tsai chun-hsien (CIK 1859363) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-04-17). Recent activity: Buy AIMD (300,000 shares), Buy AIMD (80,000 shares), Buy AIMD (900,000 shares), Buy AIMD (200,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-17 | Ainos, Inc. (AIMD) | CEO, PRESIDENT, CHAIRMAN | Buy | 300,000 | $483,000 |
| 2025-11-26 | Ainos, Inc. (AIMD) | CEO, PRESIDENT, CHAIRMAN | Buy | 80,000 | $168,000 |
| 2025-04-09 | Ainos, Inc. (AIMD) | CEO, PRESIDENT, CHAIRMAN | Buy | 900,000 | $432,000 |
| 2025-03-12 | Ainos, Inc. (AIMD) | CEO, PRESIDENT, CHAIRMAN | Buy | 200,000 | $92,000 |
Source: SEC Form 4 filings · as of 2026-04-17