To search for a specific CUSIP number, please use "Ctrl F" on your keyboard and enter the last three digits of the desired CUSIP number.

EXERCISE INFORMATION:

DTC

If you hold your warrants through a bank, broker or other nominee (i.e. through DTC), please contact the applicable party to determine what document(s) they may require in order to exercise your warrants.

DRS

If you hold your warrants in registered form on the books of the Agent (Computershare Trust Company, N.A.), please click here for the form you will need to complete. It should be completed and returned along with the applicable documentation required and delivered to the address indicated. Please make sure you fill in the correct CUSIP Number and Exercise Price from the chart below. If you have any questions, please contact Computershare directly at 800-546-5141.

Warrant Agreement

For a copy of the Warrant Agreement governing the Warrants, please click here.

WARRANTS

CUSIP #   Issue Date   Initial Exercise Date   Maturity Date   Per Share Exercise Price
74039L 111   3/30/2012   3/30/2013   3/30/2016   EXPIRED
74039L 129   4/30/2012   4/30/2013   4/30/2016   EXPIRED
74039L 137   5/31/2012   5/31/2013   5/31/2016   EXPIRED
74039L 145   6/28/2012   6/28/2013   6/28/2016   EXPIRED
74039L 152   7/17/2012   7/17/2013   7/17/2016   EXPIRED
74039L 160   7/31/2012   7/31/2013   7/31/2016   EXPIRED
74039L 178   8/16/2012   8/16/2013   8/16/2016   EXPIRED
74039L 186   8/30/2012   8/30/2013   8/30/2016   EXPIRED
74039L 194   9/14/2012   9/14/2013   9/14/2016   EXPIRED
74039L 210   9/28/2012   9/28/2013   9/28/2016   EXPIRED
74039L 236   10/17/2012   10/17/2013   10/17/2016   EXPIRED
74039L 228   10/31/2012   10/31/2013   10/31/2016   EXPIRED
74039L 244   11/15/2012   11/15/2013   11/15/2016   EXPIRED
74039L 251   11/30/2012   11/30/2013   11/30/2016   EXPIRED
74039L 269   12/14/2012   12/14/2013   12/14/2016   EXPIRED
74039L 277   12/28/2012   12/28/2013   12/28/2016   EXPIRED
74039L 285   1/10/2013   1/10/2014   1/10/2017   EXPIRED
74039L 293   1/31/2013   1/31/2014   1/31/2017   EXPIRED
74039L 319   2/15/2013   2/15/2014   2/15/2017   EXPIRED
74039L 327   2/28/2013   2/28/2014   2/28/2017   EXPIRED
74039L 335   3/15/2013   3/15/2014   3/15/2017   EXPIRED
74039L 343   3/28/2013   3/28/2014   3/28/2017   EXPIRED
74039L 350   4/16/2013   4/16/2014   4/17/2017   EXPIRED
74039L 368   4/30/2013   4/30/2014   4/30/2017   EXPIRED
74039L 376   5/16/2013   5/16/2014   5/16/2017   EXPIRED
74039L 384   5/31/2013   5/31/2014   5/31/2017   EXPIRED
74039L 392   6/14/2013   6/14/2014   6/14/2017   EXPIRED
74039L 418   6/28/2013   6/28/2014   6/28/2017   EXPIRED
74039L 426   7/16/2013   7/16/2014   7/16/2017   EXPIRED
74039L 434   7/31/2013   7/31/2014   7/31/2017   EXPIRED
74039L 442   8/16/2013   8/16/2014   8/16/2017   EXPIRED
74039L 459   8/30/2013   8/30/2014   8/30/2017   EXPIRED
74039L 483   9/17/2013   9/17/2014   9/17/2017   EXPIRED
74039L 467   9/30/2013   9/30/2014   9/30/2017   EXPIRED
