SEC FORM 3 SEC Form 3
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person*
Calderon Nancy E.

(Last) (First) (Middle)
4201 WOODLAND ROAD
PO BOX 69

(Street)
CIRCLE PINES MN 55014

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
10/22/2019
3. Issuer Name and Ticker or Trading Symbol
NORTHERN TECHNOLOGIES INTERNATIONAL CORP [ NTIC ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
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 Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
No securities are beneficially owned.
/s/Matthew C. Wolsfeld 10/23/2019
** Signature of Reporting Person Date
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 5 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
POWER OF ATTORNEY
NANCY E. CALDERON

With respect to holdings and transactions in securities
issued by Northern Technologies International
Corporation (the Company), the undersigned hereby 
constitutes and appoints the officers of the Company
listed on Schedule A attached hereto and as may be
amended from time to time, or any of them signing
singly, with full power of substitution and 
resubstitution, to act as the undersigned's true 
and lawful attorney-in-fact to:

1.	execute for and on behalf of the undersigned,
Forms 3, 4 and 5 in accordance with Section 16 of the 
Securities Exchange Act of 1934, as amended, and any 
Form 144 in accordance with Rule 144 under the 
Securities Act of 1933, as amended, and the rules and 
regulations thereunder;

3. 	do and perform any and all acts for and on
behalf of the undersigned which may be necessary
or desirable to complete and execute any such 
Form 3, 4 or 5 or Form 144 or complete and execute 
any amendment or amendments thereto, and timely file 
such forms with the United States Securities and
Exchange Commission (the SEC) and any stock 
exchange or similar authority; and 

4. 	take any other action of any type
whatsoever in connection with the foregoing which,
in the opinion of such attorney-in-fact,
 may be
of benefit to, in the best interest of, or legally
required by, the undersigned, it being understood
that the documents executed by such attorney-in-fact
on behalf of the undersigned pursuant to this Power
of Attorney shall be in such form and shall contain
such terms and conditions as such attorney-in-fact
may approve in the discretion of such attorney-in-
fact.

The undersigned hereby grants to each such attorney-
in-fact full power and authority to do and perform 
any and every act and thing whatsoever requisite, 
necessary, or proper to be done in the exercise of 
any of the rights and powers herein granted, as fully 
to all intents and purposes as the undersigned might 
or could do if personally present, with full power of 
substitution or revocation, hereby ratifying and 
confirming all that such attorney-in-fact, or such 
attorney-in-fact's substitute or substitutes, shall 
lawfully do or cause to be done by virtue of this 
Power of Attorney and the rights and powers herein 
granted.  

The undersigned hereby acknowledges that the 
attorneys-in-fact, in serving in such capacity at the 
request of the undersigned, are not assuming, nor is 
the Company assuming, any of the undersigned's 
responsibilities to comply with Section 16 of the 
Securities Exchange Act of 1934, as amended, or 
Rule 144 of the Securities Act of 1933, as amended, 
and any similar law, rule or regulation.

This Power of Attorney shall remain in full force 
and effect until the undersigned is no longer 
required to file Forms 3, 4 and 5 and Forms 144 with 
respect to the undersigned's holdings of and 
transactions in securities issued by the Company, 
unless earlier revoked by the undersigned in a signed 
writing delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused
this Power of Attorney to be executed as of this
22nd day of October, 2019. 

/s/ Nancy E. Calderon
Nancy E. Calderon


Schedule A

Individuals Appointed as Attorney-in-Fact with 
Full Power of Substitution and Resubstitution

1.  G. Patrick Lynch, President and Chief Executive
Officer 

2.  Matthew C. Wolsfeld, Chief Financial Officer
and Secretary