# Ultragenyx Pharmaceutical Inc.: filings

RARE · Nasdaq · CIK 1515673 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/rare.md) · [Financials](/companies/rare/financials.md) · [Filings](/companies/rare/filings.md) · [Insiders](/companies/rare/insiders.md)

## Reports and events: 286 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 575, 8-K 209, SC 13G/A 59, 144 39, 10-Q 38, 3 30, 424B5 18, SC 13G 17, S-8 15, DEFA14A 14, 10-K 13, DEF 14A 13, 4/A 12, 5 8, CT ORDER 6, SCHEDULE 13G 6, SC TO-T/A 6, SCHEDULE 13G/A 5, SC TO-C 5, CORRESP 4, D 4, S-1/A 4, S-3ASR 4, SC 13D/A 4, ARS 3, UPLOAD 3, 424B4 2, 424B7 2, EFFECT 2, FWP 2, S-1 2, SEC STAFF LETTER 2, 10-Q/A 1, 3/A 1, 8-A12B 1, 8-K/A 1, CERTNAS 1, DRS 1, S-1MEF 1, SC 13D 1, SC TO-T 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-19 | 09:00 ET | [8-K](/filings/0001193125-26-424739.md) | 8.01 Other events | 0001193125-26-424739 |
| 2026-10-14 | 09:00 ET | [8-K](/filings/0001193125-26-421079.md) | 1.01 Entry into a material agreement | 0001193125-26-421079 |
| 2026-10-07 | 09:00 ET | [8-K](/filings/0001193125-26-416251.md) | 1.01 Entry into a material agreement | 0001193125-26-416251 |
| 2026-09-17 | 15:55 ET | [8-K](/filings/0001515673-26-000006.md) | 8.01 Other events | 0001515673-26-000006 |
| 2026-09-02 | 16:04 ET | [8-K](/filings/0001193125-26-380165.md) | 8.01 Other events | 0001193125-26-380165 |
| 2026-08-19 | 17:24 ET | [8-K](/filings/0001193125-26-357185.md) | 8.01 Other events | 0001193125-26-357185 |
| 2026-08-11 | 08:30 ET | [8-K](/filings/0001193125-26-343525.md) | 8.01 Other events | 0001193125-26-343525 |
| 2026-08-05 | 18:07 ET | [10-Q](/filings/0001193125-26-333233.md) | Quarterly report, period 2026-06-30 | 0001193125-26-333233 |
| 2026-08-04 | 16:09 ET | [8-K](/filings/0001193125-26-332802.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-332802 |
| 2026-05-18 | 14:15 ET | [8-K](/filings/0001193125-26-228639.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0001193125-26-228639 |
| 2026-05-06 | 18:18 ET | [10-Q](/filings/0001193125-26-206960.md) | Quarterly report, period 2026-03-31 | 0001193125-26-206960 |
| 2026-05-05 | 16:06 ET | [8-K](/filings/0001193125-26-206368.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-206368 |
| 2026-04-02 | 08:45 ET | [8-K](/filings/0001193125-26-139084.md) | 8.01 Other events | 0001193125-26-139084 |
| 2026-03-30 | 08:45 ET | [8-K](/filings/0001193125-26-130498.md) | 8.01 Other events | 0001193125-26-130498 |
| 2026-03-27 | 16:30 ET | [DEF 14A](/filings/0001308179-26-000174.md) | Proxy statement, period 2026-05-14 | 0001308179-26-000174 |
| 2026-03-12 | 08:45 ET | [8-K](/filings/0001193125-26-103167.md) | 8.01 Other events | 0001193125-26-103167 |
| 2026-02-23 | 08:45 ET | [8-K](/filings/0001193125-26-062568.md) | 8.01 Other events | 0001193125-26-062568 |
| 2026-02-18 | 16:59 ET | [10-K](/filings/0001193125-26-057329.md) | Annual report, period 2025-12-31 | 0001193125-26-057329 |
| 2026-02-12 | 16:11 ET | [8-K](/filings/0001193125-26-048738.md) | 2.02 Results of operations; 2.05 Exit or disposal costs; 9.01 Financial statements and exhibits | 0001193125-26-048738 |
| 2026-02-03 | 08:15 ET | [8-K](/filings/0001193125-26-034474.md) | 8.01 Other events | 0001193125-26-034474 |
| 2026-01-30 | 08:45 ET | [8-K](/filings/0001193125-26-030590.md) | 8.01 Other events | 0001193125-26-030590 |
| 2026-01-12 | 07:45 ET | [8-K](/filings/0001193125-26-009791.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-26-009791 |
| 2025-12-30 | 16:11 ET | [8-K](/filings/0001193125-25-337099.md) | 8.01 Other events | 0001193125-25-337099 |
