UNITED STATES
	SECURITIES AND EXCHANGE COMMISSION
	WASHINGTON, DC 20549
	FORM 10-Q
	(Mark One)
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	þ
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	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
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	For the quarterly period ended
	March 31, 2011
	OR
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| 
	o
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	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
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	For the transition period from
	                    
	to
	                    
	.
	Commission file number:
	001-33876
	Athersys, Inc.
	(Exact name of registrant as specified in its charter)
 
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	Delaware
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	20-4864095
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	(State or other jurisdiction
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	(I.R.S. Employer Identification No.)
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	of incorporation or organization)
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	3201 Carnegie Avenue, Cleveland, Ohio
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	44115-2634
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	(Address of principal executive offices)
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	(Zip Code)
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	Registrants telephone number, including area code: (
	216) 431-9900
	Former name, former address and former fiscal year, if changed since last report:
	Not Applicable
	Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by
	Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for
	such shorter period that the registrant was required to file such reports), and (2) has been
	subject to such filing requirements for the past 90 days: Yes
	þ
	No
	o
	Indicate by check mark whether the registrant has submitted electronically and posted on its
	corporate Web site, if any, every Interactive Data File required to be submitted and posted
	pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months
	(or for such shorter period that the registrant was required to submit and post such files). Yes
	o
	No
	o
	Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a
	non-accelerated filer, or a smaller reporting company. See the definitions of large accelerated
	filer, accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act.
	(Check one):
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	Large accelerated filer
	o
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	Accelerated filer
	o
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	Non-accelerated filer
	o
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	Smaller reporting company
	þ
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	Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the
	Exchange Act): Yes
	o
	No
	þ
	The number of outstanding shares of the registrants common stock, $0.001 par value, as of May 1,
	2011 was 23,502,581.
	 
	 
	 
	 
 
	 
	ATHERSYS, INC.
	TABLE OF CONTENTS
	 
	2
 
	PART I. FINANCIAL INFORMATION
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	Item 1.
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	Financial Statements.
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	Athersys, Inc.
	Condensed Consolidated Balance Sheets
	(In thousands, except share and per share data)
	(Unaudited)
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	March 31,
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	December 31,
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	2011
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	2010
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	Assets
 
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	Current assets:
 
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	Cash and cash equivalents
 
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	$
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	7,627
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	$
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	2,105
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	Available-for-sale securities
 
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	17,687
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	13,076
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	Accounts receivable
 
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	395
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	2,328
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	Receivable from Angiotech
 
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	83
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	106
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	Prepaid expenses and other
 
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	358
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	329
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| 
 
	 
 
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	Total current assets
 
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	26,150
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	17,944
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| 
 
	 
 
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	Equipment, net
 
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	957
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	955
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	Deposits and other
 
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	28
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	207
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| 
 
	 
 
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| 
 
	Total assets
 
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	$
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	27,135
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	$
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	19,106
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| 
 
	 
 
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| 
 
	 
 
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	Liabilities and stockholders equity
 
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	Current liabilities:
 
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| 
 
	Accounts payable
 
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	$
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	1,674
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	$
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	1,498
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| 
 
	Accrued compensation and related benefits
 
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	395
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	580
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	Accrued clinical trial costs
 
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	222
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	207
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| 
 
	Accrued expenses
 
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	1,382
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	1,012
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| 
 
	Deferred revenue
 
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	4,891
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 | 
	 
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	5,541
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| 
 
	 
 
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	Total current liabilities
 
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	8,564
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	8,838
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| 
 
	 
 
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| 
 
	Deferred revenue
 
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	575
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	1,263
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| 
 
	Warrant liability
 
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 | 
	2,070
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 | 
	
 | 
	 
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| 
 
	 
 
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	Stockholders equity:
 
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	Preferred stock, at stated value;
	10,000,000 shares authorized, and no
	shares issued and outstanding at March
	31, 2011 and December 31, 2010
 
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	Common stock, $0.001 par value;
	100,000,000 shares authorized, and
	23,502,581 and 18,930,678 shares issued
	and outstanding at March 31, 2011 and
	December 31, 2010, respectively
 
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	23
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 | 
	 
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 | 
	19
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| 
 
	Additional paid-in capital
 
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	224,988
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	214,174
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| 
 
	Accumulated other comprehensive income
 
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 | 
	59
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 | 
	 
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 | 
	26
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 | 
| 
 
	Accumulated deficit
 
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 | 
	(209,144
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	)
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 | 
	(205,214
 | 
	)
 | 
| 
 
	 
 
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| 
 
	Total stockholders equity
 
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	15,926
 | 
	 
 | 
	 
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 | 
	9,005
 | 
	 
 | 
| 
 
	 
 
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	Total liabilities and stockholders equity
 
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 | 
	$
 | 
	27,135
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 | 
	 
 | 
	$
 | 
	19,106
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| 
 
	 
 
 | 
	 
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	See accompanying notes to unaudited condensed consolidated financial statements.
	 
	3
 
	Athersys, Inc.
	Condensed Consolidated Statements of Operations
	(In thousands, except share and per share data)
	(Unaudited)
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	Three months ended
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	March 31,
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| 
	 
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	2011
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 | 
	 
 | 
	2010
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| 
 
	Revenues
 
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| 
 
	Contract revenue
 
 | 
	 
 | 
	$
 | 
	2,501
 | 
	 
 | 
	 
 | 
	$
 | 
	1,395
 | 
	 
 | 
| 
 
	Grant revenue
 
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 | 
	489
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 | 
	 
 | 
	345
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 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Total revenues
 
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 | 
	2,990
 | 
	 
 | 
	 
 | 
	 
 | 
	1,740
 | 
	 
 | 
| 
 
	 
 
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| 
 
	Costs and expenses
 
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| 
 
	Research and development
 
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	4,588
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	2,822
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	General and administrative
 
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 | 
	1,219
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	1,437
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| 
 
	Depreciation
 
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 | 
	60
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 | 
	75
 | 
	 
 | 
| 
 
	 
 
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 | 
	 
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 | 
| 
 
	Total costs and expenses
 
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 | 
	5,867
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 | 
	 
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 | 
	4,334
 | 
	 
 | 
| 
 
	 
 
 | 
	 
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 | 
	 
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	Loss from operations
 
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 | 
	(2,877
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	)
 | 
	 
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 | 
	(2,594
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	)
 | 
| 
 
	Interest income, net
 
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 | 
	33
 | 
	 
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	61
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| 
 
	Other expense
 
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 | 
	(1,086
 | 
	)
 | 
	 
 | 
	 
 | 
	(28
 | 
	)
 | 
| 
 
	 
 
 | 
	 
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| 
 
	Net loss
 
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 | 
	$
 | 
	(3,930
 | 
	)
 | 
	 
 | 
	$
 | 
	(2,561
 | 
	)
 | 
| 
 
	 
 
 | 
	 
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| 
 
	 
 
 | 
	 
 | 
	 
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	Basic and diluted net loss per common share
 
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 | 
	$
 | 
	(0.18
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	)
 | 
	 
 | 
	$
 | 
	(0.14
 | 
	)
 | 
| 
 
	Weighted average shares outstanding, basic and diluted
 
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 | 
	21,874,735
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	18,929,333
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	See accompanying notes to unaudited condensed consolidated financial statements.
	 
	4
 
	Athersys, Inc.
	Condensed Consolidated Statements of Cash Flows
	(In thousands)
	(Unaudited)
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	Three months ended
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 | 
| 
	 
 | 
	 
 | 
	March 31,
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	2011
 | 
	 
 | 
	 
 | 
	2010
 | 
	 
 | 
| 
 
	Operating activities
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Net loss
 
 | 
	 
 | 
	$
 | 
	(3,930
 | 
	)
 | 
	 
 | 
	$
 | 
	(2,561
 | 
	)
 | 
| 
 
	Adjustments to reconcile net loss to net cash
	used in operating activities:
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
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| 
 
	Depreciation
 
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 | 
	 
 | 
	60
 | 
	 
 | 
	 
 | 
	 
 | 
	75
 | 
	 
 | 
| 
 
	Stock-based compensation
 
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 | 
	119
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 | 
	450
 | 
	 
 | 
| 
 
	Issuance of common stock to former lenders
 
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 | 
	607
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 | 
	 
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	Change in fair value of warrant liability
 
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 | 
	275
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 | 
	 
