SIMILARWEB LTD. - SMWB

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
NASPERS LTD History No change 11,173,265 83,687 18.06% 15.7% 1 0 0.0% Q4 2025 Feb 17, 2026
Phoenix Financial Ltd. History New 4,285,786 32,100 0.35% 2 +4,285,786 New Q4 2025 Feb 05, 2026
MENORA MIVTACHIM HOLDINGS LTD. History Added to 4,015,494 30,076 0.14% 0.15% 3 +807,100 25.16% Q4 2025 Feb 12, 2026
Migdal Insurance & Financial Holdings Ltd. History No change 3,106,157 23,265 0.2% 0.31% 4 0 0.0% Q4 2025 Jan 28, 2026
WELLINGTON MANAGEMENT GROUP LLP History Added to 3,001,433 22,480 0.0% 0.0% 5 +543,628 22.12% Q4 2025 Feb 17, 2026
Ulysses Management LLC History No change 2,998,474 22,458 4.13% 2.04% 6 0 0.0% Q4 2025 Feb 17, 2026
Penn Capital Management Company, LLC History Reduced 1,588,680 11,909 0.95% 1.18% 7 -57,414 -3.49% Q4 2025 Feb 09, 2026
Nuveen, LLC History Added to 1,520,398 11,387 0.0% 0.0% 8 +37,457 2.53% Q4 2025 Feb 12, 2026
Y.D. More Investments Ltd History Reduced 1,171,298 8,371 0.4% 0.64% 9 -11,500 -0.97% Q4 2025 Jan 21, 2026
BlackRock, Inc. History Added to 976,514 7,314 0.0% 0.0% 10 +31,250 3.31% Q4 2025 Feb 12, 2026
CenterBook Partners LP History Reduced 960,996 7,197 0.35% 0.54% 11 -219,970 -18.63% Q4 2025 Feb 11, 2026
NEW YORK STATE COMMON RETIREMENT FUND History Added to 852,915 6,388 0.01% 0.01% 12 +3,170 0.37% Q4 2025 Feb 12, 2026
Connor, Clark & Lunn Investment Management Ltd. History Reduced 799,222 5,986 0.02% 0.03% 13 -145,330 -15.39% Q4 2025 Feb 10, 2026
S Squared Technology, LLC History Added to 775,161 5,805 2.25% 2.43% 14 +88,489 12.89% Q4 2025 Feb 13, 2026
Alpha Family Trust History No change 658,935 4,935 2.25% 2.87% 15 0 0.0% Q4 2025 Feb 12, 2026
HERALD INVESTMENT MANAGEMENT Ltd History Added to 645,465 4,853 0.63% 0.74% 16 +45,465 7.58% Q4 2025 Feb 13, 2026
First Eagle Investment Management, LLC History Added to 645,647 4,835 0.01% 0.01% 17 +100,646 18.47% Q4 2025 Feb 04, 2026
ROYCE & ASSOCIATES LP History Added to 537,406 4,025 0.04% 0.05% 18 +43,078 8.71% Q4 2025 Feb 09, 2026
UBS Group AG History Added to 536,549 4,018 0.0% 0.0% 19 +223,562 71.43% Q4 2025 Jan 29, 2026
Portolan Capital Management, LLC History Reduced 492,861 3,691 0.2% 0.59% 20 -686,139 -58.2% Q4 2025 Feb 17, 2026
CITADEL ADVISORS LLC History Reduced 486,014 3,640 0.0% 0.0% 21 -433,355 -47.14% Q4 2025 Feb 17, 2026
Sphera Management Technology Funds Ltd History Added to 480,000 3,595 1.23% 1.36% 22 +17,122 3.7% Q4 2025 Feb 17, 2026
STATE STREET CORP History Added to 370,001 2,771 0.0% 0.0% 23 +51,942 16.33% Q4 2025 Feb 13, 2026
RENAISSANCE TECHNOLOGIES LLC History Reduced 361,473 2,707 0.0% 0.0% 24 -2,500 -0.69% Q4 2025 Feb 12, 2026
MILLENNIUM MANAGEMENT LLC History Reduced 357,807 2,679 0.0% 0.0% 25 -153,114 -29.97% Q4 2025 Feb 17, 2026
