Ansider Title Company Date Price Return Shares Value
Von Falkenhausen Konstantin Non-Executive Director NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) 2025-05-06 $7.23 0.0% 1,100 $7,953
Calderon Nancy E. Non-Executive Director NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) 2025-04-25 $7.45 0.0% 1,000 $7,452
Kemp Sarah E. Non-Executive Director NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) 2024-04-23 $15.70 -16.9% 1,275 $20,018
Calderon Nancy E. Non-Executive Director NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) 2023-08-14 $13.17 -0.9% 500 $6,585
Kemp Sarah E. Non-Executive Director NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) 2023-04-18 $12.13 7.6% 2,473 $30,000
Calderon Nancy E. Non-Executive Director NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) 2023-01-30 $12.92 1.0% 500 $6,459
Kemp Sarah E. Non-Executive Director NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) 2022-01-12 $14.91 -12.5% 2,012 $30,005
Calderon Nancy E. Non-Executive Director NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) 2021-01-25 $14.78 -11.7% 1,000 $14,776
Calderon Nancy E. Non-Executive Director NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) 2020-07-23 $8.60 51.7% 1,000 $8,600