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| 
 
	Amortization of premium on
	available-for-sale debt securities
 
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	24
 | 
	 
 | 
	 
 | 
	 
 | 
	50
 | 
	 
 | 
| 
 
	Changes in operating assets and liabilities:
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Accounts receivable
 
 | 
	 
 | 
	 
 | 
	1,933
 | 
	 
 | 
	 
 | 
	 
 | 
	164
 | 
	 
 | 
| 
 
	Receivable from Angiotech
 
 | 
	 
 | 
	 
 | 
	23
 | 
	 
 | 
	 
 | 
	 
 | 
	(15
 | 
	)
 | 
| 
 
	Prepaid expenses and other assets
 
 | 
	 
 | 
	 
 | 
	48
 | 
	 
 | 
	 
 | 
	 
 | 
	(25
 | 
	)
 | 
| 
 
	Accounts payable and accrued expenses
 
 | 
	 
 | 
	 
 | 
	376
 | 
	 
 | 
	 
 | 
	 
 | 
	(350
 | 
	)
 | 
| 
 
	Deferred revenue
 
 | 
	 
 | 
	 
 | 
	(1,338
 | 
	)
 | 
	 
 | 
	 
 | 
	(1,351
 | 
	)
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Net cash used in operating activities
 
 | 
	 
 | 
	 
 | 
	(1,803
 | 
	)
 | 
	 
 | 
	 
 | 
	(3,563
 | 
	)
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Investing activities
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Purchase of available-for-sale securities
 
 | 
	 
 | 
	 
 | 
	(6,500
 | 
	)
 | 
	 
 | 
	 
 | 
	(6,068
 | 
	)
 | 
| 
 
	Maturities of available-for-sale securities
 
 | 
	 
 | 
	 
 | 
	2,000
 | 
	 
 | 
	 
 | 
	 
 | 
	3,500
 | 
	 
 | 
| 
 
	Purchases of equipment
 
 | 
	 
 | 
	 
 | 
	(62
 | 
	)
 | 
	 
 | 
	 
 | 
	(257
 | 
	)
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Net cash used in investing activities
 
 | 
	 
 | 
	 
 | 
	(4,562
 | 
	)
 | 
	 
 | 
	 
 | 
	(2,825
 | 
	)
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Financing activities
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Proceeds from issuance of common stock and
	warrants, net of offering costs
 
 | 
	 
 | 
	 
 | 
	11,887
 | 
	 
 | 
	 
 | 
	 
 | 
	
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Net cash provided by financing activities
 
 | 
	 
 | 
	 
 | 
	11,887
 | 
	 
 | 
	 
 | 
	 
 | 
	
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
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| 
 
	Increase (decrease) in cash and cash equivalents
 
 | 
	 
 | 
	 
 | 
	5,522
 | 
	 
 | 
	 
 | 
	 
 | 
	(6,388
 | 
	)
 | 
| 
 
	Cash and cash equivalents at beginning of the period
 
 | 
	 
 | 
	 
 | 
	2,105
 | 
	 
 | 
	 
 | 
	 
 | 
	11,167
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Cash and cash equivalents at end of the period
 
 | 
	 
 | 
	$
 | 
	7,627
 | 
	 
 | 
	 
 | 
	$
 | 
	4,779
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	See accompanying notes to unaudited condensed consolidated financial statements.
	 
	5
 
	Athersys, Inc.
	Notes to Unaudited Condensed Consolidated Financial Statements
	Three-Month Periods Ended March 31, 2011 and 2010
 
	1. Background and Basis of Presentation
	We are a biopharmaceutical company engaged in the discovery and development of therapeutic products
	in one business segment. Our operations consist primarily of research and product development
	activities.
	The accompanying unaudited condensed consolidated financial statements should be read in
	conjunction with the audited financial statements and notes thereto included in our Annual Report
	on Form 10-K for the year ended December 31, 2010. The accompanying financial statements have been
	prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim
	financial information and Article 10 of Regulation S-X. Accordingly, since they are interim
	statements, the accompanying financial statements do not include all of the information and notes
	required by GAAP for complete financial statements. The accompanying financial statements reflect
	all adjustments, consisting of normal recurring adjustments, that are, in the opinion of
	management, necessary for a fair presentation of financial position and results of operations for
	the interim periods presented. Interim results are not necessarily indicative of results for a
	full year.
	The preparation of financial statements in conformity with GAAP requires management to make
	estimates and assumptions that affect the amounts reported in the financial statements and
	accompanying notes. Our critical accounting policies, estimates and assumptions are described in
	Managements Discussion and Analysis of Financial Condition and Results of Operations, which is
	included below in this Quarterly Report on Form 10-Q.
	Certain prior year amounts have been reclassified to conform with current year presentations.
	2. Recently Issued Accounting Standards
	In September 2009, Accounting Standards Codification (ASC) 605-25,
	Multiple-Element Arrangements
	,
	was updated (Accounting Standards Update (ASU) No. 2009-13) related to revenue recognition for
	arrangements with multiple elements. The revised guidance provides for two significant changes to
	the existing guidance. The first change relates to the determination of when the individual
	deliverables included in a multiple-element arrangement may be treated as separate units of
	accounting, which will likely result in the requirement to separate more deliverables within an
	arrangement leading to less revenue deferral. The second change modifies the manner in which the
	transaction consideration is allocated across the separately identified deliverables. Together,
	these changes are likely to result in earlier recognition of revenue for multiple-element
	arrangements than under previous guidance. The new guidance also significantly expands the
	disclosures required for multiple-element revenue arrangements. The new guidance was effective for
	us for new arrangements or modifications to existing arrangements entered into on or after January
	1, 2011 and had no effect on our financial statements for the quarter ended March 31, 2011. The
	adoption of this new guidance may have the potential effect of less future revenue deferral for new
	collaborations and bundled units of accounting being accounted for as separate units than we have
	historically experienced.
	 
	6
 
	In March 2010, ASC 605-28,
	Milestone Method of Revenue Recognition
	, was amended (ASU No. 2010-17)
	related to the ratification of the application of the proportional performance model of revenue
	recognition when applied to milestones in research and development arrangements. Accordingly, the
	consensus states that an entity can make an accounting policy election to recognize a payment that
	is contingent upon the achievement of a substantive milestone in its entirety in the period in which
	the milestone is achieved. The new guidance was effective for us for new arrangements entered into
	on or after January 1, 2011. The adoption of this guidance had no effect on our financial
	statements, since we have been historically recognizing milestone revenue consistent with this
	guidance.
	3. Net Loss per Share
	Basic and diluted net loss per share has been computed using the weighted-average number of shares
	of common stock outstanding during the period. We have outstanding options and warrants that are
	not used in the calculation of diluted net loss per share because to do so would be antidilutive.
	The following instruments were excluded from the calculation of diluted net loss per share because
	their effects would be antidilutive:
| 
	1)
 | 
	 
 | 
	Outstanding stock options to purchase 4,311,701 and 4,026,149 shares of common stock for the
	three-month periods ended March 31, 2011 and 2010, respectively; and
 | 
 
| 
	2)
 | 
	 
 | 
	Warrants to purchase 6,435,496 and 5,125,496 shares of common stock for the three-month
	periods ended March 31, 2011 and 2010, respectively.
 | 
 
	4. Comprehensive Loss
	All components of comprehensive loss, including net loss, are reported in the financial statements
	in the period in which they are recognized. Comprehensive loss is defined as the change in equity
	during a period from transactions and other events and circumstances from non-owner sources.
	Below is a reconciliation, in thousands, of net loss to comprehensive loss for all periods
	presented.
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	Three Months Ended
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	March 31,
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	2011
 | 
	 
 | 
	 
 | 
	2010
 | 
	 
 | 
| 
	 
 | 
	 
 | 
| 
 
	Net loss
 
 | 
	 
 | 
	$
 | 
	(3,930
 | 
	)
 | 
	 
 | 
	$
 | 
	(2,561
 | 
	)
 | 
| 
 
	Unrealized gain (loss) on available-for-sale securities
 
 | 
	 
 | 
	 
 | 
	21
 | 
	 
 | 
	 
 | 
	 
 | 
	(13
 | 
	)
 | 
| 
 
	Proportionate share of comprehensive income for equity method investment
 
 | 
	 
 | 
	 
 | 
	12
 | 
	 
 | 
	 
 | 
	 
 | 
	
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	 
 | 
	 
 | 
| 
 
	Comprehensive loss
 
 | 
	 
 | 
	$
 | 
	(3,897
 | 
	)
 | 
	 
 | 
	$
 | 
	(2,574
 | 
	)
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	5. Fair Value of Financial Instruments
	Our available-for-sale securities include U.S. government obligations, corporate debt securities, a
	fixed income mutual fund, and a corporate equity security that we received in a settlement in 2003,
	for which the corporation completed an initial public offering in 2011. As of March 31, 2011,
	approximately 57% of our investments were in U.S. government obligations, including
	government-backed agencies, and 37% of our investments were in a fixed-income mutual fund.
	The inputs used to measure fair value are classified into the following hierarchy:
| 
	Level 1
 | 
	 
 | 
	Unadjusted quoted prices in active markets for identical assets or liabilities.
 | 
| 
	 
