SMWBSimilarweb Ltd.

Insider trades (Form 4)

Directors, top managers and anyone owning more than 10% of a company must report every time they buy, sell or receive its shares, within two business days, on a Form 4. Here is what Similarweb's insiders did over the last year, and what each kind of trade means.

Bought on the open market$1.0M7 trades by 4 people

Sold on the open market$16.5M28 trades by 1 person

Sales that were planned ahead64%made under a pre-set trading plan (Rule 10b5-1)

Filings read16every Form 4 in the last year

Buying and selling, month by month

Open-market trades only, by value. Tap a month.

DecJanFebMarAprMayJunJulAugSepOctNov

■ above the line: bought · ■ below: sold

Who traded

Person and role	Bought	Sold	Shares held after
Or OfferChief executive (Chief Executive Officer)	$407.1K	$16.5M	3.9M
Harel Moshe Beit-OnDirector	$291.8K	–	10.9M
Barak EilamDirector	$193.0K	–	101.3K
Tamar Rapaport-DagimDirector	$128.9K	–	63.6K

Every trade (51)

Sep 24, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−113,900 sharesat $7.69 = $875.8Kowns 3,930,881 after
Sep 24, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−400 sharesat $8.37 = $3.3Kowns 3,930,481 after
Sep 23, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−28,400 sharesat $8.54 = $242.4Kowns 4,044,781 after
Sep 22, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−34,500 sharesat $8.38 = $289.0Kowns 4,073,181 after
Sep 21, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−32,200 sharesat $8.40 = $270.6Kowns 4,107,681 after
Sep 18, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−37,500 sharesat $8.25 = $309.3Kowns 4,139,881 after
Sep 17, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−30,400 sharesat $8.35 = $253.7Kowns 4,177,381 after
Sep 16, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−45,719 sharesat $8.40 = $383.9Kowns 4,207,781 after
Sep 15, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−26,691 sharesat $8.53 = $227.6Kowns 4,253,500 after
Sep 15, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−26,691 sharesat $8.53 = $227.6Kowns 4,253,500 after
Sep 15, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−26,691 sharesat $8.53 = $227.6Kowns 4,253,500 after
Sep 14, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−52,900 sharesat $8.54 = $451.6Kowns 4,280,191 after
Sep 14, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−52,900 sharesat $8.54 = $451.6Kowns 4,280,191 after
Sep 14, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−52,900 sharesat $8.54 = $451.6Kowns 4,280,191 after
Sep 11, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−59,000 sharesat $8.05 = $474.9Kowns 4,333,091 after
Sep 10, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−59,200 sharesat $8.06 = $477.3Kowns 4,392,091 after
Sep 9, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−86,300 sharesat $8.06 = $695.3Kowns 4,451,291 after
Sep 8, 2026Sold shares on the open marketPlanned aheadOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−60,700 sharesat $8.33 = $505.6Kowns 4,537,591 after
Aug 26, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. Form 4+164,817 sharesat $2.71 = $446.7Kowns 4,763,108 after
Aug 26, 2026Sold shares on the open marketOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−164,817 sharesat $9.00 = $1.5Mowns 4,598,291 after
Aug 26, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. Form 4+39,302 sharesat $2.71 = $106.5Kowns 4,637,593 after
Aug 26, 2026Sold shares on the open marketOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−39,302 sharesat $9.01 = $354.2Kowns 4,598,291 after
Aug 26, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. Form 4+39,000 sharesat $0.40 = $15.6Kowns 4,637,291 after
Aug 26, 2026Sold shares on the open marketOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−39,000 sharesat $9.00 = $351.2Kowns 4,598,291 after
Aug 26, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. Form 4+140,008 sharesat $3.04 = $425.6Kowns 4,738,299 after
Aug 26, 2026Sold shares on the open marketOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−140,008 sharesat $9.01 = $1.3Mowns 4,598,291 after
Aug 26, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. (Options to purchase one Ordinary Share) Form 4−164,817 unitsno price (not a sale)owns 400,000 after
Aug 26, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. (Options to purchase one Ordinary Share) Form 4−39,302 unitsno price (not a sale)owns 400,000 after
Aug 26, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. (Options to purchase one Ordinary Share) Form 4−39,000 unitsno price (not a sale)owns 700,000 after
