TranS1 Inc. Reports Operating Results for the Second Quarter of 2008




 Highlights:

 Second quarter revenues increased 46% to $6.0 million compared to 
 the second quarter of 2007

 703 TranS1 procedures performed in the quarter

 Gross margin was 80.9% for the quarter

 GAAP loss per share was $0.26 for the quarter

 Non-GAAP loss per share was $0.20 for the quarter

 Received FDA 510(k) Clearance for the AxiaLIF 2L, Two Level 
 Percutaneous Lumbar Fusion System

 First Patients Treated with Percutaneous Nucleus Replacement, 
 PNR(r), in Europe

WILMINGTON, N.C., July 31, 2008 (PRIME NEWSWIRE) -- TranS1 Inc. (Nasdaq:TSON), a medical device company focused on designing, developing and marketing products that implement its proprietary minimally invasive surgical approach to treat degenerative disc disease affecting the lower lumbar region of the spine, today announced its financial results for the second quarter ended June 30, 2008.

Revenues were $6.0 million in the second quarter of 2008, representing a 46% increase over revenues of $4.1 million in the second quarter of 2007. Gross margin was 80.9% in the second quarter, an increase from 78.7% in the second quarter of 2007.

Operating expenses were $10.8 million in the second quarter of 2008 compared to $5.8 million in the second quarter of 2007. The increase in operating expenses is primarily attributable to an increase in sales and marketing costs as a result of the continued expansion of the direct sales force, increased commissions as a result of increased sales and increased surgeon training costs. Additionally, general and administrative costs increased primarily due to the addition of personnel and increased legal and professional fees.

Net loss was $5.3 million and $2.4 million for the quarters ended June 30, 2008 and 2007, respectively. GAAP net loss per common share was $0.26 in the second quarter of 2008 compared to a net loss per share of $0.98 in the second quarter of 2007.

For the quarter ended June 30, 2008, on a non-GAAP basis, adjusting for non-cash stock compensation expense, net loss was $0.20 per common share based upon 20,212,000 weighted average common shares outstanding. For the quarter ended June 30, 2007, on a non-GAAP basis, adjusting for non-cash stock compensation expense, the issuance of 6.3 million shares of common stock from the company's initial public offering in October 2007 and the conversion of preferred stock into common stock in connection with the public offering, net loss was $0.09 per common share based upon 19,601,000 weighted average common shares outstanding.

Cash, cash-equivalents and investments were $87.8 million as of June 30, 2008.

Richard Randall, President and Chief Executive Officer of TranS1 said, "Although we fell short of our sales objectives for the quarter, I remain confident that the continued maturation of our sales force, combined with the addition of our 2-Level product, which addresses a much larger market at a higher average selling price, positions us for strong growth in 2008 and beyond."

Conference Call

TranS1 will host a conference call today at 4:30 pm EDT to discuss its second quarter financial results. To listen to the conference call on your telephone, please dial 877-440-5784 for domestic callers and 719-325-4943 for international callers approximately ten minutes prior to the start time. The call will be concurrently webcast. To access the live audio broadcast or the subsequent archived recording, visit the TranS1 Web site at www.trans1.com under the investor relations section.

Non-GAAP Measures

Management uses certain non-GAAP financial measures such as non-GAAP net loss and net loss per share, which exclude stock based compensation and include the assumed conversion of preferred stock to common stock. This non-GAAP presentation is given in part to enhance the understanding of the company's historical financial performance and comparability between periods. The company believes that the non-GAAP presentation to exclude stock-based compensation and the assumed conversion of preferred stock to common stock is relevant and useful information that will be widely used by investors and analysts. Accordingly, the company is disclosing this information to permit additional analysis of the company's performance. These non-GAAP measures are not in accordance with, or an alternative for, GAAP, and may be different from non-GAAP measures used by other companies. Investors should consider these non-GAAP measures in addition to, and not as a substitute for, financial performance measures in accordance with GAAP. A reconciliation of the GAAP financial measures to the comparable non-GAAP financial measure is included below.

