AOS

SEC source: 0001706446-26-000006 · wk-form4_1783017522.xml · derivative · entry 1

Anderson Carrie L · CIK 0001706446 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,060

Underlying: Common Stock · 32,060 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock.

F2 · derivative.exercise_date: The restricted stock units were granted on 07/01/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 07/01/2032.

F2 · derivative.expiration_date: The restricted stock units were granted on 07/01/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 07/01/2032.

SEC source: 0001930489-26-000004 · wk-form4a_1777647516.xml · derivative · entry 1

Saak Aaron W · CIK 0001930489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,296

Underlying: Common Stock · 2,296 shares

Expires not disclosed

F1 · derivative.exercise_date: The Plan permits the participant to defer the receipt of the award, and Mr. Saak has made a deferral.

F1 · derivative.expiration_date: The Plan permits the participant to defer the receipt of the award, and Mr. Saak has made a deferral.

SEC source: 0001930489-26-000002 · wk-form4_1776280260.xml · derivative · entry 1

Saak Aaron W · CIK 0001930489 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,262

Underlying: Common Stock · 2,262 shares

Expires not disclosed

F1 · derivative.exercise_date: The Plan permits the participant to defer the receipt of the award, and Mr. Saak has made a deferral.

F1 · derivative.expiration_date: The Plan permits the participant to defer the receipt of the award, and Mr. Saak has made a deferral.

SEC source: 0000091142-26-000074 · wk-form4_1776280011.xml · nonDerivative · entry 1

SMITH MARK D · CIK 0001236626 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,504

F1 · shares: Payment of retainer in stock under the A. O. Smith Corporation directors' compensation program based on the average of the high and low price of Common Stock on April 13, 2026.

SEC source: 0000091142-26-000072 · wk-form4_1776279789.xml · nonDerivative · entry 1

MARTIN LOIS M · CIK 0001282708 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,445

F1 · shares: Payment of retainer in stock under the A. O. Smith Corporation directors' compensation program based on the average of the high and low price of Common Stock on April 13, 2026.

F2 · balance_after: Ms. Martin is a participant in the A. O. Smith Dividend Reinvestment Plan ('Plan") and receives a quarterly dividend pursuant to the Plan. The total amount of dividends received was 89 shares of Common Stock.

SEC source: 0000091142-26-000068 · wk-form4_1776279011.xml · nonDerivative · entry 1

Kadri Ilham · CIK 0001566514 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,579

F1 · shares: Payment of retainer in stock under the A. O. Smith Corporation directors' compensation program based on the average of the high and low price of Common Stock on April 13, 2026.

SEC source: 0001503349-26-000003 · wk-form4_1776279129.xml · derivative · entry 2

Larsen Michael M · CIK 0001503349 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,284

Underlying: Common Stock · 2,262 shares

Expires not disclosed

F1 · shares: Payment of retainer in Restricted Stock Units under the A. O. Smith Nonqualified Deferred Compensation Plan based on the average of the high and the low price of Common Stock on April 13, 2026.

F2 · derivative.exercise_date: The Plan permits the participant to defer the receipt of the award, and Mr. Larsen has made a deferral.

F2 · derivative.expiration_date: The Plan permits the participant to defer the receipt of the award, and Mr. Larsen has made a deferral.

F3 · balance_after: The Restricted Stock Units receive a quarterly dividend pursuant to a dividend reinvestment feature of the A. O. Smith Nonqualified Deferred Compensation Plan. The total amount of the dividends received was 215 units of Restricted Stock Units.

SEC source: 0000091142-26-000070 · wk-form4_1776279699.xml · nonDerivative · entry 1

MAPES CHRISTOPHER L · CIK 0001219555 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,684

F1 · shares: Payment of retainer in stock under the A. O. Smith Corporation directors' compensation program based on the average of the high and low price of Common Stock on April 13, 2026.

F2 · balance_after: Mr. Mapes is a participant in the A. O. Smith Dividend Reinvestment Plan ('Plan") and receives a quarterly dividend pursuant to the Plan. The total amount of dividends received was 145 shares of Common Stock.

