Item 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The information required by Item 403 of Regulation S-K is incorporated by reference to the Proxy Statement under the section captioned “Security Ownership of Certain Beneficial Owners and Management.”

Equity Compensation Plan Information

The following table provides information as of December 31, 2018 about our common stock that may be issued upon the exercise of options and awards granted to employees, consultants or members of our Board of Directors under all existing equity compensation plans, including the 2005 Incentive Plan and the Employee Stock Purchase Plan ("ESPP"), each as amended, and certain individual arrangements (Refer to Note 10“Stockholders’ Equity” of the Notes to Consolidated Financial Statements for a description of our equity compensation plans).



Plan Category	Number of securities to be issued upon exercise of outstanding options and restricted stock units(a)		Weighted average exercise price of outstanding options(b)		Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column(a))
Equity compensation plans approved by security holders	1,263,246	1	$	8.07	6,632,043	2, 3
Equity compensation plans not approved by security holders	—		—		—
Total	1,263,246		$	8.07	6,632,043


1	Includes 930,859 restricted stock units and 324,200 market-performance based restricted stock units at target, which have an exercise price of zero.


2	Includes 571,778 shares available for issuance under our ESPP. We are unable to ascertain with specificity the number of securities to be issued upon exercise of outstanding rights or the weighted average exercise price of outstanding rights under the ESPP.


3	Includes 648,185 of potentially issuable MSUs if performance targets are achieved at maximum payout.

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