Written Communication Relating to an Issuer or Third Party (sc To-c)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 18, 2017

ULTRAGENYX PHARMACEUTICAL INC.

(Exact name of registrant as specified in charter)

Delaware

001-36276

27-2546083

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)


60 Leveroni Court, Novato, California		94949
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (415) 483-8800

Not Applicable

(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))

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 8.01.

Other Events.

On September 18, 2017, Ultragenyx Pharmaceutical Inc. (the “ Company ”) held an investor conference call to discuss the Company’s proposal to acquire all of the outstanding shares of common stock of Dimension Therapeutics, Inc. for $5.50 per share in cash.

A transcript of the investor conference call is filed herewith as Exhibit 99.1.

Item 9.01

Financial Statements and Exhibits

(d) Exhibits


Exhibit No.		Description

99.1		Transcript of Investor Conference Call held by the Company on September 18, 2017

* * *

SIGNATURE

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 hereunto duly authorized.

Date: September 18, 2017