Mathers Edward T
SEC Form 4 insider trading activity
Mathers Edward T has filed 7 SEC Form 4 filings (19 transaction rows) across 4 companies, including RYTM, KRRO, SGP, with disclosures dating back to 2025. 5 of those filings fall inside the rolling window. Most recent filing: Mar 16, 2026.
On the most recent filing, Mathers Edward T is listed as 10% Owner at Korro Bio, Inc. Inside the rolling window, Mathers Edward T reported 2 open-market purchases totaling $17.3M in KRRO and SGP and no open-market sales. The largest disclosed transaction in the window is a purchase of 937,500 SGP shares on Feb 9, 2026, worth $15.0M.
Companies traded
Other insiders at RYTM
Insider Buying
$17.3M
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
4
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Mathers Edward T made?
Mathers Edward T has filed 7 SEC Form 4 filings (19 transaction rows) across 4 companies, including RYTM, KRRO, SGP since 2025.
Which companies does Mathers Edward T trade?
Mathers Edward T has filed SEC Form 4 disclosures for 4 companies, including RYTM, KRRO, SGP.
When was Mathers Edward T's most recent SEC Form 4 filing?
Mathers Edward T's most recent SEC Form 4 filing on Tracefour is dated Mar 16, 2026.
What is Mathers Edward T's total buy and sell value in the current window?
Inside the rolling retention window, Mathers Edward T bought $17.3M and sold $0 based on SEC Form 4 filings.
What was Mathers Edward T's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 937,500 SGP shares on 2026-02-09, worth $15.0M, per SEC Form 4 filings.