BlackRock, Inc.Reduced
- Quarter
- Jun 30, 2026
- Shares held
- 34,202,834
- Share change
- -744,206
- Value change
- -$2.83B
SEC FORM 13F
COSTCO WHOLESALE CORP /NEW (COST) institutional 13F changes
Institutional holding changes reported on SEC Form 13F, classified as new, added, reduced or sold out, with a direct filing source for every row.
Last updated: 08/13/2026, 08:05 PM UTCAll COST stock data
- Recent 13F changes
- 12
- Institutions
- 12
- Bought / reduced
- 3 / 5
- Latest report period
- Jun 30, 2026
Institutional 13F changes
Newest filings first| Quarter | Institution | Type | Shares held | Share change | Value change | Source |
|---|---|---|---|---|---|---|
| Jun 30, 2026 | BlackRock, Inc. | Reduced | 34,202,834 | -744,206 | -$2.83B | SEC 13F ↗ |
| Jun 30, 2026 | Vanguard Capital Management LLC | Unchanged | 28,976,605 | +129,157 | -$1.64B | SEC 13F ↗ |
| Jun 30, 2026 | State Street Corp | Added | 18,384,951 | +232,719 | -$888.86M | SEC 13F ↗ |
| Jun 30, 2026 | Geode Capital Management, LLC | Unchanged | 10,627,472 | -31,752 | -$678.66M | SEC 13F ↗ |
| Mar 31, 2026 | Morgan Stanley | Added | 9,898,711 | +371,559 | +$370.23M | SEC 13F ↗ |
| Jun 30, 2026 | Vanguard Portfolio Management LLC | Reduced | 10,402,555 | -303,080 | -$936.14M | SEC 13F ↗ |
| Mar 31, 2026 | Bank of America Corp. | Added | 7,515,031 | +775,093 | +$772.33M | SEC 13F ↗ |
| Jun 30, 2026 | FMR LLC / Fidelity | Reduced | 6,163,541 | -555,048 | -$928.8M | SEC 13F ↗ |
| Mar 31, 2026 | Norges Bank | Sold out | 6,024,787 | — | — | SEC 13F ↗ |
| Mar 31, 2026 | Northern Trust Corp | Unchanged | 4,928,107 | — | — | SEC 13F ↗ |
| Mar 31, 2026 | Susquehanna International Group, LLP | Reduced | 4,395,841 | -1,974,943 | -$1.97B | SEC 13F ↗ |
| Mar 31, 2026 | Invesco Ltd. | Unchanged | 4,313,506 | — | — | SEC 13F ↗ |
Vanguard Capital Management LLCUnchanged
- Quarter
- Jun 30, 2026
- Shares held
- 28,976,605
- Share change
- +129,157
- Value change
- -$1.64B
State Street CorpAdded
- Quarter
- Jun 30, 2026
- Shares held
- 18,384,951
- Share change
- +232,719
- Value change
- -$888.86M
Geode Capital Management, LLCUnchanged
- Quarter
- Jun 30, 2026
- Shares held
- 10,627,472
- Share change
- -31,752
- Value change
- -$678.66M
Morgan StanleyAdded
- Quarter
- Mar 31, 2026
- Shares held
- 9,898,711
- Share change
- +371,559
- Value change
- +$370.23M
- Quarter
- Jun 30, 2026
- Shares held
- 10,402,555
- Share change
- -303,080
- Value change
- -$936.14M
- Quarter
- Mar 31, 2026
- Shares held
- 7,515,031
- Share change
- +775,093
- Value change
- +$772.33M
FMR LLC / FidelityReduced
- Quarter
- Jun 30, 2026
- Shares held
- 6,163,541
- Share change
- -555,048
- Value change
- -$928.8M
Norges BankSold out
- Quarter
- Mar 31, 2026
- Shares held
- 6,024,787
- Share change
- —
- Value change
- —
Northern Trust CorpUnchanged
- Quarter
- Mar 31, 2026
- Shares held
- 4,928,107
- Share change
- —
- Value change
- —
- Quarter
- Mar 31, 2026
- Shares held
- 4,395,841
- Share change
- -1,974,943
- Value change
- -$1.97B
Invesco Ltd.Unchanged
- Quarter
- Mar 31, 2026
- Shares held
- 4,313,506
- Share change
- —
- Value change
- —
How to read this dataset
Form 13F is filed after quarter end and can lag current holdings. Share counts may be derived from reported value and filing price; derived values are identified as calculations.