好市多批發公司
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionBeech Hill Advisors, Inc.
Latest Disclosed Ownership655 shares
Latest Disclosed Value $ 652,662
Beech Hill Advisors, Inc. ownership in COST / Costco Wholesale Corporation

On April 9, 2026 - Beech Hill Advisors, Inc. filed a 13F-HR form disclosing ownership of 655 shares of Costco Wholesale Corporation (MX:COST) valued at $652,662 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 655 shares of Costco Wholesale Corporation. This represents a change in shares of 0.00% 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)
2026-04-09 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 655 0 0.00 653 15.60 0.3269
2026-01-14 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 655 0 0.00 565 -6.93 0.2703
2025-10-14 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 655 0 0.00 606 -6.48 0.2832
2025-07-30 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 655 0 0.00 648 4.68 0.2918
2025-04-23 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 655 -50 -7.09 619 -4.03 0.2465
2025-01-15 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 705 -50 -6.62 646 -3.59 0.2418
2024-10-16 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 755 0 0.00 669 4.37 0.2537
2024-07-12 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 755 0 0.00 642 15.91 0.2648
2024-04-12 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 755 -100 -11.70 553 -1.95 0.2298
2024-01-10 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 855 0 0.00 564 16.77 0.2730
2023-10-11 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 855 0 0.00 483 5.00 0.2436
2023-07-11 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 855 0 0.00 460 8.49 0.2238
2023-04-14 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 855 0 0.00 425 8.72 0.2140
2023-01-18 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 855 0 0.00 390 -3.47 0.2169
2022-10-12 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 855 0 0.00 404 -1.46 0.2315
2022-07-11 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 855 -11 -1.27 410 -17.84 0.2190
2022-04-19 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 866 5 0.58 499 2.04 0.2036
2022-01-19 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 861 -6 -0.69 489 25.71 0.1858
2021-10-14 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 867 17 2.00 389 15.77 0.1615
2021-07-15 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 850 0 0.00 336 12.00 0.1364
2021-04-19 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 850 -500 -37.04 300 -41.06 0.1244
2021-01-22 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 1,350 0 0.00 509 6.26 0.2263
2020-10-19 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 1,350 0 0.00 479 17.11 0.2362
2020-07-17 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 1,350 0 0.00 409 6.23 0.2073
2020-05-05 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 1,350 0 0.00 385 -3.02 0.2628
2020-01-17 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 1,350 0 0.00 397 2.06 0.1850
2019-10-18 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 1,350 0 0.00 389 8.96 0.2078
2019-07-15 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 1,350 0 0.00 357 9.17 0.1874
2019-04-09 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 1,350 -200 -12.90 327 3.48 0.2017
2019-01-14 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 1,550 0 0.00 316 -13.19 0.1966
2018-10-10 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 1,550 0 0.00 364 12.35 0.1887
2018-08-01 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 1,550 0 0.00 324 10.96 0.1814
2018-04-23 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 1,550 0 0.00 292 1.39 0.1536
2018-01-22 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 1,550 0 0.00 288 12.94 0.1422
2017-10-20 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 1,550 0 0.00 255 2.82 0.1345
2017-07-18 2017-06-30 13F COSTCO WHSL CORP COM 22160K105 1,550 0 0.00 248 -4.62 0.1355
2017-04-19 2017-03-31 13F COSTCO WHSL CORP COM 22160K105 1,550 0 0.00 260 4.84 0.1496
2017-01-25 2016-12-31 13F COSTCO WHSL CORP COM 22160K105 1,550 0 0.00 248 5.08 0.1483
2016-10-21 2016-09-30 13F COSTCO WHSL CORP COM 22160K105 1,550 0 0.00 236 -2.88 0.1444
2016-07-15 2016-06-30 13F COSTCO WHSL CORP COM 22160K105 1,550 200 14.81 243 14.08 0.1642
2016-04-20 2016-03-31 13F COSTCO WHSL CORP COM 22160K105 1,350 0 0.00 213 -2.29 0.1666
2016-01-26 2015-12-31 13F COSTCO WHSL CORP COM 22160K105 1,350 1,350 0.00 218 0.1378
2015-08-12 2015-06-30 13F COSTCO WHSL CORP COM 22160K105 0 -1,350 -100.00 0 -100.00
2015-04-29 2015-03-31 13F COSTCO WHSL CORP COM 22160K105 1,350 1,350 205 0.0963
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.