The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Isaacs Michael John since 2026.
This trader's CIK number is 2127815.
At the time of last reporting, Isaacs Michael John was the General Counsel & Company Sec. of Prothena Corp Public Ltd Co. (stock ticker symbol PRTA).
Also see all insider trading activities at Prothena Corp Public Ltd Co.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2026 | PRTA | 0 | $0 | 8,386 | $71,054 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2026-07-29 | PRTA | Sale | 8,386 | 8.47 | 71,054 |
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 Isaacs Michael John (General Counsel & Company Sec. of Prothena Corp Public Ltd Co at the time of this reporting) see the Securities and Exchange Commission (SEC) website.