Seth Bagshaw Biography and Net Worth

CFO of MKS

Seth H. Bagshaw is Chief Financial Officer, Senior Vice President, Treasurer of MKS Instruments, Inc. Mr. Bagshaw has served as our Senior Vice President and Chief Financial Officer since May 2017 and as Treasurer since March 2011. From January 2010 to May 2017, he served as our Vice President and Chief Financial Officer. From March 2006 until January 2010, Mr. Bagshaw served as our Vice President and Corporate Controller. Prior to joining MKS, Mr. Bagshaw served as Vice President and Chief Financial Officer of Vette Corp., an integrated global supplier of thermal management systems, from 2004 until 2006. From 1999 until 2004, Mr. Bagshaw served as Vice President and Corporate Controller of Varian Semiconductor Equipment Associates, Inc., a leading producer of ion implantation equipment used in the semiconductor manufacturing industry, and from 1998 until 1999, he served as Vice President and Chief Financial Officer of Palo Alto Products International, Inc., an industrial design, engineering and manufacturing company, until its acquisition by Flextronics International, Ltd. Prior to that, Mr. Bagshaw held several senior financial management positions at Waters Corporation, a developer of innovative analytical science solutions, most recently as Vice President and Chief Financial Officer of its Asia-Pacific region, and was a Senior Manager at PricewaterhouseCoopers LLP. Mr. Bagshaw has been a member of the Board of Directors of Associated Industries of Massachusetts, a non-profit state-wide employer advocacy and service organization, since 2010 and has served on its Audit Committee since 2014. Mr. Bagshaw is a Certified Public Accountant and has a B.S. in Business Administration from Boston University and an M.B.A. from Cornell University.

What is Seth H. Bagshaw's net worth?: The estimated net worth of Seth H. Bagshaw is at least $163.35 as of February 22nd, 2024. Mr. Bagshaw owns 1 shares of MKS stock worth more than $163 as of December 5th. This net worth approximation does not reflect any other assets that Mr. Bagshaw may own. Learn More about Seth H. Bagshaw's net worth.
How do I contact Seth H. Bagshaw?: The corporate mailing address for Mr. Bagshaw and other MKS executives is 2 TECH DRIVE SUITE 201, ANDOVER MA, 01810. MKS can also be reached via phone at (978) 645-5500 and via email at [email protected]. Learn More on Seth H. Bagshaw's contact information.
Has Seth H. Bagshaw been buying or selling shares of MKS?: Seth H. Bagshaw has not been actively trading shares of MKS during the last quarter. Most recently, Seth H. Bagshaw sold 32,865 shares of the business's stock in a transaction on Thursday, February 22nd. The shares were sold at an average price of $123.28, for a transaction totalling $4,051,597.20. Following the completion of the sale, the chief financial officer now directly owns 1 shares of the company's stock, valued at $123.28. Learn More on Seth H. Bagshaw's trading history.
Who are MKS's active insiders?: MKS's insider roster includes Seth Bagshaw (CFO), Kathleen Burke (EVP), Gerard Colella (Director), David Henry (SVP), Jacqueline Moloney (Director), Elizabeth Mora (Director), Eric Taranto (SVP), and John Williams (EVP). Learn More on MKS's active insiders.
Are insiders buying or selling shares of MKS?: In the last year, insiders at the scientific and technical instruments company sold shares 9 times. They sold a total of 16,775 shares worth more than $1,897,976.50. The most recent insider tranaction occured on December, 2nd when Director Elizabeth Mora sold 300 shares worth more than $47,643.00. Insiders at MKS own 0.6% of the company. Learn More about insider trades at MKS.
Information on this page was last updated on 12/2/2025.

Seth H. Bagshaw Insider Trading History at MKS

Transaction Date	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
2/22/2024	Sell	32,865	$123.28	$4,051,597.20	1
9/6/2023	Sell	25,000	$97.30	$2,432,500.00	20,547
4/15/2021	Sell	9,000	$186.86	$1,681,740.00	27,010
7/22/2020	Sell	5	$123.00	$615.00	24,164
7/6/2020	Sell	5,000	$116.84	$584,200.00	24,169
10/29/2019	Sell	18,000	$112.08	$2,017,440.00	18,857
2/20/2018	Sell	5,000	$115.21	$576,050.00	23,069
1/8/2018	Sell	10,000	$102.07	$1,020,700.00	11,766
9/13/2017	Sell	7,500	$85.80	$643,500.00	21,615
3/15/2017	Sell	5,000	$68.27	$341,350.00	25,746
2/27/2017	Sell	7,500	$67.00	$502,500.00	30,746
11/16/2016	Sell	10,000	$55.45	$554,500.00	19,302
8/19/2016	Sell	15,000	$47.43	$711,450.00	29,302
2/26/2016	Sell	1,750	$32.70	$57,225.00	44,845
2/17/2016	Sell	1,600	$33.26	$53,216.00	41,393
2/11/2016	Sell	2,150	$31.96	$68,714.00	35,304
2/23/2015	Sell	2,115	$35.30	$74,659.50
2/10/2015	Sell	1,615	$35.78	$57,784.70
10/31/2014	Sell	1,000	$36.40	$36,400.00
10/29/2014	Sell	4,000	$36.00	$144,000.00
10/24/2014	Sell	4,000	$35.26	$141,040.00
9/19/2014	Sell	3,500	$34.77	$121,695.00
8/28/2014	Sell	2,600	$33.46	$86,996.00
7/24/2014	Sell	5,000	$32.62	$163,100.00

Seth H. Bagshaw Buying and Selling Activity at MKS

MKS Company Overview

MKS Instruments, Inc. provides foundational technology solutions to semiconductor manufacturing, electronics and packaging, and specialty industrial applications in the United States, Germany, China, South Korea, and internationally. It operates through Vacuum Solutions Division (VSD), Photonics Solutions Division (PSD), and Material Solutions Division (MSD) segments. The VSD segment provides foundational technology solutions, including pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, electronic control technology, reactive gas generation and delivery, power generation and delivery, and vacuum technology. The PSD segment offers range of solutions, which include lasers, beam measurement and profiling, precision motion control, vibration isolation systems, photonics instruments, temperature sensing, opto-mechanical components, optical elements, systems for flexible PCB laser processing, and laser-based systems, as well as high density interconnect PCB and package manufacturing. The MSD segment develops, process, and manufactures technologies comprising advanced surface modification, electroless and electrolytic plating, and surface finishing for chemistry, equipment, software, and services markets, as well as high-technology applications. In addition, the company sells its products and services through direct sales, network of independent distributors, and sales representatives, as well as websites, including product catalogs. The company was incorporated in 1961 and is headquartered in Andover, Massachusetts.

Today's Range

Now: $163.35

$160.56

$164.06

50 Day Range

MA: $142.30

$121.26

$163.40

2 Week Range

Now: $163.35

$54.84

$164.79

Volume

843,624 shs

Average Volume

921,881 shs

Market Capitalization

$10.97 billion

P/E Ratio

39.65

Dividend Yield

0.54%

Beta

1.93