NORTHERN TECHNOLOGIES INTERNATIONAL CORP — Director's Dealing 2008

May 6, 2008

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTI)
CIK: 0000875582
Period of Report: 2008-05-02

Reporting Person: Frank Tilman Bernhard (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2008-05-02	Stock Option (Right to Buy)	$7.75	A	666	Acquired	2013-05-01	Common Stock (666)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	0	Direct

Footnotes

F1: This option vests with respect to 1/3 of the shares on each of May 2, 2009, May 2, 2010, and May 2, 2011.