Costco Wholesale Corporation shares owned by William Blair $ Company
Quarter-by-quarter ownership of Costco Wholesale Corporation (COST) shares owned by William Blair $ Company
from 13F filings
Historical chart of William Blair $ Company investment in Costco Wholesale Corporation
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Quarterly reported holdings in Costco Wholesale Corporation by William Blair $ Company
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2013-03-31 | $174M | 1.6M | 106.11 |
| 2012-12-31 | $113M | 1.1M | 98.73 |
| 2012-09-30 | $60M | 594k | 100.15 |
| 2012-06-30 | $45M | 469k | 95.00 |
| 2011-12-31 | $16M | 186k | 83.32 |
| 2011-09-30 | $18M | 215k | 82.13 |
| 2011-03-31 | $15M | 199k | 73.32 |
| 2010-12-31 | $12M | 161k | 72.20 |