Sec Form 4 Filing - Corkrean John J @ FULLER H B CO - 2021-02-19

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 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Corkrean John J 2. Issuer Name and Ticker or Trading Symbol FULLER H B CO [ FUL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Executive VP and CFO (Last) (First) (Middle) 1200 WILLOW LAKE BOULEVARD, P.O. BOX 64683 3. Date of Earliest Transaction (MM/DD/YY) 02/19/2021 (Street) ST. PAUL, MN55164-0683 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction 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 32,532 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 Phantom Units $ 0 ( 1 ) 02/19/2021 A 82.39 ( 2 ) ( 2 ) Common Stock 82.39 $ 57.51 6,944.54 ( 3 ) D Employee Stock Option (Right-to-Buy) $ 43.48 05/17/2017( 4 ) 05/17/2026 Common Stock 16,672 16,672 D Employee Stock Option (Right-to-Buy) $ 45.05 01/24/2020( 5 ) 01/24/2029 Common Stock 41,208 41,208 D Employee Stock Option (Right-to-Buy) $ 48.35 01/24/2021( 5 ) 01/24/2030 Common Stock 48,309 48,309 D Employee Stock Option (Right-to-Buy) $ 50.1 01/26/2018( 4 ) 01/26/2027 Common Stock 23,696 23,696 D Employee Stock Option (Right-to-Buy) $ 51.89 01/27/2022 01/27/2031 Common Stock 38,376 38,376 D Employee Stock Option (Right-to-Buy) $ 53.57 01/25/2019( 4 ) 01/25/2028 Common Stock 21,834 21,834 D Performance Stock Units $ 0 ( 6 ) 01/24/2020( 7 ) 01/24/2022 Common Stock 1,523.82 1,523.82 ( 8 ) D Restricted Stock Units $ 0 ( 9 ) 01/24/2020( 10 ) 01/24/2022 Common Stock 1,546.82 1,546.82 ( 11 ) D Restricted Stock Units $ 0 ( 9 ) 01/24/2021( 10 ) 01/24/2023 Common Stock 3,366.31 3,366.31 ( 11 ) D Restricted Stock Units $ 0 ( 9 ) 01/27/2022( 10 ) 01/27/2024 Common Stock 4,874 4,874 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Corkrean John J 1200 WILLOW LAKE BOULEVARD P.O. BOX 64683 ST. PAUL, MN55164-0683 Executive VP and CFO Signatures /s/ Debra L. Hovland, Attorney-in-Fact 02/22/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )These units (acquired after 12-31-04) convert into shares of common stock on a 1-for-1 basis. ( 2 )These units (acquired after 12-31-04) convert into shares of common stock upon the earlier of certain termination events as specified in the Key Employee DeferredCompensation Plan or such earlier date as selected by the participant, subject to holding periods required by law. ( 3 )Amount includes stock units acquired pursuant to a dividend equivalent feature. ( 4 )This option is 100% vested. ( 5 )This option vests in three equal annual installments beginning on the date shown. ( 6 )These performance stock units convert into shares of common stock on a 1-for-1 basis. ( 7 )These performance stock units vest in three equal annual installments beginning on the date shown upon H.B. Fuller achieving return on invested capital at least at the threshold level of performance in each year of the three years of vesting. ( 8 )This amount has been adjusted to reflect a decrease in number of performance stock units from the original grant based on performance criteria. Amount also includes performance stock units acquired pursuant to a dividend equivalent reinvestment feature. ( 9 )These restricted stock units convert into shares of common stock on a 1-for-1 basis. ( 10 )These restricted stock units vest in three equal annual installments beginning on the date shown. ( 11 )Amount includes restricted stock units acquired pursuant to a dividend equivalent reinvestment feature.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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