SMWB · Similarweb Ltd. · Holdings

$8.93 +0.28 (+3.24%)

Market Cap

$763.35M

88.25M

Volume · Oct 20 490.13K Avg daily vol (3M) 732.01K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of SMWB: 13F, 13D and 13G, insiders and funds →

Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 73

Total Value: $248,786,523

Total Shares: 40,507,912

Institutional Ownership Trend

22 quarters

Holder Concentration

Across 70 13F filers

Top Holder

27.8%

of institutional value

Top 5

61.6%

of institutional value

Top 10

75.5%

of institutional value

HHI

1,133

Broadly held

Who Holds SMWB

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 69 filers, like-for-like change -5.2%; actively managed books -6.5%; index-like books -46.2%.

Holder type	Share	Filers	Change	New	Exited
Registered adviser	23.5%	22	-9.6%	8	10
Exempt adviser	8.2%	4	-34.7%	0	1
Adviser	0.1%	1	-87.9%	0	2
Bank	1.3%	6	-25.5%	0	2
Broker-dealer	1.2%	1	+51.0%	0	0
Non-US	1.6%	2	-0.1%	0	1
Holding company	10.0%	5	+8.0%	0	1
Benefit plan	0.0%	0	—	0	0
Unknown	54.1%	28	+2.1%	8	10

Style	Share	Filers	Change	New	Exited
Index-like	1.2%	3	-46.2%	0	2
Systematic-like	7.1%	14	-43.7%	3	7
Concentrated	16.6%	6	-10.3%	0	2
Diversified active	39.6%	43	+8.2%	13	16
Unknown	35.5%	3	-0.1%	0	0
Not measured	0.0%	0	—	0	0

Turnover	Share	Filers	Change	New	Exited
Low turnover	44.6%	22	-3.3%	4	8
Medium turnover	31.5%	15	+1.2%	3	8
High turnover	11.2%	27	-34.3%	8	10
Unknown	12.7%	5	+13.1%	1	1
Not measured	0.0%	0	—	0	0

Holding horizon	Share	Filers	Change	New	Exited
Short horizon	14.2%	15	+5.5%	4	4
Medium horizon	5.3%	11	-42.1%	2	4
Long horizon	75.0%	36	-2.1%	8	14
Unknown	5.6%	7	-11.9%	2	5
Not measured	0.0%	0	—	0	0

13F book size	Share	Filers	Change	New	Exited
Under $1B	59.6%	22	+0.2%	8	4
$1B to $10B	6.8%	13	-34.9%	3	8
$10B to $100B	18.9%	16	-6.1%	3	9
$100B or more	14.6%	18	-4.4%	2	6
Not measured	0.0%	0	—	0	0

Client base	Share	Filers	Change	New	Exited
Individuals and high net worth	0.2%	5	+682.1%	4	1
Pooled investment vehicles	20.1%	14	-11.5%	4	7
Registered funds and BDCs	2.1%	1	+101.8%	0	1
Other investment advisers	0.0%	1	0.0%	0	0
Diversified	1.1%	1	-16.5%	0	0
Governments and sovereign funds	0.0%	0	-100.0%	0	1
Other	0.0%	0	—	0	0
Unknown	76.5%	47	-3.7%	8	17

Private funds	Share	Filers	Change	New	Exited
Hedge funds	16.3%	16	-27.2%	2	7
Private equity funds	7.6%	1	0.0%	0	0
Real estate funds	0.0%	1	0.0%	0	0
Mixed private funds	7.3%	1	-2.3%	0	0
Private funds, type not stated	0.0%	1	-80.3%	1	1
No private funds	0.5%	6	-49.0%	5	3
Securitized asset funds	0.0%	0	—	0	0
Other private funds	0.0%	0	—	0	0
Unknown	68.3%	43	+2.1%	8	16

Location	Share	Filers	Change	New	Exited
United States	44.9%	49	-1.0%	14	24
Outside the US	55.1%	20	-8.4%	2	3

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Conviction and Crowding

69 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders

8.70% of filers hold it in their top 10

Mar 31, 2026: 3

Holders above 5%

median weight 0.004%

Mar 31, 2026: 2

Crowding

—

a foreign private issuer reports ordinary shares, a different unit from the listed shares

