Similarweb Ltd.
DE ˙ DB ˙ IL0011751653
3,67 € ↓ -0,22 (-5,56%)
2026-06-03
AKTIENPREIS
SecurityDE:63X / Similarweb Ltd.
InstitutionD. E. Shaw & Co., Inc.
ManagerDE Shaw
Latest Disclosed Ownership58,552 shares
Latest Disclosed Value $ 152,821
D. E. Shaw & Co., Inc. reports 106.34% increase in ownership of 63X / Similarweb Ltd.

On May 15, 2026 - D. E. Shaw & Co., Inc. filed a 13F-HR form disclosing ownership of 58,552 shares of Similarweb Ltd. (DE:63X) valued at $127,058 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 28,376 shares of Similarweb Ltd.. This represents a change in shares of 106.34% during the quarter. The current value of the position is $214,769 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F SIMILARWEB SHS M84137104 58,552 30,176 106.34 153 -28.30 0.0001
2026-02-17 2025-12-31 13F SIMILARWEB SHS M84137104 28,376 -6,226 -17.99 213 -33.96 0.0001
2025-11-14 2025-09-30 13F SIMILARWEB SHS M84137104 34,602 -4,511 -11.53 322 4.90 0.0002
2025-08-14 2025-06-30 13F SIMILARWEB SHS M84137104 39,113 22,963 142.19 307 130.08 0.0002
2025-05-15 2025-03-31 13F SIMILARWEB SHS M84137104 16,150 -276,434 -94.48 134 -96.79 0.0001
2025-02-14 2024-12-31 13F SIMILARWEB SHS M84137104 292,584 103,544 54.77 4,146 148.06 0.0030
2024-11-14 2024-09-30 13F SIMILARWEB SHS M84137104 189,040 88,358 87.76 1,671 113.68 0.0014
2024-08-14 2024-06-30 13F SIMILARWEB SHS M84137104 100,682 9,293 10.17 782 -4.87 0.0007
2024-05-15 2024-03-31 13F SIMILARWEB SHS M84137104 91,389 45,187 97.80 823 234.15 0.0007
2024-02-14 2023-12-31 13F SIMILARWEB SHS M84137104 46,202 35,999 352.83 246 272.73 0.0002
2023-11-14 2023-09-30 13F SIMILARWEB SHS M84137104 10,203 -2,997 -22.70 66 -23.26 0.0001
2023-08-14 2023-06-30 13F SIMILARWEB SHS M84137104 13,200 13,200 87 0.0001
2022-11-14 2022-09-30 13F SIMILARWEB SHS M84137104 0 -18,435 -100.00 0 -100.00
2022-08-15 2022-06-30 13F SIMILARWEB SHS M84137104 18,435 18,435 152 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.