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 * WIENS HAROLD J 2. Issuer Name and Ticker or Trading Symbol BIO-TECHNE Corp [ TECH ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable)__X__ Director                    _____ 10% Owner
_____ Officer (give title below)    _____ Other (specify below)
(Last)         (First)         (Middle)
614 MCKINLEY PLACE NE
3. Date of Earliest Transaction (MM/DD/YYYY)
5/22/2020
(Street)
MINNEAPOLIS, MN 55413
(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  5/22/2020    G    378.00 (1) D $0.00  4843.00  D   
Common Stock  5/29/2020    M    3985.00  A $101.19  8828.00  D   
Common Stock  5/29/2020    S    3985.00  D $260.00  4843.00  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
Stock Option (Right to Buy)  $101.19  5/29/2020    M        3985.00   10/26/2017  10/27/2026  Common Stock  3985.00  $0.00  0.00  D   
Stock Option (right to buy)  $201.64                   (2) 10/24/2029  Common Stock  2011.00    2011.00  D   
Stock Option (right to buy)  $179.84                  10/24/2019  10/25/2028  Common Stock  1898.00    1898.00  D   
Stock Option (right to buy)  $125.05                  10/25/2018  10/26/2027  Common Stock  3125.00    3125.00  D   
Stock Option (Right to Buy)  $87.34                  10/29/2016  10/28/2025  Common Stock  4260.00    4260.00  D   
Stock Options (Right to buy)  $125.05                  10/25/2018  10/26/2027  Common Stock  3125.00    3125.00  D   
Stock Options (Right to Buy)  $91.78                  10/30/2014  10/30/2024  Common Stock  4000.00    4000.00  D   
Stock Options (Right to Buy)  $87.83                  5/15/2014  5/15/2024  Common Stock  2000.00    2000.00  D   

Explanation of Responses:
(1)  Represents a transfer of shares to a charitable donor advised fund. The reporting person retained no pecuniary interest in the transferred shares.
(2)  The option vests on the earlier of the one year anniversary of the grant date (10/24/2019) or the date of Bio-Techne 2020 annual meeting of shareholders.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
WIENS HAROLD J
614 MCKINLEY PLACE NE
MINNEAPOLIS, MN 55413
X



Signatures
/s/ Brenda S. Furlow, attorney in fact for Harold J. Wiens pursuant to Power of Attorney previously filed 6/2/2020
**Signature of Reporting Person Date
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