X0508 4 2025-12-15 0 0001831840 SEMrush Holdings, Inc. SEMR 0001849699 Melnikov Dmitry C/O SEMRUSH HOLDINGS, INC. 800 BOYLSTON STREET, SUITE 2475 BOSTON MA 02199 1 0 1 0 0 Class A Common Stock 2025-12-15 4 G 0 314778 0 D 0 I The Dmitry Melnikov Grantor Retained Annuity Trust - Three Class A Common Stock 2025-12-15 4 G 0 314778 0 A 8998437 I The Melnikov Family GRAT Remainder Trust Class A Common Stock 1881211 D Class A Common Stock 5924595 I Min Choron LLC Class A Common Stock 734437 I The Dmitry Melnikov Grantor Retained Annuity Trust - Four Class A Common Stock 1343131 I The Dmitry Melnikov Grantor Retained Annuity Trust - Five Represents 314,778 shares distributed from The Dmitry Melnikov Grantor Retained Annuity Trust - Three ("GRAT Three") to The Melnikov Family GRAT Remainder Trust following the final annuity payment out of GRAT Three. The amount of Class A Common Stock excludes 599,255 shares of the Issuer's Class A Common Stock that GRAT Three distributed without value to the Reporting Person on December 15, 2025 as an annuity payment which was exempt pursuant to Rule 16a-13. These shares are owned by The Dmitry Melnikov Grantor Retained Annuity Trust - Three, a grantor retained annuity trust for the benefit of the Reporting Person, and the ultimate beneficiaries of which are certain members of the Reporting Person's family. The Reporting Person disclaims Section 16 beneficial ownership of these securities except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose. These shares are owned by The Melnikov Family GRAT Remainder Trust, a trust for the benefit of certain members of the Reporting Person's family. The Reporting Person disclaims Section 16 beneficial ownership of these securities, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose. A portion of these shares represent restricted stock units ("RSUs"). Each RSU represents a right to receive one share of the Issuer's Class A Common Stock upon vesting. The amount of Class A Common Stock includes 599,255 shares of the Issuer's Class A Common Stock transferred from GRAT Three to the Reporting Person on December 15, 2025 in the form of an annuity payment, which was exempt from Section 16 pursuant to Rule 16a-13. These shares are owned by Min Choron LLC, which is wholly owned by The Melnikov Family Dynasty Trust, a trust for the benefit of certain members of the Reporting Person's family and of which IQ EQ Trust Company, US, LLC is the trustee. The Reporting Person's spouse is the trust advisor. The trust advisor directs the trustee as to how to vote and/or dispose of the assets in trust. The Reporting Person disclaims Section 16 beneficial ownership of these securities except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose. These shares are owned by The Dmitry Melnikov Grantor Retained Annuity Trust - Four, a grantor retained annuity trust for the benefit of the Reporting Person, and the ultimate beneficiaries of which are certain members of the Reporting Person's family. The Reporting Person disclaims Section 16 beneficial ownership of these securities except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose. These shares are owned by The Dmitry Melnikov Grantor Retained Annuity Trust - Five, a grantor retained annuity trust for the benefit of the Reporting Person, and the ultimate beneficiaries of which are certain members of the Reporting Person's family. The Reporting Person disclaims Section 16 beneficial ownership of these securities except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for Section 16 or any other purpose. /s/ David Mason, as attorney-in-fact 2025-12-17