NORTHERN TECHNOLOGIES INTERNATIONAL CORP — Director's Dealing 2012

Sep 25, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC)
CIK: 0000875582
Period of Report: 2012-09-24

Reporting Person: WOLSFELD MATTHEW C (CFO and Corporate Secretary)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-09-24	Common Stock	M	9000	$9.95	Acquired	57565	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-09-24	Stock Option (right to buy)	$9.95	M	9000	Disposed	2012-11-16	Common Stock (9000)	Direct

Footnotes

F1: Includes 58 shares that were purchased under the Northern Technologies International Employee Stock Purchase Plan

F2: This option has fully vested