PACB Pacific Biosciences of California Inc

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM SD

Specialized Disclosure Report

Pacific Biosciences of California, Inc.

(Exact name of registrant as specified in its charter)

1380 Willow Road

Menlo Park, California 94025

(Address of principal executive offices, including zip code)

(650) 521-8000

(Registrant’s telephone number, including area code)

(Former name or former address, if changed since last report)

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

☒  Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2013.

Section 1 . Conflict minerals disclsosure

Item 1.01 Conflict Minerals Disclosure and Report, Exhibit

Pacific Biosciences of California, Inc. evaluated its current product lines and determined that certain product s   it manufacture s or contract s to manufacture contain tin, tungsten, tantalum and/or gold . The survey of its suppliers determined that its supply chain is “DRC conflict undeterminable” and, as a result, it is filing a Conflict Minerals Report. A copy of Pacific Biosciences of California, Inc.’s Conflict Minerals Report is filed as Exhibit 1.0 2 her eto.  A copy of this Form SD and the Conflicts Minerals Report are publicly available at www.pacb.com .

Item 1.02  Exhibit

See Item 2.01

Section 2. Exhibits

Item 2.01 Exhibits

The following exhibit is filed as part of this report:

Exhibit 1.0 2 — Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form.

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: May 30 , 2014