SEC source: 0001575676-26-000002 · wk-form4_1776278744.xml · nonDerivative · entry 1

Fister Todd W · CIK 0001575676 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,356

F1 · shares: Payment of retainer in stock under the A. O. Smith Corporation directors' compensation program based on the average of the high and low price of Common Stock on April 13, 2026.

SEC source: 0001181629-26-000004 · wk-form4_1776278888.xml · derivative · entry 2

HOLT VICTORIA M · CIK 0001181629 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,284

Underlying: Common Stock · 2,262 shares

Expires not disclosed

F1 · shares: Payment of retainer in Restricted Stock Units under the A. O. Smith Nonqualified Deferred Compensation Plan based on the average of the high and the low price of Common Stock on April 13, 2026.

F2 · derivative.exercise_date: The Plan permits the participant to defer the receipt of the award, and Ms. Holt has made a deferral.

F2 · derivative.expiration_date: The Plan permits the participant to defer the receipt of the award, and Ms. Holt has made a deferral.

F3 · balance_after: The Restricted Stock Units receive a quarterly dividend pursuant to a dividend reinvestment feature of the A. O. Smith Nonqualified Deferred Compensation Plan. The total amount of the dividends received was 215 units of Restricted Stock Units.

SEC source: 0000091142-26-000066 · wk-form4_1772656245.xml · nonDerivative · entry 1

Schuh Darrell W. · CIK 0002016343 · SVP; President & GM Lochinvar

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,201

F1 · price: The price in Column 4 is a weighted average price. The prices actually received ranged from $74.26 to $74.52. The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range for all transactions reported on this Form 4 utilizing an average weighted price.

F2 · balance_after: Mr. Schuh is a participant in the A. O. Smith Dividend Reinvestment Plan ('Plan") and receives a quarterly dividend pursuant to the Plan. The total amount of dividends received was 10 shares of Common Stock.

SEC source: 0000091142-26-000060 · wk-form4_1771947144.xml · nonDerivative · entry 1

Carver Samuel M. · CIK 0001854336 · SVP - Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,713

F1 · price: Bona fide gift.

SEC source: 0000091142-26-000058 · wk-form4_1771356696.xml · derivative · entry 4

Wheeler Kevin J. · CIK 0001566416 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 36,045 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 represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F4 · derivative.exercise_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

F4 · derivative.expiration_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

SEC source: 0000091142-26-000058 · wk-form4_1771356696.xml · nonDerivative · entry 3

Wheeler Kevin J. · CIK 0001566416 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 128,348

F3 · shares: Represents vesting of performance stock units at 150% of the target award amount and conversion to shares of A. O. Smith Corporation's Common Stock upon achievement of performance criteria for the 2023 - 2025 performance period.

SEC source: 0000091142-26-000058 · wk-form4_1771356696.xml · nonDerivative · entry 2

Wheeler Kevin J. · CIK 0001566416 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 119,750

F2 · shares: Shares withheld by A. O. Smith Corporation to satisfy tax withholding requirements on vesting of restricted stock units.

SEC source: 0000091142-26-000058 · wk-form4_1771356696.xml · nonDerivative · entry 1

Wheeler Kevin J. · CIK 0001566416 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 136,692

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 · shares: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

SEC source: 0000091142-26-000056 · wk-form4_1771356566.xml · derivative · entry 4

STERN JAMES F · CIK 0001399737 · Exec VP, Corp Dev, Strat & Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Commn Stock · 6,850 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 represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F4 · derivative.exercise_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/13/2026.

F4 · derivative.expiration_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/13/2026.

SEC source: 0000091142-26-000056 · wk-form4_1771356566.xml · nonDerivative · entry 3

STERN JAMES F · CIK 0001399737 · Exec VP, Corp Dev, Strat & Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,547

F3 · shares: Represents vesting of performance stock units at 150% of the target award amount and conversion to shares of A. O. Smith Corporation's Common Stock upon achievement of performance criteria for the 2023 - 2025 performance period.

