ECL

SEC source: 0001104659-22-091271 · tm2223422-1_4seq1.xml · nonDerivative · entry 1

GATES WILLIAM H III · CIK 0000902012 · 10% owner

CASCADE INVESTMENT, L.L.C. · CIK 0001052192 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · by Casacde Investment, L.L.C.

Disclosed balance after: 30,814,574

F1 · price: This transaction was executed in multiple trades at prices ranging from $170.8500 to $171.8400. The price set forth above reflects the weighted-average price per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

SEC source: 0001415889-22-008334 · form4-08052022_020820.xml · derivative · entry 1

Minnix Lanesha · CIK 0001708662 · EVP, GC & SECRETARY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,072

Underlying: Common Stock · 8,072 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ecolab Inc. common stock. The units will vest, subject to continued employment, as to one-third of the units (excluding any fractional portion less than one unit), on each of the first and second anniversaries of the date of grant and as to the remaining units on the third anniversary of the date of grant.

F1 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of Ecolab Inc. common stock. The units will vest, subject to continued employment, as to one-third of the units (excluding any fractional portion less than one unit), on each of the first and second anniversaries of the date of grant and as to the remaining units on the third anniversary of the date of grant.

F1 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of Ecolab Inc. common stock. The units will vest, subject to continued employment, as to one-third of the units (excluding any fractional portion less than one unit), on each of the first and second anniversaries of the date of grant and as to the remaining units on the third anniversary of the date of grant.

SEC source: 0001415889-22-008332 · form4-08052022_020841.xml · derivative · entry 2

Marsh Laurie M · CIK 0001479289 · EVP - HUMAN RESOURCES

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,915

Underlying: Common Stock · 12,915 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ecolab Inc. common stock. The units will vest, subject to continued employment, as to one-third of the units (excluding any fractional portion less than one unit), on each of the first and second anniversaries of the date of grant and as to the remaining units on the third anniversary of the date of grant.

F2 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of Ecolab Inc. common stock. The units will vest, subject to continued employment, as to one-third of the units (excluding any fractional portion less than one unit), on each of the first and second anniversaries of the date of grant and as to the remaining units on the third anniversary of the date of grant.

F2 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of Ecolab Inc. common stock. The units will vest, subject to continued employment, as to one-third of the units (excluding any fractional portion less than one unit), on each of the first and second anniversaries of the date of grant and as to the remaining units on the third anniversary of the date of grant.

SEC source: 0001415889-22-008329 · form4-08052022_020809.xml · derivative · entry 2

Bradway Jennifer J · CIK 0001902394 · SVP & CORPORATE CONTROLLER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,457

Underlying: Common Stock · 6,457 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Ecolab Inc. common stock. The units will vest, subject to continued employment, as to 100% of the grant amount on the fourth anniversary of the date of grant.

F2 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of Ecolab Inc. common stock. The units will vest, subject to continued employment, as to 100% of the grant amount on the fourth anniversary of the date of grant.

F2 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of Ecolab Inc. common stock. The units will vest, subject to continued employment, as to 100% of the grant amount on the fourth anniversary of the date of grant.

SEC source: 0001415889-22-008193 · form4-08032022_010834.xml · derivative · entry 3

HIGGINS ARTHUR J · CIK 0001142083 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,200 shares

Expires 2023-05-02

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_date: The option became exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant.

SEC source: 0001415889-22-008193 · form4-08032022_010834.xml · nonDerivative · entry 2

HIGGINS ARTHUR J · CIK 0001142083 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,530.45

SEC source: 0001415889-22-008193 · form4-08032022_010834.xml · nonDerivative · entry 1

HIGGINS ARTHUR J · CIK 0001142083 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,730.45

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.

