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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
21510	Coherent Inc	COHR	Laboratory Analytical Instruments (3826)	941622541

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1234297	Helene Simonet	P. O. Box 54980 Santa Clara CA 95056-0980	Exec Vp And Cfo	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2010-12-01	1,288	$35.01	29,362	No	4	M	Direct
Common Stock	Disposition	2010-12-01	1,288	$43.03	28,074	No	4	S	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Restricted Stock Units	Acquisiton	2010-11-29	7,500	$0.00	7,500	$0.00
Common Stock	Performance Restricted Stock Units	Acquisiton	2010-11-29	15,000	$0.00	15,000	$0.00
Common Stock	Non Qualified Stock Option (right to buy)	Disposition	2010-12-01	1,288	$35.01	1,288	$35.01

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
129,830		2013-11-29	No	4	A	Direct
144,830		2013-12-15	No	4	A	Direct
143,542	2008-03-30	2012-03-30	No	4	M	Direct

Footnotes

Sold Pursuant to a Rule 10b5-1 sales plan adopted on May 28, 2010.
Represents the weighted average sales price for the shares. The range of prices for such sales was $43.00 to $43.07.
This Restricted Stock Unit award vests over three years with one third of the grant vesting on each of the subsequent anniversaries of the grant.
This Performance Restricted Stock Unit award vests over three years with up to one third of the grant vesting on December 15 of each year based on the relative performance of the underlying stock versus the Russell 2000 Index for the 30 trading days on and prior to November 29 of each year versus the same 30 trading day period for the preceding year.