Private-fund advisers

—

of shares outstanding

Institutional ownership

—

a foreign private issuer reports ordinary shares, a different unit from the listed shares

Top 10 holders

75.8%

of 13F shares, Herfindahl 0.114

Active holders

-6.5%

like-for-like share change of active filers

5% stakes on record

0 13D, 2 13G (0 institutional, 0 passive, 2 exempt)

How long holders have held it value-weighted 11.7 quarters

Under 1 year 19.2% 1 to 3 years 34.7% 3 years or more 46.1% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $327,353 (1 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost

$8.29

estimated per share

Mar 31, 2026: $8.54

Quarter-end price

$6.13

implied by 13F values

Estimated gain or loss

-26.1%

price against the estimated cost

Estimated at a loss

63.0%

of costed 13F value

Estimated cost covers 59.0% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies SMWB's active holders also own, quarter ended Jun 30, 2026

#	Company	Shared holders	Similarity
1	CMRC Commerce.com, Inc.	4	0.267
2	ODD Oddity Tech Ltd	3	0.234
3	SPT Sprout Social, Inc.	3	0.207
4	SDGR Schrodinger, Inc.	3	0.194
5	APPS Digital Turbine, Inc.	3	0.188
6	INMD InMode Ltd.	3	0.155
7	MGNI Magnite, Inc.	4	0.151
8	BAND Bandwidth Inc.	3	0.141
9	FIVN Five9, Inc.	3	0.137
10	CAMT Camtek Ltd	3	0.137

Shareholder Targets

13F filers that own its peers but not SMWB, quarter ended Jun 30, 2026

Found through its holder-overlap peers: CMRC, ODD, SPT, SDGR, APPS, INMD, MGNI, BAND, FIVN, CAMT, SEDG, NVMI, DT, VICR, DOCN, LFUS, TSEM, AGIX, AKAM, ZM. 2,119 filers in all.

#	Filer	In peers	Of book	Largest peers
1	VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like	$6,091,308,722 18 held	0.130%	AKAM, ZM, TSEM
2	VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active	$5,216,392,711 17 held	0.230%	ZM, AKAM, DOCN
3	JPMORGAN CHASE & CO Bank, Diversified active	$4,611,395,257 20 held	0.280%	DOCN, VICR, ZM
4	PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active	$3,143,585,449 16 held	0.320%	TSEM, VICR, DOCN
5	GEODE CAPITAL MANAGEMENT, LLC Registered adviser, Index-like	$2,498,237,227 19 held	0.130%	ZM, AKAM, DT
6	Clal Insurance Enterprises Holdings Ltd Unknown, Concentrated	$2,285,125,225 5 held	11.0%	TSEM, NVMI, CAMT
7	Harel Insurance Investments & Financial Services Ltd. Unknown, Diversified active	$2,249,450,629 5 held	12.3%	NVMI, TSEM, CAMT
8	BANK OF AMERICA CORP /DE/ Bank, Diversified active	$2,005,247,101 20 held	0.150%	AKAM, NVMI, AGIX
9	Capital World Investors Adviser, Diversified active	$1,981,106,128 3 held	0.230%	AKAM, TSEM, NVMI
10	Migdal Insurance & Financial Holdings Ltd. Holding company, Concentrated	$1,863,133,893 6 held	12.4%	NVMI, TSEM, CAMT

Fund Ownership of SMWB by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 0.00% of shares outstanding.

Fund type	Of shares outstanding	Change	Shares	Funds
Index funds	0.00%	0.00 pp	0	0
Index ETFs	0.00%	-0.41 pp	0	0
Active ETFs	0.00%	0.00 pp	0	0
Active funds	0.08%	-0.09 pp	69,497	1
Unclassified	0.00%	0.00 pp	2,259	2
All registered funds	0.08%	-0.50 pp	71,756	3

How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 23 Exempt adviser 5 Adviser 1 Bank 6 Broker-dealer 1 Non-US 2 Holding company 5 Unknown 30

Showing 77 of 77

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

NASPERS LTD

$68,492,114

27.53%

11,173,265

MENORA MIVTACHIM HOLDINGS LTD.