SEC source: 0000091142-26-000056 · wk-form4_1771356566.xml · nonDerivative · entry 2

STERN JAMES F · CIK 0001399737 · Exec VP, Corp Dev, Strat & Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,914

F2 · shares: Shares withheld by A. O. Smith Corporation to satisfy tax withholding requirements on vesting of restricted stock units.

SEC source: 0000091142-26-000056 · wk-form4_1771356566.xml · nonDerivative · entry 1

STERN JAMES F · CIK 0001399737 · Exec VP, Corp Dev, Strat & Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,134

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 · shares: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

SEC source: 0000091142-26-000054 · wk-form4_1771356299.xml · derivative · entry 3

Schuh Darrell W. · CIK 0002016343 · SVP; President & GM Lochinvar

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,460 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 represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F4 · derivative.exercise_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

F4 · derivative.expiration_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

SEC source: 0000091142-26-000054 · wk-form4_1771356299.xml · nonDerivative · entry 2

Schuh Darrell W. · CIK 0002016343 · SVP; President & GM Lochinvar

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,295

F3 · shares: Shares withheld by A. O. Smith Corporation to satisfy tax withholding requirements on vesting of restricted stock units.

SEC source: 0000091142-26-000054 · wk-form4_1771356299.xml · nonDerivative · entry 1

Schuh Darrell W. · CIK 0002016343 · SVP; President & GM Lochinvar

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,651

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 · shares: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F2 · balance_after: Mr. Schuh is a participant in the A. O. Smith Dividend Reinvestment Plan ('Plan") and receives a quarterly dividend pursuant to the Plan. The total amount of dividends received was 41 shares of Common Stock.

SEC source: 0000091142-26-000050 · wk-form4_1771356001.xml · derivative · entry 3

Otchere Benjamin A · CIK 0001895331 · Vice President and Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,460 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 represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F4 · derivative.exercise_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

F4 · derivative.expiration_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

SEC source: 0000091142-26-000050 · wk-form4_1771356001.xml · nonDerivative · entry 2

Otchere Benjamin A · CIK 0001895331 · Vice President and Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,148

F3 · shares: Shares withheld by A. O. Smith Corporation to satisfy tax withholding requirements on vesting of restricted stock units.

SEC source: 0000091142-26-000050 · wk-form4_1771356001.xml · nonDerivative · entry 1

Otchere Benjamin A · CIK 0001895331 · Vice President and Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,693

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 · shares: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F2 · balance_after: Mr. Otchere is a participant in the A. O. Smith Dividend Reinvestment Plan ('Plan") and receives a quarterly dividend pursuant to the Plan. The total amount of dividends received was 26 shares of Common Stock.

SEC source: 0000091142-26-000052 · wk-form4_1771356146.xml · derivative · entry 1

Qiu Jack · CIK 0001828497 · SVP - Pres. A. O. Smith China

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,275 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: The restricted stock unit is the economic equivalent of one share of A. O. Smith Corporation Common Stock.

F2 · derivative.exercise_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in cash on the vesting date of 02/13/2026.

F2 · derivative.expiration_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in cash on the vesting date of 02/13/2026.

SEC source: 0000091142-26-000048 · wk-form4_1771355804.xml · derivative · entry 4

O'Brien Stephen D. · CIK 0001920307 · SVP; Pres & General Mngr NAWH

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,905 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 represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F5 · derivative.exercise_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

F5 · derivative.expiration_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

SEC source: 0000091142-26-000048 · wk-form4_1771355804.xml · nonDerivative · entry 3

O'Brien Stephen D. · CIK 0001920307 · SVP; Pres & General Mngr NAWH

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,510

F4 · shares: Represents vesting of performance stock units at [100%] of the target award amount and conversion to shares of A. O. Smith Corporation's Common Stock upon achievement of performance criteria for the 2023 - 2025 performance period.

SEC source: 0000091142-26-000048 · wk-form4_1771355804.xml · nonDerivative · entry 2

O'Brien Stephen D. · CIK 0001920307 · SVP; Pres & General Mngr NAWH

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,719

F3 · shares: Shares withheld by A. O. Smith Corporation to satisfy tax withholding requirements on vesting of restricted stock units.

