Insider · CIK 0001910424
Or Offer
ceoofficerdirector
Files at SMWB (SIMILARWEB LTD.). First filing May 20, 2026, latest Sep 25, 2026.
In brief
Or Offer files SEC Form 4 as CEO and director at SMWB (SIMILARWEB LTD.). Since May 20, 2026, Or Offer has reported 2 open-market buys worth $407k and 11 open-market sells worth $17M, the latest filed on Sep 25, 2026.
A track record needs three past buys with six months of prices behind them; Or Offer has 0, so none is measured yet.
The newest scored trade: sold $879k of SMWB on Sep 24, 2026, filed Sep 25, 2026, scored 28 (weak), under a 10b5-1 plan. In the last 12 months: 2 buys worth $407k and 11 sells worth $17M.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
2 / 11
$407k bought, $17M sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
SMWB: SIMILARWEB LTD.
SMWBOct 9, 2026 · close 9.05
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 28Weak | SIMILARWEB LTD. | $879k 114,300 shares | -3% | - | |
| 23Weak | SIMILARWEB LTD. | $531k 62,900 shares | -2% | - | |
| 24Weak | SIMILARWEB LTD. | $580k 69,700 shares | -2% | - | |
| 25Weak | SIMILARWEB LTD. | $638k 76,119 shares | -2% | - | |
| 26Weak | SIMILARWEB LTD. | $679k 79,591 shares | -2% | - | |
| 26Weak | SIMILARWEB LTD. | $679k 79,591 shares | -2% | - | |
| 26Weak | SIMILARWEB LTD. | $679k 79,591 shares | -2% | - | |
| 29Weak | SIMILARWEB LTD. | $952k 118,200 shares | -3% | - | |
| 30Weak | SIMILARWEB LTD. | $1.2M 147,000 shares | -3% | +260% from low-17% from high | |
| 35Weak | SMWBsell SIMILARWEB LTD. | $3.4M 383,127 shares | -8% | +289% from low-13% from high | |
| 40Moderate | SMWBsell SIMILARWEB LTD. | $6.3M 709,597 shares | -14% | +287% from low-13% from high | |
| 65Notable | SIMILARWEB LTD. | $208k 50,000 shares | +1% | +87% from low-58% from high | |
| 60Notable | SIMILARWEB LTD. | $200k 56,105 shares | +1% | +47% from low-67% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Sep 8, 2026 | SMWB SIMILARWEB LTD. | 1,000,000 1.15% of outstanding | $8.8M | Sep 8, 2026 | $20M |
| Aug 27, 2026 | SMWB SIMILARWEB LTD. | 383,127 0.44% of outstanding | $3.4M | Aug 26, 2026 | $6.3M |
| Aug 17, 2026 | SMWB SIMILARWEB LTD. | 40,000 0.05% of outstanding | $352k | Aug 13, 2026 | none |
| Aug 17, 2026 | SMWB SIMILARWEB LTD. | 134,992 0.16% of outstanding | $1.2M | Aug 14, 2026 | $5.1M |
| Aug 14, 2026 | SMWB SIMILARWEB LTD. | 534,605 0.61% of outstanding | $4.7M | Aug 13, 2026 | none |
| Sep 9, 2025 | SMWB SIMILARWEB LTD. | 100,000 0.12% of outstanding | $972k | Sep 8, 2025 | none |
| Jan 22, 2025 | SMWB SIMILARWEB LTD. | 62,500 0.08% of outstanding | $978k | Jan 21, 2025 | $11M |
| Dec 20, 2024 | SMWB SIMILARWEB LTD. | 66,667 0.09% of outstanding | $938k | Dec 20, 2024 | $8.9M |
| Dec 19, 2024 | SMWB SIMILARWEB LTD. | 170,648 0.23% of outstanding | $2.3M | Dec 18, 2024 | $6.6M |
| Dec 17, 2024 | SMWB SIMILARWEB LTD. | 120,000 0.16% of outstanding | $1.5M | Dec 16, 2024 | $4.9M |
| Dec 6, 2024 | SMWB SIMILARWEB LTD. | 150,000 0.20% of outstanding | $2.0M | Dec 5, 2024 | $2.9M |
| Dec 5, 2024 | SMWB SIMILARWEB LTD. | 74,845,441 100.00% of outstanding | $373k | Dec 4, 2024 | $1.9M |
| Dec 4, 2024 | SMWB SIMILARWEB LTD. | 10,000 0.01% of outstanding | $123k | Dec 3, 2024 | $1.8M |
| Dec 2, 2024 | SMWB SIMILARWEB LTD. | 10,000 0.01% of outstanding | $126k | Nov 29, 2024 | $1.7M |
| Nov 25, 2024 | SMWB SIMILARWEB LTD. | 10,000 0.01% of outstanding | $125k | Nov 22, 2024 | $2.0M |
| Nov 22, 2024 | SMWB SIMILARWEB LTD. | 35,000 0.05% of outstanding | $428k | Nov 21, 2024 | $1.7M |
| Nov 21, 2024 | SMWB SIMILARWEB LTD. | 43,235 0.06% of outstanding | $514k | Nov 20, 2024 | $1.2M |