74039L 475   10/15/2013   10/15/2014   10/15/2017   EXPIRED
74039L 491   10/31/2013   10/31/2014   10/31/2017   EXPIRED
74039L 517   11/15/2013   11/15/2014   11/15/2017   EXPIRED
74039C 111   11/27/2013   11/27/2014   11/27/2017   EXPIRED
74039C 129   12/17/2013   12/17/2014   12/17/2017   EXPIRED
74039C 137   12/31/2013   12/31/2014   12/31/2017   EXPIRED
74039C 145   1/15/2014   1/15/2015   1/15/2018   EXPIRED
74039C 152   1/31/2014   1/31/2015   1/31/2018   EXPIRED
74039C 160   2/14/2014   2/14/2015   2/14/2018   EXPIRED
74039C 178   2/28/2014   2/28/2015   2/28/2018   EXPIRED
74039C 186   3/14/2014   3/14/2015   3/14/2018   EXPIRED
74039C 194   3/31/2014   3/31/2015   3/31/2018   EXPIRED
74039C 210   4/15/2014   4/15/2015   4/15/2018   EXPIRED
74039C 228   4/30/2014   4/30/2015   4/30/2018   EXPIRED
74039C 236   5/15/2014   5/15/2015   5/15/2018   EXPIRED
74039C 244   5/30/2014   5/30/2015   5/30/2018   EXPIRED
74039C 251   6/16/2014   6/16/2015   6/16/2018   EXPIRED
74039C 269   6/30/2014   6/30/2015   6/30/2018   EXPIRED
74039C 277   7/15/2014   7/15/2015   7/15/2018   EXPIRED
74039C 285   7/31/2014   7/31/2015   7/31/2018   EXPIRED
74039C 293   8/15/2014   8/15/2015   8/15/2018   EXPIRED
74039C 319   8/29/2014   8/29/2015   8/29/2018   EXPIRED
74039C 327   9/15/2014   9/15/2015   9/15/2018   EXPIRED
74039C 335   9/30/2014   9/30/2015   9/30/2018   EXPIRED
74039C 343   10/16/2014   10/16/2015   10/16/2018   EXPIRED
74039E 117   10/31/2014   10/31/2015   10/31/2018   EXPIRED
74039E 125   11/14/2014   11/14/2015   11/14/2018   EXPIRED
74039E 133   11/26/2014   11/26/2015   11/26/2018   EXPIRED
74039E 141   12/15/2014   12/15/2015   12/15/2018   EXPIRED
74039E 158   12/31/2014   12/31/2015   12/31/2018   EXPIRED
74039C 350   1/15/2015   1/15/2016   1/15/2019   EXPIRED
74039E 166   1/30/2015   1/30/2016   1/30/2019   EXPIRED
74039C 368   2/13/2015   2/13/2016   2/13/2019   EXPIRED
74039E 174   2/27/2015   2/27/2016   2/27/2019   EXPIRED
74039C 376   3/13/2015   3/12/2016   3/13/2019   EXPIRED
74039C 384   3/31/2015   3/31/2016   3/31/2019   EXPIRED
74039E 182   4/15/2015   4/14/2016   4/15/2019   EXPIRED
74039E 190   4/30/2015   4/29/2016   4/30/2019   EXPIRED
74039C 392   5/15/2015   5/15/2016   5/15/2019   EXPIRED
74039E 216   5/29/2015   5/29/2016   5/29/2019   EXPIRED
74039E 224   6/15/2015   6/15/2016   6/15/2019   EXPIRED
74039E 232   6/30/2015   6/30/2016   6/30/2019   EXPIRED
74039E 240   7/15/2015   7/15/2016   7/15/2019   EXPIRED
74039E 257   7/31/2015   7/31/2016   7/31/2019   EXPIRED
74039E 265   8/14/2015   8/14/2016   8/14/2019   EXPIRED
74039E 273   8/31/2015   8/31/2016   8/31/2019   EXPIRED
74039E 281   9/15/2015   9/15/2016   9/15/2019   EXPIRED
74039E 299   9/29/2015   9/29/2016   9/29/2019   EXPIRED
74039J 116   10/15/2015   10/15/2016   10/15/2019   EXPIRED
74039J 124   10/30/2015   10/30/2016   10/30/2019   EXPIRED
74039J 132   11/16/2015   11/16/2016   11/16/2019   EXPIRED