SEC source: 0000091142-26-000048 · wk-form4_1771355804.xml · nonDerivative · entry 1

O'Brien Stephen D. · CIK 0001920307 · SVP; Pres & General Mngr NAWH

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,863

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 · shares: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F2 · balance_after: Mr. O'Brien is a participant in the A. O. Smith Dividend Reinvestment Plan ('Plan") and receives a quarterly dividend pursuant to the Plan. The total amount of dividends received was 59 shares of Common Stock.

SEC source: 0000091142-26-000046 · wk-form4_1771355559.xml · derivative · entry 1

Kulkarni Parag · CIK 0001944750 · SVP - Int'l; President India

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,605

Underlying: Common Stock · 1,115 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 is the economic equivalent of one share of A. O. Smith Corporation Common Stock. This transaction represents the settlement of restricted stock units in cash on their scheduled vesting date.

F2 · derivative.exercise_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in cash on the vesting date of 02/13/2026. Mr. Kulkarni has deferred the receipt of these cash-based restricted stock units.

F2 · derivative.expiration_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in cash on the vesting date of 02/13/2026. Mr. Kulkarni has deferred the receipt of these cash-based restricted stock units.

F3 · balance_after: Mr. Kulkarni owns 3,360 restricted stock units that have not yet vested. He also owns 4,245 restricted stock units that have vested and have been deferred.

SEC source: 0000091142-26-000044 · wk-form4_1771355397.xml · derivative · entry 4

Lauber Charles T · CIK 0001566398 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,460 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 represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F4 · derivative.exercise_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

F4 · derivative.expiration_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

SEC source: 0000091142-26-000044 · wk-form4_1771355397.xml · nonDerivative · entry 3

Lauber Charles T · CIK 0001566398 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,119

F3 · shares: Represents vesting of performance stock units at 150% of the target award amount and conversion to shares of A. O. Smith Corporation's Common Stock upon achievement of performance criteria for the 2023 - 2025 performance period.

SEC source: 0000091142-26-000044 · wk-form4_1771355397.xml · nonDerivative · entry 2

Lauber Charles T · CIK 0001566398 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,865

F2 · shares: Shares withheld by A. O. Smith Corporation to satisfy tax withholding requirements on vesting of restricted stock units.

SEC source: 0000091142-26-000044 · wk-form4_1771355397.xml · nonDerivative · entry 1

Lauber Charles T · CIK 0001566398 · EVP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,312

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 · shares: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

SEC source: 0000091142-26-000040 · wk-form4_1771354866.xml · derivative · entry 4

Carver Samuel M. · CIK 0001854336 · SVP - Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,605 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 represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F4 · derivative.exercise_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

F4 · derivative.expiration_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

SEC source: 0000091142-26-000040 · wk-form4_1771354866.xml · nonDerivative · entry 3

Carver Samuel M. · CIK 0001854336 · SVP - Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,857

F3 · shares: Represents vesting of performance stock units at 150% of the target award amount and conversion to shares of A. O. Smith Corporation's Common Stock upon achievement of performance criteria for the 2023 - 2025 performance period.

SEC source: 0000091142-26-000040 · wk-form4_1771354866.xml · nonDerivative · entry 2

Carver Samuel M. · CIK 0001854336 · SVP - Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,148

F2 · shares: Shares withheld by A. O. Smith Corporation to satisfy tax withholding requirements on vesting of restricted stock units.

SEC source: 0000091142-26-000040 · wk-form4_1771354866.xml · nonDerivative · entry 1

Carver Samuel M. · CIK 0001854336 · SVP - Global Operations

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,174

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 represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

SEC source: 0000091142-26-000042 · wk-form4_1771355102.xml · derivative · entry 4

Karge Douglas Samuel · CIK 0001750276 · SVP - President NA Water Treat

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,415 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 represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F5 · derivative.exercise_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

F5 · derivative.expiration_date: The restricted stock units were granted on 02/13/2023 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units became payable in Common Stock on the vesting date of 02/13/2026.

