# EDGAR Filing Document

**Accession Number:** 0001299130
**File Stem:** 0001299130-26-000046
**Filing Date:** 2026-3
**Character Count:** 13592
**Document Hash:** 6643311bc37c6599835da7351dbe9e73
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001299130-26-000046.hdr.sgml**: 20260305

**ACCESSION NUMBER**: 0001299130-26-000046

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 13

**CONFORMED PERIOD OF REPORT**: 20260303

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**ITEM INFORMATION**: Regulation FD Disclosure

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260305

**DATE AS OF CHANGE**: 20260305

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PACIFIC BIOSCIENCES OF CALIFORNIA, INC.
- **CENTRAL INDEX KEY:** 0001299130
- **STANDARD INDUSTRIAL CLASSIFICATION:** LABORATORY ANALYTICAL INSTRUMENTS [3826]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 161590339
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-34899
- **FILM NUMBER:** 26724294

**BUSINESS ADDRESS:**
- **STREET 1:** 1305 O'BRIEN DRIVE
- **CITY:** MENLO PARK
- **STATE:** CA
- **ZIP:** 94025
- **BUSINESS PHONE:** 650-521-8000

**MAIL ADDRESS:**
- **STREET 1:** 1305 O'BRIEN DRIVE
- **CITY:** MENLO PARK
- **STATE:** CA
- **ZIP:** 94025

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PACIFIC BIOSCIENCES OF CALIFORNIA INC
- **DATE OF NAME CHANGE:** 20050829

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NANOFLUIDICS INC
- **DATE OF NAME CHANGE:** 20040729

?xml version='1.0' encoding='ASCII'? pacb-20260303

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, DC 20549**

**FORM 8-K**

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d) of**

**The Securities Exchange Act of 1934**

**Date of Report (Date of earliest event reported)**

**March 3, 2026**

**Pacific Biosciences of California, Inc.**

**(Exact name of registrant as specified in its charter)**

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| | | |
|:---|:---|:---|
| **Delaware** | **001-34899** | **16-1590339** |
| **(State or other jurisdiction<br>of incorporation)** | **(Commission<br>File Number)** | **(IRS Employer<br>Identification No.)** |

---

**1305 O'Brien Drive** 

**Menlo Park, California 94025** 

**(Address of principal executive offices) (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 below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

□ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

□ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

□ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

□ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| **Common Stock, par value $0.001 per share** | **PACB** | **The NASDAQ Stock Market LLC** |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company □

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. □

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

On March 3, 2026 (the "Effective Date"), the Board of Directors (the "Board") of Pacific Biosciences of California, Inc. (the "Company"), upon the recommendation of its Corporate Governance and Nominating Committee, increased the size of the Board to ten directors and appointed Christopher Gibson, Ph.D. to serve as a Class I director effective as of the Effective Date, with an initial term expiring at the Company's 2026 annual meeting of stockholders. As of the Effective Date, the Board also appointed Dr. Gibson as a member of the Company's Science and Technology Committee.

There are no arrangements or understandings between Dr. Gibson, on the one hand, and the Company or any other persons, on the other hand, pursuant to which Dr. Gibson was selected as a director. There are no related party transactions between the Company and Dr. Gibson (or any of his immediate family members) requiring disclosure under Item 404(a) of Regulation S-K. Dr. Gibson does not have any family relationships with any of the Company's directors or executive officers. Dr. Gibson will participate in the Company's non-employee director compensation policy, as described in the Company's definitive proxy statement filed with the Securities and Exchange Commission on April 23, 2025. In addition, the Company will enter into its standard form of indemnification agreement with Dr. Gibson.

**ITEM 7.01.&nbsp;&nbsp;&nbsp;&nbsp;REGULATION FD DISCLOSURE.**

On March 5, 2026, the Company issued a press release relating to the appointment of Dr. Gibson, a copy of which is furnished herewith as Exhibit 99.1 and incorporated herein by reference.

The information furnished in this Item 7.01 and Exhibit 99.1 attached hereto 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.&nbsp;&nbsp;&nbsp;&nbsp;FINANCIAL STATEMENTS AND EXHIBITS.**

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| | |
|:---|:---|
| (d) | Exhibits. |
| 99.1 | <u>[Press Release, dated March](pacb-ex991xchrisgibsonboar.htm)[5](pacb-ex991xchrisgibsonboar.htm)[, 2026](pacb-ex991xchrisgibsonboar.htm)</u> |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

---

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**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.

---

| | | |
|:---|:---|:---|
| | **Pacific Biosciences of California, Inc.** | **Pacific Biosciences of California, Inc.** |
| | By: | /s/ Brett Atkins |
| | | **Brett Atkins** |
| | | **General Counsel** |
| Date: March 5, 2026 |  |  |

---

## Exhibit 99.1

**Exhibit 99.1**

**PacBio Announces the Appointment of Chris Gibson to the Board of Directors**

*Proven experience in leveraging AI in biology will strengthen the board of directors as PacBio develops data tools to maximize the power of HiFi sequencing* 

<br>**MENLO PARK, Calif., March 5, 2026** — PacBio (NASDAQ: PACB), a leading provider of high-quality, long-read sequencing technologies, today announced the appointment of Christopher Gibson, Ph.D., to PacBio's Board of Directors.