 | 
| 
	Level 2
 | 
	 
 | 
	Unadjusted quoted prices in active markets for similar assets or liabilities,
	or unadjusted quoted prices for identical or similar assets or liabilities in
	markets that are not active, or inputs other than quoted prices that are
	observable for the asset or liability.
 | 
| 
	 
 | 
| 
	Level 3
 | 
	 
 | 
	Unobservable inputs for the asset or liability.
 | 
 
	 
	7
 
	The following table provides a summary of the fair values of our assets and liabilities measured at
	fair value on a recurring basis as of March 31, 2011 (in thousands):
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	Fair Value Measurements at March 31, 2011 Using
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	Quoted Prices in Active
 | 
	 
 | 
	 
 | 
	Significant Other
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	Balance as of
 | 
	 
 | 
	 
 | 
	Markets for Identical
 | 
	 
 | 
	 
 | 
	Observable Inputs
 | 
	 
 | 
	 
 | 
	Significant Unobservable
 | 
	 
 | 
| 
	Description
 | 
	 
 | 
	March 31, 2011
 | 
	 
 | 
	 
 | 
	Assets (Level 1)
 | 
	 
 | 
	 
 | 
	(Level 2)
 | 
	 
 | 
	 
 | 
	Inputs (Level 3)
 | 
	 
 | 
| 
 
	Available-for-sale
	securities
 
 | 
	 
 | 
	$
 | 
	17,687
 | 
	 
 | 
	 
 | 
	$
 | 
	17,537
 | 
	 
 | 
	 
 | 
	$
 | 
	150
 | 
	 
 | 
	 
 | 
	$
 | 
	
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Warrant liability
 
 | 
	 
 | 
	$
 | 
	2,070
 | 
	 
 | 
	 
 | 
	$
 | 
	
 | 
	 
 | 
	 
 | 
	$
 | 
	
 | 
	 
 | 
	 
 | 
	$
 | 
	2,070
 | 
	 
 | 
 
	Fair value is based upon quoted market prices in active markets for our level 1 investments
	and quoted market prices for similar assets for our level 2 investments. The estimated fair value
	of warrants accounted for as liabilities, representing a level 3 fair value measure, was determined
	on the issuance date and subsequently marked to market at each financial reporting date. The
	change in fair value of the warrants is estimated using the expected volatility based on the
	historical volatilities of comparable companies from a representative peer group selected based on
	industry and market capitalization, using the Black-Scholes pricing model with the following inputs
	at March 31, 2011:
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	Exercise price
 
 | 
	 
 | 
	$
 | 
	3.55
 | 
	 
 | 
| 
 
	Market value of stock at end of period
 
 | 
	 
 | 
	$
 | 
	2.84
 | 
	 
 | 
| 
 
	Expected volatility
 
 | 
	 
 | 
	 
 | 
	73.4
 | 
	%
 | 
| 
 
	Risk-free interest rate
 
 | 
	 
 | 
	 
 | 
	2.2
 | 
	%
 | 
| 
 
	Expected life (in years)
 
 | 
	 
 | 
	 
 | 
	4.84
 | 
	 
 | 
 
	The change in the fair value of the warrants for the period ending March 31, 2011 was an
	increase of approximately $275,000, representing expense during the period that is recorded in
	other expense.
	We review and reassess the fair value hierarchy classifications on a quarterly basis. Changes from
	one quarter to the next related to the observability of inputs in a fair value measurement may
	result in a reclassification between hierarchy levels.
	The following is a summary of available-for-sale securities (in thousands) at March 31, 2011 and
	December 31, 2010, respectively:
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	Cost or
 | 
	 
 | 
	 
 | 
	Gross
 | 
	 
 | 
	 
 | 
	Gross
 | 
	 
 | 
	 
 | 
	Estimated
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	Amortized
 | 
	 
 | 
	 
 | 
	Unrealized
 | 
	 
 | 
	 
 | 
	Unrealized
 | 
	 
 | 
	 
 | 
	Fair
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	Cost
 | 
	 
 | 
	 
 | 
	Losses
 | 
	 
 | 
	 
 | 
	Gains
 | 
	 
 | 
	 
 | 
	Value
 | 
	 
 | 
| 
 
	March 31, 2011:
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	U.S. government
	obligations, which
	included
	government-backed
	agencies
 
 | 
	 
 | 
	$
 | 
	10,017
 | 
	 
 | 
	 
 | 
	$
 | 
	(1
 | 
	)
 | 
	 
 | 
	$
 | 
	17
 | 
	 
 | 
	 
 | 
	$
 | 
	10,033
 | 
	 
 | 
| 
 
	Corporate debt securities
 
 | 
	 
 | 
	 
 | 
	1,009
 | 
	 
 | 
	 
 | 
	 
 | 
	
 | 
	 
 | 
	 
 | 
	 
 | 
	2
 | 
	 
 | 
	 
 | 
	 
 | 
	1,011
 | 
	 
 | 
| 
 
	Fixed income mutual fund
 
 | 
	 
 | 
	 
 | 
	6,500
 | 
	 
 | 
	 
 | 
	 
 | 
	(7
 | 
	)
 | 
	 
 | 
	 
 | 
	
 | 
	 
 | 
	 
 | 
	 
 | 
	6,493
 | 
	 
 | 
| 
 
	Corporate equity security
 
 | 
	 
 | 
	 
 | 
	114
 | 
	 
 | 
	 
 | 
	 
 | 
	
 | 
	 
 | 
	 
 | 
	 
 | 
	36
 | 
	 
 | 
	 
 | 
	 
 | 
	150
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	$
 | 
	17,640
 | 
	 
 | 
	 
 | 
	$
 | 
	(8
 | 
	)
 | 
	 
 | 
	$
 | 
	55
 | 
	 
 | 
	 
 | 
	$
 | 
	17,687
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	December 31, 2010:
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	U.S. government
	obligations, which
	included
	government-backed
	agencies
 
 | 
	 
 | 
	$
 | 
	11,034
 | 
	 
 | 
	 
 | 
	$
 | 
	
 | 
	 
 | 
	 
 | 
	$
 | 
	23
 | 
	 
 | 
	 
 | 
	$
 | 
	11,057
 | 
	 
 | 
| 
 
	Corporate debt securities
 
 | 
	 
 | 
	 
 | 
	2,016
 | 
	 
 | 
	 
 | 
	 
 | 
	
 | 
	 
 | 
	 
 | 
	 
 | 
	3
 | 
	 
 | 
	 
 | 
	 
 | 
	2,019
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	$
 | 
	15,144
 | 
	 
 | 
	 
 | 
	$
 | 
	
 | 
	 
 | 
	 
 | 
	$
 | 
	26
 | 
	 
 | 
	 
 | 
	$
 | 
	13,076
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	 
	8
 
	We had no realized gains or losses on the sale of available-for-sale securities for any of the
	periods presented. Unrealized gains and losses on our available-for-sale securities are excluded
	from earnings and are reported as a separate component of stockholders equity within accumulated
	other comprehensive income until realized. When and if available-for-sale securities are sold in
	the future, the cost of the securities will be specifically identified and used to determine any
	realized gain or loss. The net unrealized gain on available-for-sale securities was $47,000 and
	$26,000 as of March 31, 2011 and December 31, 2010, respectively.
	The amortized cost of and estimated fair value of available-for-sale securities at March 31, 2011
	by contractual maturity are shown below (in thousands). Actual maturities may differ from
	contractual maturities because the issuers of the securities may have the right to repay the
	obligations without prepayment penalties. Although the investments are available-for-sale, it is
	our intention to hold the investments classified as long-term, if any, for more than a year from
	March 31, 2011.
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	March 31, 2011
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	Amortized
 | 
	 
 | 
	 
 | 
	Estimated
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	Cost
 | 
	 
 | 
	 
 | 
	Fair Value
 | 
	 
 | 
| 
 
	Due in one year or less
 
 | 
	 
 | 
	$
 | 
	11,026
 | 
	 
 | 
	 
 | 
	$
 | 
	11,044
 | 
	 
 | 
| 
 
	Due after one year through two years
 
 | 
	 
 | 
	 
 | 
	
 | 
	 
 | 
	 
 | 
	 
 | 
	
 | 
	 
 | 
| 
 
	Mutual fund and an equity security
 
 | 
	 
 | 
	 
 | 
	6,614
 | 
	 
 | 
	 
 | 
	 
 | 
	6,643
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	$
 | 
	17,640
 | 
	 
 | 
	 
 | 
	$
 | 
	17,687
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	6. Collaborative Arrangements and Revenue Recognition
	Pfizer
	In December 2009, we entered into a collaboration with Pfizer to develop and commercialize
	MultiStem to treat inflammatory bowel disease (IBD) for the worldwide market. Under the terms of
	the agreement, we received a non-refundable up-front payment from Pfizer and receive research
	funding and support. In addition, we are also eligible to receive milestone payments upon the
	successful achievement of certain development, regulatory and commercial milestones, for which we
	evaluated the nature of the events triggering these contingent payments and concluded that these
	events constituted substantive milestones that will be recognized as revenue in the period in which
	the underlying triggering event occurs.
	Pfizer pays us for manufacturing product for clinical development and commercialization purposes.
	Pfizer has responsibility for development, regulatory and commercialization and will pay us tiered
	royalties on worldwide commercial sales of MultiStem IBD products. Alternatively, in lieu of
	royalties and certain commercialization milestones, we may elect to co-develop with Pfizer and the
	parties will
	share development and commercialization expenses and profits/losses on an agreed basis beginning at
	Phase III clinical development.
	 
