Rio Tinto shares owned by Columbia Asset Management
Quarter-by-quarter ownership of Rio Tinto (RIO) shares owned by Columbia Asset Management
from 13F filings
Historical chart of Columbia Asset Management investment in Rio Tinto
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Quarterly reported holdings in Rio Tinto by Columbia Asset Management
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-12-31 | $808k | 10k | 80.03 |
| 2025-09-30 | $577k | 8.7k | 66.01 |
| 2025-06-30 | $465k | 8.0k | 58.33 |
| 2025-03-31 | $388k | 6.5k | 60.08 |
| 2024-12-31 | $474k | 8.1k | 58.81 |
| 2024-09-30 | $740k | 10k | 71.13 |
| 2024-06-30 | $898k | 14k | 65.94 |
| 2024-03-31 | $1.3M | 17k | 74.43 |
| 2023-12-31 | $1.3M | 17k | 74.43 |
| 2023-09-30 | $1.3M | 21k | 63.65 |
| 2023-06-30 | $1.3M | 21k | 63.82 |
| 2023-03-31 | $1.5M | 22k | 68.60 |
| 2022-12-31 | $1.4M | 19k | 71.22 |
| 2022-09-30 | $1.0M | 18k | 55.05 |
| 2022-06-30 | $1.1M | 17k | 61.00 |
| 2021-12-31 | $303k | 4.5k | 66.96 |
| 2021-09-30 | $232k | 3.5k | 66.76 |