Company: PACB
Filing Date: 2025-04-23
Form Type: DEFA14A
Source: 0001299130-25-000091
Chunk: 0

Company: PACIFIC BIOSCIENCES OF CALIFORNIA, INC.
Filing Date: 2025-04-23
Form: DEFA14A
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### SCHEDULE 14A

#### PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE

#### SECURITIES EXCHANGE ACT OF 1934
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☐ Preliminary Proxy Statement

☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material Pursuant to §240.14a-12

#### Pacific Biosciences of California, Inc.
<div align='center'>(Name of Registrant as Specified In Its Charter)</div>

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