Ross Stores, Inc.
MX ˙ BMV ˙ US7782961038
SecurityMX:ROST / Ross Stores, Inc.
InstitutionPanagora Asset Management Inc
Latest Disclosed Ownership322,818 shares
Latest Disclosed Value $ 69,932,063
Panagora Asset Management Inc reports 19.83% increase in ownership of ROST / Ross Stores, Inc.

On May 14, 2026 - Panagora Asset Management Inc filed a 13F-HR form disclosing ownership of 322,818 shares of Ross Stores, Inc. (MX:ROST) valued at $69,932,063 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 269,392 shares of Ross Stores, Inc.. This represents a change in shares of 19.83% 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 322,818 53,426 19.83 69,932 44.11 0.2620
2026-02-13 2025-12-31 13F ROSS STORES COM 778296103 269,392 231,458 610.16 48,528 739.58 0.1720
2025-11-13 2025-09-30 13F ROSS STORES COM 778296103 37,934 -194,381 -83.67 5,781 -80.50 0.0233
2025-08-13 2025-06-30 13F ROSS STORES COM 778296103 232,315 75,193 47.86 29,639 47.61 0.1336
2025-05-15 2025-03-31 13F ROSS STORES COM 778296103 157,122 -275,233 -63.66 20,079 -69.30 0.1003
2025-02-13 2024-12-31 13F ROSS STORES COM 778296103 432,355 156,243 56.59 65,402 57.38 0.3023
2024-11-13 2024-09-30 13F ROSS STORES COM 778296103 276,112 -1,086 -0.39 41,558 3.17 0.1986
2024-07-29 2024-06-30 13F ROSS STORES COM 778296103 277,198 235,232 560.53 40,282 554.14 0.2026
2024-05-07 2024-03-31 13F ROSS STORES COM 778296103 41,966 16,899 67.42 6,159 77.52 0.0321
2024-02-08 2023-12-31 13F ROSS STORES COM 778296103 25,067 336 1.36 3,469 24.20 0.0194
2023-10-31 2023-09-30 13F ROSS STORES COM 778296103 24,731 -84 -0.34 2,793 0.40 0.0173
2023-08-11 2023-06-30 13F ROSS STORES COM 778296103 24,815 88 0.36 2,783 6.02 0.0164
2023-05-12 2023-03-31 13F ROSS STORES COM 778296103 24,727 -8,638 -25.89 2,624 -32.23 0.0166
2023-02-13 2022-12-31 13F ROSS STORES COM 778296103 33,365 -3,287 -8.97 3,873 25.35 0.0254
2022-11-14 2022-09-30 13F ROSS STORES COM 778296103 36,652 0 0.00 3,089 20.01 0.0214
2022-08-15 2022-06-30 13F ROSS STORES COM 778296103 36,652 278 0.76 2,574 -21.76 0.0169
2022-05-12 2022-03-31 13F ROSS STORES COM 778296103 36,374 7,521 26.07 3,290 -0.21 0.0179
2022-02-10 2021-12-31 13F ROSS STORES COM 778296103 28,853 -4,878 -14.46 3,297 -10.21 0.0175
2021-11-10 2021-09-30 13F ROSS STORES COM 778296103 33,731 -54,622 -61.82 3,672 -66.48 0.0196
2021-08-11 2021-06-30 13F ROSS STORES COM 778296103 88,353 -10,481 -10.60 10,956 -7.55 0.0587
2021-05-12 2021-03-31 13F ROSS STORES COMMON 778296103 98,834 -9,652 -8.90 11,851 -11.05 0.0665
2021-02-10 2020-12-31 13F ROSS STORES COMMON 778296103 108,486 -1,838 -1.67 13,323 29.41 0.0788
2020-11-13 2020-09-30 13F ROSS STORES COMMON 778296103 110,324 12,602 12.90 10,295 23.59 0.0645
2020-08-12 2020-06-30 13F ROSS STORES COMMON 778296103 97,722 261 0.27 8,330 -1.72 0.0531
