Mason David W
Chief Legal Officer
Mason David W has filed 6 SEC Form 4 filings (7 transaction rows) across 1 company, with disclosures dating back to 2025. 5 of those filings fall inside the rolling window. Most recent filing: Apr 29, 2026.
On the most recent filing, Mason David W is listed as Chief Legal Officer at SEMrush Holdings, Inc. Inside the rolling window, Mason David W reported no open-market purchases and 1 open-market sale totaling $1.2M in SEMR.
Companies traded
Other insiders at SEMR
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$1.2M
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Mason David W made?
Mason David W has filed 6 SEC Form 4 filings (7 transaction rows) across 1 company since 2025.
Which companies does Mason David W trade?
Mason David W has filed SEC Form 4 disclosures for 1 company, including SEMR.
When was Mason David W's most recent SEC Form 4 filing?
Mason David W's most recent SEC Form 4 filing on Tracefour is dated Apr 29, 2026.
What is Mason David W's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Mason David W is listed as Chief Legal Officer.
What is Mason David W's total buy and sell value in the current window?
Inside the rolling retention window, Mason David W bought $0 and sold $1.2M based on SEC Form 4 filings.
What was Mason David W's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 97,372 SEMR shares on 2026-03-05, worth $1.2M, per SEC Form 4 filings.