Costco Wholesale Corporation
IT ˙ BIT ˙ US22160K1051
836,20 € ↑12,80 (1,55%)
2026-06-04
DELAT PRIS
SecurityIT:1COST / Costco Wholesale Corporation
InstitutionLinscomb & Williams, Inc.
Latest Disclosed Ownership5,681 shares
Latest Disclosed Value $ 5,660,973
Linscomb & Williams, Inc. reports 14.98% decrease in ownership of 1COST / Costco Wholesale Corporation

On May 11, 2026 - Linscomb & Williams, Inc. filed a 13F-HR form disclosing ownership of 5,681 shares of Costco Wholesale Corporation (IT:1COST) valued at $5,106,651 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 6,682 shares of Costco Wholesale Corporation. This represents a change in shares of -14.98% during the quarter. The current value of the position is $4,750,452 USD.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-11 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 5,681 -1,001 -14.98 5,661 -1.75 0.2519
2026-02-10 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 6,682 249 3.87 5,762 -3.26 0.2419
2025-11-05 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 6,433 -20 -0.31 5,955 -6.78 0.2565
2025-08-04 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 6,453 87 1.37 6,388 6.10 0.2936
2025-05-12 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 6,366 -124 -1.91 6,021 1.26 0.2998
2025-02-05 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 6,490 142 2.24 5,946 5.67 0.2960
2024-11-06 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 6,348 -152 -2.34 5,628 1.85 0.2790
2024-08-07 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 6,500 -27 -0.41 5,525 15.54 0.2859
2024-05-14 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 6,527 -163 -2.44 4,782 8.31 0.2460
2024-02-06 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 6,690 -66 -0.98 4,416 15.70 0.2431
2023-10-10 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 6,756 -55 -0.81 3,817 4.09 0.2233
2023-08-09 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 6,811 -226 -3.21 3,667 4.86 0.1979
2023-05-11 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 7,037 -647 -8.42 3,496 -0.31 0.1834
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 7,684 476 6.60 3,508 3.03 0.1781
2022-11-09 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 7,208 68 0.95 3,404 -0.53 0.2067
2022-08-15 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 7,140 -247 -3.34 3,422 -19.54 0.1962
2022-05-17 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 7,387 95 1.30 4,253 2.73 0.2031
2022-02-10 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 7,292 260 3.70 4,140 31.01 0.1976
2021-11-03 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 7,032 228 3.35 3,160 17.38 0.1628
2021-08-10 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 6,804 222 3.37 2,692 16.03 0.1378
2021-05-12 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 6,582 -39 -0.59 2,320 -7.01 0.1262
2021-02-11 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 6,621 555 9.15 2,495 15.88 0.1490
2020-11-13 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 6,066 65 1.08 2,153 18.30 0.1483
2020-08-11 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 6,001 1,662 38.30 1,820 47.13 0.1331
2020-05-11 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 4,339 636 17.18 1,237 13.69 0.1093
2020-02-13 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 3,703 332 9.85 1,088 12.05 0.0710
2019-11-08 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 3,371 226 7.19 971 16.85 0.0781
2019-08-06 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 3,145 -7 -0.22 831 8.91 0.0682
2019-05-09 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 3,152 -5 -0.16 763 18.66 0.0642
2019-02-08 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 3,157 34 1.09 643 -12.40 0.0608
2018-11-08 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 3,123 -164 -4.99 734 6.84 0.0603
2018-08-07 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 3,287 299 10.01 687 22.02 0.0584
2018-05-04 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 2,988 130 4.55 563 5.83 0.0479
2018-02-02 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 2,858 -308 -9.73 532 2.31 0.0437
2017-10-27 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 3,166 -53 -1.65 520 0.97 0.0446
2017-08-15 2017-06-30 13F COSTCO WHSL CORP COM 22160K105 3,219 -55 -1.68 515 -6.19 0.0461
2017-04-28 2017-03-31 13F COSTCO WHSL CORP COM 22160K105 3,274 -77 -2.30 549 2.23 0.0497
2017-02-07 2016-12-31 13F COSTCO WHSL CORP COM 22160K105 3,351 -132 -3.79 537 1.13 0.0500
2016-11-10 2016-09-30 13F COSTCO WHSL CORP COM 22160K105 3,483 -327 -8.58 531 -11.20 0.0516
2016-08-05 2016-06-30 13F COSTCO WHSL CORP COM 22160K105 3,810 -162 -4.08 598 -4.47 0.0603
2016-05-04 2016-03-31 13F COSTCO WHSL CORP COM 22160K105 3,972 309 8.44 626 5.74 0.0678
2016-01-29 2015-12-31 13F COSTCO WHSL CORP COM 22160K105 3,663 77 2.15 592 14.29 0.0670
2015-11-09 2015-09-30 13F COSTCO WHSL CORP COM 22160K105 3,586 562 18.58 518 26.96 0.0609
2015-08-05 2015-06-30 13F COSTCO WHSL CORP COM 22160K105 3,024 -59 -1.91 408 -12.63 0.0445
2015-05-06 2015-03-31 13F COSTCO WHSL CORP COM 22160K105 3,083 3,083 0.00 467 0.0501
2015-02-04 2014-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -2,045 -100.00 0 -100.00
2014-11-05 2014-09-30 13F COSTCO WHSL CORP COM 22160K105 2,045 2,045 256 0.0282
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.