Company: PACB
Filing Date: 2025-04-23
Form Type: DEF 14A
Source: 0001299130-25-000090
Chunk: 9

Company: PACIFIC BIOSCIENCES OF CALIFORNIA, INC.
Filing Date: 2025-04-23
Form: DEF 14A
Chunk 9
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 If any matters not described in this Proxy Statement are properly presented at the Annual Meeting, the proxy holders will use their own judgment to determine how to vote the shares. If the Annual Meeting is adjourned, the proxy holders can vote the shares on the new Annual Meeting date as well, unless you have properly revoked your proxy instructions, as described above.

How may my brokerage firm or other intermediary vote my shares if I fail to provide timely directions?

Brokerage firms and other intermediaries holding shares of our common stock in street name for their customers are generally required to vote such shares in the manner directed by their customers. In the absence of timely directions, your broker will have discretion to vote your shares on our one “routine” matter: the proposal to ratify the appointment of Ernst & Young LLP as our independent registered public accounting firm for our fiscal year ending December 31, 2025. Your broker will not have discretion to vote on any other proposals, which are “non-routine” matters, absent direction from you.

What constitutes a quorum, and why is a quorum required?

We need a quorum of stockholders to hold our Annual Meeting. A quorum exists when at least a majority of the voting power of the outstanding shares entitled to vote as of 5:00 p.m. Pacific Time on the Record Date are represented at the Annual Meeting either remotely or by proxy. As of 5:00 p.m. Pacific Time on April 10, 2025 we had 300,041,319 shares of common stock outstanding and entitled to vote at the Annual Meeting.

Your shares will be counted towards the quorum if you submit a proxy or vote at the Annual Meeting. Abstentions and broker non-votes will also count towards the quorum requirement. If there is not a quorum, then either (i) the chairperson of the meeting or (ii) the stockholders entitled to vote at the Annual Meeting represented at the Annual Meeting either remotely or by proxy may adjourn the meeting to a later date.

Additionally, pursuant to the Company’s bylaws, the chairperson of the meeting has the power to adjourn the meeting to another place, if any, date or time, whether or not a quorum is present and without a vote of stockholders.

| 2025 Proxy Statement |     | 5 |

TABLE OF CONTENTS

#### What is the vote required for each proposal?
| Proposal                                                                                                               |     | Vote Required                                                                                                                   |     | Broker         
 Discretionary