Isaacs Michael John
SEC CIK 2127815 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| PRTA | PROTHENA CORP PUBLIC LTD CO | GC, Company Sec | 35.7K | — | $71.1K | 2 | 2026-07-28 | 2026-07-29 |
Most active insiders at PRTA, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | SCULLY WILLIAM P | 10% | $4.96M | — |
| 2 | Isaacs Michael John | GC, Company Sec | — | $71.1K |
| 3 | Kingston Anne Evans | Chief Strategy Off | — | $64.9K |
| 4 | Swanson Chad J. | Chief Development Off | — | — |
| 5 | Smith Brandon S. | COO | — | — |
| 6 | Zago Wagner M. | CSO | — | — |
| 7 | Kinney Gene G. | Pres, CEO, Dir | — | — |
| 8 | Walker Karin L | CAO | — | — |
| 9 | Nguyen Tran | CFO, Chief Strategy Off | — | — |
Transactions 2
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| T | 2026-07-30 20:30 | 2026-07-28 | PRTA | PROTHENA CORP PUBLIC LTD CO | Isaacs Michael John | GC, Company Sec | F - Tax | $8.56 | -4,694 | 44.1K | -10% | -$40.2K |
| T | 2026-07-30 20:30 | 2026-07-29 | PRTA | PROTHENA CORP PUBLIC LTD CO | Isaacs Michael John | GC, Company Sec | S - Sale | $8.47 | -8,386 | 35.7K | -19% | -$71.1K |
Purchase Sale Sale after option exercise All abbreviations