SIMILARWEB LTD.

Filing Date

Mar 26, 2026

Transaction Date

Mar 26, 2026

Accession Number

0001976408-26-000291

Form Type

3

Footnotes

1. (F1)The Reporting Person was granted restricted stock units ("RSUs"), which each represent a contingent right to receive one ordinary share of Similarweb Ltd (the "Company"). The RSUs vest in 25% after one year period & 12 equal installments every quarter afterwards with the first vesting date on 02/15/2024, subject to the Reporting Person's continued service to the Company or its subsidiaries through each vesting date.
2. (F2)The Reporting Person was granted restricted stock units ("RSUs"), which each represent a contingent right to receive one ordinary share of Similarweb Ltd (the "Company"). The RSUs vest in 25% after one year period & 12 equal installments every quarter afterwards with the first vesting date on 02/15/2024, subject to the Reporting Person's continued service to the Company or its subsidiaries through each vesting date.
3. (F3)The Reporting Person was granted restricted stock units ("RSUs"), which each represent a contingent right to receive one ordinary share of Similarweb Ltd (the "Company"). The RSUs vest in 25% after one year period & 12 equal installments every quarter afterwards with the first vesting date on 02/15/2025, subject to the Reporting Person's continued service to the Company or its subsidiaries through each vesting date.
4. (F4)The Reporting Person was granted restricted stock units ("RSUs"), which each represent a contingent right to receive one ordinary share of Similarweb Ltd (the "Company"). The RSUs vest in 25% after one year period & 12 equal installments every quarter afterwards with the first vesting date on 02/15/2025, subject to the Reporting Person's continued service to the Company or its subsidiaries through each vesting date.
5. (F5)The Reporting Person was granted restricted stock units ("RSUs"), which each represent a contingent right to receive one ordinary share of Similarweb Ltd (the "Company"). The RSUs vest in 25% after one year period & 12 equal installments every quarter afterwards with the first vesting date on 02/15/2026, subject to the Reporting Person's continued service to the Company or its subsidiaries through each vesting date.
6. (F6)The Reporting Person was granted restricted stock units ("RSUs"), which each represent a contingent right to receive one ordinary share of Similarweb Ltd (the "Company"). The RSUs vest in 25% after one year period & 12 equal installments every quarter afterwards with the first vesting date on 02/15/2026, subject to the Reporting Person's continued service to the Company or its subsidiaries through each vesting date.
7. (F7)The Reporting Person was granted restricted stock units ("RSUs"), which each represent a contingent right to receive one ordinary share of Similarweb Ltd (the "Company"). The RSUs vest in 25% after one year period & 12 equal installments every quarter afterwards with the first vesting date on 02/15/2027, subject to the Reporting Person's continued service to the Company or its subsidiaries through each vesting date.
8. (F8)The Reporting Person was granted restricted stock units ("RSUs"), which each represent a contingent right to receive one ordinary share of Similarweb Ltd (the "Company"). The RSUs vest in 25% after one year period & 12 equal installments every quarter afterwards with the first vesting date on 02/15/2027, subject to the Reporting Person's continued service to the Company or its subsidiaries through each vesting date.
9. (F9)The Options are fully vested & immediately exercisable.