RICHARD NIGON - 24 Jul 2025 Form 4 Insider Report for NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC)

Role
Director
Signature
/s/ Matthew C. Wolsfeld-Attorney-in-fact
Issuer symbol
NTIC
Transactions as of
24 Jul 2025
Net transactions value
+$1.4
Form type
4
Filing time
28 Jul 2025, 17:26:36 UTC
Previous filing
21 May 2025
Next filing
03 Sep 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
NIGON RICHARD Director C/O NORTHERN TECHNOLOGIES INT'L CORP., 4201 WOODLAND ROAD, PO BOX 69, CIRCLE PINES /s/ Matthew C. Wolsfeld-Attorney-in-fact 28 Jul 2025 0001213869

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NTIC Common Stock Options Exercise $89,160 +12,000 +32% $7.43 49,935 24 Jul 2025 Direct
transaction NTIC Common Stock Tax liability $89,159 -10,873 -22% $8.20 39,062 24 Jul 2025 Direct

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) Options Exercise $0 -12,000 -100% $0.000000 0 24 Jul 2025 Common Stock 12,000 $7.43 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 This option has fully vested.