| Nov 19, 2024 | SMWB SIMILARWEB LTD. | 100,000 0.13% of outstanding | $1.2M | Nov 18, 2024 | $631k |
| Mar 8, 2024 | SMWB SIMILARWEB LTD. | 25,000 0.03% of outstanding | $232k | Mar 7, 2024 | $788k |
| Mar 7, 2024 | SMWB SIMILARWEB LTD. | 56,852 0.07% of outstanding | $496k | Mar 6, 2024 | $278k |
| Mar 6, 2024 | SMWB SIMILARWEB LTD. | 32,148 0.04% of outstanding | $277k | Mar 5, 2024 | none |
Transactions
Every row this insider has filed, 48 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 24, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -113,900 | $7.69 | $876k | 3,930,881 | 18 d ago |
| Sep 24, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -400 | $8.37 | $3,348 | 3,930,481 | 18 d ago |
| Sep 22, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -34,500 | $8.38 | $289k | 4,073,181 | 19 d ago |
| Sep 23, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -28,400 | $8.54 | $242k | 4,044,781 | 19 d ago |
| Sep 18, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -37,500 | $8.25 | $309k | 4,139,881 | 21 d ago |
| Sep 21, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -32,200 | $8.40 | $271k | 4,107,681 | 21 d ago |
| Sep 16, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -45,719 | $8.40 | $384k | 4,207,781 | 25 d ago |
| Sep 17, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -30,400 | $8.35 | $254k | 4,177,381 | 25 d ago |
| Sep 14, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -52,900 | $8.54 | $452k | 4,280,191 | 27 d ago |
| Sep 14, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -52,900 | $8.54 | $452k | 4,280,191 | 27 d ago |
| Sep 14, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -52,900 | $8.54 | $452k | 4,280,191 | 27 d ago |
| Sep 15, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -26,691 | $8.53 | $228k | 4,253,500 | 27 d ago |
| Sep 15, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -26,691 | $8.53 | $228k | 4,253,500 | 27 d ago |
| Sep 15, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -26,691 | $8.53 | $228k | 4,253,500 | 27 d ago |
| Sep 10, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -59,200 | $8.06 | $477k | 4,392,091 | 29 d ago |
| Sep 11, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares10b5-1 | -59,000 | $8.05 | $475k | 4,333,091 | 29 d ago |
| Sep 8, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary shares10b5-1 | -60,700 | $8.33 | $506k | 4,537,591 | 33 d ago |
| Sep 9, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary shares10b5-1 | -86,300 | $8.06 | $695k | 4,451,291 | 33 d ago |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Ordinary shares | +164,817 | $2.71 | $447k | 4,763,108 | Aug 27, 2026 |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary shares | -164,817 | $9.00 | $1.5M | 4,598,291 | Aug 27, 2026 |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Ordinary shares | +39,302 | $2.71 | $107k | 4,637,593 | Aug 27, 2026 |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary shares | -39,302 | $9.01 | $354k | 4,598,291 | Aug 27, 2026 |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Ordinary shares | +39,000 | $0.40 | $16k | 4,637,291 | Aug 27, 2026 |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary shares | -39,000 | $9.00 | $351k | 4,598,291 | Aug 27, 2026 |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Ordinary shares | +140,008 | $3.04 | $426k | 4,738,299 | Aug 27, 2026 |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary shares | -140,008 | $9.01 | $1.3M | 4,598,291 | Aug 27, 2026 |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Options to purchase one Ordinary Sharederivative | -164,817 | $0.00 | $0 | 400,000 | Aug 27, 2026 |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Options to purchase one Ordinary Sharederivative | -39,302 | $0.00 | $0 | 400,000 | Aug 27, 2026 |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Options to purchase one Ordinary Sharederivative | -39,000 | $0.00 | $0 | 700,000 | Aug 27, 2026 |
