好市多批發公司
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionPittenger & Anderson Inc
Latest Disclosed Ownership52,116 shares
Latest Disclosed Value $ 51,929,946
Pittenger & Anderson Inc reports 0.87% increase in ownership of COST / Costco Wholesale Corporation

On May 1, 2026 - Pittenger & Anderson Inc filed a 13F-HR form disclosing ownership of 52,116 shares of Costco Wholesale Corporation (MX:COST) valued at $51,929,946 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 51,668 shares of Costco Wholesale Corporation. This represents a change in shares of 0.87% 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)
2026-05-01 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 52,116 448 0.87 51,930 16.55 2.0666
2026-02-02 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 51,668 -263 -0.51 44,555 -7.31 1.7145
2025-11-03 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 51,931 4 0.01 48,069 -6.49 1.7626
2025-07-30 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 51,927 -2,387 -4.39 51,405 0.07 1.8793
2025-05-01 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 54,314 -454 -0.83 51,369 2.37 1.8826
2025-01-31 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 54,768 -1,739 -3.08 50,182 0.18 1.8229
2024-10-30 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 56,507 479 0.85 50,095 5.19 1.8762
2024-08-09 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 56,028 368 0.66 47,623 16.79 1.9567
2024-05-02 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 55,660 -266 -0.48 40,778 10.46 1.6565
2024-02-02 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 55,926 -552 -0.98 36,916 15.70 1.6539
2023-11-02 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 56,478 -392 -0.69 31,908 4.21 1.6093
2023-08-09 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 56,870 -801 -1.39 30,618 6.85 1.4727
2023-05-10 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 57,671 -351 -0.60 28,655 8.18 1.4806
2023-02-10 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 58,022 344 0.60 26,487 -2.76 1.4558
2022-11-15 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 57,678 -464 -0.80 27,240 -2.25 1.6362
2022-07-14 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 58,142 -72 -0.12 27,866 -16.87 1.6266
2022-04-28 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 58,214 707 1.23 33,523 2.68 1.6442
2022-02-10 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 57,507 1,398 2.49 32,647 29.48 1.5081
2021-11-12 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 56,109 1,089 1.98 25,213 15.82 1.2650
2021-08-13 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 55,020 514 0.94 21,770 13.31 1.1151
2021-05-12 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 54,506 7,352 15.59 19,212 8.13 1.0362
2021-02-11 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 47,154 913 1.97 17,767 8.23 1.0077
2020-11-10 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 46,241 582 1.27 16,416 18.58 1.0483
2020-08-13 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 45,659 926 2.07 13,844 8.54 0.9739
2020-04-30 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 44,733 -1 -0.00 12,755 -2.99 1.0840
2020-02-12 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 44,734 -437 -0.97 13,148 1.03 0.8794
2019-11-14 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 45,171 -980 -2.12 13,014 6.71 0.9384
2019-08-09 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 46,151 222 0.48 12,196 9.67 0.9126
2019-05-10 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 45,929 252 0.55 11,121 19.52 0.8699
2019-02-14 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 45,677 69 0.15 9,305 -13.13 0.8544
2018-10-12 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 45,608 -155 -0.34 10,712 12.00 0.8451
2018-08-15 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 45,763 -305 -0.66 9,564 10.17 0.8178
2018-05-08 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 46,068 -325 -0.70 8,681 0.53 0.7604
2018-02-13 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 46,393 765 1.68 8,635 15.19 0.7556
2017-11-13 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 45,628 882 1.97 7,496 4.75 0.6800
2017-08-10 2017-06-30 13F COSTCO WHSL CORP COM 22160K105 44,746 2,763 6.58 7,156 1.65 0.6837
2017-05-15 2017-03-31 13F COSTCO WHSL CORP COM 22160K105 41,983 -1,017 -2.37 7,040 2.25 0.7075
2017-02-16 2016-12-31 13F COSTCO WHSL CORP COM 22160K105 43,000 -380 -0.88 6,885 4.07 0.7322
2016-11-14 2016-09-30 13F COSTCO WHSL CORP COM 22160K105 43,380 -1,080 -2.43 6,616 -5.24 0.7342
2016-08-09 2016-06-30 13F COSTCO WHSL CORP COM 22160K105 44,460 860 1.97 6,982 1.63 0.7700
2016-05-13 2016-03-31 13F COSTCO WHSL CORP COM 22160K105 43,600 1,995 4.80 6,870 2.25 0.7989
2016-02-10 2015-12-31 13F COSTCO WHSL CORP COM 22160K105 41,605 3,850 10.20 6,719 23.10 0.8415
2015-11-10 2015-09-30 13F COSTCO WHSL CORP COM 22160K105 37,755 1,620 4.48 5,458 11.84 0.7213
2015-08-14 2015-06-30 13F COSTCO WHSL CORP COM 22160K105 36,135 4,630 14.70 4,880 2.24 0.6263
2015-05-12 2015-03-31 13F COSTCO WHSL CORP COM 22160K105 31,505 1,670 5.60 4,773 12.86 0.6147
2015-02-18 2014-12-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 29,835 1,420 5.00 4,229 18.76 0.5576
2015-02-13 2014-12-31 13F COSTCO WHSL CORP COM 22160K105 29,835 4,229
2014-11-13 2014-09-30 13F Costco Wholesale COM 22160K105 28,415 680 2.45 3,561 11.49 0.5220
2014-08-15 2014-06-30 13F COSTCO WHSL CORP COM 22160K105 27,735 4,530 19.52 3,194 23.23 0.4704
2014-05-13 2014-03-31 13F COSTCO WHOLESALE COM 22160K105 23,205 3,780 19.46 2,592 12.11 0.3613
2014-02-07 2013-12-31 13F COSTCO WHOLESALE COM 22160K105 19,425 5,150 36.08 2,312 40.63 0.3244
2013-11-12 2013-09-30 13F COSTCO WHOLESALE COM 22160K105 14,275 355 2.55 1,644 6.82 0.2628
2013-08-08 2013-06-30 13F COSTCO WHOLESALE COM 22160K105 13,920 13,920 1,539 0.2656
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.