California State Teachers Retirement System / COST
California State Teachers Retirement System’s Costco Wholesale Corporation Position
Does California State Teachers Retirement System own Costco Wholesale Corporation (COST)? Yes — 687.1K shares worth $685M (+0.72% of its 13F portfolio) as of Q1 2026, down from 702.4K shares the prior filed quarter.
Position Value
$685M
Q1 2026
Shares
687.1K
% of Portfolio
+0.72%
Quarters Held
30
currently held
Position History COST
Reported value by quarter
| Quarter | Shares | Value | % of Portfolio |
|---|---|---|---|
| Q1 2026 | 687.1K | $685M | +0.72% |
| Q4 2025 | 702.4K | $606M | +0.61% |
| Q3 2025 | 710.6K | $658M | +0.67% |
| Q2 2025 | 706.0K | $699M | +0.78% |
| Q1 2025 | 702.8K | $665M | +0.82% |
| Q4 2024 | 706.2K | $647M | +0.93% |
| Q3 2024 | 724.5K | $642M | +0.90% |
| Q2 2024 | 726.0K | $617M | +0.90% |
| Q1 2024 | 725.0K | $531M | +0.67% |
| Q4 2023 | 717.8K | $474M | +0.65% |
| Q3 2023 | 707.2K | $400M | +0.61% |
| Q2 2023 | 735.2K | $396M | +0.56% |
| Q1 2023 | 749.5K | $372M | +0.55% |
| Q4 2022 | 757.1K | $346M | +0.54% |
| Q3 2022 | 748.6K | $354M | +0.60% |
| Q2 2022 | 757.1K | $363M | +0.57% |
| Q1 2022 | 754.5K | $434M | +0.57% |
| Q4 2021 | 799.1K | $454M | +0.53% |
| Q3 2021 | 799.2K | $359M | +0.46% |
| Q2 2021 | 820.5K | $325M | +0.41% |
| Q1 2021 | 855.3K | $301M | +0.40% |
| Q4 2020 | 862.9K | $325M | +0.45% |
| Q3 2020 | 855.0K | $304M | +0.49% |
| Q2 2020 | 854.4K | $259M | +0.46% |
| Q1 2020 | 866.1K | $247M | +0.53% |
| Q4 2019 | 869.0K | $255M | +0.43% |
| Q3 2019 | 807.4K | $233M | +0.45% |
| Q2 2019 | 798.2K | $211M | +0.42% |
| Q1 2019 | 740.8K | $179M | +0.37% |
| Q4 2018 | 737.4K | $150M | +0.34% |
Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See California State Teachers Retirement System’s full portfolio or all institutional holders of COST.