MacDonald Sean Arthur (CIK 1778981) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-29). Recent activity: Buy EDSA (19,000 shares), Buy EDSA (20,001 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-29 | Edesa Biotech, Inc. (EDSA) | Director | Buy | 19,000 | $0 |
| 2025-06-02 | Edesa Biotech, Inc. (EDSA) | Director | Buy | 20,001 | $0 |
来源：SEC Form 4 申报文件 · 截至 2026-05-29