MASON DAVID W

PrivateCIK: 1744907
Location

BOSTON, MA

MASON DAVID W (Chief Legal Officer) reported 1 transaction at SEMRUSH HOLDINGS, INC.

Review the transaction codes below to understand the nature of each event.

InsiderMASON DAVID WCIK 1744907
IssuerSEMRUSH HOLDINGS, INC.CIK 1831840
Officer· Chief Legal Officer
Since Mar 2026
-415.96K
Net shares
Net seller
$3.25M
Total sold
0
Open market trades
0B · 0S
2
Total transactions
415.96K disposed
Non-Derivative Transactions1

Class A Common Stock

Direct
D · Disposition

Shares

271.25K

Price / share

$12.00

Trade value

$3.25M

% of position

New position
4/28/2026
271.25K0.00
Total

Net shares

271.25K

Net value

-$3.25M

Derivative Transactions1

Stock Option (Right to Buy)

Direct
D · Disposition
Converts to

Class A Common Stock

144.72K shares

Shares

144.72K

Strike price

11.91

Held after

0.00

Exercisable

4/28/2026
MASON DAVID W — Insider Transaction (Form 4) Filed Apr 29, 2026 | Finecho