ARK reports 6.34M shares (10.35%) of Twist Bioscience

ARK Investment Management LLC and Catherine D. Wood filed an amended Schedule 13G/A reporting beneficial ownership of 6,342,733 shares of Twist Bioscience Corp common stock, representing 10.35% of the class.

Rhea-AI Filing Summary

ARK Investment Management LLC and Catherine D. Wood filed an amended Schedule 13G/A reporting beneficial ownership of 6,342,733 shares of Twist Bioscience Corp common stock, representing 10.35% of the class. ARK reports 5,952,949 shares as sole voting power and 6,342,733 as sole dispositive power; Ms. Wood reports 6,049,443 shares as shared voting power and 6,342,733 as shared dispositive power. The filing is signed and dated 04/30/2026.

Key Figures

Beneficial ownership: 6,342,733 shares Percent of class: 10.35% ARK sole voting power: 5,952,949 shares +4 more

7 metrics

Beneficial ownership 6,342,733 shares Amount beneficially owned reported on Schedule 13G/A

Percent of class 10.35% Percent of common stock outstanding reported

ARK sole voting power 5,952,949 shares Sole power to vote reported by ARK

ARK shared voting power 96,494 shares Shared power to vote reported by ARK

C. D. Wood shared voting power 6,049,443 shares Shared power to vote reported by Catherine D. Wood

Dispositive power (ARK) 6,342,733 shares Sole dispositive power reported by ARK

Filing signature date 04/30/2026 Date signatures by Kellen Carter and Catherine D. Wood were provided

Key Terms

Schedule 13G/A, Sole Voting Power, Shared Dispositive Power, Beneficially owned

4 terms

Schedule 13G/A regulatory

"Amendment No. 8 ) Tw ist Bioscience Corp Common Stock"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Sole Voting Power regulatory

"Sole Voting Power 5,952,949.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

Shared Dispositive Power regulatory

"Shared Dispositive Power 6,342,733.00"

Beneficially owned financial

"Amount beneficially owned: ARK and Catherine D. Wood: 6,342,733"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does ARK report in TWST?

ARK reports beneficial ownership of 6,342,733 shares, equal to 10.35% of Twist Bioscience common stock. The filing lists voting and dispositive power allocations for ARK and Catherine D. Wood and is dated 04/30/2026.

How much voting power does ARK hold in Twist Bioscience (TWST)?

ARK reports 5,952,949 shares as sole voting power and 96,494 shares as shared voting power. These figures are reported on the Schedule 13G/A signed 04/30/2026.

What voting and dispositive powers does Catherine D. Wood report for TWST?

Catherine D. Wood reports 6,049,443 shares as shared voting power and 6,342,733 shares as shared dispositive power. These allocations appear on the amended Schedule 13G/A dated 04/30/2026.

Does this filing identify any client holding over 5% for ARK?

The filing states no ARK client currently holds more than 5% except the ARK Innovation ETF, a series of a Delaware statutory trust. That client is identified in Item 6 of the filing.

When was the Schedule 13G/A for TWST signed?

The Schedule 13G/A amendment was signed by ARK and Catherine D. Wood on 04/30/2026. The filing header lists an event date of 03/31/2026 alongside the CUSIP 90184D100.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/30/2026 - 12:42 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 8)

Twist Bioscience Corp

(Name of Issuer)

Common Stock

(Title of Class of Securities)

90184D100

(CUSIP Number)

03/31/2026

(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)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 90184D100

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 5,952,949.00
6	Shared Voting Power 96,494.00
7	Sole Dispositive Power 6,342,733.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,342,733.00

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)

10.35 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 90184D100

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 6,049,443.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,342,733.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,342,733.00

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)

10.35 %

12

Type of Reporting Person (See Instructions)

HC, IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Twist Bioscience Corp
(b)	Address of issuer's principal executive offices: 681 Gateway Blvd, South San Francisco, CA 94080
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.: 90184D100
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: 6,342,733
(b)	Percent of class: ARK and Catherine D. Wood: 10.35
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: (i) ARK: 5,952,949 (ii) Catherine D. Wood: 0
	(ii) Shared power to vote or to direct the vote: (i) ARK: 96,494 (ii) Catherine D. Wood: 6,049,443
	(iii) Sole power to dispose or to direct the disposition of: (i) ARK: 6,342,733 (ii) Catherine D. Wood: 0
	(iv) Shared power to dispose or to direct the disposition of: (i) ARK: 0 (ii) Catherine D. Wood: 6,342,733
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:	04/30/2026

Catherine D. Wood

Signature:	/s/ Catherine D. Wood
Name/Title:	Catherine D. Wood, Chief Executive Officer, Chief Investment Officer
Date:	04/30/2026