SEC source: 0001415889-22-007357 · form4-07052022_010758.xml · nonDerivative · entry 2

HIGGINS ARTHUR J · CIK 0001142083 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,530.45

F1 · balance_after: Includes 61.78 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

SEC source: 0001415889-22-007357 · form4-07052022_010758.xml · nonDerivative · entry 1

HIGGINS ARTHUR J · CIK 0001142083 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,271.8

SEC source: 0001415889-22-007370 · form4-07052022_010741.xml · nonDerivative · entry 1

NOWELL LIONEL L III · CIK 0001180436 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,067.1

F1 · balance_after: Includes 10.46 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

SEC source: 0001415889-22-007378 · form4-07052022_020723.xml · nonDerivative · entry 1

ZILLMER JOHN J · CIK 0001188262 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,966.65

F1 · balance_after: Includes 36.54 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

SEC source: 0001415889-22-007376 · form4-07052022_020751.xml · nonDerivative · entry 1

Vautrinot Suzanne M · CIK 0001589791 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,238.93

F1 · balance_after: Includes 16.61 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

SEC source: 0001415889-22-007373 · form4-07052022_020743.xml · nonDerivative · entry 1

REICH VICTORIA · CIK 0001217635 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,054.1

F1 · balance_after: Includes 58.63 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

SEC source: 0001415889-22-007367 · form4-07052022_010727.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,965.09

F1 · balance_after: Includes 14.49 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

SEC source: 0001415889-22-007364 · form4-07052022_010702.xml · nonDerivative · entry 1

MacLennan David · CIK 0001498535 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,568.44

F1 · balance_after: Includes 12.42 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

SEC source: 0001415889-22-007361 · form4-07052022_010733.xml · nonDerivative · entry 1

LARSON MICHAEL · CIK 0001098825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,859.72

F1 · balance_after: Includes 21.44 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

SEC source: 0001415889-22-007352 · form4-07052022_010759.xml · nonDerivative · entry 1

ETTINGER JEFFREY M · CIK 0001192933 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,362.34

F1 · balance_after: Includes 21.50 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

SEC source: 0001415889-22-007346 · form4-07052022_010753.xml · nonDerivative · entry 2

Ballard Shari L · CIK 0001311220 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,452.65

F1 · balance_after: Includes 10.46 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

SEC source: 0001415889-22-007346 · form4-07052022_010753.xml · nonDerivative · entry 1

Ballard Shari L · CIK 0001311220 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,239.01

SEC source: 0001415889-22-007350 · form4-07052022_010714.xml · nonDerivative · entry 2

BECK BARBARA · CIK 0001184925 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,470.36

F1 · balance_after: Includes 81.29 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.

SEC source: 0001415889-22-007350 · form4-07052022_010714.xml · nonDerivative · entry 1

BECK BARBARA · CIK 0001184925 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,159.39

SEC source: 0001415889-22-006375 · form4-06092022_010618.xml · nonDerivative · entry 1

McCormick Michael C. · CIK 0001699917 · EVP, GC & SECRETARY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,060.162

SEC source: 0001415889-22-004740 · form4-05062022_020531.xml · derivative · entry 2

ZILLMER JOHN J · CIK 0001188262 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,399

Underlying: Common Stock · 1,399 shares

Expires 2032-05-05

F1 · derivative.exercise_date: The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

SEC source: 0001415889-22-004735 · form4-05062022_010512.xml · derivative · entry 2

Vautrinot Suzanne M · CIK 0001589791 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,399

Underlying: Common Stock · 1,399 shares

Expires 2032-05-05

F1 · derivative.exercise_date: The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

SEC source: 0001415889-22-004731 · form4-05062022_010503.xml · derivative · entry 2

REICH VICTORIA · CIK 0001217635 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,399

Underlying: Common Stock · 1,399 shares

Expires 2032-05-05

F1 · derivative.exercise_date: The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

SEC source: 0001415889-22-004722 · form4-05062022_010524.xml · derivative · entry 2

NOWELL LIONEL L III · CIK 0001180436 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,399

Underlying: Common Stock · 1,399 shares

Expires 2032-05-05

F1 · derivative.exercise_date: The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

SEC source: 0001415889-22-004720 · form4-05062022_010510.xml · derivative · entry 2

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,399

Underlying: Common Stock · 1,399 shares

Expires 2032-05-05

F1 · derivative.exercise_date: The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

SEC source: 0001415889-22-004718 · form4-05062022_010521.xml · derivative · entry 4

MacLennan David · CIK 0001498535 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,399

Underlying: Common Stock · 1,399 shares

Expires 2032-05-05

F1 · derivative.exercise_date: The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

