Michael John Isaacs
CIK: 0002127815
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)1 (50.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)0 (0.0%)
Compensation grants
Other (G, F, J, C, D, …)1 (50.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
PRTA
PROTHENA CORP PUBLIC LTD CO
Officer
Discretionary Trading P&L
Holdings
About Isaacs Michael John
Isaacs Michael John (SEC CIK 0002127815) files insider reports with the SEC as General Counsel & Company Sec. of PROTHENA CORP PUBLIC LTD CO (PRTA).
Signal8 holds 2 ownership filings by Isaacs Michael John (1 Form 3, 1 Form 4), filed between Jun 12, 2026 and Jul 30, 2026. Those filings report 2 transactions, from Jul 28, 2026 to Jul 29, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Isaacs Michael John's filings is in BRISBANE, CA.
Recent filings by Isaacs Michael John
Other insiders filing for PROTHENA CORP PUBLIC LTD CO (PRTA)
- SCULLY WILLIAM P, 10% Owner
- Fennell Todd W., 10% Owner
- Zago Wagner M., Chief Scientific Officer
- Walker Karin L, Chief Accounting Officer
- Swanson Chad J., Chief Development Officer
- Smith Brandon S., Chief Operating Officer