Mason Mark
Chief Financial Officer
Mason Mark has filed 6 SEC Form 4 filings (7 transaction rows) across 2 companies, including C, MSFT, with disclosures dating back to 2025. 6 of those filings fall inside the rolling window. Most recent filing: Feb 24, 2026.
On the most recent filing, Mason Mark is listed as Chief Financial Officer at CITIGROUP INC. Inside the rolling window, Mason Mark reported no open-market purchases and 1 open-market sale totaling $416K in C.
Companies traded
Other insiders at C
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$416K
reported sales (SEC code S)
Companies
2
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Mason Mark made?
Mason Mark has filed 6 SEC Form 4 filings (7 transaction rows) across 2 companies, including C, MSFT since 2025.
Which companies does Mason Mark trade?
Mason Mark has filed SEC Form 4 disclosures for 2 companies, including C, MSFT.
When was Mason Mark's most recent SEC Form 4 filing?
Mason Mark's most recent SEC Form 4 filing on Tracefour is dated Feb 24, 2026.
What is Mason Mark's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Mason Mark is listed as Chief Financial Officer.
What is Mason Mark's total buy and sell value in the current window?
Inside the rolling retention window, Mason Mark bought $0 and sold $416K based on SEC Form 4 filings.
What was Mason Mark's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 3,627 C shares on 2026-02-20, worth $416K, per SEC Form 4 filings.