Artisan Partners group (TWST) discloses 4.8M-share position in Twist Bioscience

Rhea-AI Filing Summary

Artisan Partners Asset Management Inc., together with affiliated entities, reports beneficial ownership of 4,802,017 common shares of Twist Bioscience Corporation. This represents 7.7% of the common shares outstanding, based on 62,271,314 shares outstanding as of April 29, 2026.

The group reports shared voting power over 4,215,805 shares and shared dispositive power over all 4,802,017 shares, with no sole voting or dispositive power. The shares are held on behalf of discretionary clients of Artisan Partners Limited Partnership, which is a registered investment adviser; those clients receive all dividends and sale proceeds, and none is known to hold more than 5% of the class.

Key Figures

Shares beneficially owned: 4,802,017 shares Percent of class: 7.7% Shares outstanding: 62,271,314 shares +2 more

5 metrics

Shares beneficially owned 4,802,017 shares Common shares of Twist Bioscience beneficially owned by Artisan group

Percent of class 7.7% Portion of Twist Bioscience common shares represented by 4,802,017 shares

Shares outstanding 62,271,314 shares Twist Bioscience shares outstanding as of 04/29/2026 used for ownership calculation

Shared voting power 4,215,805 shares Shares over which the Artisan group has shared power to vote

Shared dispositive power 4,802,017 shares Shares over which the Artisan group has shared power to dispose

Key Terms

beneficially owned, shared voting power, shared dispositive power, Investment Advisers Act of 1940, +1 more

5 terms

beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 4,802,017"

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.

shared voting power financial

"(ii) Shared power to vote or to direct the vote: 4,215,805"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"(iv) Shared power to dispose or to direct the disposition of: 4,802,017"

Investment Advisers Act of 1940 regulatory

"an investment adviser registered under section 203 of the Investment Advisers Act of 1940"

A U.S. federal law that sets rules for people and firms who give investment advice, requiring them to register with regulators, be honest about conflicts, keep records, and follow basic standards of care. It matters to investors because those rules act like licensing and consumer protections — similar to having safety standards for a mechanic — helping ensure advisers act in clients’ financial interests and reducing the risk of fraud or misuse of funds.

discretionary clients financial

"The shares reported herein have been acquired on behalf of discretionary clients of APLP."

FAQ

What percentage of Twist Bioscience (TWST) does Artisan Partners report owning?

Artisan Partners and affiliates report beneficial ownership of 7.7% of Twist Bioscience’s common shares, based on 62,271,314 shares outstanding as of April 29, 2026. This reflects a sizable institutional stake disclosed in the Schedule 13G/A filing.

How many Twist Bioscience (TWST) shares are beneficially owned by Artisan Partners?

Artisan Partners and its related entities report beneficial ownership of 4,802,017 Twist Bioscience common shares. These shares are held for discretionary clients of Artisan Partners Limited Partnership, which is an investment adviser registered under the Investment Advisers Act of 1940.

What voting power does Artisan Partners have over Twist Bioscience (TWST) shares?

Artisan Partners reports shared voting power over 4,215,805 Twist Bioscience shares and no sole voting power. Voting and dispositive authority are exercised on behalf of its advisory clients consistent with its role as investment adviser.

Who ultimately benefits from the Twist Bioscience (TWST) shares held by Artisan Partners?

The discretionary clients of Artisan Partners Limited Partnership are entitled to all dividends and sale proceeds from the reported Twist Bioscience shares. To the filers’ knowledge, none of these clients has an economic interest exceeding 5% of the class.

Which Artisan entities are included in the Twist Bioscience (TWST) Schedule 13G/A?

The filing is made jointly by Artisan Partners Asset Management Inc., Artisan Partners Holdings LP, Artisan Investments GP LLC, and Artisan Partners Limited Partnership, all organized in Delaware and party to a joint filing agreement dated August 13, 2026.

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Available on EDGAR 08/13/2026 - 04:31 PM Accepted by SEC EDGAR 08/13/2026 - 04:30 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. 6)

Twist Bioscience Corporation

(Name of Issuer)

Common Shares

(Title of Class of Securities)

90184D100

(CUSIP Number)

06/30/2026

(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

Artisan Partners Asset Management Inc.

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 0.00
6	Shared Voting Power 4,215,805.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 4,802,017.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,802,017.00

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)

7.7 %

12

Type of Reporting Person (See Instructions)

HC

Comment for Type of Reporting Person: (g) Artisan Partners Holdings LP is the sole limited partner of Artisan Partners Limited Partnership and the sole member of Artisan Investments GP LLC; Artisan Investments GP LLC is the general partner of Artisan Partners Limited Partnership; Artisan Partners Asset Management Inc. is the general partner of Artisan Partners Holdings LP.