SEC source: 0000091142-26-000042 · wk-form4_1771355102.xml · nonDerivative · entry 3

Karge Douglas Samuel · CIK 0001750276 · SVP - President NA Water Treat

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,890

F4 · shares: Represents vesting of performance stock units at 150% of the target award amount and conversion to shares of A. O. Smith Corporation's Common Stock upon achievement of performance criteria for the 2023 - 2025 performance period.

SEC source: 0000091142-26-000042 · wk-form4_1771355102.xml · nonDerivative · entry 2

Karge Douglas Samuel · CIK 0001750276 · SVP - President NA Water Treat

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,552

F3 · shares: Shares withheld by A. O. Smith Corporation to satisfy tax withholding requirements on vesting of restricted stock units.

SEC source: 0000091142-26-000042 · wk-form4_1771355102.xml · nonDerivative · entry 1

Karge Douglas Samuel · CIK 0001750276 · SVP - President NA Water Treat

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,218

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 represents the right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of restricted stock units in shares of Common Stock on their scheduled vesting date.

F2 · balance_after: Mr. Karge is a participant in the A. O. Smith Dividend Reinvestment Plan ('Plan") and receives a quarterly dividend pursuant to the Plan. The total amount of dividends received was 54 shares of Common Stock.

SEC source: 0000091142-26-000064 · wk-form4a_1772655255.xml · nonDerivative · entry 1

Schuh Darrell W. · CIK 0002016343 · SVP; President & GM Lochinvar

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,295

F1 · shares: Shares withheld by A. O. Smith Corporation to satisfy tax withholding requirements on vesting of restricted stock units.

SEC source: 0000091142-26-000038 · wk-form4_1770848906.xml · derivative · entry 1

Wheeler Kevin J. · CIK 0001566416 · Director · Executive Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 131,265

Underlying: Common Stock · 18,965 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock.

F2 · derivative.exercise_date: The restricted stock units were granted on 02/09/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/09/2029.

F2 · derivative.expiration_date: The restricted stock units were granted on 02/09/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/09/2029.

SEC source: 0000091142-26-000036 · wk-form4_1770848839.xml · derivative · entry 1

STERN JAMES F · CIK 0001399737 · Exec VP, Corp Dev, Strat & Sec

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,365

Underlying: Common Stock · 7,015 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock.

F2 · derivative.exercise_date: The restricted stock units were granted on 02/09/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/09/2029.

F2 · derivative.expiration_date: The restricted stock units were granted on 02/09/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/09/2029.

SEC source: 0000091142-26-000034 · wk-form4_1770848769.xml · derivative · entry 1

Shafer Stephen M · CIK 0001771264 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,195

Underlying: Common Stock · 33,505 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock.

F2 · derivative.exercise_date: The restricted stock units were granted on 02/09/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/09/2029.

F2 · derivative.expiration_date: The restricted stock units were granted on 02/09/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/09/2029.

SEC source: 0000091142-26-000032 · wk-form4_1770847085.xml · derivative · entry 1

Selby Curtis E · CIK 0002031178 · Senior VP - H.R. & P.A.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,705

Underlying: Common Stock · 4,740 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock.

F2 · derivative.exercise_date: The restricted stock units were granted on 02/09/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/09/2029.

F2 · derivative.expiration_date: The restricted stock units were granted on 02/09/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/09/2029.

SEC source: 0000091142-26-000030 · wk-form4_1770847034.xml · derivative · entry 1

Schuh Darrell W. · CIK 0002016343 · SVP; President & GM Lochinvar

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,085

Underlying: Common Stock · 1,560 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents the right to receive, at settlement, one share of Common Stock.

F2 · derivative.exercise_date: The restricted stock units were granted on 02/09/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/09/2029.

F2 · derivative.expiration_date: The restricted stock units were granted on 02/09/2026 under the A. O. Smith Combined Incentive Compensation Plan, a transaction exempt under Rule 16b-3. The restricted stock units become payable in Common Stock on the vesting date of 02/09/2029.