JANE STREET GROUP, LLC History Reduced 320,008 2,396 0.0% 0.0% 26 -187,714 -36.97% Q4 2025 Feb 12, 2026
MARSHALL WACE, LLP History Added to 292,483 2,190 0.0% 0.0% 27 +59,269 25.41% Q4 2025 Feb 13, 2026
MORGAN STANLEY History Reduced 256,660 1,922 0.0% 0.0% 28 -42,868 -14.31% Q4 2025 Feb 13, 2026
P.A.W. CAPITAL CORP History No change 240,000 1,797 3.91% 3.85% 29 0 0.0% Q4 2025 Feb 10, 2026
ARK Investment Management LLC History Added to 236,425 1,770 0.01% 0.01% 30 +6,372 2.77% Q4 2025 Feb 11, 2026
Persistent Asset Partners Ltd History New 180,000 1,348 0.61% 31 +180,000 New Q4 2025 Feb 17, 2026
NANO CAP NEW MILLENNIUM GROWTH FUND L P History New 167,500 1,254 1.07% 32 +167,500 New Q4 2025 Feb 06, 2026
ACADIAN ASSET MANAGEMENT LLC History Reduced 158,411 1,177 0.0% 0.0% 33 -19,137 -10.78% Q4 2025 Feb 10, 2026
Russell Investments Group, Ltd. History Reduced 148,339 1,111 0.0% 0.0% 34 -3,296 -2.17% Q4 2025 Feb 17, 2026
GROUP ONE TRADING LLC History Added to 147,063 1,101 0.0% 0.0% 35 +105,894 257.22% Q4 2025 Feb 12, 2026
CDC Financial, Inc. History New 141,723 1,061 0.5% 36 +141,723 New Q4 2025 Feb 13, 2026
AMERIPRISE FINANCIAL INC History Reduced 138,422 1,036 0.0% 0.0% 37 -4,345 -3.04% Q4 2025 Feb 17, 2026
Numerai GP LLC History New 117,949 883 0.11% 38 +117,949 New Q4 2025 Feb 17, 2026
Trexquant Investment LP History Reduced 108,038 809 0.01% 0.01% 39 -28,878 -21.09% Q4 2025 Feb 17, 2026
OPPENHEIMER & CO INC History Reduced 89,390 669 0.01% 0.01% 40 -10,212 -10.25% Q4 2025 Feb 02, 2026
Point72 Asset Management, L.P. History Added to 89,149 667 0.0% 0.0% 41 +392 0.44% Q4 2025 Feb 17, 2026
Swiss National Bank History No change 87,474 655 0.0% 0.0% 42 0 0.0% Q4 2025 Feb 12, 2026
NORTHERN TRUST CORP History Added to 80,549 603 0.0% 0.0% 43 +1,300 1.64% Q4 2025 Feb 17, 2026
SEI INVESTMENTS CO History New 76,702 574 0.0% 44 +76,702 New Q4 2025 Feb 13, 2026
PEAK6 LLC History Reduced 73,598 551 0.0% 0.0% 45 -176,779 -70.61% Q4 2025 Mar 12, 2026
BLAIR WILLIAM & CO/IL History Reduced 71,044 532 0.0% 0.0% 46 -31,579 -30.77% Q4 2025 Feb 17, 2026
Jump Financial, LLC History Added to 63,321 474 0.01% 0.01% 47 +17,321 37.65% Q4 2025 Feb 17, 2026
Engineers Gate Manager LP History Reduced 62,800 470 0.01% 0.01% 48 -31,588 -33.47% Q4 2025 Feb 17, 2026
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO History Added to 60,419 452 0.0% 0.0% 49 +13,746 29.45% Q4 2025 Feb 17, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 60,200 450 0.0% 0.0% 50 -907,221 -93.78% Q4 2025 Feb 17, 2026
HRT FINANCIAL LP History Added to 58,354 437 0.0% 0.0% 51 +11,309 24.04% Q4 2025 Feb 12, 2026
Tidal Investments LLC History Reduced 58,296 436 0.0% 0.0% 52 -3,091 -5.04% Q4 2025 Feb 13, 2026