Aug 26, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. (Options to purchase one Ordinary Share) Form 4−140,008 unitsno price (not a sale)
Aug 14, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. Form 4+59,992 sharesat $3.04 = $182.4Kowns 4,658,283 after
Aug 14, 2026Sold shares on the open marketOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−59,992 sharesat $8.90 = $534.0Kowns 4,598,291 after
Aug 14, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. Form 4+75,000 sharesat $0.40 = $30.0Kowns 4,673,291 after
Aug 14, 2026Sold shares on the open marketOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−75,000 sharesat $8.85 = $663.9Kowns 4,598,291 after
Aug 14, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. (Options to purchase one Ordinary Share) Form 4−59,992 unitsno price (not a sale)owns 140,008 after
Aug 14, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. (Options to purchase one Ordinary Share) Form 4−75,000 unitsno price (not a sale)owns 739,000 after
Aug 13, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. Form 4+228,500 sharesat $3.04 = $694.6Kowns 4,972,896 after
Aug 13, 2026Sold shares on the open marketOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−228,500 sharesat $8.82 = $2.0Mowns 4,744,396 after
Aug 13, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. Form 4+200,000 sharesat $0.40 = $80.0Kowns 4,944,396 after
Aug 13, 2026Sold shares on the open marketOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−200,000 sharesat $8.79 = $1.8Mowns 4,744,396 after
Aug 13, 2026Sold shares on the open marketOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−106,105 sharesat $8.75 = $928.4Kowns 4,638,291 after
Aug 13, 2026Sold shares on the open marketOr Offer · Chief executive (Chief Executive Officer)Insiders sell for many reasons: paying taxes, buying a house, spreading their savings. Many sales are planned months ahead. Form 4−40,000 sharesat $8.90 = $356.0Kowns 4,598,291 after
Aug 13, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. (Options to purchase one Ordinary Share) Form 4−228,500 unitsno price (not a sale)owns 200,000 after
Aug 13, 2026Turned options or share units into sharesOr Offer · Chief executive (Chief Executive Officer)Swapping options or units they already had for actual shares. Often followed by a sale or tax withholding. (Options to purchase one Ordinary Share) Form 4−200,000 unitsno price (not a sale)owns 814,000 after
Jun 1, 2026Bought shares on the open marketOr Offer · Chief executive (Chief Executive Officer) · DirectorThey paid their own money at the market price. People often watch these most closely. Form 4+50,000 sharesat $4.15 = $207.5Kowns 4,744,396 after
May 21, 2026Bought shares on the open marketBarak Eilam · DirectorThey paid their own money at the market price. People often watch these most closely. Form 4+50,000 sharesat $3.86 = $193.0Kowns 101,315 after
May 20, 2026Bought shares on the open marketHarel Moshe Beit-On · DirectorThey paid their own money at the market price. People often watch these most closely. Form 4+75,000 sharesat $3.89 = $291.8Kowns 10,885,778 after
May 19, 2026Bought shares on the open marketOr Offer · Chief executive (Chief Executive Officer) · DirectorThey paid their own money at the market price. People often watch these most closely. Form 4+50,000 sharesat $3.58 = $179.0Kowns 4,691,396 after
May 19, 2026Bought shares on the open marketOr Offer · Chief executive (Chief Executive Officer) · DirectorThey paid their own money at the market price. People often watch these most closely. Form 4+3,000 sharesat $3.55 = $10.7Kowns 4,694,396 after
May 18, 2026Bought shares on the open marketOr Offer · Chief executive (Chief Executive Officer) · DirectorThey paid their own money at the market price. People often watch these most closely. Form 4+3,105 sharesat $3.20 = $9.9Kowns 4,641,396 after
May 18, 2026Bought shares on the open marketTamar Rapaport-Dagim · DirectorThey paid their own money at the market price. People often watch these most closely. Form 4+40,000 sharesat $3.22 = $128.9Kowns 63,584 after

Read straight from the Form 4 filings Similarweb's directors, top managers and large owners sent to the SEC. Insiders sell for many reasons: taxes, diversifying, planned sales. Buying with their own money is rarer. None of this says whether to buy or sell the shares.

Finding insider trades…Reading each Form 4…Adding them up…

Person and role

Bought

Sold

Shares held after

Or OfferChief executive (Chief Executive Officer)

$407.1K

$16.5M

3.9M

Harel Moshe Beit-OnDirector

$291.8K

–

10.9M

Barak EilamDirector

$193.0K

–

101.3K

Tamar Rapaport-DagimDirector

$128.9K

–

63.6K