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MKSI - As of 06/24/24, 01:26:14 AM: 56 Insider Transactions. Sector: Industrial Goods Industry: Diversified Machinery Prev Close:$44.88 Avg Vol(3m): 309,119 P/E: 22.60 EPS: 1.98 Email this page to a friend. Insider Transactions for MKSI

Buy/Sell*	Filed Date	Subject	Symbol	Acquirer	Pct Owned	Details
B	2020-02-14 12:07:09.0	MKS INSTRUMENTS INC	MKSI	VANGUARD GROUP INC	9.31%	view
S	2020-01-30 10:24:01.0	MKS INSTRUMENTS INC	MKSI	WELLINGTON MANAGEMENT GROUP LLP	4.47%	view
S	2019-02-11 13:16:59.0	MKS INSTRUMENTS INC	MKSI	VANGUARD GROUP INC	9.2%	view
S	2018-02-09 11:28:19.0	MKS INSTRUMENTS INC	MKSI	DIMENSIONAL FUND ADVISORS LP	4.89%	view
S	2018-02-08 11:39:14.0	MKS INSTRUMENTS INC	MKSI	BlackRock Inc	11.0%	view
B	2017-10-10 10:07:02.0	MKS INSTRUMENTS INC	MKSI	WELLINGTON MANAGEMENT GROUP LLP	10.46%	view
B	2017-02-10 09:24:43.0	MKS INSTRUMENTS INC	MKSI	VANGUARD GROUP INC	9.97%	view
B	2017-02-09 08:54:57.0	MKS INSTRUMENTS INC	MKSI	DIMENSIONAL FUND ADVISORS LP	7.89%	view
B	2017-01-12 17:08:50.0	MKS INSTRUMENTS INC	MKSI	BlackRock Inc	11.5%	view
B	2016-10-07 16:13:48.0	MKS INSTRUMENTS INC	MKSI	VANGUARD GROUP INC	7.43%	view
B	2016-02-09 16:22:31.0	MKS INSTRUMENTS INC	MKSI	BlackRock Inc	9.3%	view
B	2016-01-19 14:23:05.0	MKS INSTRUMENTS INC	MKSI	VANGUARD GROUP INC	6.6%	view
B	2015-02-05 09:31:19.0	MKS INSTRUMENTS INC	MKSI	BlackRock Inc	8.7%	view
B	2015-01-13 15:09:46.0	MKS INSTRUMENTS INC	MKSI	ROYCE & ASSOCIATES LLC	12.7%	view
S	2014-02-10 16:29:20.0	MKS INSTRUMENTS INC	MKSI	DIMENSIONAL FUND ADVISORS LP	6.3%	view
S	2014-01-29 21:44:47.0	MKS INSTRUMENTS INC	MKSI	BlackRock Inc	8.7%	view
B	2014-01-13 12:11:48.0	MKS INSTRUMENTS INC	MKSI	ROYCE & ASSOCIATES LLC	5.88%	view
S	2013-02-11 17:15:00.0	MKS INSTRUMENTS INC	MKSI	DIMENSIONAL FUND ADVISORS LP	7.74%	view
S	2013-01-24 11:07:20.0	MKS INSTRUMENTS INC	MKSI	KORNITZER CAPITAL MANAGEMENT INC	13.4%	view
S	2012-02-14 08:30:23.0	MKS INSTRUMENTS INC	MKSI	DIMENSIONAL FUND ADVISORS LP	6.37%	view
S	2012-02-10 07:35:06.0	MKS INSTRUMENTS INC	MKSI	VANGUARD GROUP INC	5.24%	view
B	2012-01-18 15:18:32.0	MKS INSTRUMENTS INC	MKSI	ROYCE & ASSOCIATES LLC	14.25%	view
S	2011-02-11 11:54:40.0	MKS INSTRUMENTS INC	MKSI	BERTUCCI CLAIRE R	2.7%	view
B	2011-02-07 13:57:28.0	MKS INSTRUMENTS INC	MKSI	BlackRock Inc	9.75%	view
S	2011-01-14 13:36:38.0	MKS INSTRUMENTS INC	MKSI	ROYCE & ASSOCIATES LLC	14.16%	view
S	2010-02-16 15:10:00.0	MKS INSTRUMENTS INC	MKSI	BERTUCCI JOHN R	6.2%	view
B	2010-02-08 10:42:31.0	MKS INSTRUMENTS INC	MKSI	BlackRock Inc	8.41%	view