SCHEDULE 13G

CUSIP Number(s): 90184D100

1

Names of Reporting Persons

Artisan Partners Holdings LP

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 0.00
6	Shared Voting Power 4,215,805.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 4,802,017.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,802,017.00

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)

7.7 %

12

Type of Reporting Person (See Instructions)

HC

Comment for Type of Reporting Person: (g) Artisan Partners Holdings LP is the sole limited partner of Artisan Partners Limited Partnership and the sole member of Artisan Investments GP LLC; Artisan Investments GP LLC is the general partner of Artisan Partners Limited Partnership; Artisan Partners Asset Management Inc. is the general partner of Artisan Partners Holdings LP.

SCHEDULE 13G

CUSIP Number(s): 90184D100

1

Names of Reporting Persons

Artisan Investments GP 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 0.00
6	Shared Voting Power 4,215,805.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 4,802,017.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,802,017.00

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)

7.7 %

12

Type of Reporting Person (See Instructions)

HC

Comment for Type of Reporting Person: (g) Artisan Partners Holdings LP is the sole limited partner of Artisan Partners Limited Partnership and the sole member of Artisan Investments GP LLC; Artisan Investments GP LLC is the general partner of Artisan Partners Limited Partnership; Artisan Partners Asset Management Inc. is the general partner of Artisan Partners Holdings LP.

SCHEDULE 13G

CUSIP Number(s): 90184D100

1

Names of Reporting Persons

Artisan Partners Limited Partnership

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 0.00
6	Shared Voting Power 4,215,805.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 4,802,017.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,802,017.00

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)

7.7 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: (e) Artisan Partners Limited Partnership is an investment adviser registered under section 203 of the Investment Advisers Act of 1940. (g) Artisan Partners Holdings LP is the sole limited partner of Artisan Partners Limited Partnership and the sole member of Artisan Investments GP LLC; Artisan Investments GP LLC is the general partner of Artisan Partners Limited Partnership; Artisan Partners Asset Management Inc. is the general partner of Artisan Partners Holdings LP.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Twist Bioscience Corporation
(b)	Address of issuer's principal executive offices: 681 Gateway Blvd, South San Francisco, CA 94080
Item 2.
(a)	Name of person filing: Artisan Partners Asset Management Inc. ("APAM") Artisan Partners Holdings LP ("Artisan Holdings") Artisan Investments GP LLC ("Artisan Investments") Artisan Partners Limited Partnership ("APLP")
(b)	Address or principal business office or, if none, residence: APAM, Artisan Holdings, Artisan Investments, and APLP are all located at: 875 East Wisconsin Avenue, Suite 800 Milwaukee, WI 53202
(c)	Citizenship: APAM is a Delaware corporation; Artisan Holdings is a Delaware limited partnership; Artisan Investments is a Delaware limited liability company; APLP is a Delaware limited partnership
(d)	Title of class of securities: Common Shares
(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: 4,802,017
(b)	Percent of class: 7.7% (based on 62,271,314 shares outstanding as of 04/29/2026)
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: None
	(ii) Shared power to vote or to direct the vote: 4,215,805
	(iii) Sole power to dispose or to direct the disposition of: None
	(iv) Shared power to dispose or to direct the disposition of: 4,802,017
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. The shares reported herein have been acquired on behalf of discretionary clients of APLP. Persons other than APLP are entitled to receive all dividends from, and proceeds from the sale of, those shares. None of those persons, to the knowledge of APAM, Artisan Holdings, Artisan Investments, or APLP has an economic interest in more than 5% of the class.
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.

Artisan Partners Asset Management Inc.

Signature:	/s/ Gregory K. Ramirez
Name/Title:	Gregory K. Ramirez, Executive Vice President of Artisan Partners Asset Management Inc.
Date:	08/13/2026

Artisan Partners Holdings LP

Signature:	/s/ Gregory K. Ramirez
Name/Title:	Gregory K. Ramirez, Executive Vice President of Artisan Partners Asset Management Inc., as the general partner of Artisan Partners Holdings LP
Date:	08/13/2026

Artisan Investments GP LLC

Signature:	/s/ Gregory K. Ramirez
Name/Title:	Gregory K. Ramirez, Vice President of Artisan Investments GP LLC
Date:	08/13/2026

Artisan Partners Limited Partnership

Signature:	/s/ Gregory K. Ramirez
Name/Title:	Gregory K. Ramirez, Vice President of Artisan Investments GP LLC, as the general partner of Artisan Partners Limited Partnership
Date:	08/13/2026

Exhibit Information

Exhibit Index Exhibit 1 - Joint Filing Agreement dated 08/13/2026 by and among Artisan Partners Asset Management Inc., Artisan Partners Holdings LP, Artisan Investments GP LLC, and Artisan Partners Limited Partnership.