NEEDHAM INVESTMENT MANAGEMENT LLC

Position in MKSI — Mks Inc

CIK 1167212 NEW YORK, NY

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Position in MKSI

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$49,928,800

+$22,351,601 QoQ

Shares Held

112,250

-6.5% QoQ

Ownership

0.166%

of shares outstanding

% of Portfolio

1.50%

of 13F equity value

Holder Rank

#92

of 773 holders

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in MKSI Over Time

Shares Held

Position Value (USD)

Position in Scientific & Technical Instruments

Technology · as of Jun 30, 2026

NEEDHAM INVESTMENT MANAGEMENT LLC holds $210,257,125 across 5 Scientific & Technical Instruments names. MKSI ranks #2 (23.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VPG	Vishay Precision Group, Inc.	599,000	$89,796,090
2	MKSI	Mks Inc This page	112,250	$49,928,800
3	COHR	Coherent Corp.	92,500	$36,488,475
4	BMI	Badger Meter Inc	145,000	$21,515,100
5	CGNX	Cognex Corp	173,000	$12,528,660

All Filings in MKSI

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$49,928,800	112,250	-6.5%	Shares	Defined	2026-08-14
2026-03-31	$27,577,199	120,000	-8.0%	Shares	Defined	2026-05-15
2025-12-31	$20,853,900	130,500	-0.2%	Shares	Sole	2026-02-17
2025-09-30	$16,182,927	130,750	+1.6%	Shares	Defined	2025-11-14
2025-06-30	$12,792,600	128,750	0.0%	Shares	Defined	2025-08-14
2025-03-31	$10,319,312	128,750	-0.2%	Shares	Defined	2025-05-15
2024-12-31	$13,466,310	129,000	+3.6%	Shares	Defined	2025-02-14
2024-09-30	$13,534,395	124,500	+1.2%	Shares	Defined	2024-11-14
2024-06-30	$16,061,340	123,000	-28.9%	Shares	Defined	2024-08-14
2024-03-31	$23,009,000	173,000	-7.5%	Shares	Defined	2024-05-15
2023-12-31	$19,236,690	187,000	+19.1%	Shares	Defined	2024-02-14
2023-09-30	$13,586,780	157,000	+29.8%	Shares	Defined	2023-11-14
2023-06-30	$13,080,100	121,000	-0.4%	Shares	Defined	2023-08-14
2023-03-31	$10,767,330	121,500	-12.9%	Shares	Defined	2023-05-15
2022-12-31	$11,819,835	139,500	+20.8%	Shares	Defined	2023-02-14
2022-09-30	$9,544,920	115,500	-24.5%	Shares	Defined	2022-11-14
2022-06-30	$15,702,390	153,000	+11.7%	Shares	Defined	2022-08-12
2022-03-31	$20,550,000	137,000	-11.6%	Shares	Defined	2022-05-16
2021-09-30	$23,391,050	155,000	+40.3%	Shares	Sole	2021-11-15
2021-06-30	$19,663,475	110,500	+2.3%	Shares	Defined	2021-08-16
2021-03-31	$20,025,360	108,000	+27.1%	Shares	Defined	2021-05-17
2020-12-31	$12,788,250	85,000	-0.6%	Shares	Defined	2021-02-16
2020-09-30	$9,339,165	85,500	0.0%	Shares	Defined	2021-02-25
2020-06-30	$9,682,020	85,500	-14.5%	Shares	Defined	2021-02-25
2020-03-31	$8,145,000	100,000	—	Shares	Defined	2020-05-15
No filing history on record for this holder in this stock.