GABELLI FUNDS LLC

Position in MKSI — Mks Inc

CIK 1081407 Rye, NY

Position in MKSI

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$10,814,398

+$3,299,644 QoQ

Shares Held

47,058

+0.1% QoQ

Ownership

0.070%

of shares outstanding

% of Portfolio

0.08%

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

GABELLI FUNDS LLC holds $33,591,590 across 6 Scientific & Technical Instruments names. MKSI ranks #2 (32.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BMI	Badger Meter Inc	103,194	$15,721,605
2	MKSI	Mks Inc This page	47,058	$10,814,398
3	MLAB	Mesa Laboratories Inc /Co/	62,499	$5,526,161
4	KEYS	Keysight Technologies, Inc.	3,500	$988,295
5	VNT	Vontier Corp	8,715	$309,121
6	GRMN	Garmin Ltd	1,000	$232,010

24 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$10,814,398	47,058	+0.1%	Shares	Sole	2026-05-14
2025-12-31	$7,514,754	47,026	+1.5%	Shares	Sole	2026-02-05
2025-09-30	$5,733,769	46,326	+2.2%	Shares	Sole	2025-11-12
2025-06-30	$4,503,591	45,326	+21.2%	Shares	Sole	2025-08-13
2025-03-31	$2,996,487	37,386	+16.5%	Shares	Sole	2025-05-14
2024-12-31	$3,349,457	32,086	0.0%	Shares	Sole	2025-02-13
2024-09-30	$3,488,069	32,086	-0.9%	Shares	Sole	2024-11-13
2024-06-30	$4,228,963	32,386	-5.3%	Shares	Sole	2024-08-13
2024-03-31	$4,546,738	34,186	0.0%	Shares	Sole	2024-05-14
2023-12-31	$3,516,713	34,186	-0.3%	Shares	Sole	2024-02-13
2023-09-30	$2,968,322	34,300	-4.2%	Shares	Sole	2023-11-08
2023-06-30	$3,869,980	35,800	+7.5%	Shares	Sole	2023-08-10
2023-03-31	$2,951,046	33,300	-1.9%	Shares	Sole	2023-05-12
2022-12-31	$2,877,430	33,960	+29.3%	Shares	Sole	2023-02-13
2022-09-30	$2,170,126	26,260	+31.3%	Shares	Sole	2022-11-14
2022-06-30	$2,052,600	20,000	+11.1%	Shares	Sole	2022-08-12
2022-03-31	$2,700,000	18,000	0.0%	Shares	Sole	2022-05-18
2021-09-30	$2,716,380	18,000	0.0%	Shares	Sole	2021-11-12
2021-06-30	$3,203,100	18,000	-2.7%	Shares	Sole	2021-08-13
2021-03-31	$3,430,270	18,500	+42.3%	Shares	Sole	2021-05-14
2020-12-31	$1,955,850	13,000	-7.1%	Shares	Sole	2021-02-05
2020-09-30	$1,529,220	14,000	0.0%	Shares	Sole	2020-11-06
2020-06-30	$1,585,360	14,000	-22.2%	Shares	Sole	2020-08-13
2020-03-31	$1,466,100	18,000	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.