$24,614,978

9.89%

4,015,494

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Menora Mivtachim Insurance Ltd. joint	4,015,494	$24,614,978	100.0%	Defined

WELLINGTON MANAGEMENT GROUP LLP

$22,219,318

8.93%

3,624,685

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wellington Management Company LLP	2,439,494	$14,954,098	67.3%	Defined
Wellington Trust Company, NA joint	1,133,687	$6,949,501	31.3%	Defined
Wellington Management Australia Pty Ltd	51,504	$315,719	1.4%	Defined

ION Crossover Partners Ltd

$18,578,963

7.47%

3,030,826

Ulysses Management LLC

$17,951,545

7.22%

2,928,474

S SQUARED TECHNOLOGY, LLC

$10,359,700

4.16%

1,690,000

Schonfeld Strategic Advisors LLC

$7,421,155

2.98%

1,210,629

Y.D. More Investments Ltd

$7,031,324

2.83%

1,147,035

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
More Provident Funds & Pension Ltd.	1,147,035	$7,031,324	100.0%	Defined

ARK Investment Management LLC

$5,116,484

2.06%

834,663

RENAISSANCE TECHNOLOGIES LLC

$4,375,152

1.76%

713,728

CDC Financial, Inc.

$4,133,048

1.66%

674,233

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
COGHILL CLINT D	674,233	$4,133,048	100.0%	Defined

Alpha Family Trust

$4,039,271

1.62%

658,935

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Cheryl Saban joint	658,935	$4,039,271	100.0%	Defined

NANO CAP NEW MILLENNIUM GROWTH FUND L P

$3,984,500

1.60%

650,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AZG TANGIBLE ASSETS FUND LLC	650,000	$3,984,500	100.0%	Sole

HERALD INVESTMENT MANAGEMENT Ltd

$3,956,700

1.59%

645,465

P.A.W. CAPITAL CORP

$3,923,200

1.58%

640,000

Sphera Management Technology Funds Ltd

$3,769,950

1.52%

615,000

CenterBook Partners LP

$3,676,387

1.48%

599,737

Lotus Technology Management, LP

$3,257,537

1.31%

531,409

JANE STREET GROUP, LLC

$3,146,387

1.26%

513,277

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	196,160	$1,202,460	38.2%	Defined
Jane Street Global Trading, LLC	317,117	$1,943,927	61.8%	Defined

PEAK6 LLC

$2,971,958

1.19%

484,822

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PEAK6 Investments LLC joint	484,822	$2,971,958	100.0%	Defined

Connor, Clark & Lunn Investment Management Ltd.

$2,732,085

1.10%

445,691

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	445,691	$2,732,085	100.0%	Sole

UBS Group AG

$2,472,400

0.99%

403,328

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	398,200	$2,440,966	98.7%	Defined
UBS Switzerland AG	5,128	$31,434	1.3%	Defined

CITADEL ADVISORS LLC

$2,125,485

0.85%

346,735

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	346,735	$2,125,485	100.0%	Defined

Y-Intercept (Hong Kong) Ltd

$2,030,892

0.82%

261,713

MORGAN STANLEY

$1,644,084

0.66%

268,203

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	4,918	$30,147	1.8%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	262,085	$1,606,581	97.7%	Defined
MORGAN STANLEY SMITH BARNEY LLC	1,200	$7,356	0.4%	Defined

LAVELLE CAPITAL LP

$1,242,716

0.50%

202,727

Persistent Asset Partners Ltd

$1,103,400

0.44%

180,000

SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC

$1,041,395

0.42%

169,885

D. E. Shaw & Co., Inc.

$980,401

0.39%

159,935

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	38,535	$236,219	24.1%	Defined
D. E. Shaw Investment Management, L.L.C. joint	121,400	$744,182	75.9%	Defined

ANTIPODES PARTNERS Ltd

$892,534

0.36%

145,601

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$848,496

0.34%

138,417

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	138,417	$848,496	100.0%	Other

BlackRock, Inc.

