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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
704532	Nanometrics Inc	NANO	Measuring & Controlling Devices, Nec (3829)	942276314

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1369076	A Bruce Crawford	C/O Nanometrics, Inc. 1550 Buckeye Drive Milpitas CA 95035	Chief Operating Officer	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
Common Stock	Acquisiton	2010-12-27	1,389	$0.98	65,388	No	4	M	Direct
Common Stock	Acquisiton	2010-12-27	229	$7.50	65,617	No	4	M	Direct
Common Stock	Disposition	2010-12-27	1,618	$13.23	63,999	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
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	Non-Qualified Stock Option (right to buy)	Acquisiton	2009-09-03	8,262	$0.00	8,262	$7.50
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2009-09-03	16,525	$0.00	16,525	$15.98
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2010-12-27	1,389	$0.00	1,389	$0.98
Common Stock	Non-Qualified Stock Option (right to buy)	Disposition	2010-12-27	229	$0.00	229	$7.50

Remaning Holdings	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
8,262	2016-09-03	No	4	A	Direct
0	2016-01-25	No	4	D	Direct
15,278	2015-11-19	No	4	M	Direct
4,820	2016-09-03	No	4	M	Direct

Footnotes

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 30, 2010.
One third (1/3rd) of the shares are fully vested on the date of grant, with the remaining shares vesting (starting on the one year anniversary of the date of grant) at a rate of one twenty-fourth (1/24th) per month until fully vested on September 3, 2012.
The reporting person agreed to cancellation of an option granted to him on July 21, 2006, in exchange for a new option having a lower exercise price.
The shares vest in three equal annual installments beginning on January 25, 2007.
One thirty-sixth (1/36th) of the shares shall vest and become exercisable in equal monthly installments starting on the monthly anniversary of the date of grant (November 19, 2008).