MASON DAVID W

PrivateCIK: 1744907
Location

BOSTON, MA

Senior insider sale

Chief Legal Officer at SEMRUSH HOLDINGS, INC. — senior position signals high conviction

$1.16M

97.37K shares

What this filing means

MASON DAVID W plans to sell 97.37K shares of SEMRUSH HOLDINGS, INC. valued at approximately $1.16M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderMASON DAVID WCIK 1744907
IssuerSEMRUSH HOLDINGS, INC.CIK 1831840
Officer· Chief Legal Officer
Since Mar 2026
97.37K
Shares to sell
$1.16M
Approx. market value
97.37K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months1
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Restricted Stock

Not Applicable

11/1/2023
97.37K
Total acquired97.37K
Planned & Completed Dispositions1
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NYSEPlanned

Units to sell

97.37K

Market value

$1.16M

3/5/2026
Total

Units

97.37K

Value

$1.16M

MASON DAVID W — Planned Insider Sale (Form 144) | Finecho