Wayfair Inc.
MX ˙ BMV ˙ US94419L1017
SecurityMX:W / Wayfair Inc.
InstitutionWorldquant Millennium Advisors Llc
Latest Disclosed Ownership159,732 shares
Latest Disclosed Value $ 12,013,444
Worldquant Millennium Advisors Llc reports 234.81% increase in ownership of W / Wayfair Inc.

On May 15, 2026 - Worldquant Millennium Advisors Llc filed a 13F-HR form disclosing ownership of 159,732 shares of Wayfair Inc. (MX:W) valued at $12,013,444 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 47,708 shares of Wayfair Inc.. This represents a change in shares of 234.81% during the quarter.

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.

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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 WAYFAIR CL A 94419L101 159,732 112,024 234.81 12,013 150.79 0.0463
2026-02-17 2025-12-31 13F WAYFAIR CL A 94419L101 47,708 47,708 4,790 0.0186
2025-11-14 2025-09-30 13F WAYFAIR CL A 94419L101 0 -6,685 -100.00 0 -100.00
2025-08-14 2025-06-30 13F WAYFAIR CL A 94419L101 6,685 6,685 342 0.0017
2023-02-14 2022-12-31 13F WAYFAIR CL A 94419L101 0 -117,304 -100.00 0 -100.00
2022-11-14 2022-09-30 13F WAYFAIR CL A 94419L101 117,304 117,304 3,818 0.0928
2022-08-15 2022-06-30 13F WAYFAIR CL A 94419L101 0 -14,905 -100.00 0 -100.00
2022-05-16 2022-03-31 13F WAYFAIR CL A 94419L101 14,905 14,905 1,651 0.0402
2021-02-16 2020-12-31 13F WAYFAIR CL A 94419L101 0 -44,280 -100.00 0 -100.00
2020-11-16 2020-09-30 13F WAYFAIR CL A 94419L101 44,280 -5,182 -10.48 12,886 31.84 0.3053
2020-08-14 2020-06-30 13F WAYFAIR CL A 94419L101 49,462 49,462 9,774 0.2249
2019-11-14 2019-09-30 13F WAYFAIR CL A 94419L101 0 -7,304 -100.00 0 -100.00
2019-08-14 2019-06-30 13F WAYFAIR CL A 94419L101 7,304 7,304 1,066 0.0203
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.