Product Revenue (Tables)

6 Months Ended

Jun. 30, 2013

Product Revenue

Product revenue for the period

	Three Months Ended June 30,					Six Months Ended June 30,
	2013			2012		2013			2012
	(In thousands)
Product revenue, gross	$	69,269		$	—	$	134,728		$	—
Government rebates, chargebacks and other	(4,952		)	—		(3,301		)	—
Returns reserves and distribution fees	(3,280		)	—		(6,382		)	—
Product revenue, net	$	61,037		$	—	$	125,045		$	—

Schedule of reserve established for Kyprolis

	Chargebacks			Rebates and Other			Distribution Fees and Returns			Total
	(In thousands)
Balance as of December 31, 2012	$	5,708		$	1,946		$	2,286		$	9,940
Provision related to current period sales	8,345			843			6,382			15,570
Credits/ Payments	(8,675		)	(116		)	(5,600		)	(14,391		)
Other	(5,088		)	(800		)	—			(5,888		)
Balance as of June 30, 2013	$	290		$	1,873		$	3,068		$	5,231