Ultragenyx Pharmaceutical Inc. SEC filings RARE
Ultragenyx Pharmaceutical Inc. has 1,001 filings in SEC EDGAR's recent list, going back to Jul 20, 2015. Its latest annual report, Form ARS, was filed on Mar 27, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 3, 2026 (acquisition or sale of assets, results of operations, exit or restructuring costs). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 4, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Acquisition or sale of assets, Results of operations, Exit or restructuring costs
|
Nov 3, 2026 | Oct 30, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 20, 2026 | — |
| 4 | Insider transaction | Oct 19, 2026 | Oct 15, 2026 |
| 8-K |
Current report
Other events
|
Oct 19, 2026 | Oct 19, 2026 |
| 8-K |
Current report
Material agreement
|
Oct 14, 2026 | Oct 8, 2026 |
| 8-K |
Current report
Material agreement
|
Oct 7, 2026 | Oct 6, 2026 |
| 8-K |
Current report
Other events
|
Sep 17, 2026 | Sep 17, 2026 |
| 4 | Insider transaction | Sep 15, 2026 | Sep 15, 2026 |
| 144 | Notice of proposed sale | Sep 15, 2026 | — |
| 4 | Insider transaction | Sep 8, 2026 | Sep 3, 2026 |
| 8-K |
Current report
Other events
|
Sep 2, 2026 | Sep 2, 2026 |
| 8-K |
Current report
Other events
|
Aug 19, 2026 | Aug 19, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 14, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 13, 2026 | — |
| 8-K |
Current report
Other events
|
Aug 11, 2026 | Aug 7, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Aug 7, 2026 | — |
| 10-Q | Quarterly report | Aug 5, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2026 | Aug 4, 2026 |
| 4 | Insider transaction | Aug 4, 2026 | Aug 3, 2026 |
| 4 | Insider transaction | Aug 4, 2026 | Aug 3, 2026 |
| 144 | Notice of proposed sale | Aug 3, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 31, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Jul 31, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 30, 2026 | — |
| 4 | Insider transaction | Jul 6, 2026 | Jul 1, 2026 |
| 144 | Notice of proposed sale | Jul 1, 2026 | — |
| 4 | Insider transaction | Jun 15, 2026 | Jun 15, 2026 |
| 4 | Insider transaction | Jun 15, 2026 | Jun 15, 2026 |
| 144 | Notice of proposed sale | Jun 15, 2026 | — |
| 144 | Notice of proposed sale | Jun 15, 2026 | — |
| S-8 | Employee stock plan registration | Jun 12, 2026 | — |
| 4 | Insider transaction | Jun 1, 2026 | Jun 1, 2026 |
| 144 | Notice of proposed sale | Jun 1, 2026 | — |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 144 | Notice of proposed sale | May 18, 2026 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 18, 2026 | May 14, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | May 12, 2026 | — |
| 4 | Insider transaction | May 6, 2026 | May 5, 2026 |
| 10-Q | Quarterly report | May 6, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 5, 2026 | May 5, 2026 |
| 4 | Insider transaction | May 4, 2026 | May 1, 2026 |
| 144 | Notice of proposed sale | May 1, 2026 | — |
| DEFA14A | Additional proxy material | Apr 30, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 4 | Insider transaction | Apr 24, 2026 | Apr 22, 2026 |
| 4 | Insider transaction | Apr 20, 2026 | Apr 16, 2026 |
| 4 | Insider transaction | Apr 20, 2026 | Apr 16, 2026 |
| 4 | Insider transaction | Apr 20, 2026 | Apr 16, 2026 |
| 4 | Insider transaction | Apr 20, 2026 | Apr 16, 2026 |
| 4 | Insider transaction | Apr 20, 2026 | Apr 16, 2026 |
| 4 | Insider transaction | Apr 20, 2026 | Apr 16, 2026 |
| 4 | Insider transaction | Apr 20, 2026 | Apr 16, 2026 |
| 4 | Insider transaction | Apr 2, 2026 | Apr 1, 2026 |
| 8-K |
Current report
Other events
|
Apr 2, 2026 | Apr 2, 2026 |
| 144 | Notice of proposed sale | Apr 1, 2026 | — |
