Form 4 for RARE Ultragenyx Pharmaceutical Inc.
Accepted 2026-04-20 17:17:52 ET · period of report 2026-04-16 · accession 0001193125-26-164297 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-04-20 17:17 | 2026-04-16 | RARE | Huang Dennis Karl | See Remarks | A - Grant | $0.00 | +23.1K | 147.8K | +19% | $0 |
| D | 2026-04-20 17:17 | 2026-04-16 | RARE | Huang Dennis Karl | See Remarks | A - Grant | $0.00 | +79.9K | 79.9K | New | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-04-16 | A | A | 23,116 | $0.00 | 147,845 | D | — | — | (F1) Award of Restricted Stock Units ("RSUs") under the Company's 2023 Incentive Plan. The RSUs shall vest with respect to 1/4th of the underlying shares on each anniversary of the grant date, such that the RSUs are fully vested on the fourth anniversary of the grant date (F2) Includes previously reported shares of common stock underlying RSUs granted to the Reporting Person, which are subject to certain vesting conditions. |
| 2 | Derivative | Stock Option (Right to Buy) | 2026-04-16 | A | A | 79,936 | $0.00 | 79,936 | D | $24.52 · — to 2036-04-16 | 79,936 Common Stock | (F3) On the first anniversary of the grant date of the option (the "Option Anniversary Date"), 1/4th of the shares initially subject to the option shall vest; thereafter, 1/48th of the shares initially subject to the option shall vest on each month as measured from the Option Anniversary Date. |