Ultragenyx Pharmaceutical Inc.

RARE·NASDAQ·$23.14Share Price as of 11/2·$2BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/05/26 10-QQ1 ended 03/31/2605/06/26 10-KFY 202502/18/26 10-QQ3 ended 09/30/2511/05/25 10-QQ2 ended 06/30/2508/06/25

Disclosures

8-KCurrent report10/19/26 8-KCurrent report10/14/26 8-KCurrent report10/07/26 8-KCurrent report09/17/26 8-KCurrent report09/02/26

Prospectuses and Registrations

S-8Registration of securities for employees06/12/26 S-8Registration of securities for employees07/18/25 S-8Registration of securities for employees07/12/24 424B5Prospectus supplement06/14/24 424B5Prospectus supplement06/12/24

Proxies

DEFA14AAdditional proxy materials04/30/26 DEF 14ADefinitive proxy03/27/26 DEFA14AAdditional proxy materials03/27/26 DEF 14ADefinitive proxy03/28/25 DEFA14AAdditional proxy materials03/28/25

Ownership

SC 13GBeneficial ownership10/20/26 Form 4Insider transaction10/19/26 144Proposed sale of securities09/15/26 Form 4Insider transaction09/15/26 Form 4Insider transaction09/08/26

Other

ARSAnnual report to shareholders03/27/26 ARSAnnual report to shareholders03/28/25 UPLOADLetter from the SEC06/10/24 CORRESPCorrespondence with the SEC05/17/24 ARSAnnual report to shareholders04/26/24