2020-05-14 2020-03-31 13F ROSS STORES COMMON 778296103 97,461 6,677 7.35 8,476 -19.80 0.0600
2020-02-12 2019-12-31 13F ROSS STORES COMMON 778296103 90,784 315 0.35 10,569 6.35 0.0480
2019-11-12 2019-09-30 13F ROSS STORES COMMON 778296103 90,469 -426,727 -82.51 9,938 -80.61 0.0458
2019-08-09 2019-06-30 13F ROSS STORES COMMON 778296103 517,196 981 0.19 51,264 6.67 0.2292
2019-05-15 2019-03-31 13F ROSS STORES COMMON 778296103 516,215 -243,923 -32.09 48,060 -24.01 0.2137
2019-02-14 2018-12-31 13F ROSS STORES COMMON 778296103 760,138 -81,039 -9.63 63,243 -24.13 0.2944
2018-11-13 2018-09-30 13F ROSS STORES COMMON 778296103 841,177 -825,277 -49.52 83,361 -40.98 0.3137
2018-08-14 2018-06-30 13F ROSS STORES COMMON 778296103 1,666,454 -3,528 -0.21 141,232 8.45 0.5600
2018-05-15 2018-03-31 13F ROSS STORES COMMON 778296103 1,669,982 970,563 138.77 130,225 132.01 0.5137
2018-02-14 2017-12-31 13F ROSS STORES COMMON 778296103 699,419 405,004 137.56 56,128 195.26 0.2106
2017-11-14 2017-09-30 13F ROSS STORES COMMON 778296103 294,415 -287,761 -49.43 19,010 -43.44 0.0753
2017-08-14 2017-06-30 13F ROSS STORES COMMON 778296103 582,176 49,325 9.26 33,609 -4.25 0.1353
2017-05-15 2017-03-31 13F ROSS STORES COMMON 778296103 532,851 164,508 44.66 35,099 45.26 0.1462
2017-02-14 2016-12-31 13F ROSS STORES COMMON 778296103 368,343 293,091 389.48 24,163 399.34 0.1107
2016-11-14 2016-09-30 13F ROSS STORES COMMON 778296103 75,252 1,213 1.64 4,839 15.30 0.0231
2016-08-15 2016-06-30 13F ROSS STORES COMMON 778296103 74,039 -12,052 -14.00 4,197 -15.81 0.0208
2016-05-16 2016-03-31 13F ROSS STORES COMMON 778296103 86,091 9,908 13.01 4,985 21.62 0.0247
2016-02-12 2015-12-31 13F ROSS STORES COMMON 778296103 76,183 2,761 3.76 4,099 15.17 0.0202
2015-11-13 2015-09-30 13F ROSS STORES COMMON 778296103 73,422 -8,310 -10.17 3,559 -10.42 0.0188
2015-08-14 2015-06-30 13F ROSS STORES COMMON 778296103 81,732 37,592 85.17 3,973 -14.58 0.0199
2015-05-15 2015-03-31 13F ROSS STORES COMMON 778296103 44,140 18,635 73.06 4,651 93.47 0.0236
2015-02-13 2014-12-31 13F ROSS STORES COMMON 778296103 25,505 -2,558 -9.12 2,404 13.34 0.0123
2014-11-12 2014-09-30 13F ROSS STORES COMMON 778296103 28,063 3,373 13.66 2,121 29.88 0.0103
2014-08-14 2014-06-30 13F ROSS STORES COMMON 778296103 24,690 -15,401 -38.42 1,633 -43.08 0.0079
2014-05-15 2014-03-31 13F ROSS STORES COMMON 778296103 40,091 -2,536 -5.95 2,869 -10.18 0.0135
2014-02-21 2013-12-31 13F ROSS STORES COMMON 778296103 42,627 -1,766 -3.98 3,194 -1.18 0.0148
2013-11-14 2013-09-30 13F ROSS STORES COMMON 778296103 44,393 -36,013 -44.79 3,232 -37.98 0.0159
2013-08-14 2013-06-30 13F ROSS STORES COMMON 778296103 80,406 80,406 5,211 0.0267
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.