Statement of Changes in Beneficial Ownership (4)

FORM 4

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

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3235-0287

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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * Wyant Jill S	2. Issuer Name and Ticker or Trading Symbol ECOLAB INC. [ ECL ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                    _____ 10% Owner __X__ Officer (give title below)    _____ Other (specify below) EVP - Innovation & Transformat
(Last)          (First)          (Middle) 1 ECOLAB PLACE	3. Date of Earliest Transaction (MM/DD/YYYY) 9/9/2020
(Street) SAINT PAUL, MN 55102 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	9/9/2020		M		13519	A	$137.087	24827	D
Common Stock	9/9/2020		S		12619	D	$203.418 (1)	12208	D
Common Stock	9/9/2020		S		900	D	$204.096 (2)	11308	D
Common Stock	9/10/2020		M		300	A	$137.087	11608	D
Common Stock	9/10/2020		M		5429	A	$158.515	17037	D
Common Stock	9/10/2020		S		4306	D	$203.862 (3)	12731	D
Common Stock	9/10/2020		S		1423	D	$204.65 (4)	11308	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (Right to Buy)	$137.087	9/9/2020		M			13519	12/6/2018 (5)	12/6/2027	Common Stock	13519	$0	7210	D
Employee Stock Option (Right to Buy)	$137.087	9/10/2020		M			300	12/6/2018 (5)	12/6/2027	Common Stock	300	$0	6910	D
Employee Stock Option (Right to Buy)	$158.515	9/10/2020		M			5429	12/4/2019 (5)	12/4/2028	Common Stock	5429	$0	10858	D

Explanation of Responses:
(1)	This transaction was executed in multiple trades at prices ranging from $203.00 to $203.99, 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.
(2)	This transaction was executed in multiple trades at prices ranging from $204.09 to $204.10, 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.
(3)	This transaction was executed in multiple trades at prices ranging from $203.372 to $204.36, 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.
(4)	This transaction was executed in multiple trades at prices ranging from $204.48 to $204.92, 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.
(5)	The option became exercisable, on a cumulative basis, as to one third of the option shares (excluding any fractional portion less than one share) on each of the first and second anniversaries of the date of grant and as to the remaining shares on the third anniversary of the date of grant. The date listed in the "Date Exercisable" column represents the first anniversary of the date of grant.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Wyant Jill S 1 ECOLAB PLACE SAINT PAUL, MN 55102			EVP - Innovation & Transformat

Signatures
/s/ David F. Duvick, as Attorney-in-Fact for Jill S. Wyant		9/11/2020
**Signature of Reporting Person		Date