Ross Stores, Inc.
MX ˙ BMV ˙ US7782961038
SecurityMX:ROST / Ross Stores, Inc.
InstitutionAssenagon Asset Management S.A.
Latest Disclosed Ownership363,996 shares
Latest Disclosed Value $ 78,852,453
Assenagon Asset Management S.A. reports 51.68% decrease in ownership of ROST / Ross Stores, Inc.

On April 20, 2026 - Assenagon Asset Management S.A. filed a 13F-HR form disclosing ownership of 363,996 shares of Ross Stores, Inc. (MX:ROST) valued at $78,852,453 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 9, 2026 disclosing 753,297 shares of Ross Stores, Inc.. This represents a change in shares of -51.68% 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)
2026-04-20 2026-03-31 13F ROSS STORES COM 778296103 363,996 -389,301 -51.68 78,852 -41.89 0.1197
2026-01-09 2025-12-31 13F ROSS STORES COM 778296103 753,297 302,924 67.26 135,699 97.72 0.1868
2025-10-07 2025-09-30 13F ROSS STORES COM 778296103 450,373 145,450 47.70 68,632 76.42 0.0939
2025-07-11 2025-06-30 13F ROSS STORES COM 778296103 304,923 240,227 371.32 38,902 370.57 0.0577
2025-04-15 2025-03-31 13F ROSS STORES COM 778296103 64,696 19,623 43.54 8,268 21.25 0.0138
2025-01-14 2024-12-31 13F ROSS STORES COM 778296103 45,073 -130,146 -74.28 6,818 -74.15 0.0110
2024-10-23 2024-09-30 13F ROSS STORES COM 778296103 175,219 136,109 348.02 26,372 364.05 0.0485
2024-07-18 2024-06-30 13F ROSS STORES COM 778296103 39,110 -86,507 -68.87 5,683 -69.17 0.0127
2024-04-24 2024-03-31 13F ROSS STORES COM 778296103 125,617 -150,104 -54.44 18,436 -51.69 0.0436
2024-01-17 2023-12-31 13F ROSS STORES COM 778296103 275,721 29,053 11.78 38,157 36.95 0.1013
2023-11-06 2023-09-30 13F ROSS STORES COM 778296103 246,668 203,415 470.29 27,861 474.57 0.0863
2023-07-25 2023-06-30 13F ROSS STORES COM 778296103 43,253 35,381 449.45 4,850 480.72 0.0168
2023-04-18 2023-03-31 13F ROSS STORES COM 778296103 7,872 -286 -3.51 835 0.0030
2023-01-12 2022-12-31 13F ROSS STORES COM 778296103 8,158 570 7.51 1 -100.00 0.0034
2022-10-27 2022-09-30 13F ROSS STORES COM 778296103 7,588 7,588 639 0.0025
2022-07-27 2022-06-30 13F ROSS STORES COM 778296103 0 -326,454 -100.00 0 -100.00
2022-04-25 2022-03-31 13F ROSS STORES COM 778296103 326,454 225,422 223.12 29,531 155.77 0.0820
2022-02-01 2021-12-31 13F ROSS STORES COM 778296103 101,032 67,187 198.51 11,546 213.41 0.0334
2021-10-19 2021-09-30 13F ROSS STORES COM 778296103 33,845 -118,231 -77.74 3,684 -80.46 0.0118
2021-07-15 2021-06-30 13F ROSS STORES COM 778296103 152,076 48,084 46.24 18,857 51.22 0.0640
2021-04-26 2021-03-31 13F ROSS STORES COM 778296103 103,992 103,992 12,470 0.0506
2021-02-01 2020-12-31 13F ROSS STORES COM 778296103 0 -576,388 -100.00 0 -100.00
2020-10-07 2020-09-30 13F ROSS STORES COM 778296103 576,388 498,815 643.03 53,789 713.51 0.3017
2020-07-21 2020-06-30 13F ROSS STORES COM 778296103 77,573 75,056 2,981.96 6,612 2,919.18 0.0424
2020-04-17 2020-03-31 13F ROSS STORES COM 778296103 2,517 -31,071 -92.51 219 -94.40 0.0018
2020-01-17 2019-12-31 13F ROSS STORES COM 778296103 33,588 -577,819 -94.51 3,910 -94.18 0.0246
2019-10-16 2019-09-30 13F ROSS STORES COM 778296103 611,407 519,093 562.31 67,163 634.02 0.4496
2019-08-12 2019-06-30 13F ROSS STORES COM 778296103 92,314 27,635 42.73 9,150 51.94 0.0687
2019-04-26 2019-03-31 13F ROSS STORES COM 778296103 64,679 -135,790 -67.74 6,022 -63.89 0.0565
2019-01-23 2018-12-31 13F ROSS STORES COM 778296103 200,469 153,187 323.99 16,679 255.93 0.1889
2018-10-29 2018-09-30 13F ROSS STORES COM 778296103 47,282 -519,542 -91.66 4,686 -90.25 0.0463
2018-07-17 2018-06-30 13F ROSS STORES COM 778296103 566,824 566,824 48,038 0.5545
2018-01-25 2017-12-31 13F ROSS STORES COM 778296103 0 -54,996 -100.00 0 -100.00
2017-10-18 2017-09-30 13F ROSS STORES COM 778296103 54,996 54,996 3,551 0.0330
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.