Ross Stores, Inc.
MX ˙ BMV ˙ US7782961038
SecurityMX:ROST / Ross Stores, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership661,951 shares
Latest Disclosed Value $ 143,398,308
Rhumbline Advisers reports 3.47% increase in ownership of ROST / Ross Stores, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 661,951 shares of Ross Stores, Inc. (MX:ROST) valued at $143,398,308 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 639,750 shares of Ross Stores, Inc.. This represents a change in shares of 3.47% 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 ROSS STORES INC COM COM 778296103 661,951 22,201 3.47 143,398 24.43 0.1227
2026-02-13 2025-12-31 13F ROSS STORES INC COM COM 778296103 639,750 -13,640 -2.09 115,244 15.74 0.0932
2025-11-06 2025-09-30 13F ROSS STORES INC COM COM 778296103 653,390 1,434 0.22 99,570 19.71 0.0800
2025-08-12 2025-06-30 13F ROSS STORES INC COM COM 778296103 651,956 -12,665 -1.91 83,176 -2.07 0.0712
2025-05-29 2025-03-31 13F/A-1 ROSS STORES INC COM COM 778296103 664,621 17,933 2.77 84,932 -13.18 0.0794
2025-04-08 2025-03-31 13F ROSS STORES INC COM COM 778296103 664,621 17,933 84,932 0.0794
2025-05-29 2024-12-31 13F/A-1 ROSS STORES INC COM COM 778296103 646,688 -12,021 -1.82 97,824 -1.33 0.0875
2025-01-30 2024-12-31 13F ROSS STORES INC COM COM 778296103 646,688 -12,021 97,824 0.0875
2024-11-12 2024-09-30 13F ROSS STORES INC COM COM 778296103 658,709 -21,629 -3.18 99,142 0.28 0.0894
2024-08-01 2024-06-30 13F ROSS STORES INC COM COM 778296103 680,338 -62,676 -8.44 98,867 -9.33 0.0929
2024-05-09 2024-03-31 13F ROSS STORES INC COM COM 778296103 743,014 -4,676 -0.63 109,045 5.39 0.1047
2024-02-08 2023-12-31 13F ROSS STORES INC COM COM 778296103 747,690 24,764 3.43 103,473 26.72 0.1085
2023-11-09 2023-09-30 13F ROSS STORES INC COM COM 778296103 722,926 -3,310 -0.46 81,654 0.27 0.0948
2023-08-08 2023-06-30 13F ROSS STORES INC COM COM 778296103 726,236 31,614 4.55 81,433 111,450.68 0.0912
2023-05-11 2023-03-31 13F ROSS STORES INC COM COM 778296103 694,622 16,307 2.40 74 -99.91 0.0910
2023-02-14 2022-12-31 13F ROSS STORES INC COM COM 778296103 678,315 20,737 3.15 78,732 42.08 0.1058
2022-11-10 2022-09-30 13F ROSS STORES INC COM COM 778296103 657,578 17,641 2.76 55,414 23.30 0.0825
2022-08-11 2022-06-30 13F ROSS STORES INC COM COM 778296103 639,937 24,340 3.95 44,943 -19.29 0.0656
2022-05-12 2022-03-31 13F ROSS STORES INC COM COM 778296103 615,597 8,645 1.42 55,687 -19.72 0.0717
2022-02-10 2021-12-31 13F ROSS STORES INC COM COM 778296103 606,952 12,452 2.09 69,362 7.19 0.0850
2021-11-12 2021-09-30 13F ROSS STORES INC COM COM 778296103 594,500 -11,477 -1.89 64,711 -13.88 0.0876
2021-08-05 2021-06-30 13F ROSS STORES INC COM COM 778296103 605,977 -30,533 -4.80 75,141 -1.55 0.0986
2021-05-06 2021-03-31 13F ROSS STORES INC COM COM 778296103 636,510 -95,359 -13.03 76,324 -15.08 0.1037
2021-02-10 2020-12-31 13F ROSS STORES INC COM COM 778296103 731,869 -65,120 -8.17 89,881 20.85 0.1241