	9
 
	We evaluated the facts and circumstances of the agreement and determined the Pfizer agreement has
	multiple deliverables that should be combined into a single unit of accounting. We are recognizing
	the license and technology access fee and research and development funding ratably on a
	straight-line basis over the estimated performance period, which is estimated to be completed in
	2012. Further, we are measuring manufacturing revenue beginning upon the culmination of the
	earnings process and recognizing it over the remainder of the performance period of the bundled
	unit of accounting. Prepaid license and technology access fee and prepaid research and development
	funding are recorded as deferred revenue and amortized on a straight-line basis over the
	performance period.
	Angiotech
	In our 2006 co-development collaboration with Angiotech to develop and commercialize MultiStem to
	treat acute myocardial infarction (AMI) for the worldwide market, we received initial equity
	investments and may also receive cash payments and an equity investment based on the successful
	achievement of specified clinical development and commercialization milestones. We evaluated the
	nature of the events triggering these contingent payments and concluded that these events
	constituted substantive milestones that will be recognized as revenue in the period in which the
	underlying triggering event occurs. The parties jointly fund clinical development activity. We
	have primary responsibility for early clinical development and clinical manufacturing, and
	Angiotech will take the lead on pivotal and later clinical trials and commercialization. The
	parties will share net profits from the future sale of approved products.
	We continue to jointly fund clinical development activities with Angiotech in accordance with our
	co-development collaboration, and $83,000 was due from Angiotech as of March 31, 2011. Our
	clinical costs for the three months ended March 31, 2011 and 2010 are reflected net of Angiotechs
	cost-sharing amount of $(23,000) and $244,000, respectively. The cost share for the three months
	ended March 31, 2011 was $91,000, but is net of a $114,000 final write down as our prepetition
	claims for reimbursement were settled by the courts in connection with Angiotechs bankruptcy
	proceedings. Angiotech assumed the collaboration agreement in the bankruptcy proceedings.
	RTI Biologics, Inc.
	In September 2010, we entered into an agreement with RTI, a provider of orthopedic and other
	biologic implants, under which we provided RTI a license to one of our technologies to enable RTI
	to develop and commercialize biologic implants exclusively for certain orthopedic applications in
	the bone graft substitutes market. Under the terms of the agreement, we received $3.0 million of
	guaranteed license fee payments and are entitled to receive $2.0 million of license fee payments
	contingent on future milestone events. We are also eligible to receive milestone payments upon the
	successful achievement of certain development and commercial milestones, including the two $1.0
	million contingent license fee payments mentioned above. We evaluated the nature of the events
	triggering these contingent license payments and concluded that these events are substantive and
	that revenue will be recognized in the period in which the underlying triggering event occurs. In
	addition, we will receive tiered royalties on worldwide commercial sales, if any, of implants using
	our technologies.
	We evaluated the facts and circumstances and determined the RTI agreement has multiple deliverables
	that should be combined into a single unit of accounting. We recognize the $3.0 million guaranteed
	license fee ratably on a straight-line basis over the estimated performance period, which is
	estimated to be completed in the fourth quarter of 2011.
	7. Stock-based Compensation
	Our equity incentive plans authorize an aggregate of 4,500,000 shares of common stock for awards to
	employees, directors and consultants. These incentive plans authorize the issuance of equity-based
	compensation in the form of stock options, stock appreciation rights, restricted stock, restricted
	stock units, performance shares and units, and other stock-based awards to qualified employees,
	directors and consultants.
	 
	10
 
	As of March 31, 2011, a total of 189,374 shares were available for issuance under our equity
	incentive plans and options to purchase 4,311,701 shares of common stock were outstanding (which
	includes options to purchase 1,075 shares of common stock related to our old option plans prior to
	our merger in June 2007). For the three-month period ended March 31, 2011, stock-based
	compensation expense was approximately $119,000. At March 31, 2011, total unrecognized estimated
	compensation cost related to unvested stock options was approximately $677,000, which is expected
	to be recognized by September 2014 using the straight-line method.
	8. Issuance of Common Stock and Warrants
	In February 2011, we completed a registered direct offering of 4,366,667 shares of common stock and
	five-year warrants to purchase 1,310,000 shares of common stock with an exercise price of $3.55 per
	share, generating net proceeds of $11.9 million. The securities were sold in multiples of a fixed
	combination of one share of common stock and a warrant to purchase 0.3 of a share of common stock
	at an offering price of $3.00 per fixed combination.
	In connection with the offering in February 2011, our former lenders were entitled to a milestone
	payment in the amount of $810,000, of which $202,500 was paid in cash and $607,500 was paid through
	the issuance of our common stock to the former lenders at $2.96 per share. This milestone payment
	is included in other expense in the consolidated statement of operations.
	9. Warrant Liability
	We account for common stock warrants as either liabilities or as equity instruments depending on
	the specific terms of the warrant agreement. Registered common stock warrants that could require
	cash settlement are accounted for as liabilities. We classify these warrant liabilities on the
	consolidated balance sheet as a non-current liability, which is revalued at each balance sheet date
	subsequent to the initial issuance. We use the Black-Scholes valuation model to value the warrant
	liability as its fair value. Changes in the fair market value of the warrant are reflected in the
	consolidated statement of operations as other income (expense).
	The warrants we issued in the February 2011 registered direct offering contain a provision for net
	cash settlement in the event that there is a fundamental transaction (e.g., merger, sale of
	substantially all assets, tender offer, or share exchange). If a fundamental transaction occurs in
	which the consideration issued consists of all cash or stock in a non-public company, then the
	warrant holder has the option to receive cash equal to the fair value of the remaining unexercised
	portion of the warrant. Also, the warrants generally provide that, in the event the related
	registration statement or an exemption from registration is not available for the issuance or
	resale of the warrant shares, the holder may exercise the warrant on a cashless basis. However,
	the warrant agreements do not expressly state that a net cash settlement is prohibited. Therefore,
	even though a cashless exercise feature is available to the holder, generally accepted accounting
	principles establish that, in the absence of an express prohibition on net cash settlement, the
	warrants may be subject to cash settlement, as it is not within the absolute control of the issuer
	to provide freely-tradable shares in all circumstances. The applicable accounting principles
	expressly do not allow for an evaluation of the likelihood that such an event would result in a
	cash settlement.
	 
	11
 
	The warrants issued in February 2011 have been classified as liabilities, as opposed to equity, due
	to the potential cash settlement upon the occurrence of certain events as described above, and are
	recorded at their fair values at the date of issuance of $1,795,000, and $2,070,000 at March 31, 2011.
	As of March 31, 2011, we had the following outstanding warrants to purchase shares of common stock:
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	Number of underlying shares
 | 
	 
 | 
	 
 | 
	Exercise Price
 | 
	 
 | 
	 
 | 
	Expiration
 | 
| 
	 
 | 
 
	4,976,470
 
 | 
	 
 | 
	 
 | 
	$
 | 
	6.00
 | 
	 
 | 
	 
 | 
	June 8, 2012
 | 
| 
	 
 | 
 
	149,026
 
 | 
	 
 | 
	 
 | 
	$
 | 
	5.00
 | 
	 
 | 
	 
 | 
	June 8, 2014
 | 
| 
	 
 | 
 
	1,310,000
 
 | 
	 
 | 
	 
 | 
	$
 | 
	3.55
 | 
	 
 | 
	 
 | 
	February 2, 2016
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	 
 | 
 
	6,435,496
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	10. Income Taxes
	We have net operating loss and research and development tax credit carryforwards that may be used
	to reduce future taxable income and tax liabilities. Our deferred tax assets have been fully offset
	by a valuation allowance due to our cumulative losses.
	 
