GATEWAY INVESTMENT ADVISERS LLC

Position in MKSI — Mks Inc

CIK 1114618 CINCINNATI, OH

Position in MKSI

as of Jun 30, 2026 · filed Jul 20, 2026 Compact

Position Value

$1,329,062

+$812,909 QoQ

Shares Held

2,988

+33.0% QoQ

Ownership

0.004%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

#390

of 773 holders

Holding Since

Mar 2026

2 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

GATEWAY INVESTMENT ADVISERS LLC holds $40,110,014 across 5 Scientific & Technical Instruments names. MKSI ranks #2 (3.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	COHR	Coherent Corp.	95,206	$37,555,910
2	MKSI	Mks Inc This page	2,988	$1,329,062
3	KEYS	Keysight Technologies, Inc.	1,419	$496,749
4	GRMN	Garmin Ltd	1,958	$465,103
5	ST	Sensata Technologies Holding plc	5,513	$263,190

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$1,329,062	2,988	+33.0%	Shares	Sole	2026-07-20
2026-03-31	$516,153	2,246	—	Shares	Sole	2026-04-13
No filing history on record for this holder in this stock.