MKS Instruments Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:MKSI Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
16 Aug 24	SellUS$213,678	John Williams	Individual	1,800	US$118.71
01 Mar 24	SellUS$910,738	Kathleen Burke	Individual	7,411	US$122.89
22 Feb 24	SellUS$4,051,629	Seth Bagshaw	Individual	32,865	US$124.56
16 Feb 24	SellUS$237,933	Jacqueline Moloney	Individual	1,917.27	US$124.10
07 Nov 23	BuyUS$170,862	David Henry	Individual	2,500	US$68.34

Insider Trading Volume

Insider Buying: MKSI insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of MKSI?
Owner Type	Number of Shares	Ownership Percentage
State or Government	62,544	0.091%
Individual Insiders	454,313	0.661%
Institutions	68,198,435	99.2%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 75.45% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
10.4%	The Vanguard Group, Inc.	6,967,850	US$692.1m	0.99%	0.01%
9.83%	BlackRock, Inc.	6,612,795	US$656.8m	3.14%	0.01%
7.03%	T. Rowe Price Group, Inc.	4,730,394	US$469.9m	-30.9%	0.04%
6.6%	FMR LLC	4,439,436	US$441.0m	10.7%	0.03%
5.27%	Capital Research and Management Company	3,546,629	US$352.3m	-12.6%	0.02%
5.26%	Wellington Management Group LLP	3,541,932	US$351.8m	5.19%	0.06%
4.91%	Victory Capital Management Inc.	3,306,332	US$328.4m	-15.7%	0.31%
3.3%	Invesco Ltd.	2,221,385	US$220.7m	-2.46%	0.06%
3.3%	Nordea Investment Management, AB	2,218,705	US$220.4m	3.6%	0.15%
2.81%	State Street Global Advisors, Inc.	1,889,681	US$187.7m	-0.2%	0.01%
1.67%	Geode Capital Management, LLC	1,120,998	US$111.3m	3.3%	0.01%
1.6%	Neuberger Berman Investment Advisers LLC	1,075,724	US$106.9m	7.91%	0.09%
1.42%	BNY Asset Management	958,259	US$95.2m	-3.62%	0.02%
1.37%	Goldman Sachs Asset Management, L.P.	922,813	US$91.7m	3.92%	0.03%
1.33%	Principal Global Investors, LLC	894,472	US$88.8m	0.01%	0.05%
1.22%	JP Morgan Asset Management	818,102	US$81.3m	-1.87%	0.01%
1.19%	Royce & Associates, LP	800,411	US$79.5m	-13%	0.7%
1.11%	Madison Investment Holdings, Inc	743,714	US$73.9m	10.2%	0.93%
1.06%	Norges Bank Investment Management	713,559	US$70.9m	-37.6%	0.01%
0.92%	Charles Schwab Investment Management, Inc.	617,552	US$61.3m	0%	0.01%
0.84%	Bank of America Corporation, Asset Management Arm	567,231	US$56.3m	-1.23%	0.02%
0.81%	Rafferty Asset Management, LLC	543,937	US$54.0m	-8.72%	0.21%
0.76%	JPMorgan Chase & Co, Brokerage and Securities Investments	511,148	US$50.8m	17%	0.03%
0.76%	Ceredex Value Advisors LLC	509,883	US$50.6m	17.8%	1.05%
0.74%	Northern Trust Global Investments	497,094	US$49.4m	13.6%	0.01%