Lee Sunggyu (CIK 1302082) reported 1 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-09-03). Recent activity: Buy NTIC (6,188 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-03 | NORTHERN TECHNOLOGIES INTERNATIONAL CORP (NTIC) | Director | Buy | 6,188 | $0 |
来源：SEC Form 4 申报文件 · 截至 2026-09-03