X0206 3 2013-11-13 0 0001438133 TANDEM DIABETES CARE INC TNDM 0001238913 BLICKENSTAFF KIM D C/O TANDEM DIABETES CARE, INC., 11045 ROSELLE STREET SAN DIEGO CA 92121 1 1 0 0 PRESIDENT AND CEO Common Stock 81617 I See footnote Common Stock 14920 I See footnote Series A Preferred Stock 0.00 Common Stock 18310 I See footnote Series B Preferred Stock 0.00 Common Stock 75938 I See footnote Series D Preferred Stock 0.00 Common Stock 217154 I See footnote Preferred Stock Warrant 4.40 2022-05-25 Series D Preferred Stock 45450 I See footnote Preferred Stock Warrant 4.40 2022-07-03 Series D Preferred Stock 181818 I See footnote Incentive Stock Option 1.11 Common Stock 271272 D Stock Option 1.11 Common Stock 303446 D The securities are held by the Kim Blickenstaff Revocable Trust dated April 15, 2010. Restricted stock issued pursuant to the Issuer's Tandem Diabetes Care, Inc. 2006 Stock Incentive Plan. These shares vested as to 25% on 10/20/2012 and continue to vest in 36 equal monthly installments thereafter, and will automatically vest in full upon consummation of the Issuer's initial public offering. The securities are immediately convertible. The expiration date is not relevant to the conversion of these securities. The warrants are immediately exercisable. Upon the consummation of the Issuer's initial public offering, these warrants will automatically become exercisable for 27,124 shares of the Issuer's common stock at an exercise price of $7.37 per share. Upon the consummation of the Issuer's initial public offering, these warrants will automatically become exercisable for 108,509 shares of the Issuer's common stock at an exercise price of $7.37 per share. Granted pursuant to the Issuer's Tandem Diabetes Care, Inc. 2006 Stock Incentive Plan. The date of the option was 4/23/2013. All shares subject to the option will vest in 24 equal monthly installments commencing on 4/23/2013. The expiration date for these options is 10 years from the date of grant. /s/ David B. Berger, Attorney-in-Fact for Kim D. Blickenstaff 2013-11-13