Other3

NORTHERN TECHNOLOGIES INTERNATIONAL CORP

Total Value

$NaN

Filing Date

Sep 9, 2026

1 transactions

Trade Summary

On Sep 4, 2026, Haglund Brian James, Chief Operating Officer, reported $NaN of NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) across 1 transactions. The filing covers company securities and reflects balanced net activity of $NaN. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Insider Information

Name: Haglund Brian James
Role: Chief Operating Officer
Location: CIRCLE PINES, MN

Filing Details

Filing Date: Sep 9, 2026
Transaction Date: Sep 4, 2026
Accession Number: 0002153488-26-000001
Form Type: 3

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Footnotes

(F1)This option has fully vested.
(F2)This option has vested with respect to 13,324 shares and will vest with respect to the remaining shares on September 1, 2027.
(F3)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.
(F4)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.

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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Haglund Brian James

(Last)

(First)

(Middle)

4201 WOODLAND ROAD, POST OFFICE BOX 69

(Street)

CIRCLE PINES

55014

(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 ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (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)

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)
Common Stock	1,589.26	D

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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	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)
Stock Option (right to buy)	⁽¹⁾	08/31/2030	Common Stock	21,370	$8.24	D
Stock Option (right to buy)	⁽¹⁾	08/31/2031	Common Stock	7,753	$16.97	D
Stock Option (right to buy)	⁽¹⁾	08/31/2032	Common Stock	17,684	$11.38	D
Stock Option (right to buy)	⁽¹⁾	08/31/2033	Common Stock	18,383	$13.25	D
Stock Option (right to buy)	⁽²⁾	08/31/2034	Common Stock	19,988	$13.26	D
Stock Option (right to buy)	⁽³⁾	08/31/2035	Common Stock	21,027	$7.42	D
Stock Option (right to buy)	⁽⁴⁾	08/31/2036	Common Stock	21,137	$8.08	D

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-fact	09/09/2026
	** 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.

Form 3 as rendered by the SEC from accession 0002153488-26-000001.

NORTHERN TECHNOLOGIES INTERNATIONAL CORP

Trade Summary

Company Information

Insider Information

Filing Details

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Footnotes

SEC Form 3

SEC Filing

SEC Form 3