74039J 140   11/25/2015   11/25/2016   11/25/2019   EXPIRED
74039J 157   12/15/2015   12/15/2016   12/15/2019   EXPIRED
74039C 418   12/30/2015   12/30/2016   12/30/2019   EXPIRED
74039C 426   1/15/2016   1/15/2017   1/15/2020   EXPIRED
74039C 434   1/29/2016   1/29/2017   1/29/2020   EXPIRED
74039J 165   2/12/2016   2/12/2017   2/12/2020   EXPIRED
74039J 173   2/26/2016   2/26/2017   2/26/2020   EXPIRED
74039J 181   3/15/2016   3/15/2017   3/15/2020   EXPIRED
74039J 199   3/30/2016   3/30/2017   3/30/2020   EXPIRED
74039J 215   4/15/2016   4/15/2017   4/15/2020   EXPIRED
74039J 223   4/29/2016   4/29/2017   4/29/2020   EXPIRED
74039J 231   5/13/2016   5/13/2017   5/13/2020   EXPIRED
74039C 442   5/27/2016   5/27/2017   5/27/2020   EXPIRED
74039J 249   6/15/2016   6/15/2017   6/15/2020   EXPIRED
74039J 256   6/29/2016   6/29/2017   6/29/2020   EXPIRED
74039C 459   7/15/2016   7/15/2017   7/15/2020   EXPIRED
74039J 264   7/29/2016   7/29/2017   7/29/2020   EXPIRED
74039J 272   8/15/2016   8/15/2017   8/15/2020   EXPIRED
74039C 467   8/31/2016   8/31/2017   8/31/2020   EXPIRED
74039J 280   9/15/2016   9/15/2017   9/15/2020   EXPIRED
74039J 298   9/29/2016   9/29/2017   9/29/2020   EXPIRED
74039E 315   10/14/2016   10/14/2017   10/14/2020   EXPIRED
74039C 475   10/28/2016   10/28/2017   10/28/2020   EXPIRED
74039C 483   11/15/2016   11/15/2017   11/15/2020   EXPIRED
74039E 323   11/30/2016   11/30/2017   11/30/2020   EXPIRED
74039J 314   12/15/2016   12/15/2017   12/15/2020   EXPIRED
74039J 322   12/29/2016   12/29/2017   12/29/2020   EXPIRED
74039J 330   1/13/2017   1/13/2018   1/13/2021   EXPIRED
74039J 348   1/30/2017   1/30/2018   1/30/2021   EXPIRED
74039J 355   2/14/2017   2/14/2018   2/14/2021   EXPIRED
74039E 331   2/27/2017   2/27/2018   2/27/2021   EXPIRED
74039E 349   3/15/2017   3/15/2018   3/15/2021   EXPIRED
74039J 363   3/30/2017   3/30/2018   3/30/2021   EXPIRED
74039J 371   4/13/2017   4/13/2018   4/13/2021   EXPIRED
74039J 389   4/27/2017   4/27/2018   4/27/2021   EXPIRED
74039E 356   5/15/2017   5/15/2018   5/15/2021   EXPIRED
74039C 491   5/26/2017   5/26/2018   5/26/2021   EXPIRED
74039E 364   6/15/2017   6/15/2018   6/15/2021   EXPIRED
74039E 372   6/29/2017   6/29/2018   6/29/2021   EXPIRED
74039E 380   7/14/2017   7/14/2018   7/14/2021   EXPIRED
74039C 533   7/28/2017   7/28/2018   7/28/2021   EXPIRED
74039E 398   8/15/2017   8/15/2018   8/15/2021   EXPIRED
74039J 397   8/30/2017   8/30/2018   8/30/2021   EXPIRED
74039E 414   9/15/2017   9/15/2018   9/15/2021   EXPIRED
74039E 422   9/28/2017   9/28/2018   9/28/2021   EXPIRED
74039J 413   10/13/2017   10/13/2018   10/13/2021   EXPIRED
74039E 430   10/30/2017   10/30/2018   10/30/2021   EXPIRED
74039E 448   11/15/2017   11/15/2018   11/15/2021   EXPIRED
74063B 112   11/29/2017   11/29/2018   11/29/2021   EXPIRED
74039J 421   12/15/2017   12/15/2018   12/15/2021   EXPIRED
74039J 439   12/28/2017   12/28/2018   12/28/2021   EXPIRED
