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Jim Simons's Similarweb Ltd. (SMWB) position

Yes: as of Q1 2026, Jim Simons holds 740K shares of SMWB worth an amount we cannot price (0.0% of the disclosed portfolio). Last quarter the position was increased by 104.6%. First disclosed Q2 2022.
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Current value
an amount we cannot price
Shares held
740K
% of portfolio
0.0%
Quarter-end price
No quarter-end price available

Average buy price is hidden here because at least one covered purchase quarter has no usable local mean price.

SMWB price vs Simons's position

Dates
← Earlier —13 purchases, 3 sells66.577.5
Average closing price · filing quarter
Price range · filing quarter

Every quarterly change

Every quarterly change
Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Added· Q1 2026 +378K
Quarter Q1 2026 Δ Own +104.6% Shares held 740K Filing date May 14, 2026
Q1 2026 Added· Q1 2026 +378K +104.6% 740K May 14, 2026
Reduced· Q4 2025 −2K
Quarter Q4 2025 Δ Own −0.7% Shares held 361K Filing date Feb 12, 2026
Q4 2025 Reduced· Q4 2025 −2K −0.7% 361K Feb 12, 2026
Added· Q3 2025 +8K
Quarter Q3 2025 Δ Own +2.4% Shares held 364K Filing date Nov 13, 2025
Q3 2025 Added· Q3 2025 +8K +2.4% 364K Nov 13, 2025
Added· Q2 2025 +77K
Quarter Q2 2025 Δ Own +27.8% Shares held 356K Filing date Aug 13, 2025
Q2 2025 Added· Q2 2025 +77K +27.8% 356K Aug 13, 2025
Reduced· Q1 2025 −103K
Quarter Q1 2025 Δ Own −26.9% Shares held 278K Filing date May 14, 2025
Q1 2025 Reduced· Q1 2025 −103K −26.9% 278K May 14, 2025
Added· Q4 2024 +56K
Quarter Q4 2024 Δ Own +17.2% Shares held 381K Filing date Feb 13, 2025
Q4 2024 Added· Q4 2024 +56K +17.2% 381K Feb 13, 2025
Added· Q3 2024 +214K
Quarter Q3 2024 Δ Own +193.9% Shares held 325K Filing date Nov 13, 2024
Q3 2024 Added· Q3 2024 +214K +193.9% 325K Nov 13, 2024
Added· Q2 2024 +5K
Quarter Q2 2024 Δ Own +4.3% Shares held 111K Filing date Aug 9, 2024
Q2 2024 Added· Q2 2024 +5K +4.3% 111K Aug 9, 2024
Reduced· Q1 2024 −20K
Quarter Q1 2024 Δ Own −15.9% Shares held 106K Filing date May 13, 2024
Q1 2024 Reduced· Q1 2024 −20K −15.9% 106K May 13, 2024
Added· Q4 2023 +90K
Quarter Q4 2023 Δ Own +251.0% Shares held 126K Filing date Feb 13, 2024
Q4 2023 Added· Q4 2023 +90K +251.0% 126K Feb 13, 2024
Added· Q3 2023 +300
Quarter Q3 2023 Δ Own +0.8% Shares held 36K Filing date Nov 14, 2023
Q3 2023 Added· Q3 2023 +300 +0.8% 36K Nov 14, 2023
Added· Q2 2023 +5K
Quarter Q2 2023 Δ Own +16.0% Shares held 36K Filing date Aug 11, 2023
Q2 2023 Added· Q2 2023 +5K +16.0% 36K Aug 11, 2023
Added· Q1 2023 +8K
Quarter Q1 2023 Δ Own +37.1% Shares held 31K Filing date May 12, 2023
Q1 2023 Added· Q1 2023 +8K +37.1% 31K May 12, 2023
Added· Q4 2022 +6K
Quarter Q4 2022 Δ Own +40.0% Shares held 22K Filing date Feb 13, 2023
Q4 2022 Added· Q4 2022 +6K +40.0% 22K Feb 13, 2023
Added· Q3 2022 +4K
Quarter Q3 2022 Δ Own +28.0% Shares held 16K Filing date Nov 14, 2022
Q3 2022 Added· Q3 2022 +4K +28.0% 16K Nov 14, 2022
Data through Q1 2026 · filed May 14, 2026
15 of 16

More Simons positions

Common questions

Does Jim Simons own SMWB?

Yes. As of Q1 2026, Jim Simons disclosed 740K shares of SMWB, worth an amount we cannot price. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Jim Simons buy SMWB?

Jim Simons first disclosed a SMWB position in Q2 2022; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Jim Simons sell SMWB?

The quarter-by-quarter table above shows each sale and reduction Jim Simons disclosed in SMWB. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of SMWB does Jim Simons own?

Jim Simons disclosed 740K shares of SMWB as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Jim Simons pay for SMWB?

Jim Simons began building the SMWB position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.