Dr. Gibson is the co-founder and Chairman of the Board of Directors of Recursion (NASDAQ: RXRX), a clinical-stage biotechnology company that has built one of the industry's most advanced AI-driven drug discovery platforms. Under his leadership, Recursion integrated large-scale biological data generation with machine learning to industrialize the discovery process, building a vertically integrated technology stack spanning automation, high-dimensional biology, and artificial intelligence. He led the company from inception through significant capital formation, strategic partnerships, and a successful public listing, establishing Recursion as a leader at the intersection of computation and biology.

"Dr. Gibson has demonstrated how AI, automation, and high-dimensional biological data can be combined to transform scientific discovery," said Christian Henry, Chief Executive Officer of PacBio. "As HiFi sequencing datasets grow in scale, the ability to leverage the full power of the HiFi genome through advanced analytics is becoming increasingly strategic. Dr. Gibson's experience building and scaling an AI-native life sciences company will directly support our long-term vision of integrating sequencing, computation, and data-driven discovery."

At Recursion, Dr. Gibson oversaw the development of a proprietary data platform capable of generating and analyzing massive multimodal datasets spanning drug discovery, translation, clinical and electronic health records (EHR), enabling the training of machine learning models to map complex biological relationships and accelerate clinical development and patient selection. He and his team built an organization designed around computational biology, software engineering, automation, and scalable infrastructure, positioning the company at the forefront of AI-enabled therapeutics development.

"I am honored to join PacBio's Board of Directors," said Dr. Gibson. "Biology is extraordinarily complex, and to make progress in diagnosing and treating disease we must accelerate our ability to decode that complexity. I believe that PacBio's high-quality, long-read sequencing generates the richest biological datasets in the industry, and that algorithmic approaches based on the best data will determine the winners in the rapidly accelerating world of healthcare. The convergence of advanced sequencing technologies and AI-driven analytics represents a major opportunity to accelerate discovery, development, and diagnostics by unlocking new biological insight. I look forward to working with PacBio's Board of Directors and leadership team to help realize that potential."

**About PacBio**

PacBio (NASDAQ: PACB) is a premier life science technology company that designs, develops, and manufactures advanced sequencing solutions to help scientists and clinical researchers resolve genetically complex problems. Our products and technologies, which include our HiFi long-read sequencing, address solutions across a broad set of research applications including human germline sequencing, plant and animal sciences, infectious disease and microbiology, oncology, and other emerging applications. For more information, please visit www.pacb.com and follow @PacBio.

PacBio products are provided for Research Use Only. Not for use in diagnostic procedures.

**Forward-Looking Statements** 

This press release may contain "forward-looking statements" within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and the U.S. Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact are forward-looking statements, including statements relating to: strengthening PacBio's Board of Directors; development of data tools to maximize the power of HiFi sequencing; the strategic nature of the ability to leverage the full power of the HiFi genome through advanced analytics as HiFi

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sequencing datasets grow in scale; Dr. Gibson's experience building and scaling an AI-native life sciences company directly supporting PacBio's long-term vision of integrating sequencing, computation and data-driven discovery; the need to accelerate PacBio's ability to decode biological complexity to make progress in diagnosing and treating disease; determining winners based on data-driven algorithmic approaches in the rapidly accelerating world of healthcare; and unlocking biological insights from the convergence of advanced sequencing technologies and AI-driven analytics, which creates a major opportunity to accelerate discovery, development and diagnostics and Dr. Gibson's ability to help realize this potential. You should not place undue reliance on forward-looking statements because they are subject to assumptions, risks, and uncertainties and could cause actual outcomes and results to differ materially from currently anticipated results, including, challenges inherent in sequencing a large number of genomes to generate large data sets; the difficulty of generating discoveries in new areas of research; potential product performance and quality issues; rapidly changing technologies and extensive competition in, and potential FDA regulatory issues relating to, genomic sequencing; unanticipated increases in costs or expenses; interruptions or delays in the supply of components or materials for, or manufacturing of, PacBio products and products under development; third-party claims alleging infringement of patents and proprietary rights or seeking to invalidate PacBio's patents or proprietary rights, among others. Additional factors that could materially affect actual results can be found in PacBio's most recent filings with the Securities and Exchange Commission, including PacBio's most recent reports on Forms 8-K, 10-K, and 10-Q, and include those listed under the caption "Risk Factors." These forward-looking statements are based on current expectations and speak only as of the date hereof; except as required by law, PacBio disclaims any obligation to revise or update these forward-looking statements to reflect events or circumstances in the future, even if new information becomes available.

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