About TranS1 Inc.

TranS1 is a medical device company focused on designing, developing and marketing products that implement its proprietary minimally invasive surgical approach to treat degenerative disc disease affecting the lower lumbar region of the spine. TranS1 currently markets two single-level fusion products, the AxiaLIF(r) and the AxiaLIF 360(tm), and a two-level fusion product, the AxiaLIF 2L(tm), in the U.S. and Europe. TranS1 was founded in May 2000 and is headquartered in Wilmington, North Carolina. For more information, visit www.trans1.com.

Forward-Looking Statements

This press release includes forward-looking statements, the accuracy of which is necessarily subject to risks and uncertainties. These risks and uncertainties include, among other things, risks associated with the adoption of a new technology by spine surgeons, product development efforts, regulatory requirements, maintenance and prosecution of adequate intellectual property protection and other economic and competitive factors. These forward-looking statements are based on the company's expectations as of the date of this press release and the company undertakes no obligation to update information provided in this press release. For a discussion of risks and uncertainties associated with TranS1's business, please review the company's filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K for the year ended December 31, 2007.



                              TranS1 Inc.
                       Statements of Operations
                (in thousands, except per share amounts)
                              (Unaudited)


                              Three Months Ended     Six Months Ended
                                   June 30,              June 30,
                              ------------------   -------------------
                                2008      2007       2008       2007
                              --------  --------   --------   --------
                                                             
 Revenue                      $ 5,951   $ 4,072    $11,929    $ 7,187
 Cost of revenue                1,137       869      2,175      1,459
                              --------  --------   --------   --------
 Gross profit                   4,814     3,203      9,754      5,728
                              --------  --------   --------   --------
 Operating expenses:
 Research and development       1,562     1,390      2,777      2,278
 Sales and marketing            7,200     3,765     12,898      6,837
 General and administrative     2,039       639      3,445      1,083
                              --------  --------   --------   --------

 Total operating expenses      10,801     5,794     19,120     10,198
                              --------  --------   --------   --------

 Operating loss                (5,987)   (2,591)    (9,366)    (4,470)
 Interest income                  688       161      1,628        343
                              --------  --------   --------   --------

 Net loss                     $(5,299)  $(2,430)   $(7,738)   $(4,127)
                              ========  ========   ========   ========

 Net loss per common                                         
  share - basic and                                          
  diluted                     $ (0.26)  $ (0.98)   $ (0.39)   $ (1.67)
                              ========  ========   ========   ========
                                                             
 Weighted average common                                     
  shares outstanding -                                       
  basic and diluted            20,212     2,483     20,071      2,468
                              ========  ========   ========   ========

 Stock-based compensation
  is included in
  operating expenses in
  the following categories:
 Cost of revenue              $    13   $    14    $    27    $    26
 Research and development         204       169        295        200
 Sales and marketing              600       424        874        715
 General and administrative       515        69        658        118
                              --------  --------   --------   --------
                              $ 1,332   $   676    $ 1,854    $ 1,059
                              ========  ========   ========   ========
                                                                 


 Reconciliation of Second Quarter Results
 (in thousands, except per share amounts)
 (Unaudited)                                        2008        2007
                                                 ---------   ---------

 GAAP net loss                                   $ (5,299)   $ (2,430)
 Stock based compensation                           1,332         676
                                                 ---------   ---------
 Non-GAAP net loss                               $ (3,967)   $ (1,754)
                                                 =========   =========

 Shares used in computing GAAP loss 
  per share                                        20,212       2,483
 Assumed issuance of common shares 
  from initial public offering                         --       6,325
 Assumed conversion of preferred 
  stock to common stock                                --      10,793
                                                 ---------   ---------
 Shares used in computing non-GAAP 
  loss per share                                   20,212      19,601
                                                 =========   =========

 Non-GAAP loss per share                          $ (0.20)    $ (0.09)
                                                 =========   =========

 Reconciliation of Year-To-Date Results
 (in thousands, except per share amounts)
 (Unaudited)                                        2008        2007
                                                 ---------   ---------

