Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity

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Stockholders' Equity
6 Months Ended
Jun. 30, 2017
Equity [Abstract]  
Stockholders' Equity

10.       Stockholders’ Equity

 

Investment Agreement

 

On February 7, 2017, the Company entered into a Stock Purchase Agreement with Johnson Controls pursuant to which the Company issued and sold to a wholly-owned subsidiary of Johnson Controls International plc, (“Johnson Controls”), 939,005 shares of its common stock at $11.33 per share for the gross proceeds of approximately $10.6 million. Costs incurred in connection with the transaction, primarily legal fees, totaled approximately $167,000. The Stock Purchase Agreement includes customary representations, warranties, and covenants by Johnson Controls and the Company, and an indemnity from the Company in favor of Johnson Controls.

 

In connection with the investment transactions, the Company also entered into an Investors Rights Agreement dated February 7, 2017 with Johnson Controls pursuant to which the Company granted Johnson Controls customary demand and piggyback registration rights, limited board observation rights and limited preemptive rights allowing Johnson Controls the right to purchase its proportional share of certain future equity issuances by the Company. The board observation and preemptive rights shall expire on the earlier of (i) such time as Johnson Controls no longer owns 50% of the acquired shares or (ii) the termination of both the Tolling/Lead Purchase Agreement and Equipment Supply Agreement.

 

There were no sales commissions paid by the Company in connection with the sale of its common shares to Johnson Controls.

 

Warrants exercised

 

During the six months ended June 30, 2017, 1,175,796 shares were issued pursuant to cash and cashless warrant exercises as detailed below. Generally, the warrants specify using the preceding five-day average of closing prices for the Company’s common stock in the calculation of common stock to be issued pursuant to a cashless exercise. 

 

      Average Closing           Warrant     Common  
      Market Price     Exercise Price     Shares     Shares  
Date     Per Share     Per Share     Exercised     Issued  
                           
  2/10/2017     $ 11.016     $ 0.0034375       392,728       392,605  
  2/13/2017     $ 13.062     $ 3.00       25,119       19,349  
  2/13/2017     $ 13.062     $ 6.00       72,420       39,154  
  2/15/2017     $ 16.768     $ 6.00       65,177       41,856  
  2/16/2017     $ 16.768     $ 6.00       35,000       22,470  
  3/17/2017     $ 20.262     $ 6.00       2,500       2,500  
  3/20/2017     $ 20.304     $ 3.00       226,068       192,666  
  3/20/2017     $ 20.304     $ 6.00       586,596       413,253  
  4/3/2017     $ 19.148     $ 0.0034375       43,636       43,628  
  4/11/2017     $ 17.920     $ 6.00       12,500       8,315  
                                     
                          1,461,744       1,175,796  

  

Warrants outstanding

 

Warrants to purchase shares of the Company’s common stock at a weighted average exercise price of $8.45 are as follows. 

 

Exercise Price     Expiration     Shares Subject to purchase  
per Share     Date     at June 30, 2017  
               
$ 7.12       5/18/2018       702,247  
$ 9.00       5/18/2019       1,605,131  
$ 10.00       11/21/2019       33,450  
                     
                  2,340,828  

  

Stock based compensation

 

The stock-based compensation expense attributable to option grants granted was allocated as follows: 

 

    Three months ended June 30,     Six months ended June 30,  
    2017     2016     2017     2016  
Sales cost   $ 24     $     $ 24     $  
Research and development cost     73       55       160       106  
General and administrative expense     209       475       283       632  
Total   $ 306     $ 530     $ 467     $ 738  

 

The following assumptions were used in the Black-Scholes-Merton pricing model to estimate the fair value of the options. 

 

    Three months ended June 30,     Six months ended June 30,  
    2017     2016     2017     2016  
                         
Expected stock volatility     71.04% - 72.65 %     72.36% - 80 %     70.92% - 72.65 %     72%-80 %
Risk free interest rate     1.38% - 1.66 %     0.94% - 1.20 %     1.38% - 1.79 %     0.94%-1.77 %
Expected years until exercise     2.50-3.50       2.50-3.50       2.50-3.50       2.50-3.50  
Dividend yield     0 %     0 %     0 %     0 %

 

The Company issued 16,561 and 35,334 shares of common stock for the three and six months ended June 30, 2017, respectively, upon stock option exercises.