Initial Statement of Beneficial Ownership (3)

POWER OF ATTORNEY

 

The undersigned, as a Section 16 reporting person of Pacific Biosciences of

California, Inc. (the "Company"), hereby constitutes and appoints Susan K. Barnes,  Brian Dow and Stephen Moore, and each of them, the undersigned's true and lawful attorney-in-fact to:

 

1. complete and execute Forms 3, 4 and 5 and other forms and all amendments

thereto as such attorney-in-fact shall in his or her discretion determine

to be required or advisable pursuant to Section 16 of the Securities Exchange

Act of 1934 (as amended) and the rules and regulations promulgated thereunder,or any successor laws and regulations, as a consequence of the undersigned's  ownership, acquisition or disposition of securities of the Company; and

 

2. do all acts necessary in order to file such forms with the U.S. Securities

and Exchange Commission, any securities exchange or national association,

the Company and such other person or agency as the attorney-in-fact shall

deem appropriate.

 

  The undersigned hereby ratifies and confirms all that said

attorneys-in-fact and agents shall do or cause to be done by virtue hereof.

The undersigned acknowledges that the foregoing attorneys-in-fact, in serving

in such capacity at the request of the undersigned, are not assuming, nor is

the Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934 (as amended).

 

  This Power of Attorney shall remain in full force and effect until the

undersigned is no longer required to file Forms ID, 3, 4 and 5 with respect

to the undersigned's holdings of and transactions in securities issued by

the Company, unless earlier revoked by the undersigned in a signed writing

delivered to the Company and the foregoing attorneys-in-fact.

 

  IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney

to be executed as of this 15th day of December, 2014.

 

 

Signature: /s/ Kathy Ordonez

Name: Kathy Ordonez

 

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