SMWB — SIMILARWEB LTD
Reported value held$66.24M
Funds holding (latest)30
SectorTechnology
Funds holding (Q2 2026)15
Institutional value$39.24M · 6.40M sh
New / Add / Cut / Exit0 / 8 / 6 / 3
Top-5 / Top-10 concentration91.3% / 99.2%
Institutional holdings change
Reducing -14.8%
(-1.11M sh)
Institutional value change
Up +100.1%
As of Q2 2026, 15 SEC-registered investment managers reported holding SMWB (SIMILARWEB LTD) in their latest 13F filings, with a combined reported value of $39.24M across 6.40M shares. That is -14.8% by share count (-1.11M shares) versus the previous quarter, while reported value moved +100.1%. Ownership is concentrated: the five largest holders account for 91.3% of reported value and the top ten for 99.2%.
Compared with the prior quarter, 8 added to existing stakes, 6 trimmed, 3 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
SMWB is classified in the Technology sector.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
Q2 2026 — 15 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Wellington Management Group history | 3.62M | $22.22M | 0.00% | Add |
| ARK Invest history | 834.66K | $5.12M | 0.03% | Add |
| Renaissance Technologies history | 713.73K | $4.38M | 0.01% | Reduce |
| UBS Group AG history | 403.33K | $2.47M | 0.00% | Add |
| Morgan Stanley history | 268.20K | $1.64M | 0.00% | Reduce |
| D. E. Shaw & Co history | 159.94K | $980.40K | 0.00% | Add |
| BlackRock Inc history | 133.53K | $818.56K | 0.00% | Add |
| Two Sigma Investments history | 129.85K | $795.99K | 0.00% | Add |
| Marshall Wace history | 60.98K | $373.81K | 0.00% | Reduce |
| Lazard Asset Management history | 23.57K | $144.46K | 0.00% | Add |
| Millennium Management history | 18.20K | $111.55K | 0.00% | Reduce |
| Citadel Advisors history | 14.40K | $88.27K | 0.00% | Reduce |
| Wells Fargo & Co history | 9.20K | $56.40K | 0.00% | Add |
| Citigroup Inc history | 7.51K | $46.04K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 6 | $37 | 0.00% | Hold |
Q1 2026 — 18 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Wellington Management Group history | 2.97M | $7.74M | 0.00% | Reduce |
| Millennium Management history | 825.76K | $2.16M | 0.00% | Add |
| Renaissance Technologies history | 739.67K | $1.93M | 0.00% | Add |
| Marshall Wace history | 638.19K | $1.67M | 0.00% | Add |
| Citadel Advisors history | 600.11K | $1.57M | 0.00% | Add |
| Morgan Stanley history | 591.86K | $1.54M | 0.00% | Add |
| ARK Invest history | 352.07K | $918.90K | 0.01% | Add |
| UBS Group AG history | 198.54K | $518.20K | 0.00% | Reduce |
| BlackRock Inc history | 127.50K | $332.79K | 0.00% | Reduce |
| Citigroup Inc history | 110.17K | $287.55K | 0.00% | Add |
| Point72 Asset Management history | 100.20K | $261.53K | 0.00% | Add |
| Two Sigma Investments history | 79.08K | $206.39K | 0.00% | New |
| Bank of America Corp history | 63.98K | $167.00K | 0.00% | Add |
| D. E. Shaw & Co history | 58.55K | $152.82K | 0.00% | Add |
| Goldman Sachs Group history | 42.64K | $111.30K | 0.00% | Reduce |
| Lazard Asset Management history | 11.23K | $29.30K | 0.00% | Reduce |
