David Mason - 15 Dec 2025 Form 4 Insider Report for SEMrush Holdings, Inc. (SEMR)

Role
Chief Legal Officer
Signature
/s/ David Mason
Issuer symbol
SEMR
Transactions as of
15 Dec 2025
Transactions value $
-$309,000
Form type
4
Filing time
17 Dec 2025, 18:30:58 UTC
Previous filing
02 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Mason David W Chief Legal Officer C/O SEMRUSH HOLDINGS, INC., 800 BOYLSTON STREET, SUITE 2475, BOSTON /s/ David Mason 17 Dec 2025 0001744907

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SEMR Class A Common Stock Award $0 +143K +57.03% $0.00 395K 15 Dec 2025 Direct F1, F2
transaction SEMR Class A Common Stock Tax liability -$309K -26.1K -6.6% $11.86 369K 15 Dec 2025 Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Consists of a grant of a restricted stock unit ("RSU") award under the Issuer's 2021 Stock Option and Incentive Plan. Each RSU represents a right to receive one share of the Issuer's Class A Common Stock upon vesting. The RSUs shall vest over a period of three years, with one-third vesting on December 15, 2026, and then in equal quarterly installments over the 24-month period thereafter.
F2 A portion of these shares represent RSUs. Each RSU represents a right to receive one share of the Issuer's Class A Common Stock upon vesting.
F3 Represents shares of Class A Common Stock withheld by the Company to satisfy tax withholding obligations in connection with the net issuance of shares of Class A Common Stock delivered to the Reporting Person on December 15, 2025, from the vesting of RSUs. The number of shares withheld by the Company to satisfy tax withholding obligations (and the net issuance) is based on the closing price of the Company's Class A Common Stock on December 15, 2025.