Summary of PACIFIC BIOSCIENCES OF CALIFORNIA INC

ITEM 5.02. DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY ARRANGEMENTS OF CERTAIN OFFICERS

On July 20, 2012, the board of directors (the "Board") of Pacific Biosciences of California, Inc. (the "Company") appointed David Botstein, Ph.D., 69, as a Class III director to serve on the Board effective immediately.

Dr. Botstein currently serves as the Director of the Lewis-Sigler Institute for Integrative Genomics and Anthony B. Evnin Professor of Genomics at Princeton University where he has served since 2003. From 1990 to 2003, Dr. Botstein was Chairman of the Department of Genetics at Stanford University. He previously served as Vice President for Science at Genentech, and today serves on Genentech's Scientific Resource Board and is a member of the National Academy of Sciences and the Institute of Medicine. Dr. Botstein holds a Ph.D. in Human Genetics from the University of Michigan and an A.B. in Biochemical Sciences from Harvard.

As previously disclosed in the Company's proxy statement for the 2012 Annual Meeting of Stockholders, as a non-employee director, Dr. Botstein will receive an annual retainer of $35,000. Pursuant to the Company's outside director equity compensation policy, Dr. Botstein was automatically granted a stock option to purchase 35,000 shares of the Company's common stock on the date of his appointment to the Board.

ITEM 7.01. REGULATION FD DISCLOSURE

On July 23, 2012, the Company issued a press release announcing the appointment of Dr. Botstein to the Board. A copy of the press release is included as Exhibit
99.1. This information is intended to be furnished under Item 7.01 of Form 8-K and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS

(d) Exhibits

Exhibit
  No.                                     Description

99.1         Press release dated July 23, 2012 titled "Pacific Biosciences Names
             David Botstein, Ph.D. to its Board of Directors" (furnished and not
             filed herewith solely pursuant to Item 7.01).