GOLDMAN SACHS GROUP INC History Added to 57,834 433 0.0% 0.0% 53 +330 0.57% Q4 2025 Mar 25, 2026
Legal & General Group Plc History Added to 56,620 424 0.0% 0.0% 54 +13,246 30.54% Q4 2025 Feb 09, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 48,217 361 0.0% 0.0% 55 -1,437 -2.89% Q4 2025 Feb 17, 2026
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC History New 43,261 324 0.0% 56 +43,261 New Q4 2025 Feb 13, 2026
PDT Partners, LLC History No change 40,794 305 0.02% 0.02% 57 0 0.0% Q4 2025 Feb 17, 2026
Verition Fund Management LLC History Reduced 35,844 268 0.0% 0.0% 58 -31,729 -46.96% Q4 2025 Feb 13, 2026
PharVision Advisers, LLC History New 35,684 267 0.14% 59 +35,684 New Q4 2025 Feb 17, 2026
VANGUARD GROUP INC History No change 35,291 264 0.0% 0.0% 60 0 0.0% Q4 2025 Jan 29, 2026
Zurcher Kantonalbank (Zurich Cantonalbank) History Added to 31,592 236 0.0% 0.0% 61 +10,560 50.21% Q4 2025 Jan 27, 2026
Pathstone Holdings, LLC History New 30,830 230 0.0% 62 +30,830 New Q4 2025 Feb 13, 2026
ExodusPoint Capital Management, LP History New 29,931 224 0.0% 64 +29,931 New Q4 2025 Feb 17, 2026
FEDERATED HERMES, INC. History Reduced 30,000 224 0.0% 0.0% 63 -1,000 -3.23% Q4 2025 Feb 12, 2026
D. E. Shaw & Co., Inc. History Reduced 28,376 212 0.0% 0.0% 65 -6,226 -17.99% Q4 2025 Feb 17, 2026
JPMORGAN CHASE & CO History Reduced 20,249 151 0.0% 0.0% 66 -1,276 -5.93% Q4 2025 Feb 11, 2026
FOX RUN MANAGEMENT, L.L.C. History New 19,528 146 0.02% 67 +19,528 New Q4 2025 Feb 11, 2026
SIMPLEX TRADING, LLC History Reduced 18,997 142 0.0% 0.0% 68 -66,225 -77.71% Q4 2025 Feb 11, 2026
TEACHER RETIREMENT SYSTEM OF TEXAS History Added to 18,016 134 0.0% 0.0% 69 +1,608 9.8% Q4 2025 Jan 28, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 18,036 134 0.0% 0.0% 70 +1,305 7.8% Q4 2025 Feb 09, 2026
Qube Research & Technologies Ltd History New 16,582 124 0.0% 71 +16,582 New Q4 2025 Feb 17, 2026
Police & Firemen's Retirement System of New Jersey History No change 16,124 120 0.0% 0.0% 72 0 0.0% Q4 2025 Feb 13, 2026
LAZARD ASSET MANAGEMENT LLC History Reduced 13,736 102 0.0% 0.0% 73 -6,025 -30.49% Q4 2025 Feb 17, 2026
Walleye Trading LLC History Reduced 13,171 98 0.0% 0.0% 74 -41,257 -75.8% Q4 2025 Feb 13, 2026
TWO SIGMA ADVISERS, LP History Reduced 13,000 97 0.0% 0.0% 75 -11,800 -47.58% Q4 2025 Feb 17, 2026
BOOTHBAY FUND MANAGEMENT, LLC History New 11,961 89 0.0% 76 +11,961 New Q4 2025 Feb 17, 2026
Brooklyn Investment Group History New 11,732 85 0.0% 77 +11,732 New Q4 2025 Feb 12, 2026
Quantbot Technologies LP History New 11,347 84 0.0% 78 +11,347 New Q4 2025 Feb 10, 2026
BANK OF AMERICA CORP /DE/ History Reduced 11,122 83 0.0% 0.0% 79 -45,091 -80.21% Q4 2025 Feb 17, 2026
