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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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 *

Robbins Paige K
2. Issuer Name and Ticker or Trading Symbol

W.W. GRAINGER, INC. [ GWW ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Sr. VP
(Last)          (First)          (Middle)

100 GRAINGER PARKWAY
3. Date of Earliest Transaction (MM/DD/YYYY)

5/28/2020
(Street)

LAKE FOREST, IL 60045
(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 5/28/2020  M(1)  3840 A$149.02 15033 D  
Common Stock 5/28/2020  S(1)  438 D$309.2361 (2)14595 D  
Common Stock 5/28/2020  S(1)  200 D$310.66 (3)14395 D  
Common Stock 5/28/2020  S(1)  700 D$312.0771 (4)13695 D  
Common Stock 5/28/2020  S(1)  1802 D$313.1373 (5)11893 D  
Common Stock 5/28/2020  S(1)  500 D$314.358 (6)11393 D  
Common Stock 5/28/2020  S(1)  200 D$315.69 11193 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 Security3. Trans. Date3A. Deemed Execution Date, if any4. 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 Date7. 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option $149.02 5/28/2020  M (1)    3840  4/27/2014 4/26/2021 Common Stock 3840 $0.00 0 D  
Stock Option $204.01           4/25/2015 4/24/2022 Common Stock 2790  2790 D  
Stock Option $245.86           4/24/2016 4/23/2023 Common Stock 2330  2330 D  
Stock Option $248.22           4/30/2017 4/29/2024 Common Stock 2127  2127 D  
Stock Option $231.88           4/1/2018 3/31/2025 Common Stock 3122  3122 D  
Stock Option $234.38           4/1/2019 3/31/2026 Common Stock 3813  3813 D  
Stock Option $231.20           4/3/2020 4/2/2027 Common Stock 2814  2814 D  
Stock Option $276.64           4/2/2021 4/1/2028 Common Stock 3904  3904 D  
Stock Option $311.26            (7)3/31/2029 Common Stock 2859  2859 D  

Explanation of Responses:
(1) Transaction pursuant to a previously adopted Rule 10b5-1 trading program.
(2) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $308.91 to $309.79, inclusive. The reporting person undertakes to provide W.W. Grainger, Inc., any security holder of W.W. Grainger, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2), (3), (4), (5), and (6) to this Form 4.
(3) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $310.55 to $310.77, inclusive.
(4) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $311.69 to $312.66, inclusive.
(5) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $312.70 to $313.52, inclusive.
(6) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $313.94 to $314.59, inclusive.
(7) The stock option will fully vest in three years, where 1/3 shall vest on April 1, 2020, 1/3 shall vest on April 1, 2021, and the remainder shall vest on April 1, 2022.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Robbins Paige K
100 GRAINGER PARKWAY
LAKE FOREST, IL 60045


Sr. VP

Signatures
Hugo Dubovoy, Jr., as attorney-in-fact5/29/2020
**Signature of Reporting PersonDate

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