	12
 
| 
 | 
 | 
 | 
| 
	Item 2.
 | 
	 
 | 
	Managements Discussion and Analysis of Financial Condition and Results of Operations.
 | 
 
	This discussion and analysis should be read in conjunction with our financial statements and notes
	thereto included in this Quarterly Report on Form 10-Q and the audited financial statement and
	notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2010.
	Operating results are not necessarily indicative of results that may occur in future periods.
	Overview and Recent Developments
	We are a biopharmaceutical company engaged in the discovery and development of therapeutic product
	candidates designed to extend and enhance the quality of human life. Through the application of our
	proprietary technologies, we have established a pipeline of therapeutic product development
	programs in multiple disease areas. Our current product development portfolio includes MultiStem, a
	patented and proprietary stem cell product that we are developing as a treatment for multiple
	disease indications, and is currently being evaluated in clinical trials. In addition, we are
	developing novel pharmaceuticals to treat indications such as obesity, related metabolic conditions
	such as diabetes, and certain neurological conditions.
	Current Programs
	By applying our proprietary cell therapy platform, MultiStem, we have established therapeutic
	product development programs in the areas of treating cardiovascular disease, neurological
	conditions, inflammatory and immune system disorders, and certain other conditions. To date, we
	have advanced four programs to clinical development stage, including:
| 
	 
 | 
	
 | 
	 
 | 
	An ongoing Phase II clinical study involving administration of MultiStem to patients
	suffering from ulcerative colitis, the most common form of IBD. This study is being
	conducted with our partner, Pfizer. This trial began enrolling patients in February 2011;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	A Phase I clinical study involving administration of MultiStem to patients that have
	suffered an AMI, more commonly referred to as a heart attack. We successfully completed
	patient enrollment for this study and announced initial results in 2010. We intend to
	initiate in 2011 with our partner, Angiotech, a Phase II study to evaluate the safety and
	efficacy of MultiStem administration to AMI patients;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	An ongoing Phase I clinical study involving administration of MultiStem to patients
	suffering from leukemia or related conditions, in which patients undergo radiation therapy
	and then receive a hematopoietic stem cell transplant. Such patients are at risk for
	serious complications, including graft-versus-host disease (GVHD), which is an imbalance
	of immune system function caused by transplanted immune cells that attack various tissues
	and organs in the patient. In January 2011, we announced that we had successfully
	completed enrollment for the single ascending dose portion of this clinical trial and
	expect to announce preliminary results in the second quarter of 2011. In addition, the
	multiple ascending dose portion of this study is ongoing; and
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	The FDA authorized us to conduct a clinical study to evaluate the safety of the
	administration of MultiStem to patients that have suffered an ischemic stroke. We are
	finalizing the planning and preparations of a study designed to enable us to evaluate both
	the safety and efficacy of MultiStem treatment, and plan to initiate and commence enrollment in this study in 2011.
 | 
 
	In addition to our current and anticipated clinical development activities, we are also engaged in
	preclinical development and evaluation of MultiStem in other disease indications in the
	cardiovascular, neurological, inflammatory and immune disorder, and other areas. We conduct such
	work both through our own internal research efforts and through a broad network of collaborations
	we have established with investigators at leading research institutions across the United States
	and in Europe.
	 
	13
 
	We are also engaged in the development of novel small molecule therapies to treat obesity and
	related metabolic conditions. We are conducting preclinical evaluation of novel compounds that we
	have developed and intend to select a clinical development candidate for this program in 2011.
	We are also working with our collaborator, RTI, to develop products for biologic implants for
	certain orthopedic applications in the bone graft substitutes market using one of our technologies.
	Financial
	In February 2011, we completed a registered direct offering of 4,366,667 shares of common stock and
	five-year warrants to purchase 1,310,000 shares of common stock with an exercise price of $3.55 per
	share, generating net proceeds of $11.9 million. The securities were sold in multiples of a fixed
	combination of one share of common stock and a warrant to purchase 0.3 of a share of common stock
	at an offering price of $3.00 per fixed combination.
	We have incurred losses since inception of operations in 1995 and had an accumulated deficit of
	$209 million at March 31, 2011. Our losses have resulted principally from costs incurred in
	research and development, clinical and preclinical product development, acquisition and licensing
	costs, and general and administrative costs associated with our operations. We have used the
	financing proceeds from private and public equity and debt offerings and other sources of capital
	to develop our technologies, to discover and develop therapeutic product candidates, and to acquire
	certain technologies and assets. We have also built drug development capabilities that have enabled
	us to advance product candidates into clinical trials. We have established strategic collaborations
	that have provided revenues and capabilities to help further advance our product candidates, and we
	have also built a substantial portfolio of intellectual property.
	Results of Operations
	Since our inception, our revenues have consisted of license fees, contract revenues and milestone
	payments from our collaborators, and grant proceeds primarily from federal and state grants. We
	have derived no revenue from the commercial sale of therapeutic products to date. Research and
	development expenses consist primarily of external clinical and preclinical study fees,
	manufacturing costs, salaries and related personnel costs, legal expenses resulting from
	intellectual property prosecution processes, facility costs, and laboratory supply and reagent
	costs. We expense research and development costs as they are incurred. We expect to continue to
	make significant investments in research and development to enhance our technologies, advance
	clinical trials of our product candidates, expand our regulatory affairs and product development
	capabilities, conduct preclinical studies of our product and manufacture our product candidates.
	General and administrative expenses consist primarily of salaries and related personnel costs,
	professional fees and other corporate expenses. We expect to continue to incur substantial losses
	through at least the next several years.
	The following tables set forth our revenues and expenses for the periods indicated and amounts
	are stated in thousands.
	Revenues
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	Three months ended
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	March 31,
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	2011
 | 
	 
 | 
	 
 | 
	2010
 | 
	 
 | 
| 
 
	Contract revenue
 
 | 
	 
 | 
	$
 | 
	2,501
 | 
	 
 | 
	 
 | 
	$
 | 
	1,395
 | 
	 
 | 
| 
 
	Grant revenue
 
 | 
	 
 | 
	 
 | 
	489
 | 
	 
 | 
	 
 | 
	 
 | 
	345
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	$
 | 
	2,990
 | 
	 
 | 
	 
 | 
	$
 | 
	1,740
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	 
	14
 
	Research and development expenses
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	Three months ended
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	March 31,
 | 
	 
 | 
| 
	Type of expense
 | 
	 
 | 
	2011
 | 
	 
 | 
	 
 | 
	2010
 | 
	 
 | 
| 
 
	Personnel costs
 
 | 
	 
 | 
	$
 | 
	1,185
 | 
	 
 | 
	 
 | 
	$
 | 
	952
 | 
	 
 | 
| 
 
	Research supplies
 
 | 
	 
 | 
	 
 | 
	333
 | 
	 
 | 
	 
 | 
	 
 | 
	262
 | 
	 
 | 
| 
 
	Facilities
 
 | 
	 
 | 
	 
 | 
	256
 | 
	 
 | 
	 
 | 
	 
 | 
	219
 | 
	 
 | 
| 
 
	Clinical and preclinical development
	costs
 
 | 
	 
 | 
	 
 | 
	1,605
 | 
	 
 | 
	 
 | 
	 
 | 
	478
 | 
	 
 | 
| 
 
	Sponsored research
 
 | 
	 
 | 
	 
 | 
	436
 | 
	 
 | 
	 
 | 
	 
 | 
	205
 | 
	 
 | 
| 
 
	Patent legal fees
 
 | 
	 
 | 
	 
 | 
	416
 | 
	 
 | 
	 
 | 
	 
 | 
	301
 | 
	 
 | 
| 
 
	Other
 
 | 
	 
 | 
	 
 | 
	314
 | 
	 
 | 
	 
 | 
	 
 | 
	252
 | 
	 
 | 
| 
 
	Stock-based compensation
 
 | 
	 
 | 
	 
 | 
	43
 | 
	 
 | 
	 
 | 
	 
 | 
	153
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	$
 | 
	4,588
 | 
	 
 | 
	 
 | 
	$
 | 
	2,822
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	General and administrative expenses
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	Three months ended
 | 
	 
 | 
| 
	 
 | 
	 
 | 
	March 31,
 | 
	 
 | 
| 
	Type of expense
 | 
	 
 | 
	2011
 | 
	 
 | 
	 
 | 
	2010
 | 
	 
 | 
| 
 
	Personnel costs
 
 | 
	 
 | 
	$
 | 
	544
 | 
	 
 | 
	 
 | 
	$
 | 
	480
 | 
	 
 | 
| 
 
	Facilities
 
 | 
	 
 | 
	 
 | 
	68
 | 
	 
 | 
	 
 | 
	 
 | 
	67
 | 
	 
 | 
| 
 
	Legal and professional fees
 
 | 
	 
 | 
	 
 | 
	263
 | 
	 
 | 
	 
 | 
	 
 | 
	282
 | 
	 
 | 
| 
 
	Other
 
 | 
	 
 | 
	 
 | 
	268
 | 
	 
 | 
	 
 | 
	 
 | 
	311
 | 
	 
 | 
| 
 
	Stock-based compensation
 
 | 
	 
 | 
	 
 | 
	76
 | 
	 
 | 
	 
 | 
	 
 | 
	297
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	$
 | 
	1,219
 | 
	 
 | 
	 
 | 
	$
 | 
	1,437
 | 
	 
 | 
| 
 
	 
 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	Three Months Ended March 31, 2011 and 2010
	Revenues
	. Revenues increased to $3.0 million for the three months ended March 31, 2011 from $1.7
	million in the comparable period in 2010. Contract revenue increased $1.1 million for the three
	months ended March 31, 2011 compared to the three months ended March 31, 2010, primarily as a
	result of our multi-element arrangements with Pfizer and RTI. We expect our contract revenues
	related to the Pfizer collaboration in 2011 and 2012 to reflect the amortization of a $6.0 million
	non-refundable up-front license fee, research and development funding, and the performance of
	manufacturing services over the estimated performance period, and expect our contract revenues
	related to the RTI collaboration to reflect the amortization of a $3.0 million license fee over the
	next few quarters aligned with the estimated performance period. Our contract revenues may also
	include license fees, milestone payments and royalties on compounds developed by Bristol-Myers
	Squibb using our technology. Grant revenue increased $144,000 for the three months ended March 31,
	2011 compared to the three months ended March 31, 2010 primarily due to new grants that started
	late in 2010. Our grant revenues could
	fluctuate from period-to-period based on the timing of grant-related activities and the award of
	new grants.
	 
