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Disclosery

SMWB SIMILARWEB LTD

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SHS (common), issuer CIK 1842731

98 managers (99 13F filers) reported a position in SMWB shares at 2025-12-31, 49,801,681 shares in all. 15 filers opened a position and 12 filers sold out during the quarter.

Managers
98
13F filers
99
New
15
Added
30
Reduced
31
Sold out
12
Shares held by filers
49,801,681

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
NASPERS LTDin group NASPERS LTD11,173,265$83.7M18.06%013F-HRTimelineGroup
Phoenix Financial Ltd.in group Phoenix Financial Ltd.4,285,786$32.1M0.35%+1,292,70013F-HRTimelineGroup
MENORA MIVTACHIM HOLDINGS LTD.in group MENORA MIVTACHIM HOLDINGS LTD.4,015,494$30.1M0.14%+807,10013F-HRTimelineGroup
Migdal Insurance & Financial Holdings L…in group Migdal Insurance & Financial …3,106,157$23.3M0.2%013F-HRTimelineGroup
ION Crossover Partners Ltd3,030,826$22.7M29.29%13F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…3,001,433$22.5M<0.01%+543,62813F-HRTimelineGroup
Ulysses Management LLC2,998,474$22.5M5.89%013F-HRTimeline
Penn Capital Management Company, LLC1,588,680$11.9M0.95%-57,41413F-HRTimeline
Nuveen, LLCin group TIAA1,520,398$11.4M<0.01%+37,45713F-HRTimelineGroup
Y.D. More Investments Ltdin group Y.D. More Investments Ltd1,171,298$8.37M0.4%-11,50013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.976,514$7.31M<0.01%+31,25013F-HRTimelineGroup
CenterBook Partners LP960,996$7.2M0.35%-219,97013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND852,915$6.39M0.01%+3,17013F-HRTimeline
Connor, Clark & Lunn Investment Managem…799,222$5.99M0.02%-145,33013F-HRTimeline
S SQUARED TECHNOLOGY, LLC775,161$5.81M2.25%+88,48913F-HRTimeline
Alpha Family Trustin group Alpha Family Trust658,935$4.94M2.25%013F-HRTimelineGroup
HERALD INVESTMENT MANAGEMENT Ltd645,465$4.85M0.63%+45,46513F-HRTimeline
First Eagle Investment Management, LLCin group First Eagle Investment Manage…645,647$4.84M0.01%+100,64613F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding579,810$4.34M+266,823Timeline
ROYCE & ASSOCIATES LP537,406$4.03M0.04%+43,07813F-HRTimeline
Portolan Capital Management, LLCin group Portolan Capital Management, …492,861$3.69M0.2%-686,13913F-HRTimelineGroup
Sphera Management Technology Funds Ltdin group SPHERA FUNDS MANAGEMENT LTD.480,000$3.6M1.88%+17,12213F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP370,001$2.77M<0.01%+51,94213F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC361,473$2.71M<0.01%-2,50013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC357,807$2.68M<0.01%-153,11413F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP292,483$2.19M<0.01%+59,26913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY256,660$1.92M<0.01%-42,86813F-HR/ATimelineGroup
P.A.W. CAPITAL CORP240,000$1.8M4.08%013F-HRTimeline
ARK Investment Management LLCin group ARK Investment Management LLC236,425$1.77M0.01%+6,37213F-HRTimelineGroup
LAVELLE CAPITAL LP202,727$1.52M0.96%13F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC200,114$1.5M<0.01%-60,75513F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC186,208$1.39M<0.01%+34,08613F-HRTimelineGroup
Persistent Asset Partners Ltd180,000$1.35M0.65%new13F-HRTimeline
NANO CAP NEW MILLENNIUM GROWTH FUND L P167,500$1.25M1.07%13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC158,411$1.18M<0.01%-19,13713F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…148,339$1.11M<0.01%-3,29613F-HRTimelineGroup
GROUP ONE TRADING LLC147,063$1.1M0.03%+105,89413F-HRTimeline
CDC Financial, Inc.141,723$1.06M0.93%13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC138,422$1.04M<0.01%-4,34513F-HRTimelineGroup
Numerai GP LLC117,949$883K0.11%new13F-HRTimeline
Trexquant Investment LP108,038$809K0.01%-28,87813F-HRTimeline
OPPENHEIMER & CO INCin group OPPENHEIMER ASSET MANAGEMENT …89,390$670K0.01%-10,21213F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.89,149$668K<0.01%+39213F-HRTimelineGroup