| 8-K |
Current report
Other events
|
Mar 30, 2026 | Mar 30, 2026 |
| ARS | Annual report to shareholders | Mar 27, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Mar 27, 2026 | — |
| DEF 14A | Proxy statement | Mar 27, 2026 | May 14, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 8-K |
Current report
Other events
|
Mar 12, 2026 | Mar 12, 2026 |
| 4 | Insider transaction | Mar 10, 2026 | Mar 6, 2026 |
| 144 | Notice of proposed sale | Mar 10, 2026 | — |
| 144 | Notice of proposed sale | Mar 6, 2026 | — |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 2, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 4 | Insider transaction | Mar 3, 2026 | Mar 1, 2026 |
| 144 | Notice of proposed sale | Mar 3, 2026 | — |
| 144 | Notice of proposed sale | Mar 2, 2026 | — |
| 8-K |
Current report
Other events
|
Feb 23, 2026 | Feb 23, 2026 |
| 10-K | Annual report | Feb 18, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations, Exit or restructuring costs
|
Feb 12, 2026 | Feb 12, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 5, 2026 | — |
| 4 | Insider transaction | Feb 3, 2026 | Feb 2, 2026 |
| 8-K |
Current report
Other events
|
Feb 3, 2026 | Feb 3, 2026 |
| 144 | Notice of proposed sale | Feb 2, 2026 | — |
| 8-K |
Current report
Other events
|
Jan 30, 2026 | Jan 30, 2026 |
| 8-K |
Current report
Results of operations
|
Jan 12, 2026 | Jan 12, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Jan 2, 2026 |
| 144 | Notice of proposed sale | Jan 2, 2026 | — |
| 8-K |
Current report
Other events
|
Dec 30, 2025 | Dec 30, 2025 |
| 4 | Insider transaction | Dec 30, 2025 | Dec 29, 2025 |
| 8-K |
Current report
Other events
|
Dec 29, 2025 | Dec 29, 2025 |
| 4 | Insider transaction | Dec 11, 2025 | Dec 10, 2025 |
| 144 | Notice of proposed sale | Dec 10, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 5, 2025 | — |
| 10-Q | Quarterly report | Nov 5, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Material agreement, Results of operations
|
Nov 4, 2025 | Nov 3, 2025 |
| 8-K |
Current report
Other events
|
Oct 30, 2025 | Oct 30, 2025 |
| 4 | Insider transaction | Oct 14, 2025 | Oct 13, 2025 |
| 4 | Insider transaction | Sep 19, 2025 | Sep 18, 2025 |
| 144 | Notice of proposed sale | Sep 12, 2025 | — |
| 4 | Insider transaction | Sep 12, 2025 | Sep 12, 2025 |
| 8-K |
Current report
Other events
|
Sep 8, 2025 | Sep 8, 2025 |
| 4 | Insider transaction | Sep 8, 2025 | Sep 5, 2025 |
| 8-K |
Current report
Other events
|
Aug 18, 2025 | Aug 18, 2025 |
| 10-Q | Quarterly report | Aug 6, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2025 | Aug 5, 2025 |
| 8-K |
Current report
Other events
|
Jul 31, 2025 | Jul 31, 2025 |
| S-8 | Employee stock plan registration | Jul 18, 2025 | — |
| 8-K |
Current report
Other events
|
Jul 11, 2025 | Jul 11, 2025 |
| 8-K |
Current report
Other events
|
Jul 9, 2025 | Jul 9, 2025 |
| 8-K |
Current report
Other events
|
Jun 27, 2025 | Jun 27, 2025 |
| 4 | Insider transaction | Jun 23, 2025 | Jun 20, 2025 |
| 144 | Notice of proposed sale | Jun 20, 2025 | — |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 4 | Insider transaction | May 19, 2025 | May 15, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 19, 2025 | May 15, 2025 |
| 10-Q | Quarterly report | May 7, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 6, 2025 | May 6, 2025 |
| 4 | Insider transaction | May 5, 2025 | Apr 21, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Apr 24, 2025 | — |
| ARS | Annual report to shareholders | Mar 28, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Mar 28, 2025 | — |
| DEF 14A | Proxy statement | Mar 28, 2025 | May 15, 2025 |