| Wells Fargo & Co history | 8.20K | $21.40K | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 6 | $16 | 0.00% | Hold |
Q4 2025 — 25 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Wellington Management Group history | 3.00M | $22.48M | 0.00% | Add |
| BlackRock Inc history | 976.51K | $7.31M | 0.00% | Add |
| First Eagle Investment Management history | 645.65K | $4.84M | 0.01% | Add |
| Royce & Associates history | 537.41K | $4.03M | 0.04% | Add |
| UBS Group AG history | 536.55K | $4.02M | 0.00% | Add |
| Citadel Advisors history | 486.01K | $3.64M | 0.00% | Reduce |
| Renaissance Technologies history | 361.47K | $2.71M | 0.00% | Reduce |
| Millennium Management history | 357.81K | $2.68M | 0.00% | Reduce |
| Marshall Wace history | 292.48K | $2.19M | 0.00% | Add |
| Morgan Stanley history | 256.66K | $1.92M | 0.00% | Reduce |
| ARK Invest history | 236.43K | $1.77M | 0.01% | Add |
| Point72 Asset Management history | 89.15K | $667.73K | 0.00% | Hold |
| Northern Trust Corp history | 80.55K | $603.31K | 0.00% | Add |
| Goldman Sachs Group history | 57.83K | $433.18K | 0.00% | Add |
| Legal & General Investment Management America history | 56.62K | $424.08K | 0.00% | Add |
| Vanguard Group history | 35.29K | $264.33K | 0.00% | Hold |
| D. E. Shaw & Co history | 28.38K | $212.54K | 0.00% | Reduce |
| JPMorgan Chase & Co history | 20.25K | $151.66K | 0.00% | Reduce |
| Geode Capital Management history | 18.04K | $134.74K | 0.00% | Add |
| Lazard Asset Management history | 13.74K | $102.88K | 0.00% | Reduce |
| Bank of America Corp history | 11.12K | $83.30K | 0.00% | Reduce |
| Deutsche Bank AG history | 5.67K | $42.45K | 0.00% | Hold |
| Citigroup Inc history | 1.33K | $9.99K | 0.00% | Reduce |
| Wells Fargo & Co history | 800 | $5.99K | 0.00% | Add |
| Fidelity Management & Research (FMR) history | 6 | $45 | 0.00% | Hold |
Q3 2025 — 25 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Wellington Management Group history | 2.46M | $22.86M | 0.00% | Add |
| BlackRock Inc history | 945.26K | $8.79M | 0.00% | Add |
| Citadel Advisors history | 919.37K | $8.55M | 0.00% | Reduce |
| First Eagle Investment Management history | 545.00K | $5.07M | 0.01% | Add |
| Millennium Management history | 510.92K | $4.75M | 0.00% | Add |
| Royce & Associates history | 494.33K | $4.60M | 0.05% | New |
| Renaissance Technologies history | 363.97K | $3.38M | 0.00% | Add |
| UBS Group AG history | 312.99K | $2.91M | 0.00% | Add |
| Morgan Stanley history | 299.53K | $2.79M | 0.00% | Reduce |
| Marshall Wace history | 233.21K | $2.17M | 0.00% | Add |
| ARK Invest history | 230.05K | $2.14M | 0.01% | Reduce |
| Point72 Asset Management history | 88.76K | $825.44K | 0.00% | Reduce |
| Northern Trust Corp history | 79.25K | $737.02K | 0.00% | Reduce |
| Goldman Sachs Group history | 57.50K | $534.79K | 0.00% | Reduce |
| Bank of America Corp history | 56.21K | $522.78K | 0.00% | Add |
| Legal & General Investment Management America history | 43.37K | $403.38K | 0.00% | Add |
| Vanguard Group history | 35.29K | $328.21K | 0.00% | Hold |
| D. E. Shaw & Co history | 34.60K | $321.80K | 0.00% | Reduce |
