SEC FORM 3SEC Form 3
FORM 3UNITED 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*
Haglund Brian James

(Last)(First)(Middle)
4201 WOODLAND ROAD, POST OFFICE BOX 69

(Street)
CIRCLE PINESMN55014

(City)(State)(Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
09/04/2026
3. Issuer Name and Ticker or Trading Symbol
NORTHERN TECHNOLOGIES INTERNATIONAL CORP [ NTIC ]
Foreign Trading Symbol
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
checkbox checkedOfficer (give title below)Other (specify below)
Chief Operating Officer
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
checkbox checkedForm 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)
Common Stock1,589.26D
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 ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (right to buy) (1)08/31/2030Common Stock21,3708.24D
Stock Option (right to buy) (1)08/31/2031Common Stock7,75316.97D
Stock Option (right to buy) (1)08/31/2032Common Stock17,68411.38D
Stock Option (right to buy) (1)08/31/2033Common Stock18,38313.25D
Stock Option (right to buy) (2)08/31/2034Common Stock19,98813.26D
Stock Option (right to buy) (3)08/31/2035Common Stock21,0277.42D
Stock Option (right to buy) (4)08/31/2036Common Stock21,1378.08D
Explanation of Responses:
1. This option has fully vested.
2. This option has vested with respect to 13,324 shares and will vest with respect to the remaining shares on September 1, 2027.
3. This option has vested with respect to 7,009 shares and will vest with respect to 7,009 shares on each of September 1, 2027 and September 1, 2028.
4. This option vests with respect to 7,045 shares on September 1, 2027 and with respect to 7,046 shares on each of September 1, 2028 and September 1, 2029.
/s/ Matthew C. Wolsfeld-Attorney-in-fact09/09/2026
** Signature of Reporting PersonDate
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.
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