Chilton Kendra

SEC source: 0001981599-26-000028 · wk-form4_1772147989.xml · nonDerivative · entry 1

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,968

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: 0001981599-26-000014 · wk-form4_1771546428.xml · derivative · entry 3

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,186

Underlying: Common Stock · 2,186 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 6,245 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 2,186 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 6,245 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 2,186 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: 0001981599-26-000014 · wk-form4_1771546428.xml · nonDerivative · entry 2

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,422

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 6,245 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 2,186 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: 0001981599-26-000014 · wk-form4_1771546428.xml · nonDerivative · entry 1

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,236

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, 11,405 RSUs granted pursuant to the Plan and previously reported in Table II (the "Previous RSU Grants"), and 3,717 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: 0001062993-25-009441 · form4.xml · derivative · entry 3

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,405

Underlying: Common Stock · 5,050 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.

F3 · derivative.exercise_date: On May 12, 2024, the Reporting Person was granted 5,050 RSUs which vested in full on May 12, 2025.

F3 · derivative.expiration_date: On May 12, 2024, the Reporting Person was granted 5,050 RSUs which vested in full on May 12, 2025.

SEC source: 0001062993-25-009441 · form4.xml · nonDerivative · entry 2

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,717

F2 · kind: Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of RSUs. This is not an open market sale of securities.

SEC source: 0001062993-25-009441 · form4.xml · nonDerivative · entry 1

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,050

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: 0001062993-25-003835 · form4.xml · derivative · entry 2

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,705

Underlying: Common Stock · 6,705 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 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 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: 0001062993-25-003835 · form4.xml · derivative · entry 1

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,762

Underlying: Common Stock · 4,470 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 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: 0001062993-25-005183 · form4a.xml · derivative · entry 2

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,245

Underlying: Common Stock · 6,245 shares

Expires not disclosed

F4 · 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.

F2 · shares: This Form 4/A is being filed to amend the Form 4 filed by the Reporting Person on February 27, 2025, solely to correct a clerical error in the number of RSUs and PSUs (as defined below) previously reported for each of the acquisitions reported on Table II therein. This Form 4/A does not report any new transactions or otherwise modify any other transaction details that were previously reported.

F5 · 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 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.

F5 · 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 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.

F2 · derivative.underlying_shares: This Form 4/A is being filed to amend the Form 4 filed by the Reporting Person on February 27, 2025, solely to correct a clerical error in the number of RSUs and PSUs (as defined below) previously reported for each of the acquisitions reported on Table II therein. This Form 4/A does not report any new transactions or otherwise modify any other transaction details that were previously reported.

F2 · balance_after: This Form 4/A is being filed to amend the Form 4 filed by the Reporting Person on February 27, 2025, solely to correct a clerical error in the number of RSUs and PSUs (as defined below) previously reported for each of the acquisitions reported on Table II therein. This Form 4/A does not report any new transactions or otherwise modify any other transaction details that were previously reported.

SEC source: 0001062993-25-005183 · form4a.xml · derivative · entry 1

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,455

Underlying: Common Stock · 4,163 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 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 · shares: This Form 4/A is being filed to amend the Form 4 filed by the Reporting Person on February 27, 2025, solely to correct a clerical error in the number of RSUs and PSUs (as defined below) previously reported for each of the acquisitions reported on Table II therein. This Form 4/A does not report any new transactions or otherwise modify any other transaction details that were previously reported.

F3 · 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.

F3 · 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.

F2 · derivative.underlying_shares: This Form 4/A is being filed to amend the Form 4 filed by the Reporting Person on February 27, 2025, solely to correct a clerical error in the number of RSUs and PSUs (as defined below) previously reported for each of the acquisitions reported on Table II therein. This Form 4/A does not report any new transactions or otherwise modify any other transaction details that were previously reported.

F2 · balance_after: This Form 4/A is being filed to amend the Form 4 filed by the Reporting Person on February 27, 2025, solely to correct a clerical error in the number of RSUs and PSUs (as defined below) previously reported for each of the acquisitions reported on Table II therein. This Form 4/A does not report any new transactions or otherwise modify any other transaction details that were previously reported.

SEC source: 0001062993-25-002920 · form4.xml · derivative · entry 1

Chilton Kendra · CIK 0002045397 · SVP, Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,292

Underlying: Common Stock · 7,242 shares

Expires not disclosed

F1 · derivative.exercise_price: Represents a grant of restricted stock units ("RSUs") pursuant to the Issuer's Omnibus Incentive Plan. 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: The RSUs will vest on the second anniversary of the date of grant.

F2 · derivative.expiration_date: The RSUs will vest on the second anniversary of the date of grant.