Marcus Gail Boxer
SEC Form 4 insider trading activity
Marcus Gail Boxer has filed 5 SEC Form 4 filings (12 transaction rows) across 1 company, with disclosures dating back to 2025. 5 of those filings fall inside the rolling window. Most recent filing: Jul 1, 2026.
On the most recent filing, Marcus Gail Boxer is listed as Director at Natera, Inc. Inside the rolling window, Marcus Gail Boxer reported no open-market purchases and 2 open-market sales totaling $2.4M in NTRA. The largest disclosed transaction in the window is a sale of 11,000 NTRA shares on Jun 5, 2026, worth $2.4M.
Companies traded
Other insiders at NTRA
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$2.4M
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Marcus Gail Boxer made?
Marcus Gail Boxer has filed 5 SEC Form 4 filings (12 transaction rows) across 1 company since 2025.
Which companies does Marcus Gail Boxer trade?
Marcus Gail Boxer has filed SEC Form 4 disclosures for 1 company, including NTRA.
When was Marcus Gail Boxer's most recent SEC Form 4 filing?
Marcus Gail Boxer's most recent SEC Form 4 filing on Tracefour is dated Jul 1, 2026.
What is Marcus Gail Boxer's total buy and sell value in the current window?
Inside the rolling retention window, Marcus Gail Boxer bought $0 and sold $2.4M based on SEC Form 4 filings.
What was Marcus Gail Boxer's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 11,000 NTRA shares on 2026-06-05, worth $2.4M, per SEC Form 4 filings.