SIMILARWEB LTD. - Ordinary shares, par value 0.01 NIS (SMWB) Institutional Ownership

13F Institutional Holders and Ownership History from Q2 2021 to Q4 2025

Type / Class
Equity / Ordinary shares, par value 0.01 NIS
Symbol
SMWB on NYSE
Shares outstanding
82,804,048
Price per share
$7.32
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
45,724,161
Total reported value
$425,584,367
% of total 13F portfolios
0%
Share change
+3,352,771
Value change
+$32,700,729
Number of holders
94
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of SIMILARWEB LTD. - Ordinary shares, par value 0.01 NIS (SMWB) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Viola Growth Management Fund 2 Ltd. 13% $82,486,236 10,810,778 Harel Beit-On 31 Dec 2024
Phoenix Financial Ltd. 5% $32,468,461 4,173,324 Phoenix Financial Ltd. 15 Dec 2025

As of 30 Sep 2025, 94 institutional investors reported holding 45,724,161 shares of SIMILARWEB LTD. - Ordinary shares, par value 0.01 NIS (SMWB). This represents 55% of the company’s total 82,804,048 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of SIMILARWEB LTD. - Ordinary shares, par value 0.01 NIS (SMWB) together control 49% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
NASPERS LTD 13% 11,173,265 0% 16% $103,911,365
MENORA MIVTACHIM HOLDINGS LTD. 3.9% 3,208,394 +38% 0.15% $29,838,064
Migdal Insurance & Financial Holdings Ltd. 3.8% 3,106,157 +3.3% 0.31% $28,887,000
Ulysses Management LLC 3.6% 2,998,474 0% 6.5% $27,885,808
Phoenix Financial Ltd. 3.6% 2,993,086 0% 0.34% $27,835,700
WELLINGTON MANAGEMENT GROUP LLP 3% 2,457,805 +164% 0% $22,857,587
Penn Capital Management Company, LLC 2% 1,646,094 +299% 1.2% $15,321,339
Nuveen, LLC 1.8% 1,482,941 +14% 0% $13,791,352
Y.D. More Investments Ltd 1.4% 1,182,798 -4.2% 0.64% $11,344,132
CenterBook Partners LP 1.4% 1,180,966 -18% 0.54% $10,982,984
Portolan Capital Management, LLC 1.4% 1,179,000 +62% 0.59% $10,964,700
BlackRock, Inc. 1.1% 945,264 +11% 0% $8,790,955
Connor, Clark & Lunn Investment Management Ltd. 1.1% 944,552 +2.6% 0.03% $8,784,334
NEW YORK STATE COMMON RETIREMENT FUND 1% 849,745 0.01% $7,902,629
S Squared Technology, LLC 0.83% 686,672 0% 2.4% $6,386,050
Alpha Family Trust 0.8% 658,935 -23% 2.9% $6,128,097
Herald Investment Management Ltd 0.72% 600,000 0% 0.74% $5,580,000
First Eagle Investment Management, LLC 0.66% 545,001 +222% 0.01% $5,068,510
MILLENNIUM MANAGEMENT LLC 0.62% 510,921 +66% 0% $4,751,565
ROYCE & ASSOCIATES LP 0.6% 494,328 0.05% $4,597,250
Sphera Management Technology Funds Ltd 0.56% 462,878 +15% 2.2% $4,304,765
SCALAR GAUGE MANAGEMENT, LLC 0.53% 441,742 -60% 2.1% $4,108,201
ESSEX INVESTMENT MANAGEMENT CO LLC 0.46% 380,793 +46% 0.54% $3,541,375
RENAISSANCE TECHNOLOGIES LLC 0.44% 363,973 +2.4% 0% $3,384,949
SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.39% 322,321 +146% 0% $2,997,585

Institutional Holders of SIMILARWEB LTD. - Ordinary shares, par value 0.01 NIS (SMWB) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 1,172,032 $8,377,058 -$82,193 $7.32 2
2025 Q3 45,724,161 $425,584,367 +$32,700,729 $9.30 94
2025 Q2 39,421,999 $309,072,075 -$25,108,591 $7.84 109
2025 Q1 44,869,261 $371,050,037 +$11,060,980 $8.27 109
2024 Q4 41,334,757 $585,694,097 +$81,455,239 $14.17 112
2024 Q3 35,350,723 $312,488,678 +$44,808,638 $8.84 93
2024 Q2 30,383,807 $236,058,514 +$2,468,377 $7.77 76
2024 Q1 30,002,420 $269,664,457 +$24,271,694 $9.00 73
2023 Q4 27,327,571 $148,483,812 -$2,713,075 $5.33 54
2023 Q3 33,175,176 $214,079,411 +$32,261,423 $6.48 51
2023 Q2 28,061,800 $184,076,669 -$3,184,390 $6.56 46
2023 Q1 28,524,216 $192,826,355 +$1,605,090 $6.76 41
2022 Q4 28,985,254 $184,506,669 +$2,355,742 $6.43 45
2022 Q3 27,260,764 $160,023,552 -$1,398,711 $5.86 43
2022 Q2 27,377,253 $225,856,900 -$12,112,701 $8.25 45
2022 Q1 28,312,445 $366,690,000 +$3,417,483 $12.95 42
2021 Q4 27,949,255 $500,553,000 +$30,410,579 $17.91 44
2021 Q3 14,519,959 $303,896,319 -$6,442,609 $20.93 34
2021 Q2 14,926,736 $294,056,000 +$294,056,003 $19.70 45