Ross Stores, Inc.
MX ˙ BMV ˙ US7782961038
SecurityMX:ROST / Ross Stores, Inc.
Institution1832 Asset Management L.P.
Latest Disclosed Ownership670,926 shares
Latest Disclosed Value $ 145,342,699
1832 Asset Management L.P. reports 15.58% increase in ownership of ROST / Ross Stores, Inc.

On May 14, 2026 - 1832 Asset Management L.P. filed a 13F-HR form disclosing ownership of 670,926 shares of Ross Stores, Inc. (MX:ROST) valued at $145,342,699 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 580,473 shares of Ross Stores, Inc.. This represents a change in shares of 15.58% 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)
2026-05-14 2026-03-31 13F ROSS STORES COM 778296103 670,926 90,453 15.58 145,343 39.00 0.1336
2026-02-13 2025-12-31 13F ROSS STORES COM 778296103 580,473 517,799 826.18 104,566 994.93 0.0796
2025-11-14 2025-09-30 13F ROSS STORES COM 778296103 62,674 7,280 13.14 9,551 35.14 0.0075
2025-08-13 2025-06-30 13F ROSS STORES COM 778296103 55,394 -1,047,661 -94.98 7,067 -94.99 0.0055
2025-05-14 2025-03-31 13F ROSS STORES COM 778296103 1,103,055 -795,933 -41.91 140,959 -50.93 0.1281
2025-02-14 2024-12-31 13F ROSS STORES COM 778296103 1,898,988 234,812 14.11 287,260 14.69 0.2442
2024-11-13 2024-09-30 13F ROSS STORES COM 778296103 1,664,176 -343,352 -17.10 250,475 -14.14 0.1906
2024-08-13 2024-06-30 13F ROSS STORES COM 778296103 2,007,528 390,518 24.15 291,734 22.93 0.2370
2024-05-14 2024-03-31 13F ROSS STORES COM 778296103 1,617,010 -119,466 -6.88 237,312 -1.25 0.1405
2024-02-13 2023-12-31 13F ROSS STORES COM 778296103 1,736,476 -99,400 -5.41 240,311 15.89 0.3461
2023-11-13 2023-09-30 13F ROSS STORES COM 778296103 1,835,876 24,640 1.36 207,362 2.10 0.2941
2023-08-14 2023-06-30 13F ROSS STORES COM 778296103 1,811,236 -5,519 -0.30 203,094 5.33 0.3949
2023-05-12 2023-03-31 13F ROSS STORES COM 778296103 1,816,755 -90,521 -4.75 192,812 -12.90 0.3966
2023-02-15 2022-12-31 13F ROSS STORES COM 778296103 1,907,276 -225,334 -10.57 221,378 23.18 0.4551
2022-11-14 2022-09-30 13F ROSS STORES COM 778296103 2,132,610 -15,772 -0.73 179,715 19.11 0.3828
2022-08-15 2022-06-30 13F ROSS STORES COM 778296103 2,148,382 726,197 51.06 150,881 18.91 0.3040
2022-05-16 2022-03-31 13F ROSS STORES COM 778296103 1,422,185 308,621 27.71 126,882 -1.23 0.2071
2022-02-15 2021-12-31 13F ROSS STORES COM 778296103 1,113,564 203,997 22.43 128,467 22.43 0.2273
2021-11-15 2021-09-30 13F ROSS STORES COM 778296103 909,567 2,720 0.30 104,927 -5.25 0.1966
2021-08-20 2021-06-30 13F/A-1 ROSS STORES COM 778296103 906,847 6,969 0.77 110,738 1.84 0.2141
2021-08-16 2021-06-30 13F ROSS STORES COM 778296103 906,847 6,969 110,738 0.2145
2021-05-17 2021-03-31 13F ROSS STORES COM 778296103 899,878 36,351 4.21 108,734 2.45 0.2350
2021-02-16 2020-12-31 13F ROSS STORES COM 778296103 863,527 78,577 10.01 106,137 47.22 0.2482
2020-11-16 2020-09-30 13F ROSS STORES COM 778296103 784,950 44 0.01 72,093 7.00 0.1882
2020-08-14 2020-06-30 13F ROSS STORES COM 778296103 784,906 -248,146 -24.02 67,378 -23.82 0.2022
2020-05-26 2020-03-31 13F/A-1 ROSS STORES COM 778296103 1,033,052 246,812 31.39 88,446 -3.91 0.3189
2020-05-14 2020-03-31 13F ROSS STORES COM 778296103 784,803 -1,437 67,230 508,328.4817
2020-02-14 2019-12-31 13F ROSS STORES COM 778296103 786,240 -76,831 -8.90 92,046 -2.15 0.2802
2019-11-14 2019-09-30 13F ROSS STORES COM 778296103 863,071 -393,444 -31.31 94,065 -25.49 0.2994
2019-08-14 2019-06-30 13F ROSS STORES COM 778296103 1,256,515 -3,484 -0.28 126,249 8.69 0.4083
2019-05-15 2019-03-31 13F ROSS STORES COM 778296103 1,259,999 5,617 0.45 116,153 11.28 0.3957
2019-02-14 2018-12-31 13F ROSS STORES COM 778296103 1,254,382 -384,179 -23.45 104,380 -35.77 0.4127
2018-11-14 2018-09-30 13F ROSS STORES COM 778296103 1,638,561 292,546 21.73 162,510 42.62 0.5300
2018-08-14 2018-06-30 13F ROSS STORES COM 778296103 1,346,015 90,723 7.23 113,949 15.94 0.3858
2018-05-15 2018-03-31 13F ROSS STORES COM 778296103 1,255,292 1,932 0.15 98,284 -2.01 0.3621
2018-02-14 2017-12-31 13F ROSS STORES COM 778296103 1,253,360 574,525 84.63 100,302 135.36 0.3259
2017-11-14 2017-09-30 13F ROSS STORES COM 778296103 678,835 678,835 42,616 0.1493
2017-05-15 2017-03-31 13F ROSS STORES COM 778296103 0 -2,570 -100.00 0 -100.00
2017-04-01 2016-12-31 13F/A-1 ROSS STORES COM 778296103 2,570 2,570 169 0.0005
2017-02-14 2016-12-31 13F ROSS STORES COM 778296103 2,570 169
2016-11-15 2016-09-30 13F ROSS STORES COM 778296103 0 -836 -100.00 0 -100.00
2016-08-12 2016-06-30 13F/A-1 ROSS STORES COM 778296103 836 836 0.00 48 0.0002
2016-08-12 2016-06-30 13F ROSS STORES COM 778296103 836 836 48 0.0001
2015-02-12 2014-12-31 13F ROSS STORES COM 778296103 0 -688,551 -100.00 0 -100.00
2014-11-12 2014-09-30 13F ROSS STORES COM 778296103 688,551 -562,492 -44.96 52,088 -37.08 0.1700
2014-08-13 2014-06-30 13F ROSS STORES COM 778296103 1,251,043 713,056 132.54 82,787 113.19 0.2608
2014-05-14 2014-03-31 13F ROSS STORES COM 778296103 537,987 -70,613 -11.60 38,832 -14.96 0.1335
2014-02-13 2013-12-31 13F ROSS STORES COM 778296103 608,600 -96,600 -13.70 45,663 -10.88 0.1756
2013-11-13 2013-09-30 13F ROSS STORES COM 778296103 705,200 -144,420 -17.00 51,237 -6.91 0.2272
2013-08-14 2013-06-30 13F ROSS STORES COM 778296103 849,620 849,620 55,042 0.2410
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.