[SCHEDULE 13G/A] MKS Inc. SEC Filing

Rhea-AI Filing Summary

Filing type: Amendment (Schedule 13G/A) reporting beneficial ownership of MKS Inc (CUSIP 55306N104).

Key facts:

• Reporting person: Victory Capital Management, Inc. (Type: IA; citizenship: New York).
• Aggregate beneficially owned: 3,787,201 shares, representing 5.64% of MKS Inc common stock (event date: 06/30/2025).
• Sole voting power: 3,711,418 shares; shared voting power: 0.
• Sole dispositive power: 3,787,201 shares; shared dispositive power: 0.
• Issuer address: 2 Tech Dr, Andover, MA 01810-2434.
• Signature: Barry Garrett, Chief Compliance Officer (date: 08/08/2025); comment: Amendment to update Sole Voting Power.

Certifications: The filer attests the securities are held in the ordinary course of business and not to influence control of the issuer.

Positive

• Disclosure of material ownership: Victory Capital reports 3,787,201 shares (5.64%) of MKSI, satisfying SEC transparency requirements.
• Clear voting/dispositive figures: Filing specifies 3,711,418 sole voting power and 3,787,201 sole dispositive power.
• Certification of ordinary-course holdings: Item 10 states the securities are not held to influence control of the issuer.

Negative

• None.

Insights

Securities Analyst

TL;DR: Victory Capital reports a 5.64% stake in MKS Inc with sole voting and dispositive powers; filing corrects voting-power figures.

This Schedule 13G/A discloses that Victory Capital Management, Inc. beneficially owns 3,787,201 shares of MKS Inc (5.64% of class) as of the 06/30/2025 event date. The filing specifies 3,711,418 shares of sole voting power and 3,787,201 shares of sole dispositive power. The amendment note indicates the purpose of this filing was to update sole voting power. The filer classifies itself as an investment adviser (IA) and certifies holdings are in the ordinary course of business and not to influence control. These facts are relevant for ownership disclosure and monitoring but do not state any transaction intent.

Corporate Governance Expert

TL;DR: Amendment documents significant passive ownership and corrects voting-power reporting; governance implications should be tracked via subsequent filings.

The report confirms Victory Capital holds a >5% position (5.64%) in MKS Inc, with explicit sole voting and dispositive powers and no shared powers. The signatory, Chief Compliance Officer Barry Garrett, attests the securities are not held to change control. The amendment explicitly updates sole voting power, indicating a prior reporting discrepancy has been corrected. For governance monitoring, investors should note the disclosed quantities and the certification language provided in Item 10.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

MKS Inc

(Name of Issuer)

Common Stock

(Title of Class of Securities)

55306N104

(CUSIP Number)

06/30/2025

(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. 55306N104

1

Names of Reporting Persons

Victory Capital 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

NEW YORK

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 3,711,418.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 3,787,201.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,787,201.00

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)

5.64 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: MKS Inc
(b)	Address of issuer's principal executive offices: 2 Tech DR Andover, Ma 01810-2434
Item 2.
(a)	Name of person filing: Victory Capital Management, Inc.
(b)	Address or principal business office or, if none, residence: 15935 La Cantera Pkwy San Antonio, TX 78256
(c)	Citizenship: New York
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 55306N104
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: 3,787,201
(b)	Percent of class: 5.64 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 3,711,418
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 3,787,201
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
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. By signing below I certify that, to the best of my knowledge and belief, the foreign regulatory scheme applicable to Victory Capital Management, Inc. is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institution(s). I also undertake to furnish to the Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D. By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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.

Victory Capital Management, Inc.

Signature:	Barry Garrett
Name/Title:	Chief Compliance Officer
Date:	08/08/2025

Comments accompanying signature: Amendment to update Sole Voting Power

FAQ

What percentage of MKS Inc (MKSI) does Victory Capital own according to this filing?

Victory Capital Management, Inc. beneficially owns 3,787,201 shares, representing 5.64% of MKS Inc common stock (event date: 06/30/2025).

How many shares does Victory Capital have voting power over for MKSI?

The filing reports 3,711,418 shares as sole voting power and 0 shares as shared voting power.

Who signed the Schedule 13G/A for Victory Capital and when?

The filing is signed by Barry Garrett, Chief Compliance Officer on 08/08/2025.

Does Victory Capital claim it acquired MKSI shares to influence control?

No. Item 10 contains a certification that the securities are held in the ordinary course of business and were not acquired to change or influence control of the issuer.

What change does the amendment note indicate?

Comments accompanying the signature state: Amendment to update Sole Voting Power.