Stockholders’ Equity

Preferred and Common Stock

The authorized capital stock of Nanometrics consists of 47,000,000 shares of common stock, par value $0.001 per share, and 3,000,000 shares of preferred stock, par value $0.001 per share.

Stock Repurchase

On November 29, 2010, the Company's Board of Directors approved a program to repurchase up to $10.0 million of our common stock, referred to as the 2010 program. Stock repurchases under this program occurred as follows: fiscal year 2010, $0.8 million; fiscal year 2011, $4.3 million; and fiscal year 2012, $4.9 million. As of June 30, 2012, the Company repurchased and retired an aggregate of 667,406 shares of its common stock at a weighted average price of $14.97 per share under the 2010 program utilizing the entire $10.0 million approved by the Board on November 29, 2010, for the repurchase of shares of its common stock.

On May 29, 2012, the Company's Board of Directors approved a program to repurchase up to $20.0 million of its common stock, referred to as the 2012 program. On February 22, 2013, an additional $5.0 million was approved for repurchases of its common stock under the 2012 program. Stock repurchases under this program may be made through open market and privately negotiated transactions, at times and in such amounts as management deems appropriate. The timing and actual number of shares repurchased is dependent on a variety of factors including price, corporate and regulatory requirements and other market conditions. During fiscal year 2012, the Company repurchased and retired 250,400 shares of its common stock under this approved program at the weighted average price of $14.15 per share.

During fiscal year of 2012, the Company repurchased and retired a total of 587,766 shares of its common stock at a weighted average price of $14.47 per share collectively under the 2010 and the 2012 programs.

During fiscal year 2013, the Company repurchased and retired 332,771 shares of its common stock under the 2012 program at the weighted average price of $15.03 per share. As of December 28, 2013, $16.5 million remained available for the future repurchase of shares of its common stock under the 2012 program.

Stock Option Plans

The Nanometrics option plans are as follows:



Plan Name	Participants	Shares Authorized
2005 Equity Incentive Plan	Employees, consultants and directors	7,292,594
2002 Non-statutory Stock Option Plan	Employees and consultants	1,200,000
2000 Employee Stock Option Plan	Employees and consultants	2,450,000
2000 Director Stock Option Plan	Non-employee directors	250,000
Accent Optical Technologies, Inc. Stock Incentive Plan	Employees and consultants	205,003

See Note 16 for additional information.

Employee Stock Purchase Plan

Under the 2003 Employee Stock Purchase Plan (“ESPP”), eligible employees are allowed to have salary withholdings of up to 10% of their base compensation to purchase shares of common stock at a price equal to 85% of the lower of the market value of the stock at the beginning or end of each six-month offering period, subject to an annual limitation. At the end of the fiscal year ended December 28, 2013, the Company had 0.6 million shares remaining for issuance under the ESPP. Shares purchased under the ESPP were 128.165 shares, 65,355 shares and 112,491 shares in 2013, 2012 and 2011 at a weighted average price of $12.38, $15.36 and $12.92, respectively.