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Disclosery

SMWB SIMILARWEB LTD

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SHS (common), issuer CIK 1842731

81 managers (81 13F filers) reported a position in SMWB shares at 2026-03-31, 42,264,448 shares in all. 18 filers opened a position and 36 filers sold out during the quarter.

Managers
81
13F filers
81
New
18
Added
32
Reduced
18
Sold out
36
Shares held by filers
42,264,448

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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$29.2M11.53%013F-HRTimelineGroup
MENORA MIVTACHIM HOLDINGS LTD.in group MENORA MIVTACHIM HOLDINGS LTD.4,015,494$10.5M0.05%013F-HRTimelineGroup
Y.D. More Investments Ltdin group Y.D. More Investments Ltd1,151,298$8.34M0.33%-20,00013F-HRTimelineGroup
ION Crossover Partners Ltd3,030,826$7.91M21.45%013F-HRTimeline
Ulysses Management LLC2,998,474$7.83M2.95%013F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…2,966,757$7.74M<0.01%-34,67613F-HRTimelineGroup
S SQUARED TECHNOLOGY, LLC1,600,000$4.18M1.58%+824,83913F-HR/ATimeline
CenterBook Partners LP1,325,113$3.46M0.19%+364,11713F-HRTimeline
Alpha Family Trustin group Alpha Family Trust658,935$2.26M1.1%013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC825,763$2.16M<0.01%+467,95613F-HRTimelineGroup
MIRABELLA FINANCIAL SERVICES LLP792,664$2.07M0.2%new13F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC739,673$1.93M<0.01%+378,20013F-HRTimeline
HERALD INVESTMENT MANAGEMENT Ltd645,465$1.68M0.23%013F-HRTimeline
CDC Financial, Inc.639,014$1.67M1.38%+497,29113F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP638,188$1.67M<0.01%+345,70513F-HRTimelineGroup
Sphera Management Technology Funds Ltdin group SPHERA FUNDS MANAGEMENT LTD.615,000$1.61M0.91%+135,00013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY591,863$1.54M<0.01%+335,20313F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…533,634$1.39M<0.01%-265,58813F-HRTimeline
P.A.W. CAPITAL CORP500,000$1.3M1.04%+260,00013F-HR/ATimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC476,005$1.24M<0.01%+275,89113F-HRTimelineGroup
Qube Research & Technologies Ltd416,146$1.09M<0.01%+399,56413F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC405,607$1.05M<0.01%+247,19613F-HRTimelineGroup
NANO CAP NEW MILLENNIUM GROWTH FUND L P390,000$1.02M0.95%+222,50013F-HRTimeline
Penn Capital Management Company, LLC360,366$941K0.07%-1,228,31413F-HRTimeline
ARK Investment Management LLCin group ARK Investment Management LLC352,070$919K0.01%+115,64513F-HRTimelineGroup
PEAK6 LLCin group PEAK6 LLC321,156$838K0.02%+320,05813F-HRTimelineGroup
Schonfeld Strategic Advisors LLC289,174$755K0.01%new13F-HRTimeline
Militia Capital Management LLCin group Militia Capital Management LLC236,000$616K0.14%13F-HR/ATimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC231,266$604K<0.01%+45,05813F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd228,880$597K0.01%new13F-HRTimelineGroup
Phoenix Financial Ltd.in group Phoenix Financial Ltd.216,904$566K0.01%-4,068,88213F-HRTimelineGroup
LAVELLE CAPITAL LP202,727$529K0.33%013F-HRTimeline
UBS Group AGgroup of 2 filers holding198,543$518K-381,267Timeline
Persistent Asset Partners Ltd180,000$470K0.18%013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO175,207$435K<0.01%+154,95813F-HR/ATimelineGroup
GSA CAPITAL PARTNERS LLP152,105$397K0.02%new13F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC147,616$385K0.01%+84,29513F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.127,504$333K<0.01%-849,01013F-HRTimelineGroup
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLCin group SUSQUEHANNA INTERNATIONAL GRO…125,623$328K0.01%new13F-HRTimelineGroup
Palogic Value Management, L.P.114,000$298K0.13%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC110,174$288K<0.01%+108,84013F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP109,396$286K<0.01%-260,60513F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.100,204$262K<0.01%+11,05513F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd94,234$246K<0.01%new13F-HRTimelineGroup
OPPENHEIMER & CO INCin group OPPENHEIMER ASSET MANAGEMENT …91,088$238K<0.01%+1,69813F-HRTimelineGroup
Voleon Capital Management LP88,704$232K<0.01%new13F-HRTimeline
Engineers Gate Manager LP87,418$228K<0.01%+24,61813F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP79,076$206K<0.01%new13F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.70,000$183K<0.01%+40,00013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/63,985$167K<0.01%+52,86313F-HRTimelineGroup
Tidal Investments LLCin group Tidal Investments LLC61,626$161K<0.01%+3,33013F-HRTimelineGroup
Centiva Capital, LP60,122$157K0.01%new13F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.58,552$153K<0.01%+30,17613F-HRTimelineGroup
AXQ CAPITAL, LP52,410$137K0.02%new13F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC50,390$132K<0.01%+19,56013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…52,019$129K<0.01%-96,32013F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC42,643$111K<0.01%-15,19113F-HRTimelineGroup
Graham Capital Management, L.P.36,634$95.6K<0.01%new13F-HRTimeline
HRT FINANCIAL LP22,670$59K<0.01%-35,68413F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC20,111$52K<0.01%new13F-HRTimelineGroup
PharVision Advisers, LLC18,927$49.4K0.5%-16,75713F-HR/ATimeline
NEW YORK STATE COMMON RETIREMENT FUND18,774$49K<0.01%-834,14113F-HRTimeline
Aquatic Capital Management LLC18,008$47K<0.01%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC13,020$34K<0.01%new13F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC11,228$29.3K<0.01%-2,50813F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC10,611$27.7K<0.01%+9,93213F-HRTimelineGroup
Cresset Asset Management, LLC10,144$26.5K<0.01%new13F-HRTimeline
MEITAV INVESTMENT HOUSE LTDin group MEITAV INVESTMENT HOUSE LTD10,000$26.1K<0.01%013F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN8,200$21.4K<0.01%+7,40013F-HR/ATimelineGroup
SIMPLEX TRADING, LLC2,904$7.58K<0.01%-16,09313F-HRTimeline
SBI Securities Co., Ltd.1,024$2.67K<0.01%+113F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS890$2.32K<0.01%+67013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA200$1K<0.01%-31213F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.300$783<0.01%-8313F-HRTimelineGroup
Caitong International Asset Management …242$632<0.01%+22413F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP100$252<0.01%013F-HRTimelineGroup
ASSETMARK, INCin group ASSETMARK, INC48$125<0.01%new13F-HRTimelineGroup
Smartleaf Asset Management LLC29$72<0.01%-1813F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…12$31<0.01%new13F-HRTimelineGroup
FMR LLCin group FMR LLC6$16<0.01%013F-HRTimelineGroup
Covestor Ltd0$00%013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.