NxStage Medical Reports First Quarter 20...((13899) (11993) Provision fo...),Health

Provision for income taxes 45 -

Net loss $(13,944) $(11,993)

Net loss per share, basic and diluted $(0.38) $(0.41)

Weighted-average shares outstanding,

basic and diluted 36,774 29,020

NxStage Medical, Inc.

Consolidated Balance Sheets

(amounts in thousands, except per share data)

(unaudited)

March 31, December 31,

2008 2007

ASSETS

Current assets:

Cash and cash equivalents $16,181 $33,245

Short-term investments - 1,100

Accounts receivable, net 11,027 7,990

Due from affiliate 435 435

Inventory 40,160 29,965

Prepaid expenses and other current assets 1,606 2,455

Total current assets 69,409 75,190

Property and equipment, net 12,937 12,146

Field equipment, net 31,812 30,885

Deferred cost of revenues 18,709 14,850

Intangible assets, net 33,102 33,801

Goodwill 41,462 41,457

Other assets 2,074 2,057

Total assets $209,505 $210,386

LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:

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