| 2025-12-29 | 08:45 ET | [8-K](/filings/0001193125-25-332422.md) | 8.01 Other events | 0001193125-25-332422 |
| 2025-11-05 | 18:09 ET | [10-Q](/filings/0001193125-25-265126.md) | Quarterly report, period 2025-09-30 | 0001193125-25-265126 |
| 2025-11-04 | 16:12 ET | [8-K](/filings/0001193125-25-264707.md) | 1.01 Entry into a material agreement; 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001193125-25-264707 |
| 2025-10-30 | 08:30 ET | [8-K](/filings/0001193125-25-257538.md) | 8.01 Other events | 0001193125-25-257538 |
| 2025-09-08 | 16:15 ET | [8-K](/filings/0000950170-25-113553.md) | 8.01 Other events | 0000950170-25-113553 |
| 2025-08-18 | 08:30 ET | [8-K](/filings/0000950170-25-109570.md) | 8.01 Other events | 0000950170-25-109570 |
| 2025-08-06 | 18:21 ET | [10-Q](/filings/0000950170-25-103290.md) | Quarterly report, period 2025-06-30 | 0000950170-25-103290 |
| 2025-08-05 | 16:07 ET | [8-K](/filings/0000950170-25-103026.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-25-103026 |
| 2025-07-31 | 16:15 ET | [8-K](/filings/0000950170-25-100918.md) | 8.01 Other events | 0000950170-25-100918 |
| 2025-07-11 | 16:46 ET | [8-K](/filings/0000950170-25-095334.md) | 8.01 Other events | 0000950170-25-095334 |
| 2025-07-09 | 16:30 ET | [8-K](/filings/0000950170-25-094806.md) | 8.01 Other events | 0000950170-25-094806 |
| 2025-06-27 | 08:15 ET | [8-K](/filings/0000950170-25-090616.md) | 8.01 Other events | 0000950170-25-090616 |
| 2025-05-19 | 17:03 ET | [8-K](/filings/0000950170-25-074529.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 9.01 Financial statements and exhibits | 0000950170-25-074529 |
| 2025-05-07 | 18:09 ET | [10-Q](/filings/0000950170-25-064726.md) | Quarterly report, period 2025-03-31 | 0000950170-25-064726 |
| 2025-05-06 | 16:10 ET | [8-K](/filings/0000950170-25-064473.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-25-064473 |
| 2025-03-28 | 17:00 ET | [DEF 14A](/filings/0001308179-25-000296.md) | Proxy statement, period 2025-05-15 | 0001308179-25-000296 |
| 2025-02-19 | 16:58 ET | [10-K](/filings/0000950170-25-023312.md) | Annual report, period 2024-12-31 | 0000950170-25-023312 |
| 2025-02-13 | 16:04 ET | [8-K](/filings/0000950170-25-019854.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-25-019854 |
| 2025-01-13 | 08:30 ET | [8-K](/filings/0000950170-25-004587.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-25-004587 |
| 2024-12-19 | 16:17 ET | [8-K](/filings/0000950170-24-138467.md) | 8.01 Other events | 0000950170-24-138467 |
| 2024-12-19 | 08:30 ET | [8-K](/filings/0000950170-24-138250.md) | 8.01 Other events | 0000950170-24-138250 |
| 2024-11-12 | 06:03 ET | [8-K](/filings/0000950170-24-124458.md) | 8.01 Other events | 0000950170-24-124458 |
| 2024-11-06 | 18:16 ET | [10-Q](/filings/0000950170-24-121679.md) | Quarterly report, period 2024-09-30 | 0000950170-24-121679 |
| 2024-11-05 | 16:06 ET | [8-K](/filings/0000950170-24-121459.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000950170-24-121459 |
| 2024-10-07 | 08:15 ET | [8-K](/filings/0000950170-24-113085.md) | 8.01 Other events | 0000950170-24-113085 |
| 2024-10-03 | 16:34 ET | [8-K](/filings/0000950170-24-112402.md) | 8.01 Other events | 0000950170-24-112402 |
| 2024-08-02 | 18:08 ET | [10-Q](/filings/0000950170-24-089488.md) | Quarterly report, period 2024-06-30 | 0000950170-24-089488 |

Page 1 of 6. [Older](/companies/rare/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 30, 2026, 14:15 ET. No prices; not investment advice.