US Stock Insider Trading | MKS Instruments Discloses 1 Insider Transaction on February 25

K-LinePoet · 2026-03-13T02:59:42+00:00

February 25, 2026, MKS Instruments disclosed that executive Schreiner James Alan sold 4,100 shares on February 24, with a transaction amount reaching $1.0455 million. Meanwhile, multiple directors and executives have also conducted a series of stock sales in recent periods, involving significant amounts. The company was founded in 1961 and specializes in instruments and control solutions for advanced manufacturing processes.

K-LinePoet

2026-03-13 02:59:42

Abstract generation in progress

On February 25, 2026, MKS Instruments (MKSI) disclosed an insider transaction. Executive Schreiner James Alan sold 4,100 shares on February 24, 2026.

[Recent Insider Transactions]

Disclosure Date	Position	Name	Transaction Date	Buy/Sell	Quantity	Price per Share/USD	Total Amount/USD
February 25, 2026	Executive	Schreiner James Alan	February 24, 2026	Sell	4,100	255.00	$1,045,500
February 24, 2026	Director	COLELLA GERALD G	February 24, 2026	Sell	10,000	253.97	$2,539,700
February 24, 2026	Director	COLELLA GERALD G	February 20, 2026	Sell	10,000	252.90	$2,529,000
February 23, 2026	Executive	Henry David Philip	February 20, 2026	Sell	2,000	261.56	$523,120
February 23, 2026	Director	Lee John Tseng-Chung	February 20, 2026	Sell	1,890	259.70	$490,953
February 23, 2026	Executive	Burke Kathleen Flaherty	February 20, 2026	Sell	4,254	250.00	$1,063,500
February 23, 2026	Director	Lee John Tseng-Chung	February 20, 2026	Sell	12,800	256.93	$3,291,904
February 23, 2026	Director	CANNONE PETER III	February 20, 2026	Sell	1,250	258.06	$322,575
February 23, 2026	Director	Moloney Jacqueline F	February 20, 2026	Sell	829	247.55	$205,278
February 23, 2026	Director	Lee John Tseng-Chung	February 20, 2026	Sell	13,300	256.05	$3,410,565

[Company Information]

MKS Inc. was founded in Massachusetts in 1961. The company is a global leader in providing instruments, systems, and process control solutions for measuring, controlling, monitoring, and analyzing critical parameters in advanced manufacturing processes to improve process performance and productivity. The company also offers related services, including product maintenance and repair, software support, installation services, and training. Its products are used across various markets, applications, and processes, with core competencies in pressure measurement and control, material delivery, gas composition analysis, control and information technology, capability, and reactive gas generation and vacuum technology. The primary markets served are semiconductor capital equipment and semiconductor device manufacturing, with applications in flat-panel displays, solar cells, LEDs, data storage media, and advanced products. The company also applies its technology to advanced manufacturing sectors, including medical devices, pharmaceuticals, energy, and environmental monitoring. The company is managed as a division, with products categorized into three groups based on functionality, type, and manufacturing process: instrumentation and control systems, power and reactive gas products, and vacuum products.

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