SEC source: 0001415889-22-004718 · form4-05062022_010521.xml · nonDerivative · entry 1

MacLennan David · CIK 0001498535 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,350.95

SEC source: 0001415889-22-004716 · form4-05062022_010520.xml · derivative · entry 2

LARSON MICHAEL · CIK 0001098825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,399

Underlying: Common Stock · 1,399 shares

Expires 2032-05-05

F1 · derivative.exercise_date: The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

SEC source: 0001415889-22-004714 · form4-05062022_010516.xml · derivative · entry 2

HIGGINS ARTHUR J · CIK 0001142083 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,399

Underlying: Common Stock · 1,399 shares

Expires 2032-05-05

F1 · derivative.exercise_date: The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

SEC source: 0001415889-22-004712 · form4-05062022_010546.xml · derivative · entry 2

ETTINGER JEFFREY M · CIK 0001192933 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,399

Underlying: Common Stock · 1,399 shares

Expires 2032-05-05

F1 · derivative.exercise_date: The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

SEC source: 0001415889-22-004710 · form4-05062022_010555.xml · derivative · entry 2

BECK BARBARA · CIK 0001184925 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,399

Underlying: Common Stock · 1,399 shares

Expires 2032-05-05

F1 · derivative.exercise_date: The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

SEC source: 0001415889-22-004707 · form4-05062022_010505.xml · derivative · entry 2

Ballard Shari L · CIK 0001311220 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,399

Underlying: Common Stock · 1,399 shares

Expires 2032-05-05

F1 · derivative.exercise_date: The option will become exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant; provided, however, that if a Change in Control of the Company (as that term is defined in the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan) will occur, then the option will become immediately exercisable in full.

SEC source: 0001415889-22-004638 · form4-05042022_040557.xml · derivative · entry 6

Brown Darrell R · CIK 0001727287 · EVP & PRES - GLOBAL INDUSTRIAL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,800 shares

Expires 2022-05-03

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 · derivative.exercise_price: On May 3, 2017, the reporting person was granted 2,800 restricted stock units vesting as to 100% of the units on the fifth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

F3 · derivative.exercise_date: On May 3, 2017, the reporting person was granted 2,800 restricted stock units vesting as to 100% of the units on the fifth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

F3 · derivative.expiration_date: On May 3, 2017, the reporting person was granted 2,800 restricted stock units vesting as to 100% of the units on the fifth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

SEC source: 0001415889-22-004638 · form4-05042022_040557.xml · nonDerivative · entry 4

Brown Darrell R · CIK 0001727287 · EVP & PRES - GLOBAL INDUSTRIAL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,866

F2 · kind: Reflects the reporting person's payment of minimum statutory tax obligations by withholding shares of Ecolab Common Stock incident to the vesting of restricted stock units in accordance with Rule 16b-3.

SEC source: 0001415889-22-004638 · form4-05042022_040557.xml · nonDerivative · entry 3

Brown Darrell R · CIK 0001727287 · EVP & PRES - GLOBAL INDUSTRIAL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,107

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 May 3, 2017, the reporting person was granted 2,800 restricted stock units vesting as to 100% of the units on the fifth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

SEC source: 0001415889-22-004645 · form4-05042022_040500.xml · derivative · entry 4

Mulhere Timothy P · CIK 0001540754 · EVP & PRES - GLOBAL INST

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,400 shares

Expires 2022-05-02

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: On May 2, 2018, the reporting person was granted 14,400 restricted stock units vesting as to 100% of the units on the fourth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

F1 · derivative.exercise_date: On May 2, 2018, the reporting person was granted 14,400 restricted stock units vesting as to 100% of the units on the fourth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

F1 · derivative.expiration_date: On May 2, 2018, the reporting person was granted 14,400 restricted stock units vesting as to 100% of the units on the fourth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

SEC source: 0001415889-22-004645 · form4-05042022_040500.xml · nonDerivative · entry 2

Mulhere Timothy P · CIK 0001540754 · EVP & PRES - GLOBAL INST

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,640.393

F2 · kind: Reflects the reporting person's payment of minimum statutory tax obligations by withholding shares of Ecolab Common Stock incident to the vesting of restricted stock units in accordance with Rule 16b-3.