$818,557

0.33%

133,533

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BlackRock Fund Advisors	133,533	$818,557	100.0%	Sole

TWO SIGMA INVESTMENTS, LP

$795,986

0.32%

129,851

MYDA Advisors LLC

$613,000

0.25%

100,000

Pathstone Holdings, LLC

$609,260

0.24%

99,390

GSA CAPITAL PARTNERS LLP

$587,860

0.24%

95,899

JANE STREET GROUP, LLC

$543,731

0.22%

88,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	88,700	$543,731	100.0%	Defined

State of Wyoming

$542,247

0.22%

88,458

STATE STREET CORP

$472,341

0.19%

77,054

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SSGA FUNDS MANAGEMENT, INC.	77,054	$472,341	100.0%	Defined

Quadrature Capital Ltd

$418,108

0.17%

68,207

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	68,207	$418,108	100.0%	Other

MARSHALL WACE, LLP

$373,812

0.15%

60,981

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	60,981	$373,812	100.0%	Other

Centiva Capital, LP

$281,483

0.11%

45,919

WealthTrust Axiom LLC

$273,183

0.11%

44,565

CITADEL ADVISORS LLC

$237,844

0.10%

38,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	38,800	$237,844	100.0%	Defined

IMC-Chicago, LLC

$229,911

0.09%

37,506

WEALTH ENHANCEMENT ADVISORY SERVICES, LLC

$221,160

0.09%

28,500

SIMPLEX TRADING, LLC

$202,694

0.08%

33,066

Qube Research & Technologies Ltd

$195,222

0.08%

31,847

LAZARD ASSET MANAGEMENT LLC

$144,459

0.06%

23,566

SG Americas Securities, LLC

$135,252

0.05%

22,064

MILLENNIUM MANAGEMENT LLC

$111,553

0.04%

18,198

Integrated Wealth Concepts LLC

$91,950

0.04%

15,000

CITADEL ADVISORS LLC

$88,272

0.04%

14,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	14,400	$88,272	100.0%	Defined

R Squared Ltd

$68,999

0.03%

11,256

XTX Topco Ltd

$66,853

0.03%

10,906

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	10,906	$66,853	100.0%	Defined

PRELUDE CAPITAL MANAGEMENT, LLC

$63,819

0.03%

10,411

PharVision Advisers, LLC

$63,555

0.03%

10,368

Olympiad Research LP

$63,365

0.03%

10,337

Cresset Asset Management, LLC

$62,182

0.02%

10,144

MARATHON CAPITAL MANAGEMENT

$61,300

0.02%

10,000

WELLS FARGO & COMPANY/MN

$56,396

0.02%

9,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	1,000	$6,130	10.9%	Defined
WELLS FARGO CLEARING SERVICES, LLC	8,200	$50,266	89.1%	Defined

CITIGROUP INC

$46,042

0.02%

7,511

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	7,511	$46,042	100.0%	Defined

ACADIAN ASSET MANAGEMENT LLC

$41,377

0.02%

6,750

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	6,750	$41,377	100.0%	Defined

ROYAL BANK OF CANADA

$36,167

0.01%

5,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Dominion Securities Inc.	5,900	$36,167	100.0%	Defined

PEAK6 LLC

$18,390

0.01%

3,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PEAK6 Investments LLC joint	3,000	$18,390	100.0%	Defined

SBI Securities Co., Ltd.

$6,277

0.00%

1,024

BARCLAYS PLC

$4,229

0.00%

690

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	690	$4,229	100.0%	Defined

Tower Research Capital LLC (TRC)

$2,445

0.00%

399

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Tower Research Capital Investments LLC	399	$2,445	100.0%	Other

OSAIC HOLDINGS, INC.

$1,839

0.00%

300

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	300	$1,839	100.0%	Defined

Quarry LP

$913

0.00%

149

JONES FINANCIAL COMPANIES LLLP

$613

0.00%

100

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	100	$613	100.0%	Sole

Smartleaf Asset Management LLC

$177

0.00%

Caitong International Asset Management Co., Ltd

$67

0.00%

FMR LLC

$36

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STRATEGIC ADVISERS LLC	6	$36	100.0%	Defined

Farther Finance Advisors, LLC

$23

0.00%

Fortitude Family Office, LLC

$15

0.00%

Covestor Ltd

0.00%

Key facts CIK 1842731 CUSIP M84137104 13F (30d) 5 filings 5 filers Visit website Investor relations