Winger Matthew C. (CIK 1906654) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-20). Recent activity: Buy NNUP (200 shares), Buy NNUP (5,000 shares), Buy NNUP (10,000 shares), Buy NNUP (101,416 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-20 | NOCOPI TECHNOLOGIES INC/MD/ (NNUP) | Chief Executive Officer | Buy | 200 | $360 |
| 2026-08-20 | NOCOPI TECHNOLOGIES INC/MD/ (NNUP) | Chief Executive Officer | Buy | 5,000 | $8,550 |
| 2026-01-05 | NOCOPI TECHNOLOGIES INC/MD/ (NNUP) | Chief Executive Officer | Buy | 10,000 | $0 |
| 2025-06-10 | NOCOPI TECHNOLOGIES INC/MD/ (NNUP) | Chief Executive Officer | Buy | 101,416 | $111,558 |
来源：SEC Form 4 申报文件 · 截至 2026-08-20