Wayfair Inc.
MX ˙ BMV ˙ US94419L1017
SecurityMX:W / Wayfair Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership89,559 shares
Latest Disclosed Value $ 6,735,688
Rhumbline Advisers reports 5.78% decrease in ownership of W / Wayfair Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 89,559 shares of Wayfair Inc. (MX:W) valued at $6,735,688 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 95,058 shares of Wayfair Inc.. This represents a change in shares of -5.78% 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)
2026-05-12 2026-03-31 13F WAYFAIR INC CL A COM 94419L101 89,559 -5,499 -5.78 6,736 -29.43 0.0058
2026-02-13 2025-12-31 13F WAYFAIR INC CL A COM 94419L101 95,058 3,596 3.93 9,545 16.82 0.0077
2025-11-06 2025-09-30 13F WAYFAIR INC CL A COM 94419L101 91,462 -1,571 -1.69 8,170 71.75 0.0066
2025-08-12 2025-06-30 13F WAYFAIR INC CL A COM 94419L101 93,033 1,761 1.93 4,758 62.74 0.0041
2025-05-29 2025-03-31 13F/A-1 WAYFAIR INC CL A COM 94419L101 91,272 3,725 4.25 2,923 -24.66 0.0027
2025-04-08 2025-03-31 13F WAYFAIR INC CL A COM 94419L101 91,272 3,725 2,923 0.0027
2025-05-29 2024-12-31 13F/A-1 WAYFAIR INC CL A COM 94419L101 87,547 -498 -0.57 3,880 -21.55 0.0035
2025-01-30 2024-12-31 13F WAYFAIR INC CL A COM 94419L101 87,547 -498 3,880 0.0035
2024-11-12 2024-09-30 13F WAYFAIR INC CL A COM 94419L101 88,045 3,253 3.84 4,946 10.62 0.0045
2024-08-01 2024-06-30 13F WAYFAIR INC CL A COM 94419L101 84,792 -1,801 -2.08 4,471 -23.92 0.0042
2024-05-09 2024-03-31 13F WAYFAIR INC CL A COM 94419L101 86,593 -9,330 -9.73 5,878 -0.69 0.0056
2024-02-08 2023-12-31 13F WAYFAIR INC CL A COM 94419L101 95,923 52 0.05 5,918 1.93 0.0062
2023-11-09 2023-09-30 13F WAYFAIR INC CL A COM 94419L101 95,871 -1,015 -1.05 5,807 -7.81 0.0067
2023-08-08 2023-06-30 13F WAYFAIR INC CL A COM 94419L101 96,886 10,545 12.21 6,299 314,800.00 0.0071
2023-05-11 2023-03-31 13F WAYFAIR INC CL A COM 94419L101 86,341 4,699 5.76 3 -99.93 0.0037
2023-02-14 2022-12-31 13F WAYFAIR INC CL A COM 94419L101 81,642 3,290 4.20 2,685 5.29 0.0036
2022-11-10 2022-09-30 13F WAYFAIR INC CL A COM 94419L101 78,352 5,370 7.36 2,550 -19.79 0.0038
2022-08-11 2022-06-30 13F WAYFAIR INC CL A COM 94419L101 72,982 8,211 12.68 3,179 -55.69 0.0046
2022-05-12 2022-03-31 13F WAYFAIR INC CL A COM 94419L101 64,771 -1,735 -2.61 7,175 -43.21 0.0092
2022-02-10 2021-12-31 13F WAYFAIR INC CL A COM 94419L101 66,506 2,323 3.62 12,634 -22.96 0.0155
2021-11-12 2021-09-30 13F WAYFAIR INC CL A COM 94419L101 64,183 -4,205 -6.15 16,399 -24.05 0.0222
2021-08-05 2021-06-30 13F WAYFAIR INC CL A COM 94419L101 68,388 -2,839 -3.99 21,591 -3.69 0.0283
2021-05-06 2021-03-31 13F WAYFAIR INC CL A COM 94419L101 71,227 -3,840 -5.12 22,419 32.26 0.0305
2021-02-10 2020-12-31 13F WAYFAIR INC CL A COM 94419L101 75,067 2,528 3.49 16,951 -19.70 0.0234
2020-11-12 2020-09-30 13F WAYFAIR INC CL A COM 94419L101 72,539 -2,679 -3.56 21,110 42.02 0.0331
2020-08-13 2020-06-30 13F WAYFAIR INC CL A COM 94419L101 75,218 11,689 18.40 14,864 337.82 0.0248
2020-05-06 2020-03-31 13F WAYFAIR INC CL A COM 94419L101 63,529 1,287 2.07 3,395 -39.64 0.0071
2020-02-05 2019-12-31 13F WAYFAIR INC CL A COM 94419L101 62,242 2,442 4.08 5,625 -16.11 0.0094
2019-10-23 2019-09-30 13F WAYFAIR INC CL A COM 94419L101 59,800 -407 -0.68 6,705 -23.72 0.0123
2019-08-14 2019-06-30 13F WAYFAIR INC CL A COM 94419L101 60,207 3,968 7.06 8,790 5.28 0.0165
2019-05-01 2019-03-31 13F WAYFAIR INC CL A COM 94419L101 56,239 70 0.12 8,349 65.00 0.0162
2019-01-31 2018-12-31 13F WAYFAIR INC CL A COM 94419L101 56,169 -1,891 -3.26 5,060 -40.98 0.0110
2018-11-07 2018-09-30 13F WAYFAIR INC CL A COM 94419L101 58,060 -568 -0.97 8,574 23.14 0.0166
2018-08-06 2018-06-30 13F WAYFAIR INC CL A COM 94419L101 58,628 18,479 46.03 6,963 156.84 0.0140
2018-05-02 2018-03-31 13F WAYFAIR INC CL A COM 94419L101 40,149 -727 -1.78 2,711 -17.37 0.0057
2018-02-09 2017-12-31 13F WAYFAIR INC CL A COM 94419L101 40,876 -531 -1.28 3,281 17.56 0.0067
2017-11-06 2017-09-30 13F WAYFAIR INC CL A COM 94419L101 41,407 -1,595 -3.71 2,791 -15.58 0.0061
2017-08-02 2017-06-30 13F WAYFAIR INC CL A COM 94419L101 43,002 7,112 19.82 3,306 127.53 0.0075
2017-05-02 2017-03-31 13F WAYFAIR INC CL A COM 94419L101 35,890 1,399 4.06 1,453 20.18 0.0034
2017-01-27 2016-12-31 13F WAYFAIR INC CL A COM 94419L101 34,491 2,724 8.57 1,209 -3.36 0.0031
2016-11-08 2016-09-30 13F WAYFAIR INC CL A COM 94419L101 31,767 3,272 11.48 1,251 12.60 0.0034
2016-08-11 2016-06-30 13F WAYFAIR INC CL A COM 94419L101 28,495 9,497 49.99 1,111 35.32 0.0033
2016-05-02 2016-03-31 13F WAYFAIR COM 94419L101 18,998 125 0.66 821 -8.68 0.0025
2016-02-03 2015-12-31 13F WAYFAIR COM 94419L101 18,873 1,595 9.23 899 48.35 0.0029
2015-11-04 2015-09-30 13F WAYFAIR COM 94419L101 17,278 738 4.46 606 -2.73 0.0021
2015-08-04 2015-06-30 13F WAYFAIR COM 94419L101 16,540 7,175 76.62 623 106.98 0.0020
2015-05-12 2015-03-31 13F WAYFAIR COM 94419L101 9,365 9,365 301 0.0009
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.