Trade Summary

6 days ago, NIGON RICHARD, serving as Dir at NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC), sold 12,000 shares at $8.00 per share, for a total transaction value of $96,048.00. Following this transaction, NIGON RICHARD now holds 47,148 shares of NTIC.

This sale represents a 20.29% decrease in NIGON RICHARD's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Monday, July 20, 2026 and publicly disclosed via SEC Form 4 filing on Tuesday, July 21, 2026 at 4:28 PM ET, 1 day after the trade was made.

NORTHERN TECHNOLOGIES INTERNATIONAL CORP operates in the BASIC MATERIALS sector, specifically within the SPECIALTY CHEMICALS industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.