	15
 
	Research and Development Expenses.
	Research and development expenses increased to $4.6 million for
	the three months ended March 31, 2011 from $2.8 million in the comparable period in 2010. The
	increase of approximately $1.8 million related primarily to an increase in clinical and preclinical
	development costs of $1.1 million, an increase in personnel costs of $233,000, an increase in
	sponsored research of $231,000, an increase in other research and development expenses of $170,000
	and an increase in patent legal fee expense of $115,000 for the three months ended March 31, 2011
	from the comparable period in 2010. These increases were partially offset by a decrease in
	stock-based compensation expense of $110,000 for the three months ended March 31, 2011 from the
	comparable period in 2010. The increase in personnel costs related to the addition of personnel in
	support of our preclinical and clinical programs over the past twelve months, combined with the
	accrual of a company-wide bonus pursuant to a Board-approved compensation plan. Sponsored research
	costs increased primarily due to an increase in grant-funded programs that require collaboration
	with certain academic research institutions. Patent legal fees increased related to international
	patent prosecution activities. The increase in clinical and preclinical development costs for the
	three months ended March 31, 2011 related primarily to increased manufacturing and process
	development costs, and costs associated with our MultiStem clinical trials. Our clinical costs for
	the three months ended March 31, 2011 and 2010 are reflected net of Angiotechs cost-sharing amount
	of $(23,000) and $244,000, respectively. The cost share for the three months ended March 31, 2011
	was $91,000, but is net of a $114,000 final write down as determined by the court in Angiotechs
	bankruptcy proceedings. We expect our research and development expenses to increase in 2011,
	primarily due to increased MultiStem clinical trial and clinical manufacturing expenses. Other than
	external expenses for our clinical and preclinical programs, we do not track our research expenses
	by project; rather, we track such expenses by the type of cost incurred.
	General and Administrative Expenses.
	General and administrative expenses decreased to $1.2 million
	for the three months ended March 31, 2011 from $1.4 million in the comparable period in 2010. The
	$218,000 decrease was due primarily to a decrease in stock-based compensation expense of $221,000
	and a decrease in other expenses of $43,000, partially offset by an increase in personnel costs of
	$64,000 for the three months ended March 31, 2011 from the comparable period in 2010. The decrease
	in stock-based compensation expense related to a significant number of options becoming fully
	vested mid-2010. The increase in personnel costs related to the accrual of a Company-wide bonus
	pursuant to a Board approved compensation plan. We expect our general and administrative expenses
	to continue at similar levels during 2011.
	Depreciation
	. Depreciation expense decreased to $60,000 for the three months ended March 31,
	2011 from $75,000 in the comparable period in 2010, as more assets are becoming fully
	depreciated.
	Interest Income, net.
	Interest income represents interest income earned on our cash and
	available-for-sale securities. Net interest income decreased to $33,000 for the three months ended
	March 31, 2011 from $61,000 for the comparable period in 2010 due to the decline in our investment
	balances as they are used to fund our operations. We expect our 2011 interest income to decline
	over the course of the year due to declining cash balances resulting from our ongoing and planned
	clinical and preclinical development, absent any new financings or business transactions.
	Other Expense.
	Other expense includes foreign currency gains and losses, if any, related to our
	activities in Europe and certain contracts denominated in foreign currencies. Also included in
	other expense in 2011 is a milestone payment of $810,000 to our former lenders that was paid in
	connection with our February 2011 registered direct offering, 75% of which was settled in shares of
	common stock. Also, in February 2011, we issued warrants to purchase common stock that are
	classified as liabilities, with changes in market value reflected as either other income or
	expense. For the three months ended March 31, 2011, other expense of $275,000 was recorded from
	the increase in the warrant liability.
	Other expense increased to $1.1 million for the three months ended March 31, 2011 from $28,000 in
	the comparable period in 2010 as a result of these transactions.
	 
	16
 
	Liquidity and Capital Resources
	Our sources of liquidity include our cash balances and available-for-sale securities. At March 31,
	2011, we had $7.6 million in cash and cash equivalents and $17.7 million in available-for-sale
	securities. We have primarily financed our operations through equity and debt financings. We
	conduct all of our operations through our wholly-owned subsidiary, ABT Holding Company.
	Consequently, our ability to fund our operations depends on ABT Holding Companys financial
	condition and its ability to make dividend payments or other cash distributions to us. There are no
	restrictions such as government regulations or material contractual arrangements that restrict the
	ability of ABT Holding Company to make dividend and other payments to us.
	In February 2011, we completed a registered direct offering of 4,366,667 shares of common stock and
	five-year warrants to purchase 1,310,000 shares of common stock with an exercise price of $3.55 per
	share, generating net proceeds of $11.9 million. The securities were sold in multiples of a fixed
	combination of one share of common stock and a warrant to purchase 0.3 of a share of common stock
	at an offering price of $3.00 per fixed combination.
	Our former lenders have a right to receive a milestone payment of $1.44 million as of March 31,
	2011, after taking into account a payment of $810,000 in conjunction with our February 2011
	registered direct offering. Further payments will be made upon the occurrence of certain events as
	follows: (1) the entire amount upon (a) the merger with or into another entity where our
	stockholders do not hold at least a majority of the voting power of the surviving entity, (b) the
	sale of all or substantially all of our assets, or (c) our liquidation or dissolution; or (2) a
	portion of the amount from proceeds of equity financings not tied to specific research and
	development activities that are part of a research or development collaboration, in which case, the
	lenders will receive an amount equal to 10% of proceeds above $5.0 million in cumulative gross
	proceeds until the milestone amount is paid in full. The milestone payment is payable in cash,
	except that if the milestone event is (2) above, we may elect to pay 75% of the milestone in shares
	of common stock at the per-share offering price. In connection with the registered direct offering
	in February 2011, the former lenders were entitled to a milestone payment under this commitment in
	the amount of $810,000, of which $202,500 was paid in cash and $607,500 was paid through the
	issuance of our common stock at $2.96 per share in February 2011. The former lenders also received
	warrants to purchase 149,026 shares of common stock with an exercise price of $5.00 upon the
	closing of our equity offering in June 2007. The exercise of such warrants could provide us with
	cash proceeds. No warrants were exercised as of March 31, 2011.
	Under the terms of our agreement with Pfizer, we receive research funding and support, and we are
	also eligible to receive milestone payments of up to $105 million upon the successful achievement
	of certain development, regulatory and commercial milestones, though there can be no assurance that
	we will achieve any milestones. Pfizer pays us for manufacturing product for clinical development
	and commercialization purposes. Pfizer has responsibility for development, regulatory and
	commercialization and will pay us tiered royalties on worldwide commercial sales of MultiStem IBD
	products. Alternatively, in lieu of royalties and certain commercialization milestones, we may
	elect to co-develop with Pfizer and the parties will share development and commercialization
	expenses and profits/losses on an agreed basis beginning at Phase III clinical development.
	 
