Ross Stores, Inc.
MX ˙ BMV ˙ US7782961038
SecurityMX:ROST / Ross Stores, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership295,564 shares
Latest Disclosed Value $ 64,028,029
Trexquant Investment LP reports 1.00% increase in ownership of ROST / Ross Stores, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 295,564 shares of Ross Stores, Inc. (MX:ROST) valued at $64,028,029 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 292,647 shares of Ross Stores, Inc.. This represents a change in shares of 1.00% 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 ROSS STORES COM 778296103 295,564 2,917 1.00 64,028 21.46 0.4601
2026-02-17 2025-12-31 13F ROSS STORES COM 778296103 292,647 183,813 168.89 52,717 217.86 0.4700
2025-11-14 2025-09-30 13F ROSS STORES COM 778296103 108,834 -78,817 -42.00 16,585 -30.72 0.1707
2025-08-12 2025-06-30 13F ROSS STORES COM 778296103 187,651 158,019 533.27 23,941 532.33 0.2700
2025-05-14 2025-03-31 13F ROSS STORES COM 778296103 29,632 29,632 3,787 0.0441
2024-11-12 2024-09-30 13F ROSS STORES COM 778296103 0 -170,441 -100.00 0 -100.00
2024-08-13 2024-06-30 13F ROSS STORES COM 778296103 170,441 23,255 15.80 24,768 14.66 0.3779
2024-05-14 2024-03-31 13F ROSS STORES COM 778296103 147,186 -20,423 -12.18 21,601 -6.87 0.4306
2024-02-09 2023-12-31 13F ROSS STORES COM 778296103 167,609 60,949 57.14 23,195 92.54 0.5219
2023-11-13 2023-09-30 13F ROSS STORES COM 778296103 106,660 -74,230 -41.04 12,047 -40.61 0.3023
2023-08-11 2023-06-30 13F ROSS STORES COM 778296103 180,890 -17,718 -8.92 20,283 -3.77 0.5317
2023-05-15 2023-03-31 13F ROSS STORES COM 778296103 198,608 -7,819 -3.79 21,078 -12.02 0.5789
2023-02-13 2022-12-31 13F ROSS STORES COM 778296103 206,427 206,427 23,960 0.6794
2022-02-11 2021-12-31 13F ROSS STORES COM 778296103 0 -4,164 -100.00 0 -100.00
2021-11-12 2021-09-30 13F ROSS STORES COM 778296103 4,164 -48,160 -92.04 453 -93.02 0.0360
2021-08-12 2021-06-30 13F ROSS STORES COM 778296103 52,324 3,686 7.58 6,488 11.25 0.5475
2021-05-13 2021-03-31 13F ROSS STORES COM 778296103 48,638 34,919 254.53 5,832 246.11 0.5350
2021-02-11 2020-12-31 13F ROSS STORES COM 778296103 13,719 13,719 1,685 0.1785
2020-05-08 2020-03-31 13F ROSS STORES COM 778296103 0 -29,385 -100.00 0 -100.00
2020-02-12 2019-12-31 13F ROSS STORES COM 778296103 29,385 15,612 113.35 3,421 126.11 0.2024
2020-02-18 2019-09-30 13F/A-1 ROSS STORES COM 778296103 13,773 13,773 1,513 0.1307
2019-11-08 2019-09-30 13F ROSS STORES COM 778296103 13,773 13,773 1,513 130,673.9077
2018-11-09 2018-09-30 13F ROSS STORES COM 778296103 0 -33,056 -100.00 0 -100.00
2018-08-07 2018-06-30 13F ROSS STORES COM 778296103 33,056 33,056 2,801 0.1941
2017-11-09 2017-09-30 13F ROSS STORES COM 778296103 0 -14,700 -100.00 0 -100.00
2017-08-01 2017-06-30 13F ROSS STORES COM 778296103 14,700 -100 -0.68 849 -12.92 0.2324
2017-05-08 2017-03-31 13F ROSS STORES COM 778296103 14,800 14,800 975 0.1251
2016-08-10 2016-06-30 13F ROSS STORES COM 778296103 0 -13,500 -100.00 0 -100.00
2016-05-11 2016-03-31 13F ROSS STORES COM 778296103 13,500 -9,800 -42.06 782 -37.64 0.0916
2016-02-10 2015-12-31 13F ROSS STORES COM 778296103 23,300 -5,300 -18.53 1,254 -9.52 0.1104
2015-11-02 2015-09-30 13F ROSS STORES COM 778296103 28,600 4,500 18.67 1,386 18.36 0.1193
2015-08-12 2015-06-30 13F ROSS STORES COM 778296103 24,100 20,400 551.35 1,171 201.03 0.1315
2015-05-13 2015-03-31 13F ROSS STORES COM 778296103 3,700 3,700 389 0.0397
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.