2020-11-12 2020-09-30 13F ROSS STORES INC COM COM 778296103 796,989 6,956 0.88 74,375 10.44 0.1165
2020-08-13 2020-06-30 13F ROSS STORES INC COM COM 778296103 790,033 -17,176 -2.13 67,342 -4.08 0.1125
2020-05-06 2020-03-31 13F ROSS STORES INC COM COM 778296103 807,209 10,794 1.36 70,203 -24.28 0.1471
2020-02-05 2019-12-31 13F ROSS STORES INC COM COM 778296103 796,415 -1,721 -0.22 92,719 5.75 0.1551
2019-10-23 2019-09-30 13F ROSS STORES INC COM COM 778296103 798,136 11,376 1.45 87,675 12.43 0.1602
2019-08-14 2019-06-30 13F ROSS STORES INC COM COM 778296103 786,760 44,564 6.00 77,984 12.86 0.1464
2019-05-01 2019-03-31 13F ROSS STORES INC COM COM 778296103 742,196 -23,201 -3.03 69,098 8.51 0.1338
2019-01-31 2018-12-31 13F ROSS STORES INC COM COM 778296103 765,397 -41,557 -5.15 63,681 -20.37 0.1386
2018-11-07 2018-09-30 13F ROSS STORES INC COM COM 778296103 806,954 -17,742 -2.15 79,969 14.42 0.1544
2018-08-06 2018-06-30 13F ROSS STORES INC COM COM 778296103 824,696 22,709 2.83 69,893 11.76 0.1410
2018-05-02 2018-03-31 13F ROSS STORES INC COM COM 778296103 801,987 -49,076 -5.77 62,539 -8.43 0.1306
2018-02-09 2017-12-31 13F ROSS STORES INC COM COM 778296103 851,063 -20,042 -2.30 68,298 21.43 0.1387
2017-11-06 2017-09-30 13F ROSS STORES INC COM COM 778296103 871,105 13,164 1.53 56,247 13.56 0.1223
2017-08-02 2017-06-30 13F ROSS STORES INC COM COM 778296103 857,941 -2,479 -0.29 49,529 -12.61 0.1131
2017-05-02 2017-03-31 13F ROSS STORES INC COM COM 778296103 860,420 29,171 3.51 56,676 3.94 0.1324
2017-01-27 2016-12-31 13F ROSS STORES INC COM COM 778296103 831,249 40,211 5.08 54,530 7.21 0.1382
2016-11-08 2016-09-30 13F ROSS STORES INC COM COM 778296103 791,038 23,943 3.12 50,864 16.96 0.1402
2016-08-11 2016-06-30 13F ROSS STORES INC COM COM 778296103 767,095 20,038 2.68 43,487 0.54 0.1289
2016-05-02 2016-03-31 13F ROSS STORES INC U COM 778296103 747,057 -14,335 -1.88 43,255 5.57 0.1342
2016-02-03 2015-12-31 13F ROSS STORES INC U COM 778296103 761,392 5,021 0.66 40,971 11.76 0.1318
2015-11-04 2015-09-30 13F ROSS STORES INC U COM 778296103 756,371 -805 -0.11 36,661 -0.39 0.1247
2015-08-04 2015-06-30 13F ROSS STORES INC U COM 778296103 757,176 409,760 117.95 36,806 0.55 0.1173
2015-05-12 2015-03-31 13F ROSS STORES INC U COM 778296103 347,416 8,892 2.63 36,604 14.71 0.1056
2015-02-06 2014-12-31 13F ROSS STORES INC U COM 778296103 338,524 -7,412 -2.14 31,909 22.04 0.0927
2014-11-12 2014-09-30 13F ROSS STORES INC U COM 778296103 345,936 -77,217 -18.25 26,146 -6.56 0.0785
2014-08-06 2014-06-30 13F ROSS STORES INC U COM 778296103 423,153 -15,778 -3.59 27,983 -10.90 0.0821
2014-05-06 2014-03-31 13F ROSS STORES INC U COM 778296103 438,931 3,708 0.85 31,406 -3.70 0.0932
2014-02-03 2013-12-31 13F ROSS STORES INC U COM 778296103 435,223 -25,799 -5.60 32,611 -2.83 0.0962
2013-11-05 2013-09-30 13F ROSS STORES INC U COM 778296103 461,022 8,400 1.86 33,562 14.41 0.1040
2013-08-07 2013-06-30 13F ROSS STORES INC U COM 778296103 452,622 452,622 29,334 0.0943
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.