SEC source: 0001415889-22-004645 · form4-05042022_040500.xml · nonDerivative · entry 1

Mulhere Timothy P · CIK 0001540754 · EVP & PRES - GLOBAL INST

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,307.393

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: On May 2, 2018, the reporting person was granted 14,400 restricted stock units vesting as to 100% of the units on the fourth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

SEC source: 0001415889-22-004638 · form4-05042022_040557.xml · derivative · entry 5

Brown Darrell R · CIK 0001727287 · EVP & PRES - GLOBAL INDUSTRIAL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 14,400 shares

Expires 2022-05-02

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: On May 2, 2018, the reporting person was granted 14,400 restricted stock units vesting as to 100% of the units on the fourth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

F1 · derivative.exercise_date: On May 2, 2018, the reporting person was granted 14,400 restricted stock units vesting as to 100% of the units on the fourth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

F1 · derivative.expiration_date: On May 2, 2018, the reporting person was granted 14,400 restricted stock units vesting as to 100% of the units on the fourth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

SEC source: 0001415889-22-004638 · form4-05042022_040557.xml · nonDerivative · entry 2

Brown Darrell R · CIK 0001727287 · EVP & PRES - GLOBAL INDUSTRIAL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,307

F2 · kind: Reflects the reporting person's payment of minimum statutory tax obligations by withholding shares of Ecolab Common Stock incident to the vesting of restricted stock units in accordance with Rule 16b-3.

SEC source: 0001415889-22-004638 · form4-05042022_040557.xml · nonDerivative · entry 1

Brown Darrell R · CIK 0001727287 · EVP & PRES - GLOBAL INDUSTRIAL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,574

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: On May 2, 2018, the reporting person was granted 14,400 restricted stock units vesting as to 100% of the units on the fourth anniversary of the date of grant, subject to continued employment. The restricted stock units converted into common stock on a one-for-one basis.

SEC source: 0001415889-22-004540 · form4-05032022_010551.xml · nonDerivative · entry 1

McKibben Tracy B · CIK 0001584119 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,745.53

SEC source: 0001415889-22-004372 · form4-04292022_010419.xml · nonDerivative · entry 1

Berger Larry L · CIK 0001433832 · EVP & CHIEF TECHNICAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,228

F1 · price: This transaction was executed in multiple trades at prices ranging from $174.140 to $175.040, inclusive. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001415889-22-004232 · form4-04222022_020440.xml · derivative · entry 6

LARSON MICHAEL · CIK 0001098825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,800 shares

Expires 2022-05-03

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.

F2 · derivative.exercise_date: The option became exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant. The date listed in the "Date Exercisable" column represents the first vesting date.

SEC source: 0001415889-22-004232 · form4-04222022_020440.xml · derivative · entry 5

LARSON MICHAEL · CIK 0001098825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 700 shares

Expires 2022-05-03

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.

F2 · derivative.exercise_date: The option became exercisable, on a cumulative basis, as to 25% of the option shares (excluding any fractional portion less than one share), on the last day of each of the first, second and third three-month periods following its date of grant and as to the remaining shares on the last day of the fourth three-month period following its date of grant. The date listed in the "Date Exercisable" column represents the first vesting date.

SEC source: 0001415889-22-004232 · form4-04222022_020440.xml · nonDerivative · entry 4

LARSON MICHAEL · CIK 0001098825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,633.21

F1 · kind: Reflects the reporting person's payment of the exercise price for a stock option issued in accordance with Rule 16b-3 by delivering or withholding shares of Ecolab common stock.

SEC source: 0001415889-22-004232 · form4-04222022_020440.xml · nonDerivative · entry 3

LARSON MICHAEL · CIK 0001098825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,966.21

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.

SEC source: 0001415889-22-004232 · form4-04222022_020440.xml · nonDerivative · entry 2

LARSON MICHAEL · CIK 0001098825 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,166.21

F1 · kind: Reflects the reporting person's payment of the exercise price for a stock option issued in accordance with Rule 16b-3 by delivering or withholding shares of Ecolab common stock.