Swiss National Bank87,474$655K<0.01%013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP80,549$603K<0.01%+1,30013F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO76,702$574K<0.01%new13F-HRTimelineGroup
BLAIR WILLIAM & CO/IL71,044$532K<0.01%-31,57913F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC63,321$474K0.01%+17,32113F-HRTimelineGroup
Engineers Gate Manager LP62,800$470K0.01%-31,58813F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…60,419$453K<0.01%+13,74613F-HRTimeline
HRT FINANCIAL LP58,354$437K<0.01%+11,30913F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC58,296$437K<0.01%-3,09113F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC57,834$433K<0.01%+33013F-HR/ATimelineGroup
Legal & General Group Plcin group Legal & General Group Plc56,620$424K<0.01%+13,24613F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…48,217$361K<0.01%-1,43713F-HRTimeline
PDT Partners, LLC40,794$306K0.02%013F-HRTimeline
Verition Fund Management LLC35,844$268K<0.01%-31,72913F-HRTimeline
PharVision Advisers, LLC35,684$267K0.14%new13F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC35,291$264K<0.01%013F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…31,592$237K<0.01%+10,56013F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC30,830$231K<0.01%013F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.30,000$225K<0.01%-1,00013F-HRTimelineGroup
ExodusPoint Capital Management, LP29,931$224K<0.01%new13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.28,376$213K<0.01%-6,22613F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO20,249$152K<0.01%-1,27613F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.19,528$146K0.02%new13F-HRTimeline
SIMPLEX TRADING, LLC18,997$142K<0.01%-66,22513F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS18,016$135K<0.01%+1,60813F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC18,036$135K<0.01%+1,30513F-HRTimelineGroup
Qube Research & Technologies Ltd16,582$124K<0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…16,124$121K<0.01%013F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC13,736$103K<0.01%-6,02513F-HRTimelineGroup
TWO SIGMA ADVISERS, LPin group TWO SIGMA INVESTMENTS, LP13,000$97.4K<0.01%-11,80013F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC11,961$89.6K<0.01%new13F-HRTimeline
Brooklyn Investment Group11,732$85.2K<0.01%new13F-HRTimeline
Quantbot Technologies LP11,347$85K<0.01%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/11,122$83.3K<0.01%-45,09113F-HRTimelineGroup
MEITAV INVESTMENT HOUSE LTDin group MEITAV INVESTMENT HOUSE LTD10,000$74.9K<0.01%013F-HRTimelineGroup
KLP KAPITALFORVALTNING AS8,100$60.7K<0.01%013F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\5,667$42.4K<0.01%013F-HRTimelineGroup
Quarry LP2,409$18K<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC1,334$9.99K<0.01%-97213F-HRTimelineGroup
PEAK6 LLCin group PEAK6 LLC1,098$8.22K<0.01%-44,87913F-HR/ATimelineGroup
SBI Securities Co., Ltd.1,023$7.66K<0.01%013F-HRTimeline
Walleye Trading LLCin group Walleye Capital LLC871$6.52K<0.01%-8,05713F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN800$5.99K<0.01%+26613F-HRTimelineGroup
Crewe Advisors LLC734$5.5K<0.01%013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC679$5.09K<0.01%+55713F-HRTimelineGroup
State of Wyoming544$4.08K<0.01%new13F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA512$3K<0.01%-1,10013F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.383$2.87K<0.01%-26013F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS220$1.65K<0.01%+113F-HRTimelineGroup
NewEdge Advisors, LLC109$816<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP100$749<0.01%013F-HRTimelineGroup
Smartleaf Asset Management LLC47$350<0.01%new13F-HRTimeline
Caitong International Asset Management …18$135<0.01%new13F-HR/ATimeline
FMR LLCin group FMR LLC6$45<0.01%013F-HRTimelineGroup
Covestor Ltd0$00%013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.