SEI INVESTMENTS CO

Position in MKSI — Mks Inc

CIK 350894 OAKS, PA

Position in MKSI

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$23,259,987

+$3,115,920 QoQ

Shares Held

101,214

-19.7% QoQ

Ownership

0.150%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

24 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Technology · as of Mar 31, 2026

SEI INVESTMENTS CO holds $692,228,894 across 18 Scientific & Technical Instruments names. MKSI ranks #7 (3.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TDY	Teledyne Technologies Inc	414,989	$251,072,494
2	KEYS	Keysight Technologies, Inc.	315,961	$89,217,906
3	GRMN	Garmin Ltd	323,825	$75,130,637
4	NOVT	Novanta Inc	484,316	$57,202,562
5	ST	Sensata Technologies Holding plc	1,390,546	$48,975,029
6	FTV	Fortive Corp	671,708	$37,132,018
7	MKSI	Mks Inc This page	101,214	$23,259,987
8	ESE	Esco Technologies Inc	79,692	$22,422,937

24 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$23,259,987	101,214	-19.7%	Shares	Defined	2026-05-13
2025-12-31	$20,144,067	126,058	+12.4%	Shares	Defined	2026-02-13
2025-09-30	$13,883,280	112,170	+2.6%	Shares	Defined	2025-11-13
2025-06-30	$10,865,014	109,350	-24.6%	Shares	Defined	2025-08-14
2025-03-31	$11,630,004	145,103	-3.9%	Shares	Defined	2025-05-14
2024-12-31	$15,765,498	151,025	+32.1%	Shares	Defined	2025-02-11
2024-09-30	$12,425,986	114,304	+147.7%	Shares	Defined	2024-11-12
2024-06-30	$6,026,397	46,151	+1.9%	Shares	Sole	2024-08-13
2024-03-31	$6,021,442	45,274	-6.5%	Shares	Defined	2024-05-07
2023-12-31	$4,978,701	48,398	-10.1%	Shares	Sole	2024-02-14
2023-09-30	$4,657,581	53,820	+1.8%	Shares	Sole	2023-11-14
2023-06-30	$5,716,111	52,878	-9.3%	Shares	Sole	2023-08-11
2023-03-31	$5,165,747	58,291	-2.6%	Shares	Sole	2023-05-12
2022-12-31	$5,070,751	59,846	+75.3%	Shares	Sole	2023-02-10
2022-09-30	$2,821,246	34,139	-52.2%	Shares	Sole	2022-11-14
2022-06-30	$7,332,502	71,446	+30.1%	Shares	Sole	2022-08-15
2022-03-31	$8,235,000	54,900	-13.0%	Shares	Sole	2022-05-13
2021-09-30	$9,520,911	63,090	+9.6%	Shares	Sole	2021-11-12
2021-06-30	$10,241,911	57,555	-8.2%	Shares	Sole	2021-08-06
2021-03-31	$11,628,058	62,712	-17.9%	Shares	Defined	2021-05-12
2020-12-31	$11,492,724	76,389	-0.9%	Shares	Defined	2021-02-08
2020-09-30	$8,417,918	77,066	-15.8%	Shares	Sole	2020-12-04
2020-06-30	$10,369,839	91,574	+8.4%	Shares	Sole	2020-08-17
2020-03-31	$6,879,429	84,462	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.