Northern Technologies International Corporation

Last updated September 27, 2026

Organization details

Legal name
Northern Technologies International Corporation
Ownership
Public
Status
Active
Headquarters country
United States
Ticker symbol
NTIC
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0000875582

Board of directors

Chief executives

G. Patrick Lynch · President & CEO
Dates unknown

Board connections

2 of this board's directors also sit on 2 other boards.

Network of Northern Technologies International Corporation's board connections Belden Inc Belden Inc Celcuity Inc. Celcuity Inc. Nancy E. Calderon Nancy E. Calderon Richard Nigon Richard Nigon Northern Technologies Inte...
Shared director Other board Same sector

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$0
0 purchases by 0 insiders
Sold, last 12 months
$0
0 sales by 0 insiders
Date Insider Transaction Shares Price Value
Sep 1, 2025 Richard Nigon Director Grant or award +8,086 — —
Sep 1, 2025 Sarah E. Kemp Director Grant or award +6,739 — —
Sep 1, 2025 Cristina Lucia Duarte Pinho Director Grant or award +6,739 — —
Sep 1, 2025 Nancy E. Calderon Director Grant or award +6,739 — —
Aug 13, 2025 Nancy E. Calderon Director Small acquisition +3 $7.72 $20
Aug 13, 2025 Nancy E. Calderon Director Small acquisition +3 $7.72 $22
Jul 24, 2025 Richard Nigon Director Option exercise +12,000 $7.43 $89,160
Jul 24, 2025 Richard Nigon Director Shares withheld for tax −10,873 $8.20 $89,159
May 14, 2025 Nancy E. Calderon Director Small acquisition +3 $7.35 $20
May 14, 2025 Nancy E. Calderon Director Small acquisition +3 $7.35 $22
May 6, 2025 Falkenhausen Konstantin Von Director Open-market purchase +1,100 $7.23 $7,953
Apr 25, 2025 Nancy E. Calderon Director Open-market purchase +1,000 $7.45 $7,450
Feb 12, 2025 Nancy E. Calderon Director Small acquisition +6 $11.26 $72
Feb 12, 2025 Nancy E. Calderon Director Small acquisition +14 $11.26 $152
Nov 13, 2024 Nancy E. Calderon Director Small acquisition +5 $13.29 $72

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