X0202 3/A 2007-10-16 2007-10-16 0 0001230355 TRANS1 INC TSON 0001414331 Assell Robert L. C/O TRANS1 411 LANDMARK DRIVE WILMINGTON NC 28412 0 1 0 0 VP, Product Development Non-Qualified Stock Option 0.111 Common Stock 18000 D Incentive Stock Option 0.111 Common Stock 54000 D Incentive Stock Option 0.278 Common Stock 54000 D Incentive Stock Option 0.278 Common Stock 9000 D Incentive Stock Option 0.278 Common Stock 13500 D Incentive Stock Option 0.111 Common Stock 18000 D Incentive Stock Option 2.00 Common Stock 18000 D Incentive Stock Option 12.22 Common Stock 45000 D The date of grant of the option was 9/27/2002. All shares subject to the option vested in 35 equal monthly installments following the vesting commencement date of 10/27/2002. The expiration date for these options is 10 years from the date of grant. The date of grant of the option was 3/20/2003. All shares subject to the option vested as to 25% on 3/20/2004 and in 36 equal monthly installments thereafter. The date of grant of the option was 5/22/2003. All shares subject to the option vested as to 25% on 5/22/2004 and in 36 equal monthly installments thereafter. The date of grant of the option was 3/22/2005. All shares subject to the option vested as to 25% on 3/22/2006 and in 36 equal monthly installments thereafter. The date of grant of the option was 5/17/2005. All shares subject to the option vested as to 25% on 5/17/2006 and in 36 equal monthly installments thereafter. The date of grant of the option was 11/8/2006. All shares subject to the option vested as to 21% on 11/8/2006 and in 38 equal monthly installments thereafter. The date of grant of the option was 1/18/2007. All shares subject to the option will vest as to 25% on 1/18/2008 and in 36 equal monthly installments thereafter. The date of grant of the option was 9/19/2007. All shares subject to the option will vest as to 25% on 9/19/2008 and in 36 equal monthly installments thereafter. The Date of Event is based upon the effectiveness of the Issuer's Registration Statement on Form S-1 filed in connection with the Issuer's initial public offering, which is estimated to close on or about October 22, 2007. /s/ Bruce W. Feuchter attorney-in-fact 2007-11-05