| 4 | Insider transaction | Mar 10, 2025 | Mar 6, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Feb 28, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 4, 2025 | Mar 1, 2025 |
| 4 | Insider transaction | Mar 3, 2025 | Feb 27, 2025 |
| 144 | Notice of proposed sale | Feb 28, 2025 | — |
| 144 | Notice of proposed sale | Feb 27, 2025 | — |
| 10-K | Annual report | Feb 19, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 13, 2025 | Feb 13, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2025 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 10, 2025 | — |
| 8-K |
Current report
Results of operations
|
Jan 13, 2025 | Jan 12, 2025 |
| 4 | Insider transaction | Dec 31, 2024 | Dec 30, 2024 |
| 144 | Notice of proposed sale | Dec 30, 2024 | — |
| 8-K |
Current report
Other events
|
Dec 19, 2024 | Dec 19, 2024 |
| 8-K |
Current report
Other events
|
Dec 19, 2024 | Dec 19, 2024 |
| 4 | Insider transaction | Dec 11, 2024 | Dec 10, 2024 |
| 4 | Insider transaction | Dec 11, 2024 | Dec 9, 2024 |
| 144 | Notice of proposed sale | Dec 10, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 14, 2024 | — |
| 8-K |
Current report
Other events
|
Nov 12, 2024 | Nov 9, 2024 |
| 10-Q | Quarterly report | Nov 6, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2024 | Nov 5, 2024 |
| 4 | Insider transaction | Oct 11, 2024 | Oct 10, 2024 |
| 8-K |
Current report
Other events
|
Oct 7, 2024 | Oct 7, 2024 |
| 8-K |
Current report
Other events
|
Oct 3, 2024 | Oct 3, 2024 |
| 4 | Insider transaction | Sep 18, 2024 | Sep 16, 2024 |
| 4 | Insider transaction | Sep 5, 2024 | Sep 3, 2024 |
| 4 | Insider transaction | Sep 5, 2024 | Sep 3, 2024 |
| 144 | Notice of proposed sale | Sep 3, 2024 | — |
| 4 | Insider transaction | Aug 7, 2024 | Aug 6, 2024 |
| 144 | Notice of proposed sale | Aug 6, 2024 | — |
| 10-Q | Quarterly report | Aug 2, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2024 | Aug 1, 2024 |
| 8-K |
Current report
Other events
|
Jul 17, 2024 | Jul 17, 2024 |
| S-8 | Employee stock plan registration | Jul 12, 2024 | — |
| 4 | Insider transaction | Jul 3, 2024 | Jul 2, 2024 |
| 144 | Notice of proposed sale | Jul 2, 2024 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 21, 2024 | Jun 18, 2024 |
| 4 | Insider transaction | Jun 20, 2024 | Jun 18, 2024 |
| 4 | Insider transaction | Jun 20, 2024 | Jun 18, 2024 |
| 4 | Insider transaction | Jun 20, 2024 | Jun 18, 2024 |
| 4 | Insider transaction | Jun 20, 2024 | Jun 18, 2024 |
| 4 | Insider transaction | Jun 20, 2024 | Jun 18, 2024 |
| 4 | Insider transaction | Jun 20, 2024 | Jun 18, 2024 |
| 4 | Insider transaction | Jun 20, 2024 | Jun 18, 2024 |
| 8-K |
Current report
Material agreement
|
Jun 17, 2024 | Jun 13, 2024 |
| 424B5 | Prospectus supplement | Jun 14, 2024 | — |
| 4 | Insider transaction | Jun 12, 2024 | Jun 12, 2024 |
| 424B5 | Prospectus supplement | Jun 12, 2024 | — |
| 144 | Notice of proposed sale | Jun 12, 2024 | — |
| 8-K |
Current report
Other events
|
Jun 12, 2024 | Jun 12, 2024 |
| 8-K |
Current report
Other events
|
Jun 12, 2024 | Jun 11, 2024 |
| 4 | Insider transaction | Jun 10, 2024 | Jun 10, 2024 |
| 144 | Notice of proposed sale | Jun 10, 2024 | — |
| UPLOAD | Letter from the SEC | Jun 10, 2024 | — |
| 8-K |
Current report
Other events
|
May 30, 2024 | May 30, 2024 |
| CORRESP | Letter to the SEC | May 17, 2024 | — |
| 4 | Insider transaction | May 3, 2024 | May 2, 2024 |
| 10-Q | Quarterly report | May 3, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 2, 2024 | May 2, 2024 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- RARE (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Novato, CA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1515673
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.