Insider Stock Trading History of Nickerson Tara


The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Nickerson Tara since year 2005. The trader's CIK number is 1564461. At the time of this reporting, Nickerson Tara is the Chief Business Officer of Prothena Corp Plc . (stock ticker symbol PRTA). See this page for all insider trading activities at Prothena Corp Plc .


Stock purchases, sales, and option exercises reported by insider Nickerson Tara since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2017-09-27 PRTA Prothena Corp Plc Option Ex 4,724 6.73 31,792
2017-09-28 PRTA Prothena Corp Plc Option Ex 12,776 6.73 85,982
2017-09-27 PRTA Prothena Corp Plc Sale 4,724 69.05 326,187
2017-09-28 PRTA Prothena Corp Plc Sale 12,776 69.20 884,060
2017-09-25 PRTA Prothena Corp Plc Option Ex 17,500 6.41 112,175
2017-09-25 PRTA Prothena Corp Plc Sale 17,500 63.86 1,117,567
2015-12-09 PRTA Prothena Corp Plc Sale 10,000 66.25 662,530
2015-12-09 PRTA Prothena Corp Plc Option Ex 10,000 6.73 67,300
2015-09-09 PRTA Prothena Corp Plc Option Ex 10,000 6.41 64,100
2015-09-09 PRTA Prothena Corp Plc Sale 10,000 56.51 565,110
2015-06-09 PRTA Prothena Corp Plc Option Ex 12,000 6.41 76,920
2015-06-09 PRTA Prothena Corp Plc Sale 12,000 44.68 536,136
2015-03-20 PRTA Prothena Corp Plc Option Ex 13,000 6.41 83,330
2015-03-20 PRTA Prothena Corp Plc Sale 13,000 39.99 519,870
2014-05-12 PRTA Prothena Corp Plc Buy 1,656 21.00 34,776

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Nickerson Tara (Chief Business Officer of Prothena Corp Plc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.