Isaacs Michael John
General Counsel & Company Sec.
Isaacs Michael John has filed 1 SEC Form 4 filing (2 transaction rows) across 1 company, with disclosures dating back to 2026. 1 of those filings fall inside the rolling window. Most recent filing: Jul 31, 2026.
On the most recent filing, Isaacs Michael John is listed as General Counsel & Company Sec. at PROTHENA CORP PUBLIC LTD CO. Inside the rolling window, Isaacs Michael John reported no open-market purchases and 1 open-market sale totaling $71K in PRTA.
Companies traded
Other insiders at PRTA
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$71K
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Isaacs Michael John made?
Isaacs Michael John has filed 1 SEC Form 4 filing (2 transaction rows) across 1 company since 2026.
Which companies does Isaacs Michael John trade?
Isaacs Michael John has filed SEC Form 4 disclosures for 1 company, including PRTA.
When was Isaacs Michael John's most recent SEC Form 4 filing?
Isaacs Michael John's most recent SEC Form 4 filing on Tracefour is dated Jul 31, 2026.
What is Isaacs Michael John's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Isaacs Michael John is listed as General Counsel & Company Sec..
What is Isaacs Michael John's total buy and sell value in the current window?
Inside the rolling retention window, Isaacs Michael John bought $0 and sold $71K based on SEC Form 4 filings.
What was Isaacs Michael John's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 8,386 PRTA shares on 2026-07-29, worth $71K, per SEC Form 4 filings.