| Insider |  Price |  Amount |  Total Value |  Remaining Holdings |  Date |  Form 4 |  
   |    Officer   |  $14.47 |  5,000 |  $72,350.00 |  0 |  2018-12-03 |  Filing |  
  |    Officer   |  $13.22 |  5,000 |  $66,104.50 |  0 |  2018-09-04 |  Filing |  
  |    Officer   |  $10.02 |  5,000 |  $50,121.50 |  0 |  2018-06-01 |  Filing |  
  |    Officer, Director   |  $9.82 |  20,809 |  $204,331.89 |  2,704 |  2018-05-01 |  Filing |  
  |    Officer, Director   |  $11.10 |  15,000 |  $166,480.50 |  2,704 |  2018-04-02 |  Filing |  
  |    Officer   |  $11.04 |  17,000 |  $187,759.90 |  0 |  2018-04-03 |  Filing |  
  |    Officer, Director   |  $7.35 |  9,191 |  $67,555.69 |  2,704 |  2018-03-02 |  Filing |  
  |    Officer   |  $7.30 |  5,000 |  $36,479.00 |  0 |  2018-03-01 |  Filing |  
  |    Officer, Director   |  $6.92 |  15,000 |  $103,761.00 |  2,704 |  2018-02-01 |  Filing |  
  |    Officer   |  $5.61 |  17,000 |  $95,412.50 |  0 |  2018-01-02 |  Filing |  
  |    Officer, Director   |  $5.71 |  15,000 |  $85,603.50 |  2,704 |  2018-01-03 |  Filing |  
  |    Officer   |  $5.72 |  5,000 |  $28,591.00 |  0 |  2017-12-04 |  Filing |  
  |    Officer, Director   |  $5.53 |  15,000 |  $82,977.00 |  2,704 |  2017-12-05 |  Filing |  
  |    Officer, Director   |  $6.11 |  15,000 |  $91,651.50 |  2,704 |  2017-11-01 |  Filing |  
  |    Officer, Director   |  $6.50 |  15,000 |  $97,473.00 |  2,704 |  2017-10-02 |  Filing |  
  |    Officer   |  $6.49 |  17,000 |  $110,398.00 |  0 |  2017-10-02 |  Filing |  
  |    Officer, Director   |  $5.84 |  15,000 |  $87,600.00 |  2,704 |  2017-09-01 |  Filing |  
  |    Officer   |  $5.88 |  5,000 |  $29,420.00 |  0 |  2017-09-01 |  Filing |  
  |    Officer, Director   |  $4.76 |  15,000 |  $71,445.00 |  2,704 |  2017-08-07 |  Filing |  
  |    Officer   |  $4.77 |  17,000 |  $81,098.50 |  0 |  2017-08-07 |  Filing |