Who Owns Similarweb Ltd. (SMWB)?Hedge Fund & Institutional Holders

$2.63+0.03 (+0.96%)Communication ServicesNYSE

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$8.368780972320002e+190T

% of Float Held

2.1561207643875165e+298%

QoQ Change in Holders

+15 / -2

Price History

$2.55$6.28$10.00$13.73$17.46Aug 24Jun 25Mar 26

SMWB — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
Phoenix Financial Ltd.New Position+4.3M+$32.0M
Migdal Insurance & Financial Holdings Ltd.New Position+3.1M+$23.3M
NEW YORK STATE COMMON RETIREMENT FUNDNew Position+853K+$6.0M
Persistent Asset Partners LtdNew Position+180K+$1.3M
NANO CAP NEW MILLENNIUM GROWTH FUND L PNew Position+168K+$1.3M
CDC Financial, Inc.New Position+142K+$1.1M
OPPENHEIMER & CO INCNew Position+89K+$669K
PharVision Advisers, LLCNew Position+36K+$267K
TEACHER RETIREMENT SYSTEM OF TEXASNew Position+18K+$134K
KLP KAPITALFORVALTNING ASNew Position+8K+$60K
Quarry LPNew Position+2K+$18K
SBI Securities Co., Ltd.New Position+1K+$7K
State of WyomingNew Position+544+$4K
Caitong International Asset Management Co., LtdNew Position+461+$3K
FEDERATED HERMES, INC.New Position+30K+$0

SMWB — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
Penn Capital Management Company, LLCDecreased-57K-$15.3B
Y.D. More Investments LtdDecreased-12K-$11.3B
CenterBook Partners LPDecreased-220K-$11.0B
Portolan Capital Management, LLCDecreased-686K-$11.0B
Connor, Clark & Lunn Investment Management Ltd.Decreased-145K-$8.8B
MILLENNIUM MANAGEMENT LLCDecreased-153K-$4.7B
RENAISSANCE TECHNOLOGIES LLCDecreased-3K-$3.4B
SUSQUEHANNA INTERNATIONAL GROUP, LLPClosed Position-322K-$3.0B
MORGAN STANLEYDecreased-43K-$2.8B
CITADEL ADVISORS LLCDecreased-61K-$2.4B
Russell Investments Group, Ltd.Decreased-3K-$1.4B
AMERIPRISE FINANCIAL INCDecreased-4K-$1.3B
Trexquant Investment LPDecreased-29K-$1.3B
Palogic Value Management, L.P.Decreased-50K-$1.1B
Legato Capital Management LLCClosed Position-110K-$1.0B

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1NASPERS LTD11,173,265$83.7M18.06%Share
2Viola Ventures V.C. Management 4 Ltd.10,810,778$81.0M90.22%Share
3Phoenix Financial Ltd.4,285,786$32.0M0.35%Share
4MENORA MIVTACHIM HOLDINGS LTD.4,015,494$30.1M0.14%Share
5Migdal Insurance & Financial Holdings Ltd.3,106,157$23.3M0.20%Share
6Ulysses Management LLC2,998,474$22.5M4.13%Share
7WELLINGTON MANAGEMENT GROUP LLP2,069,214$15.0M0.00%Share
8Penn Capital Management Company, LLC1,588,680$11.9M0.95%Share
9Y.D. More Investments Ltd1,171,298$8.4M0.40%Share
10Nuveen, LLC1,011,411$7.0M0.00%Share
11CenterBook Partners LP960,996$7.0M0.34%Share
12WELLINGTON MANAGEMENT GROUP LLP889,253$6.0M0.00%Share
13NEW YORK STATE COMMON RETIREMENT FUND852,915$6.0M0.01%Share
14S Squared Technology, LLC775,161$5.8M2.25%Share
15Connor, Clark & Lunn Investment Management Ltd.799,222$5.0M0.01%Share
16HERALD INVESTMENT MANAGEMENT Ltd645,465$4.9M0.63%Share
17First Eagle Investment Management, LLC645,647$4.8M0.01%Share
18ROYCE & ASSOCIATES LP537,406$4.0M0.04%Share
19UBS Group AG536,549$4.0M0.00%Share
20Alpha Family Trust658,935$4.0M1.83%Share
21BlackRock, Inc.594,922$4.0M0.00%Share
22Portolan Capital Management, LLC492,861$3.7M0.20%Share
23Sphera Management Technology Funds Ltd480,000$3.6M1.23%Share
24Nuveen, LLC508,987$3.0M0.00%Share
25CITADEL ADVISORS LLC285,900$2.0M0.00%Put
26STATE STREET CORP370,001$2.0M0.00%Share
27RENAISSANCE TECHNOLOGIES LLC361,473$2.0M0.00%Share
28BlackRock, Inc.350,016$2.0M0.00%Share
29MILLENNIUM MANAGEMENT LLC357,807$2.0M0.00%Share
30P.A.W. CAPITAL CORP240,000$1.8M3.91%Share
31ARK Investment Management LLC236,425$1.8M0.01%Share
32GROUP ONE TRADING LLC194,700$1.5M0.00%Put
33Persistent Asset Partners Ltd180,000$1.3M0.61%Share
34NANO CAP NEW MILLENNIUM GROWTH FUND L P167,500$1.3M1.07%Share
35GROUP ONE TRADING LLC147,063$1.1M0.00%Share
36CDC Financial, Inc.141,723$1.1M0.50%Share
37CITADEL ADVISORS LLC200,114$1.0M0.00%Share
38ACADIAN ASSET MANAGEMENT LLC158,411$1.0M0.00%Share
39MARSHALL WACE, LLP208,241$1.0M0.00%Share
40AMERIPRISE FINANCIAL INC138,422$1.0M0.00%Share
41MORGAN STANLEY137,483$1.0M0.00%Share
42JANE STREET GROUP, LLC133,800$1.0M0.00%Put
43Trexquant Investment LP108,038$809K0.01%Share
44OPPENHEIMER & CO INC89,390$669K0.01%Share
45Palogic Value Management, L.P.67,423$504K0.21%Share
46PDT Partners, LLC40,794$305K0.02%Share
47PharVision Advisers, LLC35,684$267K0.14%Share
48Zurcher Kantonalbank (Zurich Cantonalbank)31,592$236K0.00%Share
49VANGUARD GROUP INC25,901$193K0.00%Share
50TEACHER RETIREMENT SYSTEM OF TEXAS18,016$134K0.00%Share

SMWB Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 202599$405.2M+19
Q3 202580$446.3B-13
Q2 202593$351.9B-19
Q1 2025112$415.0B-2
Q4 2024114$21.5T+31
Q3 202483$35.1T+19
Q2 202464$19.6T+5
Q1 202459$25.0T—

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As of Q4 2025, 50 institutional investors hold SMWB (Similarweb Ltd.). The largest holder is NASPERS LTD with $83.7M in shares. This quarter, 15 institutions opened new positions and 2 closed their positions.

Frequently Asked Questions

How many hedge funds own SMWB?

As of Q4 2025, 50 institutional investors report holding SMWB (Similarweb Ltd.) in their 13F filings.

Who is the largest institutional holder of SMWB?

The largest institutional holder of SMWB is NASPERS LTD with $83.7M in shares.

Is institutional ownership of SMWB increasing or decreasing?

This quarter, 15 institutions opened new positions in SMWB and 2 closed their positions.