| $126M | ||
| $85M | ||
| $34M | ||
| $33M | ||
| $32M | ||
| $27M |
Buys | $0 | 0 | 0 |
Sells | $224,571 | 3 | 100 |
| NIGON RICHARD | director | 0 | $0 | 1 | $96,048 | $-96,048 |
| LYNCH G PATRICK | President and CEO | 0 | $0 | 2 | $128,523 | $-128,523 |
Northern Technologies International Corporation (NTIC) specializes in the development and global distribution of advanced rust and corrosion prevention solutions. Operating across North and South America, Europe, Asia, and the Middle East, the company serves a wide international market. Under its primary ZERUST® brand, NTIC provides a broad spectrum of anti-corrosion products. These encompass protective plastic and paper packaging, liquid formulations, specialized coatings, rust removal agents, industrial cleaners, diffusers, and bespoke …
Over the last 12 months, insiders at Northern Technologies International Corporation have bought $0 and sold $224,571 worth of Northern Technologies International Corporation stock.
On average, over the past 5 years, insiders at Northern Technologies International Corporation have bought $27,118 and sold $123,525 worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 1,100 shares for transaction amount of $7,953 was made by von Falkenhausen Konstantin (director) on 2025‑05‑06.
| 2026-07-30 | Sale | LYNCH G PATRICK | President and CEO | 16,070 0.1697% | $8.00 | $128,507 | -1.13% | |
| 2026-07-29 | Sale | LYNCH G PATRICK | President and CEO | 2 <0.0001% | $8.10 | $16 | -0.94% | |
| 2026-07-20 | Sale | NIGON RICHARD | director | 12,000 0.1265% | $8.00 | $96,048 | -1.13% | |
| 2025-05-06 | von Falkenhausen Konstantin | director | 1,100 0.0117% | $7.23 | $7,953 | +9.36% | ||
| 2025-04-25 | Calderon Nancy E. | director | 1,000 0.0105% | $7.45 | $7,452 | +4.78% | ||
| 2024-04-23 | Kemp Sarah E. | director | 1,275 0.0131% | $15.70 | $20,018 | -19.06% | ||
| 2023-08-14 | Calderon Nancy E. | director | 500 0.0053% | $13.17 | $6,585 | +0.04% | ||
| 2023-07-27 | Sale | NIGON RICHARD | director | 1,847 0.0195% | $12.17 | $22,478 | +7.34% | |
| 2023-04-18 | Kemp Sarah E. | director | 2,473.37 0.0266% | $12.13 | $30,000 | +3.78% | ||
| 2023-01-30 | Calderon Nancy E. | director | 500 0.0055% | $12.92 | $6,459 | -1.26% | ||
| 2022-01-12 | Kemp Sarah E. | director | 2,012 0.0238% | $14.91 | $30,005 | -9.39% | ||
| 2021-01-25 | Calderon Nancy E. | director | 1,000 0.0112% | $14.78 | $14,776 | +12.81% | ||
| 2020-07-23 | Calderon Nancy E. | director | 1,000 0.0116% | $8.60 | $8,600 | +69.54% | ||
| 2015-07-24 | von Falkenhausen Konstantin | director | 600 0.0132% | $17.02 | $10,212 | -18.01% | ||
| 2015-04-28 | Colwell Barbara D. | director | 1,000 0.0223% | $17.38 | $17,379 | -9.47% | ||
| 2014-04-16 | Sale | LYNCH G PATRICK | President and CEO | 12,000 0.2676% | $21.25 | $255,000 | -1.83% | |
| 2013-11-26 | Sale | CHENU PIERRE | director | 1,500 0.0333% | $16.75 | $25,125 | +20.75% | |
| 2013-04-22 | NIGON RICHARD | director | 2,000 0.045% | $10.99 | $21,980 | +54.88% | ||
| 2013-02-25 | Sale | CHENU PIERRE | director | 1,000 0.0227% | $13.29 | $13,285 | +12.63% | |
| 2013-01-29 | Sale | CHENU PIERRE | director | 1,000 0.0239% | $13.10 | $13,100 | +8.96% |
| NIGON RICHARD | director | 47148 0.4967% | $353,138.52 | 3 | 2 | +54.88% |
| LAREAU RICHARD G | director | 29000 0.3055% | $217,210.00 | 1 | 0 | |
| von Falkenhausen Konstantin | director | 18219 0.1919% | $136,460.31 | 2 | 0 | +9.36% |
| Calderon Nancy E. | director | 7954 0.0838% | $59,578.93 | 5 | 0 | +17.18% |
| Kemp Sarah E. | director | 5760 0.0607% | $43,145.19 | 3 | 0 | <0.0001% |
| Colwell Barbara D. | director | 1500 0.0158% | $11,235.00 | 1 | 0 |
| Increased Positions | 12 | +17.39% | 382,162 | +12.09% |
| Decreased Positions | 26 | -37.68% | 251,343 | -7.95% |
| New Positions | 3 | New | 192,309 | New |
| Sold Out Positions | 7 | Sold Out | 92,393 | Sold Out |
| Total Postitions | 55 | -20.29% | 3M | +4.14% |
| Needham Investment Management Llc | $5,197.00 | 7.11% | 640,000 | +124,500 | +24.15% | 2025-09-30 |
| Vanguard Group Inc | $3,450.00 | 4.72% | 424,851 | -6,974 | -1.61% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $2,910.00 | 3.98% | 358,414 | -2,046 | -0.57% | 2025-09-30 |
| Meros Investment Management, Lp | $2,314.00 | 3.17% | 284,941 | -524 | -0.18% | 2025-09-30 |
| Perritt Capital Management Inc | $1,397.00 | 1.91% | 172,047 | -1,406 | -0.81% | 2025-09-30 |
| Ballast Advisors Llc | $1,389.00 | 1.9% | 171,047 | 0 | 0% | 2025-09-30 |
| Renaissance Technologies Llc | $892.00 | 1.22% | 109,877 | +5,000 | +4.77% | 2025-09-30 |
| Geode Capital Management, Llc | $752.00 | 1.03% | 92,626 | 0 | 0% | 2025-09-30 |
| Dynamic Advisor Solutions Llc | $706.00 | 0.97% | 86,932 | +19,177 | +28.3% | 2025-09-30 |
| Peapod Lane Capital Llc | $703.00 | 0.96% | 86,634 | +21,023 | +32.04% | 2025-09-30 |