| JPMorgan Chase & Co history | 21.52K | $200.18K | 0.00% | Reduce |
| Lazard Asset Management history | 19.76K | $183.78K | 0.00% | Add |
| Geode Capital Management history | 16.73K | $155.14K | 0.00% | Hold |
| Deutsche Bank AG history | 5.67K | $52.70K | 0.00% | Hold |
| Citigroup Inc history | 2.31K | $21.45K | 0.00% | Reduce |
| Wells Fargo & Co history | 534 | $4.97K | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 6 | $56 | 0.00% | Hold |
Q2 2025 — 36 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Citadel Advisors history | 1.36M | $10.63M | 0.00% | Add |
| Citadel Advisors history | 1.36M | $10.63M | 0.00% | Add |
| Wellington Management Group history | 932.58K | $7.31M | 0.00% | Add |
| Morgan Stanley history | 913.26K | $7.16M | 0.00% | Add |
| Morgan Stanley history | 913.26K | $7.16M | 0.00% | Add |
| BlackRock Inc history | 849.45K | $6.66M | 0.00% | Add |
| BlackRock Inc history | 849.45K | $6.66M | 0.00% | Add |
| Renaissance Technologies history | 355.57K | $2.79M | 0.00% | Add |
| Renaissance Technologies history | 355.57K | $2.79M | 0.00% | Add |
| Millennium Management history | 308.38K | $2.42M | 0.00% | Add |
| ARK Invest history | 242.37K | $1.90M | 0.01% | Add |
| ARK Invest history | 242.37K | $1.90M | 0.01% | Add |
| Marshall Wace history | 170.94K | $1.34M | 0.00% | Reduce |
| First Eagle Investment Management history | 169.50K | $1.33M | 0.00% | New |
| JPMorgan Chase & Co history | 132.22K | $1.04M | 0.00% | Reduce |
| JPMorgan Chase & Co history | 132.22K | $1.04M | 0.00% | Reduce |
| Point72 Asset Management history | 118.20K | $926.69K | 0.00% | Add |
| Point72 Asset Management history | 118.20K | $926.69K | 0.00% | Add |
| Goldman Sachs Group history | 98.72K | $773.93K | 0.00% | Add |
| Goldman Sachs Group history | 98.72K | $773.93K | 0.00% | Add |
| Northern Trust Corp history | 82.93K | $650.14K | 0.00% | Hold |
| Two Sigma Investments history | 81.11K | $635.91K | 0.00% | Reduce |
| Two Sigma Investments history | 81.11K | $635.91K | 0.00% | Reduce |
| D. E. Shaw & Co history | 39.11K | $306.65K | 0.00% | Add |
| UBS Group AG history | 39.04K | $306.11K | 0.00% | Reduce |
| Legal & General Investment Management America history | 38.14K | $299.01K | 0.00% | Hold |
| Vanguard Group history | 35.29K | $276.68K | 0.00% | Hold |
| Geode Capital Management history | 16.73K | $130.77K | 0.00% | Reduce |
| Bank of America Corp history | 11.46K | $89.85K | 0.00% | Reduce |
| Deutsche Bank AG history | 5.67K | $44.43K | 0.00% | Hold |
| Deutsche Bank AG history | 5.67K | $44.43K | 0.00% | Hold |
| Citigroup Inc history | 2.41K | $18.89K | 0.00% | Hold |
| Wells Fargo & Co history | 548 | $4.30K | 0.00% | Add |
| Lazard Asset Management history | 14.98K | $117 | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 6 | $47 | 0.00% | Hold |
| Fidelity Management & Research (FMR) history | 6 | $47 | 0.00% | Hold |
Q1 2025 — 35 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Wellington Management Group history | 889.36K | $7.36M | 0.00% | New |
| Citadel Advisors history | 837.80K | $6.93M | 0.00% | Add |
| Citadel Advisors history | 837.80K | $6.93M | 0.00% | Add |