B	2010-01-25 15:55:21.0	MKS INSTRUMENTS INC	MKSI	KORNITZER CAPITAL MANAGEMENT INC	9.1%	view
B	2009-02-09 12:56:19.0	MKS INSTRUMENTS INC	MKSI	BARCLAYS GLOBAL INVESTORS NA	4.38%	view
B	2009-01-26 15:11:30.0	MKS INSTRUMENTS INC	MKSI	KORNITZER CAPITAL MANAGEMENT INC	6.33%	view
S	2008-02-19 17:16:38.0	MKS INSTRUMENTS INC	MKSI	KORNITZER CAPITAL MANAGEMENT INC	8.5%	view
B	2008-02-07 11:56:23.0	MKS INSTRUMENTS INC	MKSI	BERTUCCI CLAIRE R	7.71%	view
B	2008-02-05 17:29:24.0	MKS INSTRUMENTS INC	MKSI	BARCLAYS GLOBAL INVESTORS NA	14.46%	view
B	2007-10-10 13:12:41.0	MKS INSTRUMENTS INC	MKSI	FMR LLC	11.1%	view
S	2007-02-14 16:56:40.0	MKS INSTRUMENTS INC	MKSI	FMR CORP	2.1%	view
S	2007-02-12 11:58:59.0	MKS INSTRUMENTS INC	MKSI	BERTUCCI JOHN R	11.7%	view
B	2007-02-08 19:39:38.0	MKS INSTRUMENTS INC	MKSI	DIMENSIONAL FUND ADVISORS INC	6.62%	view
S	2007-01-23 16:27:54.0	MKS INSTRUMENTS INC	MKSI	EMERSON ELECTRIC CO	4.9%	view
B	2006-12-22 16:03:19.0	MKS INSTRUMENTS INC	MKSI	BERTUCCI JOHN R	11.7%	view
S	2006-12-20 15:22:54.0	MKS INSTRUMENTS INC	MKSI	EMERSON ELECTRIC CO	7.4%	view
S	2006-10-12 16:21:19.0	MKS INSTRUMENTS INC	MKSI	EMERSON ELECTRIC CO	10.4%	view
S	2006-08-14 20:33:49.0	MKS INSTRUMENTS INC	MKSI	EMERSON ELECTRIC CO	26.1%	view
S	2006-06-01 00:00:00.0	MKS INSTRUMENTS INC	MKSI	EMERSON ELECTRIC CO	30.8%	view
S	2006-04-06 00:00:00.0	MKS INSTRUMENTS INC	MKSI	EMERSON ELECTRIC CO	33.4%	view
B	2006-02-14 00:00:00.0	MKS INSTRUMENTS INC	MKSI	FMR CORP	6.1%	view
S	2006-02-13 00:00:00.0	MKS INSTRUMENTS INC	MKSI	TCW GROUP INC	2.5%	view
B	2006-02-06 00:00:00.0	MKS INSTRUMENTS INC	MKSI	DIMENSIONAL FUND ADVISORS INC	n/a	view
B	2005-02-15 00:00:00.0	MKS INSTRUMENTS INC	MKSI	BERTUCCI JOHN R	17.8%	view
S	2005-02-14 00:00:00.0	MKS INSTRUMENTS INC	MKSI	PRICE T ROWE ASSOCIATES INC	5.1%	view
S	2004-02-13 00:00:00.0	MKS INSTRUMENTS INC	MKSI	BERTUCCI JOHN R	9.8%	view
B	2004-02-13 00:00:00.0	MKS INSTRUMENTS INC	MKSI	PRICE T ROWE ASSOCIATES INC	5.7%	view
S	2004-01-28 00:00:00.0	MKS INSTRUMENTS INC	MKSI	EMERSON ELECTRIC CO	51.5%	view
S	2003-08-07 00:00:00.0	MKS INSTRUMENTS INC	MKSI	EMERSON ELECTRIC CO	12.1%	view
B	2003-02-12 00:00:00.0	MKS INSTRUMENTS INC	MKSI	SNYDER JENNIFER C	6.7%	view
B	2002-02-11 00:00:00.0	MKS INSTRUMENTS INC	MKSI	EMERSON ELECTRIC CO	54.0%	view
S	2001-05-08 00:00:00.0	MKS INSTRUMENTS INC	MKSI	BERTUCCI JOHN R	30.1%	view

* Institutions do not report transaction buy/sell types directly. To help members better understand the transactions, this column is filled by InsiderCow's best-effort interpretations.