Huang Dennis Karl (CIK 1641217) reported 6 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-04-20). Recent activity: Buy RARE (23,116 shares), Buy RARE (11,137 shares), Sell RARE (999 shares), Buy RARE (14,494 shares), Buy RARE (18,443 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-20 | Ultragenyx Pharmaceutical Inc. (RARE) | See Remarks | Buy | 23,116 | $0 |
| 2026-03-03 | Ultragenyx Pharmaceutical Inc. (RARE) | See Remarks | Buy | 11,137 | $0 |
| 2026-03-03 | Ultragenyx Pharmaceutical Inc. (RARE) | See Remarks | Sell | 999 | $23,367 |
| 2025-03-04 | Ultragenyx Pharmaceutical Inc. (RARE) | See Remarks | Buy | 14,494 | $0 |
| 2025-03-04 | Ultragenyx Pharmaceutical Inc. (RARE) | See Remarks | Buy | 18,443 | $0 |
| 2025-03-04 | Ultragenyx Pharmaceutical Inc. (RARE) | See Remarks | Sell | 1,348 | $57,856 |
Source: SEC Form 4 filings · as of 2026-04-20