| BlackRock Inc history | 831.07K | $6.87M | 0.00% | Add |
| BlackRock Inc history | 831.07K | $6.87M | 0.00% | Add |
| Marshall Wace history | 359.29K | $2.97M | 0.00% | Hold |
| Morgan Stanley history | 340.38K | $2.81M | 0.00% | Add |
| Morgan Stanley history | 340.38K | $2.81M | 0.00% | Add |
| Renaissance Technologies history | 278.27K | $2.30M | 0.00% | Reduce |
| Renaissance Technologies history | 278.27K | $2.30M | 0.00% | Reduce |
| JPMorgan Chase & Co history | 211.62K | $1.75M | 0.00% | Add |
| JPMorgan Chase & Co history | 211.62K | $1.75M | 0.00% | Add |
| Bank of America Corp history | 139.95K | $1.16M | 0.00% | Reduce |
| Two Sigma Investments history | 129.06K | $1.07M | 0.00% | Reduce |
| Two Sigma Investments history | 129.06K | $1.07M | 0.00% | Reduce |
| ARK Invest history | 120.75K | $998.61K | 0.01% | Reduce |
| ARK Invest history | 120.75K | $998.61K | 0.01% | Reduce |
| Northern Trust Corp history | 82.93K | $685.80K | 0.00% | Add |
| UBS Group AG history | 65.25K | $539.65K | 0.00% | Reduce |
| Point72 Asset Management history | 59.47K | $491.81K | 0.00% | Reduce |
| Point72 Asset Management history | 59.47K | $491.81K | 0.00% | Reduce |
| Legal & General Investment Management America history | 38.14K | $315.41K | 0.00% | Reduce |
| Vanguard Group history | 35.29K | $291.86K | 0.00% | Hold |
| Geode Capital Management history | 33.73K | $278.95K | 0.00% | Hold |
| Millennium Management history | 25.45K | $210.50K | 0.00% | Reduce |
| Goldman Sachs Group history | 20.90K | $172.84K | 0.00% | Reduce |
| Goldman Sachs Group history | 20.90K | $172.84K | 0.00% | Reduce |
| D. E. Shaw & Co history | 16.15K | $133.56K | 0.00% | Reduce |
| Deutsche Bank AG history | 5.67K | $46.87K | 0.00% | Hold |
| Deutsche Bank AG history | 5.67K | $46.87K | 0.00% | Hold |
| Citigroup Inc history | 2.42K | $20.01K | 0.00% | Add |
| Wells Fargo & Co history | 248 | $2.05K | 0.00% | Reduce |
| Lazard Asset Management history | 20.09K | $166 | 0.00% | Reduce |
| Fidelity Management & Research (FMR) history | 6 | $50 | 0.00% | Hold |
| Fidelity Management & Research (FMR) history | 6 | $50 | 0.00% | Hold |
New Positions (Q2 2026)
No fund opened a new position this quarter.
Fully Exited (vs previous quarter)
- Point72 Asset Management sold 100.20K sh · $261.53K
- Bank of America Corp sold 63.98K sh · $167.00K
- Goldman Sachs Group sold 42.64K sh · $111.30K
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q2 2026 | Q1 2026 | Q4 2025 | Q3 2025 | Q2 2025 | Q1 2025 | Q4 2024 | Q3 2024 | Q2 2024 | Q1 2024 | Q4 2023 | Q3 2023 | Q2 2023 | Q1 2023 | Q4 2022 | Q3 2022 | Q2 2022 | Q1 2022 | Q4 2021 | Q3 2021 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wellington Management Group | 3.62M | 2.97M | 3.00M | 2.46M | 932.58K | 889.36K | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| ARK Invest | 834.66K | 352.07K | 236.43K | 230.05K | 242.37K | 120.75K | 203.67K | 276.10K | 287.58K | 384.23K | 340.74K | 310.20K | 356.57K | 395.49K | 334.98K | 230.50K | 164.32K | 159.54K | 152.87K | 155.71K |
