SEC Form 4 · accession 0001976408-26-000777
SIMILARWEB LTD. · SMWB
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Or Offer
Officer — Chief Executive Officer
Period of report
Aug 26, 2026
Accepted (ET)
Aug 27, 2026 · 8:03 am EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001842731
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Ordinary sharesF2 | Aug 26, 2026 | M | 164,817 | $2.71 | A | 4,763,108 | D | |
| Ordinary sharesF3 | Aug 26, 2026 | S | 164,817 | $9.0006 | D | 4,598,291 | D | |
| Ordinary sharesF2 | Aug 26, 2026 | M | 39,302 | $2.71 | A | 4,637,593 | D | |
| Ordinary sharesF4 | Aug 26, 2026 | S | 39,302 | $9.0121 | D | 4,598,291 | D | |
| Ordinary sharesF2 | Aug 26, 2026 | M | 39,000 | $0.40 | A | 4,637,291 | D | |
| Ordinary sharesF5 | Aug 26, 2026 | S | 39,000 | $9.0043 | D | 4,598,291 | D | |
| Ordinary sharesF2 | Aug 26, 2026 | M | 140,008 | $3.04 | A | 4,738,299 | D | |
| Ordinary sharesF6 | Aug 26, 2026 | S | 140,008 | $9.0054 | D | 4,598,291 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Options to purchase one Ordinary Share | $2.71 | Aug 26, 2026 | M | 164,817 | D | Nov 20, 2020 | Nov 19, 2028 | Ordinary shares | 164,817 | 400,000 | D |
| Options to purchase one Ordinary Share | $2.71 | Aug 26, 2026 | M | 39,302 | D | Nov 20, 2019 | Nov 19, 2028 | Ordinary shares | 39,302 | 400,000 | D |
| Options to purchase one Ordinary Share | $0.40 | Aug 26, 2026 | M | 39,000 | D | Feb 14, 2015 | Feb 14, 2028 | Ordinary shares | 39,000 | 700,000 | D |
| Options to purchase one Ordinary Share | $3.04 | Aug 26, 2026 | M | 140,008 | D | Jan 29, 2022 | Jan 28, 2031 | Ordinary shares | 140,008 | 0 | D |
Explanation of responses
- F1The options reported herein were exercised and the underlying shares were sold on the same date as reported in Table I.
- F2The shares were acquired upon the exercise of stock options
- F3The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $9.00 to $9.01. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request
- F4The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $9.012 to $9.03. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request
- F5The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $9.00 to $9.05. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request
- F6The price reported is a weighted average price. These shares were sold in multiple transactions ranging from $9.00 to $9.055. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request