Sigma-Aldrich Corporation shares owned by R. Robert Woodburn Jr.
Quarter-by-quarter ownership of Sigma-Aldrich Corporation shares owned by R. Robert Woodburn Jr.
from 13F filings
Historical chart of R. Robert Woodburn Jr. investment in Sigma-Aldrich Corporation
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Quarterly reported holdings in Sigma-Aldrich Corporation by R. Robert Woodburn Jr.
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2013-06-30 | $365k | 4.5k | 80.33 |
| 2013-03-31 | $404k | 5.2k | 77.69 |
| 2012-12-31 | $383k | 5.2k | 73.65 |
| 2012-09-30 | $374k | 5.2k | 71.92 |
| 2012-06-30 | $384k | 5.2k | 73.85 |
| 2012-03-31 | $368k | 5.2k | 70.77 |
| 2011-12-31 | $325k | 5.2k | 62.50 |
| 2011-09-30 | $321k | 5.2k | 61.75 |
| 2011-06-30 | $382k | 5.2k | 73.50 |
| 2011-01-31 | $332k | 5.2k | 63.75 |