	17
 
	In connection with our MultiStem collaboration with Angiotech, upon the successful achievement of
	specified clinical development and commercialization milestones, we may also receive up to $63.75
	million of aggregate cash payments and $3.75 million from an additional equity investment, though
	there can be no assurance that we will achieve any milestones. No milestone payments have been
	received as of March 31, 2011. Under the terms of the collaboration, the parties are jointly
	funding clinical development activity, whereby preclinical costs are borne solely by us, costs for
	Phase I and Phase II clinical trials are borne 50% by us and 50% by Angiotech, costs for the first Phase III
	clinical trial will be borne 33% by us and 67% by Angiotech, and costs for any subsequent Phase III
	clinical trial will be borne 25% by us and 75% by Angiotech. We have lead responsibility for
	preclinical and early clinical development and manufacturing of the MultiStem product, and
	Angiotech has lead responsibility for later clinical trials and commercialization. Upon product
	commercialization, we will receive nearly half of the net profits from the sale of any jointly
	developed, approved products. In April 2011, the court approved Angiotechs plan for
	recapitalization through its voluntary filing under the Companies Creditors Arrangement Act in
	Canada, under which our prepetition claims for reimbursement were settled resulting in a $114,000
	loss. Although Angiotech has assumed the collaboration agreement in the bankruptcy proceedings, in
	the event that Angiotech fails to fund its ongoing obligations under the terms of the collaboration
	agreement, our net costs for subsequent AMI
	clinical trials would increase or alternative funding would be required for such clinical trials.
	However, under these circumstances, Angiotech would be deemed to have opted out of continued
	development, losing rights to such product candidate; or such failure could constitute a breach
	that would be the basis for termination of the collaboration agreement by Athersys.
	Under the terms of our RTI agreement, we received $3.0 million of guaranteed license fee payments, of which $1.0 million was received in the first quarter of 2011, and are entitled to $2.0 million of license fee payments contingent on future
	events. We are also eligible to receive an additional $35.5 million in cash payments upon the
	successful achievement of certain development and commercial milestones, though there can be no
	assurance that we will achieve any milestones. No milestone payments have been received as of March
	31, 2011. In addition, we will receive tiered royalties on worldwide commercial sales of implants
	using our technologies.
	We will remain entitled to receive license fees for targets that were delivered to Bristol-Myers
	Squibb under our completed 2001 collaboration, as well as milestone payments and royalties on
	compounds developed by Bristol-Myers Squibb using our technology, though there can be no assurance
	that we will achieve any milestones or royalties. As of March 31, 2011, we have received an
	aggregate amount of $2.0 million in milestone payments and $8.1 million in license fees since inception under the collaboration with Bristol-Myers
	Squibb.
	Our available-for-sale securities typically include U.S. government obligations, corporate debt
	securities, fixed income mutual funds and corporate securities. As of March 31, 2011,
	approximately 57% of our investments were in U.S. government obligations, including
	government-backed agencies, and 37% of our investments were in a fixed income mutual fund. We have
	been investing conservatively due to the ongoing economic conditions and have prioritized liquidity
	and the preservation of principal in lieu of potentially higher returns. As a result, we have
	experienced no losses on the principal of our investments and have held our investments until
	maturity. Also, although unfavorable market and economic conditions have resulted in a decrease to
	our market capitalization, there has been no impairment to the value of our assets. Our fixed
	assets are used for internal research and development and, therefore, are not impacted by these
	external factors.
	We will require substantial additional funding in order to continue our research and product
	development programs, including preclinical testing and clinical trials of our product candidates.
	We expect to have available cash to fund our operations at least through mid-2012 based on our
	current business and operational plans and assuming no new financings or collaborations. Our
	capital requirements beyond that will depend on a number of factors, including scientific progress
	in our research and development programs, additional personnel costs, progress in preclinical
	testing and clinical trials, and the costs in filing and prosecuting patent applications and
	enforcing patent claims. Further, these requirements may change at any time due to technological
	advances or competition from other companies. We will continue to explore and consider new
	opportunities for funding our operations and activities through grants and business partnerships
	involving our technologies and product candidates, as well as selling equity securities and
	possibly borrowings from financial institutions. We cannot assure you that adequate funding will be
	available to us or, if available, that it will be available on acceptable terms. Any shortfall in
	funding could result in our having to curtail research and development efforts.
	 
	18
 
	We expect to continue to incur substantial losses through at least the next several years and may
	incur losses in subsequent periods. The amount and timing of our future losses are highly
	uncertain. Our ability to achieve and thereafter sustain profitability will be dependent upon,
	among other things, successfully developing, obtaining regulatory approval or clearances for, and
	commercializing our technologies and products resulting from these technologies.
	Net cash used in operating activities was $1.8 million for the three months ended March 31, 2011
	and $3.6 million for the three months ended March 31, 2010, and represented the receipt of $1.5 million in license fees and milestone payments and the use of cash in
	funding preclinical and clinical product development activities. We expect that net cash used in
	operating activities will increase in 2011 in connection with increased research and development
	expenses of our MultiStem clinical trials and our Pfizer and Angiotech collaborations.
	Net cash used in investing activities was $4.6 million for the three months ended March 31, 2011
	and net cash provided by investing activities was $2.8 million for the three months ended March 31,
	2010. The fluctuations from period-to-period were due to the timing of purchases and maturity dates
	of investments and the purchase of equipment. Purchases of equipment were $62,000 and $257,000 in
	the first quarter of 2011 and 2010, respectively. We expect that our capital equipment
	expenditures will continue at similar levels in 2011 compared to 2010.
	Net cash provided from financing activities was $11.9 million for the three months ended March 31,
	2011 and $0 for the three months ended March 31, 2010, as a result of our February 2011 registered
	direct offering.
	Investors in our February 2011 registered offering received five-year warrants to purchase an
	aggregate of 1,310,000 shares of common stock with an exercise price of $3.55 per share. The
	exercise of such warrants could provide us with cash proceeds. No warrants have been exercised at
	March 31, 2011.
	Investors in our equity offering in June 2007 received five-year warrants to purchase an aggregate
	of 3,250,000 shares of common stock with an exercise price of $6.00 per share. The lead investor in
	the June offering received additional five-year warrants to purchase an aggregate of 500,000 shares
	of common stock with a cash or cashless exercise price of $6.00 per share. The placement agents for
	the June 2007 offering received five-year warrants to purchase an aggregate of 1,093,525 shares of
	common stock with a cash or cashless exercise price of $6.00 per share. Also, investors that
	participated in a bridge financing in 2006 received in the June 2007 offering five-year warrants to
	purchase an aggregate of 132,945 shares of common stock with an exercise price of $6.00 per share.
	The exercise of such warrants could provide us with cash proceeds. No warrants have been exercised
	at March 31, 2011.
	We have no off-balance sheet arrangements.
	Critical Accounting Policies and Management Estimates
	The SEC defines critical accounting policies as those that are, in managements view, important to
	the portrayal of our financial condition and results of operations and demanding of managements
	judgment. Our discussion and analysis of financial condition and results of operations are based on
	our consolidated financial statements, which have been prepared in accordance with U.S. generally
	accepted accounting principles, or GAAP. The preparation of these financial statements requires us
	to make estimates on experience and on various assumptions that we believe are reasonable under the
	circumstances, the results of which form the basis for making judgments about the carrying values
	of assets and liabilities that are not readily apparent from other sources. Actual results may
	differ from those estimates. A description of these accounting policies and estimates is included
	in Item 7 Managements Discussion and Analysis of Financial Condition and Results of Operations
	in our Annual Report on Form 10-K for the year ended December 31, 2010. There have been no material
	changes in our accounting polices and estimates as described in our Annual Report. For additional
	information regarding our accounting policies, see Note B to the Consolidated Financial Statements
	in our Annual Report on Form 10-K for the year ended December 31, 2010.
	 
	19
 
	Recently Issued Accounting Standards
	In September 2009, Accounting Standards Codification (ASC) 605-25
	, Multiple-Element Arrangements
	,
	was updated (Accounting Standards Update (ASU) No. 2009-13) related to revenue recognition for
	arrangements with multiple elements. The revised guidance provides for two significant changes to
	the existing guidance, the first relates to the determination of when the individual deliverables
	included in a multiple-element arrangement may be treated as separate units of accounting, which
	will likely result in the requirement to separate more deliverables within an arrangement leading
	to less revenue deferral. The second change modifies the manner in which the transaction
	consideration is allocated across the separately identified deliverables. Together, these changes
	are likely to result in earlier recognition of revenue for multiple-element arrangements than under
	previous guidance. The new guidance also significantly expands the disclosures required for
	multiple-element revenue arrangements. The new guidance was effective for us for new arrangements
	or modifications to existing arrangements entered into on or after January 1, 2011 and had no
	effect on our financial statements for the quarter ended March 31, 2011. The adoption of this new
	guidance may have the potential effect of less future revenue deferral for new collaborations than
	we have historically experienced.
	In March 2010, ASC 605-28,
	Milestone Method of Revenue Recognition
	, was amended (ASU No. 2010-17)
	related to the ratification of the application of the proportional performance model of revenue
	recognition when applied to milestones in research and development arrangements. Accordingly, the
	consensus states that an entity can make an accounting policy election to recognize a payment that
	is contingent upon the achievement of a substantive milestone in its entirety in the period in
	which the milestone is achieved. The new guidance was effective for us for new arrangements entered
	into on or after January 1, 2011. The adoption of this guidance had no effect on our financial
	statements, since we have been historically recognizing milestone revenue consistent with this
	guidance.
	Cautionary Note on Forward-Looking Statements
	This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of the
	Private Securities Litigation Reform Act of 1995 that involve risks and uncertainties. These
	forward-looking statements relate to, among other things, the expected timetable for development of
	our product candidates, our growth strategy, and our future financial performance, including our
	operations, economic performance, financial condition, prospects, and other future events. We have
	attempted to identify forward-looking statements by using such words as anticipates, believes,
	can, continue, could, estimates, expects, intends, may, plans, potential,
	should, will, or other similar expressions. These forward-looking statements are only
	predictions and are largely based on our current expectations. These forward-looking statements
	appear in a number of places in this Quarterly Report on Form 10-Q.
	In addition, a number of known and unknown risks, uncertainties, and other factors could affect the
	accuracy of these statements. Some of the more significant known risks that we face are the risks
	and uncertainties inherent in the process of discovering, developing, and commercializing products
	that are safe and effective for use as human therapeutics, including the uncertainty regarding
	market acceptance of our product candidates and our ability to generate revenues. These risks may
	cause our actual results, levels of activity, performance, or achievements to differ materially
	from any future results, levels of activity, performance, or achievements expressed or implied by
	these forward-looking statements.
	 
