Matthew C. Wolsfeld - 01 Sep 2025 Form 4 Insider Report for NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC)

Role
CFO and Corporate Secretary
Signature
/s/ Matthew C. Wolsfeld-Attorney-in-fact
Issuer symbol
NTIC
Transactions as of
01 Sep 2025
Net transactions value
$0
Form type
4
Filing time
03 Sep 2025, 19:10:50 UTC
Previous filing
04 Sep 2024
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
WOLSFELD MATTHEW C CFO and Corporate Secretary C/O NORTHERN TECHNOLOGIES INT'L CORP., 4201 WOODLAND ROAD, PO BOX 69, CIRCLE PINES /s/ Matthew C. Wolsfeld-Attorney-in-fact 03 Sep 2025 0001258563

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding NTIC Common Stock 168,256 01 Sep 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction NTIC Stock Option (right to buy) Award $0 +32,559 $0.000000 32,559 01 Sep 2025 Common Stock 32,559 $7.42 Direct F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Includes 80 shares that were purchased under the Northern Technologies International Employee Stock Purchase Plan.
F2 This option vests with respect to 10,853 shares on each of September 1, 2026, September 1, 2027, and September 1, 2028.