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Home > Insider Trading > Filing (0001127602-10-007259)

Filing Details

Accession Number:: 0001127602-10-007259
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2010-03-03 12:00:00
Reporting Period:: 2010-03-01

Filing Date:: 2010-03-03
Accepted Time:: 2010-03-03 17:49:41
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1049502	Mks Instruments Inc	MKSI	Industrial Instruments For Measurement, Display, And Control (3823)	042277512

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1256715	G Gerard Colella	2 Tech Drive Andover MA 01810	Vp, Chief Operating Officer	No	Yes	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-03-01	4,733	$0.00	5,439	No	4	M	Direct
Common Stock	Disposition	2010-03-01	1,658	$18.35	3,781	No	4	F	Direct
Common Stock	Disposition	2010-03-02	3,770	$18.32	11	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	F	Direct
No	4	S	Direct

Reported Derivative Transactions

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Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Restricted Stock Unit	Disposition	2010-03-01	4,733	$0.00	4,733	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
25,582			No	4	M	Direct

Footnotes

This transaction was effected pursuant to a Rule 10b5-1 plan previously adopted by the reporting person to satisfy tax withholding obligation.
Each restricted stock unit represents the contingent right to receive one share of common stock of MKS Instruments, Inc.
These RSUs vest in equal installments over three years.