 GAAP net loss                                   $ (7,738)   $ (4,127)
 Stock based compensation                           1,854       1,059
                                                 ---------   ---------
 Non-GAAP net loss                               $ (5,884)   $ (3,068)
                                                 =========   =========

 Shares used in computing GAAP loss 
  per share                                        20,071       2,468
 Assumed issuance of common shares 
  from initial public offering                         --       6,325
 Assumed conversion of preferred 
  stock to common stock                                --      10,793
                                                 ---------   ---------
 Shares used in computing non-GAAP
  loss per share                                   20,071      19,586
                                                 =========   =========

 Non-GAAP loss per share                         $  (0.29)   $  (0.16)
                                                 =========   =========



                              TranS1 Inc.
                            Balance Sheets
                            (in thousands)
                             (Unaudited)

                                            June 30,      December 31,
                                              2008            2007
                                           ----------     ------------
 Assets
 Current assets:
     Cash and cash equivalents             $  52,049       $  64,676
     Short-term investments                   21,466          29,245
     Accounts receivable, net                  3,774           3,225
     Inventory                                 3,964           4,025
     Prepaid expenses and other assets           362             597
                                           ----------      ----------
       Total current assets                   81,615         101,768
 Property and equipment, net                   1,337           1,088
 Long-term investments                        14,276              --
                                           ----------      ----------
       Total assets                        $  97,228       $ 102,856
                                           ==========      ==========


 Liabilities and Stockholders' Equity
 Current liabilities:
     Accounts payable                      $   2,017       $   1,631
     Accrued expenses                          1,535           1,786
                                           ----------      ----------
       Total current liabilities               3,552           3,417
                                           ----------      ----------

 Stockholders' equity
     Common stock                                  2               2
     Additional paid-in capital              132,300         130,325
     Accumulated deficit                     (38,626)        (30,888)
                                           ----------      ----------
       Total stockholders' equity             93,676          99,439
                                           ----------      ----------
       Total liabilities and 
        stockholders' equity               $  97,228       $ 102,856
                                           ==========      ==========



                             TranS1 Inc.
                      Statements of Cash Flows
                           (in thousands)
                            (Unaudited)
                                                   Six Months Ended
                                                        June 30,
                                                 ---------------------
                                                    2008        2007
                                                 ---------   ---------
 Cash flows from operating activities:
 Net loss                                        $ (7,738)   $ (4,127)
 Adjustments to reconcile net loss to net
  cash used in operating activities
    Depreciation                                      369         268
    Stock-based compensation                        1,854       1,059
    Allowance for excess and obsolete inventory        34          85
    Provision for bad debts                            66          22
    Changes in operating assets and liabilities:
      Increase in accounts receivable                (615)     (1,735)
      Decrease (increase) in inventory                 27        (975)
      Decrease (increase) in prepaid expenses         235        (254)
      Increase in accounts payable                    386         180
      (Decrease) increase in accrued expenses        (251)      1,029
                                                 ---------   ---------
 Net cash used in operating activities             (5,633)     (4,448)
                                                 ---------   ---------

 Cash flows from investing activities:
 Purchase of property and equipment                  (618)       (390)
 Purchases of short-term investments              (27,012)    (10,716)
 Sales of short-term investments                   34,791      16,009
 Purchases of long-term investments               (14,276)         --
                                                 ---------   ---------
 Net cash provided by (used in) investing 
  activities                                       (7,115)      4,903
                                                 ---------   ---------

 Cash flows from financing activities:
 Proceeds from issuance of common stock               121          48
                                                 ---------   ---------
 Net cash provided by financing activities            121          48
                                                 ---------   ---------
 Net increase (decrease) in cash and cash 
  equivalents                                     (12,627)        503
 Cash and cash equivalents, beginning of period    64,676       5,034
                                                 ---------   ---------
 Cash and cash equivalents, end of period        $ 52,049    $  5,537
                                                 =========   =========


            

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