| Aug 26, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Options to purchase one Ordinary Sharederivative | -140,008 | $0.00 | $0 | 0 | Aug 27, 2026 |
| Aug 13, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Ordinary Shares | +228,500 | $3.04 | $695k | 4,972,896 | Aug 17, 2026 |
| Aug 13, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares | -228,500 | $8.82 | $2.0M | 4,744,396 | Aug 17, 2026 |
| Aug 13, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Ordinary Shares | +200,000 | $0.40 | $80k | 4,944,396 | Aug 17, 2026 |
| Aug 13, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares | -200,000 | $8.79 | $1.8M | 4,744,396 | Aug 17, 2026 |
| Aug 13, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares | -106,105 | $8.75 | $928k | 4,638,291 | Aug 17, 2026 |
| Aug 13, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares | -40,000 | $8.90 | $356k | 4,598,291 | Aug 17, 2026 |
| Aug 14, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Ordinary Shares | +59,992 | $3.04 | $182k | 4,658,283 | Aug 17, 2026 |
| Aug 14, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares | -59,992 | $8.90 | $534k | 4,598,291 | Aug 17, 2026 |
| Aug 14, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Ordinary Shares | +75,000 | $0.40 | $30k | 4,673,291 | Aug 17, 2026 |
| Aug 14, 2026 | SMWB SIMILARWEB LTD. | SOpen-market sale Ordinary Shares | -75,000 | $8.85 | $664k | 4,598,291 | Aug 17, 2026 |
| Aug 13, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Options to purchase one Ordinary Sharederivative | -228,500 | $0.00 | $0 | 200,000 | Aug 17, 2026 |
| Aug 13, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Options to purchase one Ordinary Sharederivative | -200,000 | $0.00 | $0 | 814,000 | Aug 17, 2026 |
| Aug 14, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Options to purchase one Ordinary Sharederivative | -59,992 | $0.00 | $0 | 140,008 | Aug 17, 2026 |
| Aug 14, 2026 | SMWB SIMILARWEB LTD. | MOption exercise Options to purchase one Ordinary Sharederivative | -75,000 | $0.00 | $0 | 739,000 | Aug 17, 2026 |
| Jun 1, 2026 | SMWB SIMILARWEB LTD. | POpen-market purchase Ordinary Shares | +50,000 | $4.15 | $208k | 4,744,396 | Jun 2, 2026 |
| May 18, 2026 | SMWB SIMILARWEB LTD. | POpen-market purchase Ordinary Shares | +3,105 | $3.20 | $9,936 | 4,641,396 | May 20, 2026 |
| May 19, 2026 | SMWB SIMILARWEB LTD. | POpen-market purchase Ordinary Shares | +50,000 | $3.58 | $179k | 4,691,396 | May 20, 2026 |
| May 19, 2026 | SMWB SIMILARWEB LTD. | POpen-market purchase Ordinary Shares | +3,000 | $3.55 | $11k | 4,694,396 | May 20, 2026 |
Questions about Or Offer
Answered from the filings on this page, as of the latest one.
Is Or Offer buying or selling?
In the last 12 months Or Offer reported 2 open-market buys worth $407k and 11 open-market sells worth $17M on SEC Form 4; the latest was sold $879k of SMWB on Sep 24, 2026. Grants, option exercises and tax withholding are not counted.
How did Or Offer's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Or Offer has 0.
Where does Or Offer file Form 4?
Or Offer has filed Form 4 at SMWB (SIMILARWEB LTD.) as Chief Executive Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.