Company · Ownership research

SIMILARWEB LTD. SMWB

CIK 0001842731 · CUSIP M84137104

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP M84137104 (SMWB), not CUSIP M84137904 (SMWB), CUSIP M84137954 (SMWB), and does not merge CUSIPs.

This page lists the top 20 of 77 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	NASPERS LTD CIK 1106051 · View history	$86.82M 11,173,265 shares	11.90%	0(0.00%)Unchanged	SEC filing ↗ Aug 1, 2024	▾
02	Phoenix Financial Ltd. CIK 1679543 · View history	$22.54M 2,900,434 shares	0.35%	-636.50K(-18.00%)Reduced	SEC filing ↗ Aug 12, 2024	▾
03	Ulysses Management LLC CIK 1510912 · View history	$17.74M 2,283,228 shares	4.26%	0(0.00%)Unchanged	SEC filing ↗ Aug 14, 2024	▾
04	Migdal Insurance & Financial Holdings Ltd. CIK 1415912 · View history	$15.28M 1,966,068 shares	0.26%	-141.47K(-6.70%)Reduced	SEC filing ↗ Jul 29, 2024	▾
05	Alpha Family Trust CIK 1568991 · View history	$13.07M 1,681,777 shares	7.66%	0(0.00%)Unchanged	SEC filing ↗ Aug 9, 2024	▾
06	Portolan Capital Management, LLC CIK 1350290 · View history	$10.62M 1,367,259 shares	0.87%	-673.34K(-33.00%)Reduced	SEC filing ↗ Aug 14, 2024	▾
07	Y.D. More Investments Ltd CIK 1870364 · View history	$10.21M 1,314,263 shares	1.04%	0(0.00%)Unchanged	SEC filing ↗ Aug 8, 2024	▾
08	MENORA MIVTACHIM HOLDINGS LTD. CIK 1351917 · View history	$8.26M 1,063,408 shares	0.06%	+1.06MNew	SEC filing ↗ Aug 13, 2024	▾
09	SCALAR GAUGE MANAGEMENT, LLC CIK 1965542 · View history	$4.61M 593,923 shares	2.69%	+215.22K(+56.80%)Added	SEC filing ↗ Aug 14, 2024	▾
10	S Squared Technology, LLC CIK 1322924 · View history	$4.20M 540,210 shares	1.85%	+232.19K(+75.40%)Added	SEC filing ↗ Aug 14, 2024	▾
11	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$3.43M 442,917 shares	0.01%	+167.50K(+60.80%)Added	SEC filing ↗ Aug 6, 2024	▾
12	Nuveen Asset Management, LLC CIK 1521019 · View history	$2.67M 343,478 shares	0.00%	+80.20K(+30.50%)Added	SEC filing ↗ Aug 9, 2024	▾
13	BlackRock Inc. CIK 1364742 · View history	$2.60M 334,885 shares	0.00%	+73.02K(+27.90%)Added	SEC filing ↗ Aug 13, 2024	▾
14	Russell Investments Group, Ltd. CIK 1692234 · View history	$2.41M 310,117 shares	0.00%	-3.20K(-1.00%)Reduced	SEC filing ↗ Aug 8, 2024	▾
15	ESSEX INVESTMENT MANAGEMENT CO LLC CIK 201772 · View history	$2.37M 304,544 shares	0.44%	+44.09K(+16.90%)Added	SEC filing ↗ Aug 12, 2024	▾
16	ARK Investment Management LLC CIK 1697748 · View history	$2.23M 287,585 shares	0.02%	-96.64K(-25.20%)Reduced	SEC filing ↗ Jul 26, 2024	▾
17	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$2.03M 261,508 shares	0.00%	+28.26K(+12.10%)Added	SEC filing ↗ Aug 14, 2024	▾
18	CEERA INVESTMENTS, LLC CIK 1860698 · View history	$2.02M 259,827 shares	0.85%	+71.99K(+38.30%)Added	SEC filing ↗ Aug 6, 2024	▾
19	Connor, Clark & Lunn Investment Management Ltd. CIK 1596800 · View history	$1.64M 211,468 shares	0.01%	+119.55K(+130.10%)Added	SEC filing ↗ Aug 9, 2024	▾
20	Walleye Capital LLC CIK 1758720 · View history	$1.28M 164,273 shares	0.01%	-19.22K(-10.50%)Reduced	SEC filing ↗ Aug 14, 2024	▾

Showing 20 / 77 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

30,383,807

Not deduplicated across managers

Disclosed value

$236.06M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

SIMILARWEB LTD. · Q2 2024

Explore all 77 reporting institutions.

This page includes 20 of 77 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.