0001981599-25-000099 · wk-form4_1765242812.xml · nonDerivative · entry 1

Brown Christian · CIK 0002043826 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,089

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units on December 3, 2025. The sale was to satisfy tax withholding obligations to be funded by a 'sell to cover' transaction and does not represent a discretionary transaction by the Reporting Person.

SEC source: 0001981599-25-000093 · wk-form4_1764979780.xml · derivative · entry 2

Brown Christian · CIK 0002043826 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,608

Underlying: Common Stock · 29,197 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit (RSU) is the economic equivalent of one share of the Issuer's common stock. Pursuant to the applicable RSU award agreement by and between the Issuer and the Reporting Person, shares of the Issuer's common stock were delivered on a one-for-one basis upon the settlement of the RSUs.

F2 · derivative.exercise_date: On December 3, 2024, the Reporting Person was granted 72,992 RSUs, 40% of which vested on December 3, 2025, and 30% of which will vest on each of December 3, 2026 and December 3, 2027, in each case subject to the Reporting Person's continued services through the vesting dates pursuant to that certain offer letter, dated November 4, 2024, by and between the Issuer and the Reporting Person and the applicable award agreement and other terms and conditions set forth therein.

F2 · derivative.expiration_date: On December 3, 2024, the Reporting Person was granted 72,992 RSUs, 40% of which vested on December 3, 2025, and 30% of which will vest on each of December 3, 2026 and December 3, 2027, in each case subject to the Reporting Person's continued services through the vesting dates pursuant to that certain offer letter, dated November 4, 2024, by and between the Issuer and the Reporting Person and the applicable award agreement and other terms and conditions set forth therein.

SEC source: 0001981599-25-000093 · wk-form4_1764979780.xml · nonDerivative · entry 1

Brown Christian · CIK 0002043826 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,197

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit (RSU) is the economic equivalent of one share of the Issuer's common stock. Pursuant to the applicable RSU award agreement by and between the Issuer and the Reporting Person, shares of the Issuer's common stock were delivered on a one-for-one basis upon the settlement of the RSUs.

SEC source: 0001062993-25-003831 · form4.xml · derivative · entry 2

Brown Christian · CIK 0002043826 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,720

Underlying: Common Stock · 89,720 shares

Expires not disclosed

F3 · derivative.exercise_price: Represents the grant of performance stock units ("PSUs") pursuant to the Plan. Each PSU is the economic equivalent of one share of the Issuer's common stock and may be settled by delivery of one share of the Issuer's common stock or, in certain cases as set forth in the applicable PSU award agreement by and between the Issuer and the Reporting Person (the "PSU Award Agreement"), may be settled in cash.

F4 · derivative.exercise_date: The PSUs will be eligible to be earned by the Reporting Person based on the achievement of certain performance metrics, as set forth in the PSU Award Agreement, over a one-year initial performance period from January 1, 2025 to December 31, 2025 and a subsequent two-year performance period from January 1, 2026 to December 31, 2027 (collectively, the "Performance Period"). The number of PSUs indicated reflects the "target" number of PSUs granted to the Reporting Person and the number of PSUs earned could range from 50% to 200% of such target number. Earned shares will vest after the Performance Period.

F4 · derivative.expiration_date: The PSUs will be eligible to be earned by the Reporting Person based on the achievement of certain performance metrics, as set forth in the PSU Award Agreement, over a one-year initial performance period from January 1, 2025 to December 31, 2025 and a subsequent two-year performance period from January 1, 2026 to December 31, 2027 (collectively, the "Performance Period"). The number of PSUs indicated reflects the "target" number of PSUs granted to the Reporting Person and the number of PSUs earned could range from 50% to 200% of such target number. Earned shares will vest after the Performance Period.

SEC source: 0001062993-25-003831 · form4.xml · derivative · entry 1

Brown Christian · CIK 0002043826 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,805

Underlying: Common Stock · 59,813 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents the grant of restricted stock units ("RSUs") pursuant to the Issuer's Omnibus Incentive Plan (the "Plan"). Each RSU is the economic equivalent of one share of the Issuer's common stock and may be settled by delivery of one share of the Issuer's common stock or, in certain cases as set forth in the applicable RSU award agreement by and between the Issuer and the Reporting Person, may be settled in cash.

F2 · derivative.exercise_date: The RSUs will vest ratably over three years, with one-third of the RSUs to vest on each of the first three anniversaries of the date of grant.

F2 · derivative.expiration_date: The RSUs will vest ratably over three years, with one-third of the RSUs to vest on each of the first three anniversaries of the date of grant.

SEC source: 0001062993-24-020134 · form4.xml · derivative · entry 1

Brown Christian · CIK 0002043826 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,992

Underlying: Common Stock · 72,992 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents the grant of restricted stock units ("RSUs") in connection with the Reporting Person's appointment as Chief Executive Officer, effective December 3, 2024. Each RSU is the economic equivalent of one share of the Issuer's common stock and may be settled by delivery of an equal number of shares of the Issuer's common stock or, in certain circumstances, may be settled in cash.

F2 · derivative.exercise_date: 40% of the RSUs will vest on December 3, 2025, and 30% of the RSUs will vest on each of December 3, 2026 and December 3, 2027, in each case subject to the Reporting Person's continued services through the vesting dates pursuant to that certain offer letter, dated November 4, 2024, by and between the Issuer and the Reporting Person and the applicable award agreement and other terms and conditions set forth therein.

F2 · derivative.expiration_date: 40% of the RSUs will vest on December 3, 2025, and 30% of the RSUs will vest on each of December 3, 2026 and December 3, 2027, in each case subject to the Reporting Person's continued services through the vesting dates pursuant to that certain offer letter, dated November 4, 2024, by and between the Issuer and the Reporting Person and the applicable award agreement and other terms and conditions set forth therein.