Cathie Wood’s ARK discloses 12.34% ownership of Pacific Biosciences (PACB)

Rhea-AI Filing Summary

ARK Investment Management LLC and Catherine D. Wood report significant ownership in Pacific Biosciences of California, Inc. They disclose beneficial ownership of 37,264,228 shares of the company’s common stock, representing 12.34% of the class, based on an event date of December 31, 2025. ARK has sole voting power over 34,971,286 shares and shared voting power over 620,864 shares, while Wood has shared voting power over 35,592,150 shares. Both certify the holdings were acquired and are held in the ordinary course of business, not for changing or influencing control. ARK Innovation ETF is noted as a client with an interest exceeding 5%.

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Accepted by SEC EDGAR 02/03/2026 - 11:37 AM Learn about SEC filing dates

FAQ

What ownership in Pacific Biosciences (PACB) did ARK report?

ARK Investment Management LLC and Catherine D. Wood reported beneficial ownership of 37,264,228 shares of Pacific Biosciences common stock, representing 12.34% of the class. This reflects a sizeable institutional and insider-related position disclosed in a Schedule 13G/A amendment.

How are voting and dispositive powers over PACB shares allocated for ARK and Cathie Wood?

ARK reports sole voting power over 34,971,286 shares and shared voting power over 620,864 shares, with sole dispositive power over 37,264,228 shares. Catherine D. Wood reports shared voting power over 35,592,150 shares and shared dispositive power over 37,264,228 shares.

What does ARK state about its intent regarding control of Pacific Biosciences (PACB)?

ARK and Catherine D. Wood certify the PACB securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer. They also state the holdings are not in connection with a control-related transaction.

Which ARK client holds more than 5% of Pacific Biosciences (PACB)?

The filing notes that no ARK client has an interest in the reported PACB securities above 5% except ARK Innovation ETF, a series of a Delaware statutory trust. This ETF is specifically identified as exceeding the 5% interest threshold.

Who are the reporting persons in this Schedule 13G/A for Pacific Biosciences (PACB)?

The reporting persons are ARK Investment Management LLC, organized in Delaware, and Catherine D. Wood, a United States citizen. Both are listed with a principal business address at 200 Central Avenue, St. Petersburg, Florida 33701.

What key date is associated with ARK’s PACB ownership disclosure?

The Schedule 13G/A identifies December 31, 2025 as the date of event that triggered the filing requirement. This date anchors the reported ownership levels and percentage of Pacific Biosciences’ common stock.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 6)

Pacific Biosciences of California, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

69404D108

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 69404D108

1

Names of Reporting Persons

ARK Investment Management LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 34,971,286.00
6	Shared Voting Power 620,864.00
7	Sole Dispositive Power 37,264,228.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

37,264,228.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

12.34 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP No. 69404D108

1

Names of Reporting Persons

Catherine D. Wood

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 35,592,150.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 37,264,228.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

37,264,228.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

12.34 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Pacific Biosciences of California, Inc.
(b)	Address of issuer's principal executive offices: 1305 O'Brien Drive, Menlo Park, CA, 94025
Item 2.
(a)	Name of person filing: (i) ARK Investment Management LLC ("ARK") (ii) Catherine D. Wood
(b)	Address or principal business office or, if none, residence: ARK and Catherine D. Wood: 200 Central Avenue, St. Petersburg, FL 33701
(c)	Citizenship: (i) ARK: Delaware (ii) Catherine D. Wood: United States
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 69404D108
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: ARK and Catherine D. Wood: 37,264,228
(b)	Percent of class: ARK and Catherine D. Wood: 12.34
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: (i) ARK: 34,971,286 (ii) Catherine D. Wood: 0
	(ii) Shared power to vote or to direct the vote: (i) ARK: 620,864 (ii) Catherine D. Wood: 35,592,150
	(iii) Sole power to dispose or to direct the disposition of: (i) ARK: 37,264,228 (ii) Catherine D. Wood: 0
	(iv) Shared power to dispose or to direct the disposition of: (i) ARK: 0 (ii) Catherine D. Wood: 37,264,228
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. No client of ARK Investment Management LLC currently has an interest in the securities reported herein in excess of 5 percent except ARK Innovation ETF, a series of a Delaware statutory trust.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

ARK Investment Management LLC

Signature:	/s/ Kellen Carter
Name/Title:	Kellen Carter, Chief Compliance Officer
Date:	02/03/2026

Catherine D. Wood

Signature:	/s/ Catherine D. Wood
Name/Title:	Catherine D. Wood, Chief Executive Officer, Chief Investment Officer
Date:	02/03/2026