	20
 
	Other important factors to consider in evaluating our forward-looking statements include:
| 
	 
 | 
	
 | 
	 
 | 
	the possibility of delays in, adverse results of and excessive costs of the
	development process;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	our ability to successfully initiate and complete clinical trials;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	changes in external market factors;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	changes in our industrys overall performance;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	changes in our business strategy;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	our ability to protect our intellectual property portfolio;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	our possible inability to realize commercially valuable discoveries in our
	collaborations with pharmaceutical and other biotechnology companies;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	our ability to meet milestones under our collaboration agreements;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	our collaborators ability to continue to fulfill their obligations under the terms
	of our collaboration agreements, including Angiotech;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	our possible inability to execute our strategy due to changes in our industry or the
	economy generally;
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	changes in productivity and reliability of suppliers; and
 | 
| 
	 
 | 
| 
	 
 | 
	
 | 
	 
 | 
	the success of our competitors and the emergence of new competitors.
 | 
 
	Although we currently believe that the expectations reflected in the forward-looking statements are
	reasonable, we cannot guarantee our future results, levels of activity or performance. We
	undertake no obligation to publicly update forward-looking statements, whether as a result of new
	information, future events or otherwise, except as required by law. You are advised, however, to
	consult any further disclosures we make on related subjects in our reports on Forms 10-Q, 8-K and
	10-K furnished to the SEC. You should understand that it is not possible to predict or identify
	all risk factors. Consequently, you should not consider any such list to be a complete set of all
	potential risks or uncertainties.
| 
 | 
 | 
 | 
| 
	Item 3.
 | 
	 
 | 
	Quantitative and Qualitative Disclosures About Market Risk.
 | 
 
	Interest Rate Risk
	Our exposure to interest rate risk is related to our investment portfolio and our borrowings. Fixed
	rate investments and borrowings may have their fair market value adversely impacted from changes in
	interest rates. Due in part to these factors, our future investment income may fall short of
	expectations. Further, we may suffer losses in investment principal if we are forced to sell
	securities that have declined in market value due to changes in interest rates. We invest our
	excess cash primarily in debt instruments of the U.S. government and its agencies, corporate debt
	securities, fixed income mutual funds, and a corporate security. As of March 31, 2011,
	approximately 57% of our investments were in U.S. government obligations, including
	government-backed agencies, and 37% of our investments were in a fixed income mutual fund. We have
	been investing conservatively due to the current economic conditions and have prioritized liquidity
	and the preservation of principal in lieu of potentially higher returns. As a result, we have
	experienced no losses on the principal of our investments.
	 
	21
 
	We enter into loan arrangements with financial institutions when needed and when available to us.
	At March 31, 2011, we had no borrowings outstanding.
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| 
	Item 4.
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	Controls and Procedures.
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	Disclosure controls and procedures
	Our management, under the supervision of and with the participation of our Chief Executive Officer
	and our Vice President of Finance, has evaluated the effectiveness of our disclosure controls and
	procedures, as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934,
	as of the end of the period covered by this quarterly report on Form 10-Q. Based upon this
	evaluation, our Chief Executive Officer and Vice President of Finance have concluded that, as of the
	end of the period covered by this quarterly report on Form 10-Q, our disclosure controls and
	procedures were effective.
	Changes in internal control over financial reporting
	During the first quarter of 2011, there has been no change in our internal control over financial
	reporting (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934)
	that has materially affected, or is reasonably likely to materially affect, our internal control
	over financial reporting.
	 
	22
 
	PART II. OTHER INFORMATION
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| 
	Item 2.
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	Unregistered Sales of Equity Securities and Use of Proceeds
 | 
 
	On February 2, 2011, the Company issued 205,236 shares of its common stock to its former lenders
	pursuant to a 2004 loan agreement. The issuance of these unregistered shares qualifies as an
	exempt transaction pursuant to Section 4(2) of the Securities Act of 1933. These securities
	qualified for exemption under Section 4(2) of the Securities Act of 1933 because the issuance by
	the Company did not involve a public offering. The offering was not a public offering due to the
	number of persons involved, the manner of the issuance and the number of securities issued. In
	addition, the lenders had the necessary investment intent since they agreed to and received share
	certificates bearing a legend stating that such securities are restricted.
| 
	 
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| 
	Exhibit No.
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	Description
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| 
	 
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 | 
	 
 | 
 
	 
 
 | 
| 
	 
 | 
	10.49
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	Form of Nonqualified Stock Option Agreement for Non-Employee Directors
 
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| 
	 
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| 
	 
 | 
	31.1
 | 
	 
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 | 
 
	Certification of Gil Van Bokkelen, Chairman and Chief Executive Officer,
	pursuant to SEC Rules 13a-14(a) and 15d-14(a) adopted pursuant to Section 302 of the
	Sarbanes-Oxley Act of 2002.
 
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| 
	 
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| 
	 
 | 
	31.2
 | 
	 
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	Certification of Laura K. Campbell, Vice President of Finance, pursuant to SEC
	Rules 13a-14(a) and 15d-14(a) adopted pursuant to Section 302 of the Sarbanes-Oxley
	Act of 2002.
 
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| 
	 
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 | 
 
	 
 
 | 
| 
	 
 | 
	32.1
 | 
	 
 | 
	 
 | 
 
	Certification of Gil Van Bokkelen, Chairman and Chief
	Executive Officer, and Laura Campbell, Vice President, Finance, pursuant to 18 U.S.C.
	Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
 | 
 
	 
	23
 
	SIGNATURES
	Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused
	this report to be signed on its behalf by the undersigned thereunto duly authorized.
| 
	 
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| 
	 
 | 
	ATHERSYS, INC.
 
	 
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| 
	Date: May 5, 2011 
 | 
	/s/ Gil Van Bokkelen
	 
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| 
	 
 | 
	Gil Van Bokkelen 
 | 
	 
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| 
	 
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	Chairman and Chief Executive Officer
 
	(principal executive officer authorized to sign on
 
	behalf of the registrant) 
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| 
	 
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| 
	 
 | 
	/s/ Laura K. Campbell
	 
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| 
	 
 | 
	Laura K. Campbell 
 | 
	 
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| 
	 
 | 
	Vice President of Finance
 
	(principal financial and accounting officer
 
	authorized to sign on behalf of the registrant) 
 | 
	 
 | 
	 
	24
 
	EXHIBIT INDEX
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
| 
	Exhibit No.
 | 
	 
 | 
	Description
 | 
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	 
 
 | 
| 
	 
 | 
	10.49
 | 
	 
 | 
	 
 | 
 
	Form of Nonqualified Stock Option Agreement for Non-Employee Directors
 
 | 
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	 
 
 | 
| 
	 
 | 
	31.1
 | 
	 
 | 
	 
 | 
 
	Certification of Gil Van Bokkelen, Chairman and Chief Executive Officer,
	pursuant to SEC Rules 13a-14(a) and 15d-14(a) adopted pursuant to Section 302 of the
	Sarbanes-Oxley Act of 2002.
 
 | 
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	 
 
 | 
| 
	 
 | 
	31.2
 | 
	 
 | 
	 
 | 
 
	Certification of Laura K. Campbell, Vice President of Finance, pursuant to
	SEC Rules 13a-14(a) and 15d-14(a) adopted pursuant to Section 302 of the
	Sarbanes-Oxley Act of 2002.
 
 | 
| 
	 
 | 
	 
 | 
	 
 | 
	 
 | 
 
	 
 
 | 
| 
	 
 | 
	32.1
 | 
	 
 | 
	 
 | 
 
	Certification of Gil Van Bokkelen, Chairman and Chief Executive Officer, and
	Laura Campbell, Vice President of Finance, pursuant to 18 U.S.C. Section 1350, adopted
	pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
 
 | 
 
	 
	25