8-K

UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Ultragenyx Pharmaceutical Inc.

(Exact name of Registrant as Specified in Its Charter)

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.07 Submission of Matters to a Vote of Security Holders.

On June 24, 2022, Ultragenyx Pharmaceutical Inc. (the “Company”) held its Annual Meeting of Stockholders (the “Annual Meeting”). As of the record date of April 26, 2022, 69,871,583 shares of the Company’s common stock were outstanding and entitled to vote at the Annual Meeting. A total of 67,140,757 shares of the Company’s common stock were represented in person or by proxy at the Annual Meeting.

Proposal No. 1 – Election of Class III Directors

At the Annual Meeting, the Company’s stockholders elected the Class III director nominees below to the Company’s Board of Directors to hold office until the 2025 Annual Meeting of Stockholders or until their successors are elected. The votes on Proposal 1 were as follows:

Proposal No. 2 – Ratification of Selection of Independent Registered Accounting Firm

At the Annual Meeting, the Company’s stockholders ratified the selection of Ernst & Young LLP as the independent registered public accounting firm of the Company for its fiscal year ending December 31, 2022. The votes on Proposal 2 were as follows:

Proposal No. 3 – Advisory (Non-Binding) Vote to Approve Executive Compensation

At the Annual Meeting, the Company’s stockholders voted, on an advisory basis, in favor of a resolution approving the compensation the Company pays to its “named executive officers” as described in the Proxy Statement. The votes on Proposal 3 were as follows:

Proposal No. 4 – Advisory (Non-Binding) Vote on Frequency of Advisory Vote on Executive Compensation

At the Annual Meeting, the Company’s stockholders voted, on an advisory basis, in favor of the frequency of future advisory votes on approving the compensation the Company pays to its “named executive officers” as described in the Proxy Statement. The votes on Proposal 4 were as follows:

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.