Ultragenyx Pharmaceutical Inc. — DEFA14A Filings
13 DEFA14A filings on record
This page lists all DEFA14A filings submitted to the SEC by Ultragenyx Pharmaceutical Inc. (RARE), sorted by most recent first. Each row links to the full filing on EdgarLookup. Ultragenyx Pharmaceutical Inc. has filed 13 DEFA14A documents with the SEC since 2014. To view all SEC filings by Ultragenyx Pharmaceutical Inc., see the full filings list.
All
10-K
10-Q
10-Q/A
144
3
3/A
4
4/A
424B4
424B5
424B7
5
8-A12B
8-K
8-K/A
ARS
CERTNAS
CORRESP
CT ORDER
D
DEF 14A
DEFA14A
DRS
EFFECT
FWP
S-1
S-1/A
S-1MEF
S-3ASR
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SC TO-C
SC TO-T
SC TO-T/A
SCHEDULE 13G
SCHEDULE 13G/A
SEC STAFF LETTER
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEFA14A | DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS | 0001308179-26-000175 | Mar 27, 2026 | — |
| DEFA14A | DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS | 0001308179-25-000297 | Mar 28, 2025 | — |
| DEFA14A | ULTRAGENYX PHARMACEUTICAL INC. - DEFA14A | 0001308179-24-000610 | Apr 26, 2024 | — |
| DEFA14A | ULTRAGENYX PHARMACEUTICAL INC. - DEFA14A | 0001308179-23-000758 | Apr 24, 2023 | — |
| DEFA14A | ULTRAGENYX PHARMACEUTICAL INC. - DEFA14A | 0001308179-22-000295 | Apr 28, 2022 | — |
| DEFA14A | ULTRAGENYX PHARMACEUTICAL INC. - DEFA14A | 0001308179-21-000277 | Apr 29, 2021 | — |
| DEFA14A | DEFA14A | 0001193125-20-126217 | Apr 29, 2020 | — |
| DEFA14A | DEFA14A | 0001193125-19-112721 | Apr 22, 2019 | — |
| DEFA14A | DEFA14A | 0001193125-18-136541 | Apr 27, 2018 | — |
| DEFA14A | DEFA14A | 0001193125-17-148107 | Apr 28, 2017 | — |
| DEFA14A | DEFA14A | 0001193125-16-544877 | Apr 18, 2016 | — |
| DEFA14A | DEFA14A | 0001193125-15-153008 | Apr 28, 2015 | — |
| DEFA14A | DEFINITIVE ADDITIONAL MATERIALS | 0001193125-14-211543 | May 23, 2014 | — |