MASON DAVID W

PrivateCIK: 1744907
Location

BOSTON, MA

MASON DAVID W (Chief Legal Officer) sold 26.4% of their position (97.37K shares) of SEMRUSH HOLDINGS, INC. on the open market

Open‑market sale worth $1.16M — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderMASON DAVID WCIK 1744907
IssuerSEMRUSH HOLDINGS, INC.CIK 1831840
Officer· Chief Legal Officer
Since Mar 2026
-97.37K
Net shares
Net seller
$1.16M
Total sold
1
Open market trades
0B · 1S
1
Total transactions
97.37K disposed
Non-Derivative Transactions1

Class A Common Stock

Direct
S · Sale

Shares

97.37K

Price / share

$11.93

Trade value

$1.16M

% of position

26.4%
3/5/2026
368.62K271.25K
Total

Net shares

97.37K

Net value

-$1.16M

Derivative Transactions0
No derivative transactions reported
MASON DAVID W — Insider Transaction (Form 4) Filed Mar 9, 2026 | Finecho