| Renaissance Technologies | 713.73K | 739.67K | 361.47K | 363.97K | 355.57K | 278.27K | 380.87K | 325.00K | 110.60K | 106.00K | 126.00K | 35.90K | 35.60K | 30.70K | 22.40K | 16.00K | 12.50K | — | — | — |
| UBS Group AG | 403.33K | 198.54K | 536.55K | 312.99K | 39.04K | 65.25K | 214.90K | 85.52K | 40.46K | 70.14K | 50.21K | 26.82K | 24.75K | 23.67K | 1.97K | — | 11.86K | 11.14K | 1.74K | 447 |
| Morgan Stanley | 268.20K | 591.86K | 256.66K | 299.53K | 913.26K | 340.38K | 319.02K | 175.96K | 122.51K | 88.33K | 90.54K | 85.80K | 82.47K | 68.38K | 15.32K | 13.21K | 9.78K | 15.00K | 11.20K | 10.60K |
| D. E. Shaw & Co | 159.94K | 58.55K | 28.38K | 34.60K | 39.11K | 16.15K | 292.58K | 189.04K | 100.68K | 91.39K | 46.20K | 10.20K | 13.20K | — | — | — | 18.43K | — | — | — |
| BlackRock Inc | 133.53K | 127.50K | 976.51K | 945.26K | 849.45K | 831.07K | 784.94K | 429.89K | — | — | — | — | — | — | — | — | — | — | — | — |
| Two Sigma Investments | 129.85K | 79.08K | — | — | 81.11K | 129.06K | 255.37K | 171.24K | 110.84K | 132.50K | 50.74K | — | — | — | — | — | — | — | — | — |
| Marshall Wace | 60.98K | 638.19K | 292.48K | 233.21K | 170.94K | 359.29K | 358.74K | 292.22K | 80.42K | 127.08K | 47.52K | 39.01K | 74.43K | 69.84K | 23.17K | 113.13K | 74.84K | 140.52K | 144.25K | 49.02K |
| Lazard Asset Management | 23.57K | 11.23K | 13.74K | 19.76K | 14.98K | 20.09K | 76.42K | 62.13K | — | — | 1.20K | 1.20K | 14.39K | 6.73K | 7.45K | — | — | — | — | — |
| Millennium Management | 18.20K | 825.76K | 357.81K | 510.92K | 308.38K | 25.45K | 108.33K | 542.28K | 261.51K | 333.24K | 134.09K | 25.84K | 67.44K | 39.79K | — | 398.11K | 864.19K | 937.42K | 613.13K | 375.35K |
| Citadel Advisors | 14.40K | 600.11K | 486.01K | 919.37K | 1.36M | 837.80K | 412.92K | 1.69M | 109.81K | 21.30K | 94.29K | — | 22.84K | 36.38K | 46.70K | 116.40K | 95.68K | 170.90K | 144.86K | 38.54K |
| Wells Fargo & Co | 9.20K | 8.20K | 800 | 534 | 548 | 248 | 258 | 258 | 258 | 819 | 819 | 3.14K | 3.14K | 3.14K | 3.14K | 3.14K | 3.14K | 72.93K | 68.90K | — |
| Citigroup Inc | 7.51K | 110.17K | 1.33K | 2.31K | 2.41K | 2.42K | 2.38K | 1.22K | 1.36K | 1.27K | 2.35K | 3.02K | 3.48K | 3.75K | 4.12K | 20.24K | 5.23K | 6.88K | 8.71K | 9.80K |
| Fidelity Management & Research (FMR) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 9 | 6 | 6 | 6 | 6 | 73 | 208 | 432.97K | 1.91M |
| Point72 Asset Management | — | 100.20K | 89.15K | 88.76K | 118.20K | 59.47K | 94.48K | — | — | — | — | — | — | — | — | — | — | — | — | — |
| JPMorgan Chase & Co | — | — | 20.25K | 21.52K | 132.22K | 211.62K | 187.64K | 171.54K | 69.35K | 21.66K | 1.87K | 1.87K | 300 | 686 | 300 | 34.67K | 27.94K | 300 | 7.62K | 300 |
| Goldman Sachs Group | — | 42.64K | 57.83K | 57.50K | 98.72K | 20.90K | 77.13K | 119.15K | 17.50K | — | — | — | 14.91K | 33.54K | — | 11.00K | 13.27K | — | — | — |
| Deutsche Bank AG | — | — | 5.67K | 5.67K | 5.67K | 5.67K | 5.67K | 5.67K | 5.67K | 5.67K | 5.67K | — | — | — | — | — | — | — | — | — |
| Bank of America Corp | — | 63.98K | 11.12K | 56.21K | 11.46K | 139.95K | 276.94K | 113.02K | 50.93K | 54.49K | 3.73K | 1.82K | 3.41K | 1.33K | 1.33K | 23.87K | 21.66K | 36.82K | 26.32K | — |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details