MEITAV INVESTMENT HOUSE LTD History No change 10,000 74 0.0% 0.0% 80 0 0.0% Q4 2025 Feb 10, 2026
KLP KAPITALFORVALTNING AS History No change 8,100 60 0.0% 0.0% 81 0 0.0% Q4 2025 Jan 28, 2026
DEUTSCHE BANK AG\ History No change 5,667 42 0.0% 0.0% 82 0 0.0% Q4 2025 Feb 11, 2026
Quarry LP History New 2,409 18 0.0% 83 +2,409 New Q4 2025 Feb 13, 2026
CITIGROUP INC History Reduced 1,334 9 0.0% 0.0% 84 -972 -42.15% Q4 2025 Feb 13, 2026
SBI Securities Co., Ltd. History No change 1,023 7 0.0% 0.0% 85 0 0.0% Q4 2025 Feb 03, 2026
BARCLAYS PLC History Added to 679 5 0.0% 0.0% 87 +557 456.56% Q4 2025 Feb 13, 2026
WELLS FARGO & COMPANY/MN History Added to 800 5 0.0% 0.0% 86 +266 49.81% Q4 2025 Feb 13, 2026
Crewe Advisors LLC History No change 734 5 0.0% 0.0% 88 0 0.0% Q4 2025 Jan 16, 2026
State of Wyoming History New 544 4 0.0% 89 +544 New Q4 2025 Feb 11, 2026
ROYAL BANK OF CANADA History New 512 3 0.0% 90 +512 New Q4 2025 Feb 17, 2026
OSAIC HOLDINGS, INC. History Reduced 383 2 0.0% 0.0% 91 -260 -40.44% Q4 2025 Feb 17, 2026
BNP PARIBAS FINANCIAL MARKETS History Added to 220 1 0.0% 0.0% 92 +1 0.46% Q4 2025 Feb 10, 2026
SCALAR GAUGE MANAGEMENT, LLC History Closed out 0 0 2.09% -441,742 -100.0% Q3 2025 Oct 31, 2025
ESSEX INVESTMENT MANAGEMENT CO LLC History Closed out 0 0 0.54% -380,793 -100.0% Q3 2025 Nov 06, 2025
CEERA INVESTMENTS, LLC History Closed out 0 0 0.93% -319,027 -100.0% Q3 2025 Nov 05, 2025
Palogic Value Management, L.P. History Closed out 0 0 0.44% -117,423 -100.0% Q3 2025 Nov 14, 2025
Legato Capital Management LLC History Closed out 0 0 0.11% -109,711 -100.0% Q3 2025 Nov 12, 2025
Walleye Capital LLC History Closed out 0 0 0.0% -34,700 -100.0% Q3 2025 Nov 14, 2025
Marex Group plc History Closed out 0 0 0.0% -20,000 -100.0% Q3 2025 Nov 14, 2025
State of Tennessee, Department of Treasury History Closed out 0 0 0.0% -13,617 -100.0% Q3 2025 Nov 14, 2025
Cresset Asset Management, LLC History Closed out 0 0 0.0% -10,468 -100.0% Q3 2025 Jan 22, 2026
WEXFORD CAPITAL LP History Closed out 0 0 0.01% -6,860 -100.0% Q3 2025 Nov 14, 2025
Larson Financial Group LLC History Closed out 0 0 0.0% -2,686 -100.0% Q3 2025 Nov 14, 2025
CWM, LLC History Closed out 0 0 0.0% -1,139 -100.0% Q3 2025 Oct 15, 2025
Tower Research Capital LLC (TRC) History Closed out 0 0 0.0% -986 -100.0% Q3 2025 Nov 14, 2025
Smartleaf Asset Management LLC History New 47 0 +47 New Q4 2025 Feb 13, 2026
Caitong International Asset Management Co., Ltd History New 36 0 +36 New Q4 2025 Mar 03, 2026
FMR LLC History No change 6 0 0 0.0% Q4 2025 Feb 17, 2026
JONES FINANCIAL COMPANIES LLLP History No change 100 0 0 0.0% Q4 2025 Feb 17, 2026
NewEdge Advisors, LLC History No change 109 0 0.0% 0 0.0% Q4 2025 Feb 18, 2026