Yu Jonathan Yen-Wen (CIK 1951849) reported 19 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-14). Recent activity: Buy IRON (804 shares), Sell IRON (804 shares), Buy IRON (100 shares), Sell IRON (100 shares), Buy IRON (300 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-14 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Buy | 804 | $10,854 |
| 2026-08-14 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Sell | 804 | $66,445 |
| 2026-07-09 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Buy | 100 | $1,350 |
| 2026-07-09 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Sell | 100 | $8,250 |
| 2026-06-30 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Buy | 300 | $4,050 |
| 2026-06-30 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Sell | 300 | $21,750 |
| 2026-06-24 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Buy | 9,700 | $130,950 |
| 2026-06-24 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Sell | 9,700 | $704,795 |
| 2026-06-18 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Buy | 5,261 | $51,873 |
| 2026-06-18 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Buy | 13,351 | $131,641 |
| 2026-06-18 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Sell | 11,651 | $801,102 |
| 2026-06-18 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Sell | 6,961 | $486,699 |
| 2026-02-17 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Sell | 3,231 | $203,101 |
| 2026-02-11 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Buy | 17,000 | $0 |
| 2025-11-13 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Buy | 30,000 | $79,500 |
| 2025-11-13 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Sell | 8,015 | $666,447 |
| 2025-11-13 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Sell | 4,585 | $385,094 |
| 2025-11-13 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Sell | 9,360 | $798,689 |
| 2025-11-13 | Disc Medicine, Inc. (IRON) | Chief Operating Officer | Sell | 8,040 | $690,716 |
Source: SEC Form 4 filings · as of 2026-08-14