NEEDHAM INVESTMENT MANAGEMENT LLC - 30 Sep 2025 SCHEDULE 13G/A Report for Northern Technologies International Corp. Common Stock, par value $0.02 per share (NTIC)

Filing Manager
NEEDHAM INVESTMENT MANAGEMENT LLC
Reporting Manager
NEEDHAM INVESTMENT MANAGEMENT L.L.C.
Security
Northern Technologies International Corp. Common Stock, par value $0.02 per share
Symbol
NTIC
Shares outstanding
9,411,765 shares
Disclosed Ownership
640,000 shares
Ownership
6.8%
Form type
SCHEDULE 13G/A
Filing time
13 Nov 2025, 17:42:33 UTC
Date of event
30 Sep 2025
SEC
View on sec.gov

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
NEEDHAM INVESTMENT MANAGEMENT L.L.C. 6.8% 640,000 0 640,000 By: /s/ James W. Giangrasso James W. Giangrasso, Chief Financial Officer
NEEDHAM ASSET MANAGEMENT, LLC 6.8% 640,000 0 640,000 By: /s/ James W. Giangrasso James W. Giangrasso, Authorized Person
NEEDHAM AGGRESSIVE GROWTH FUND 6.8% 640,000 0 640,000 By: /s/ James W. Giangrasso James W. Giangrasso, Chief Financial Officer
GEORGE A. NEEDHAM 6.8% 640,000 0 640,000 By: /s/ George A. Needham George A. Needham