Senior insider sale

Chief Executive Officer at SIMILARWEB LTD. — senior position signals high conviction

$6.47M

507.88K shares

What this filing means

OFFER OR plans to sell 507.88K shares of SIMILARWEB LTD. valued at approximately $6.47M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

OFFER OR

Filed: 12/17/2024ACC: 0001976408-24-000406

InsiderOFFER ORCIK 1910424

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IssuerSIMILARWEB LTD.CIK 1842731

Officer· Chief Executive Officer

Since Mar 2026

507.88K

Shares to sell

$6.47M

Approx. market value

3.80M

Acquired (3 months)

Planned

14 completed

Securities Acquired — Last 3 Months1

Sort

Founder Shares

Cash

2/9/2009

3.80M

Total acquired3.80M

Acquisition Date	Type	Amount Acquired	Gift
2/9/2009	Founder Shares Cash	3.80M	—
Total		3.80M

Planned & Completed Dispositions15

Sort

Completed

—Completed

Units to sell

2.92K

Market value

$38.2K

12/13/2024

—Completed

Units to sell

29.62K

Market value

$390.7K

12/12/2024

—Completed

Units to sell

74.35K

Market value

$976.1K

12/11/2024

—Completed

Units to sell

14.81K

Market value

$195.8K

12/6/2024

—Completed

Units to sell

34.80K

Market value

$456.1K

12/5/2024

—Completed

Units to sell

30K

Market value

$377.5K

12/4/2024

—Completed

Units to sell

45.57K

Market value

$594.5K

12/4/2024

—Completed

Units to sell

10K

Market value

$124.0K

12/3/2024

—Completed

Units to sell

10K

Market value

$122.6K

11/29/2024

—Completed

Units to sell

10K

Market value

$128.5K

11/22/2024

—Completed

Units to sell

35K

Market value

$435.5K

11/21/2024

—Completed

Units to sell

43.23K

Market value

$520.7K

11/20/2024

—Completed

Units to sell

8.35K

Market value

$100.3K

11/19/2024

—Completed

Units to sell

39.24K

Market value

$471.7K

11/18/2024

Planned — Approximate Date

NYSEPlanned

Units to sell

120K

Market value

$1.53M

12/16/2024

Total

Units

507.88K

Value

$6.47M

Date	Units to Sell	Approx. Market Value	Exchange	Status
Completed
12/13/2024	2.92K	$38.2K	—	Completed
12/12/2024	29.62K	$390.7K	—	Completed
12/11/2024	74.35K	$976.1K	—	Completed
12/6/2024	14.81K	$195.8K	—	Completed
12/5/2024	34.80K	$456.1K	—	Completed
12/4/2024	30K	$377.5K	—	Completed
12/4/2024	45.57K	$594.5K	—	Completed
12/3/2024	10K	$124.0K	—	Completed
11/29/2024	10K	$122.6K	—	Completed
11/22/2024	10K	$128.5K	—	Completed
11/21/2024	35K	$435.5K	—	Completed
11/20/2024	43.23K	$520.7K	—	Completed
11/19/2024	8.35K	$100.3K	—	Completed
11/18/2024	39.24K	$471.7K	—	Completed
Planned — Approximate Date
12/16/2024	120K	$1.53M	NYSE	Planned
Total	507.88K	$6.47M