SMWB · Insider Trading

Similarweb Ltd.

Iron condor setups Expected move IV rank history Fibonacci levels Insider trading

Every open-market purchase and sale reported by SMWB officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings

most recent

Open-Market Buys

code P

Sales

code S

Reporting Insiders

current holders

SMWB — Recent Form 4 Transactions (latest 2026-09-25)

Filed	Insider	Role	Type	Shares	Value
2026-09-25	Or Offer	Chief Executive Officer	Sell	−114,300	−$879.10K
2026-09-24	Or Offer	Chief Executive Officer	Sell	−62,900	−$531.44K
2026-09-22	Or Offer	Chief Executive Officer	Sell	−69,700	−$579.89K
2026-09-18	Or Offer	Chief Executive Officer	Sell	−76,119	−$637.65K
2026-09-16	Or Offer	Chief Executive Officer	Sell	−79,591	−$679.24K
2026-09-16	Or Offer	Chief Executive Officer	Sell	−79,591	−$679.24K
2026-09-16	Or Offer	Chief Executive Officer	Sell	−79,591	−$679.24K
2026-09-14	Or Offer	Chief Executive Officer	Sell	−118,200	−$952.24K
2026-09-10	Or Offer	Chief Executive Officer	Sell	−147,000	−$1.20M
2026-08-27	Or Offer	Chief Executive Officer	MIXED	—	−$2.46M
2026-08-17	Or Offer	Chief Executive Officer	MIXED	−146,105	−$5.27M
2026-06-02	Or Offer	Chief Executive Officer	Buy	+50,000	+$207.50K
2026-05-22	Barak Eilam	Director	Buy	+50,000	+$193.00K
2026-05-21	Harel Moshe Beit-On	Director	Buy	+75,000	+$291.75K
2026-05-20	Or Offer	Chief Executive Officer	Buy	+56,105	+$199.59K
2026-05-19	Tamar Rapaport-Dagim	Director	Buy	+40,000	+$128.88K

SMWB — Current Insider Holders

Insider	Role	Shares Held	Value
Harel Moshe Beit-On	Director	10,885,778	$95.14M
Or Offer	Chief Executive Officer	3,930,881	$34.36M
Barak Eilam	Director	101,315	$885.49K
Tamar Rapaport-Dagim	Director	63,584	$555.72K

SMWB Insider Trading FAQ

Who are the insiders at SMWB?

4 officers, directors and 10%+ beneficial owners currently report holdings in SMWB via SEC Form 4.

Are SMWB insiders buying or selling?

Across the 16 most recent Form 4 filings for SMWB, 5 were open-market purchases (code P) and 9 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.

How current is SMWB insider data?

Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent SMWB filing is dated 2026-09-25.

How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the SMWB quote page; the site-wide leaderboard is on the insider transactions hub.