74063B 120   1/16/2018   1/16/2019   1/16/2022   EXPIRED
74063B 138   1/30/2018   1/30/2019   1/30/2022   EXPIRED
74063B 146   2/15/2018   2/15/2019   2/15/2022   EXPIRED
74039E 455   2/27/2018   2/27/2019   2/27/2022   EXPIRED
74063B 153   3/15/2018   3/15/2019   3/15/2022   EXPIRED
74063B 161   3/29/2018   3/29/2019   3/29/2022   EXPIRED
74039J 447   4/16/2018   4/16/2019   4/16/2022   EXPIRED
74063B 179   4/27/2018   4/27/2019   4/27/2022   EXPIRED
74063B 187   5/15/2018   5/15/2019   5/15/2022   EXPIRED
74063B 195   5/30/2018   5/30/2019   5/30/2022   EXPIRED
74039J 454   6/15/2018   6/15/2019   6/15/2022   EXPIRED
74063B 211   6/28/2018   6/28/2019   6/28/2022   EXPIRED
74063B 229   7/16/2018   7/16/2019   7/16/2022   $21.07
74039J 462   7/30/2018   7/30/2019   7/30/2022   $19.78
74063B 237   8/15/2018   8/15/2019   8/15/2022   $20.82
74063B 245   8/30/2018   8/30/2019   8/30/2022   $21.70
74063B 252   9/14/2018   9/14/2019   9/14/2022   $21.43
74063B 260   9/27/2018   9/27/2019   9/27/2022   $20.44
74063B 278   10/15/2018   10/15/2019   10/15/2022   $20.47
74063B 286   10/30/2018   10/30/2019   10/30/2022   $19.70
74063B 294   11/15/2018   11/15/2019   11/15/2022   $19.50
74063B 310   11/29/2018   11/29/2019   11/29/2022   $19.50
74063B 328   12/14/2018   12/14/2019   12/14/2022   $19.50
74063B 336   12/28/2018   12/28/2019   12/28/2022   $19.50
74063B 344   1/15/2019   1/15/2020   1/15/2023   $19.82
74063B 351   1/30/2019   1/30/2020   1/30/2023   $19.50
74063B 369   2/15/2019   2/15/2020   2/15/2023   $19.50
74063B 377   2/27/2019   2/27/2020   2/27/2023   $19.50
74063Q 119   3/15/2019   3/15/2020   3/15/2023   $19.50
74063Q 127   3/28/2019   3/28/2020   3/28/2023   $19.50
74063Q 135   4/15/2019   4/15/2020   4/15/2023   $19.50
74063Q 143   4/29/2019   4/29/2020   4/29/2023   $19.50
74063Q 150   5/15/2019   5/15/2020   5/15/2023   $19.50
74063Q 168   5/29/2019   5/29/2020   5/29/2023   $19.50
74063Q 176   6/14/2019   6/14/2020   6/14/2023   $19.50
74063Q 184   6/27/2019   6/27/2020   6/27/2023   $19.50
74063Q 192   7/15/2019   7/15/2020   7/15/2023   $19.50
74063Q 218   7/30/2019   7/30/2020   7/30/2023   $19.50
74063Q 226   8/15/2015   8/15/2019   8/15/2023   $19.50
74063Q 234   8/29/2019   8/29/2019   8/29/2023   $19.50
74063Q 242   9/16/2019   9/16/2019   9/16/2023   $19.50
74063Q 259   9/27/2019   9/27/2019   9/16/2023   $19.50
74063Q 267   10/15/2019   10/15/2019   10/15/2023   $19.50
74063Q 275   10/30/2019   10/30/2019   10/30/2023   $19.50
74063Q 283   11/15/2019   11/15/2019   11/15/2023   $19.50
74063Q 291   11/27/2019   11/27/2019   11/27/2023   $19.50
74063Q 317   12/16/2019   12/16/2019   12/16/2023   $19.50
74063Q 325   12/30/2019   12/30/2019   12/30/2023   $19.50
74063Q 333   1/15/2020   1/15/2021   1/15/2024   $19.50
74063R 117   1/30/2020   1/30/2021   1/30/2024   $19.50
74063Q 341   2/14/2020   2/14/2021   2/14/2024   $19.50

** Each Warrant exercisable for 20 shares of common stock at per share exercise price