The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) by Nickerson Tara since 2014.
The trader's CIK number is 1564461.
At the time of the last reporting, Nickerson Tara was the Chief Business Officer of Prothena Corp Plc. (stock ticker symbol PRTA).
Also see all insider trading activities at Prothena Corp Plc.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2017 | PRTA | 0 | $0 | 35,000 | $2,327,814 | 35,000 | $229,949 |
| 2015 | PRTA | 0 | $0 | 45,000 | $2,283,646 | 45,000 | $291,650 |
| 2014 | PRTA | 1,656 | $34,776 | 0 | $0 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2017-09-27 | PRTA | Option Ex | 4,724 | 6.73 | 31,792 |
| 2017-09-28 | PRTA | Option Ex | 12,776 | 6.73 | 85,982 |
| 2017-09-27 | PRTA | Sale | 4,724 | 69.05 | 326,187 |
| 2017-09-28 | PRTA | Sale | 12,776 | 69.20 | 884,060 |
| 2017-09-25 | PRTA | Option Ex | 17,500 | 6.41 | 112,175 |
| 2017-09-25 | PRTA | Sale | 17,500 | 63.86 | 1,117,567 |
| 2015-12-09 | PRTA | Sale | 10,000 | 66.25 | 662,530 |
| 2015-12-09 | PRTA | Option Ex | 10,000 | 6.73 | 67,300 |
| 2015-09-09 | PRTA | Option Ex | 10,000 | 6.41 | 64,100 |
| 2015-09-09 | PRTA | Sale | 10,000 | 56.51 | 565,110 |
| 2015-06-09 | PRTA | Option Ex | 12,000 | 6.41 | 76,920 |
| 2015-06-09 | PRTA | Sale | 12,000 | 44.68 | 536,136 |
| 2015-03-20 | PRTA | Option Ex | 13,000 | 6.41 | 83,330 |
| 2015-03-20 | PRTA | Sale | 13,000 | 39.99 | 519,870 |
| 2014-05-12 | PRTA | 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.