Position in RIO
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$55,556,993
+$22,034,987 QoQ
Shares Held
595,530
+42.2% QoQ
Ownership
0.047%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
24 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in RIO Over Time
Shares Held
Position Value (USD)
Position in Other Industrial Metals & Mining
Basic Materials · as of Mar 31, 2026AMERICAN CENTURY COMPANIES INC holds $498,509,915 across 16 Other Industrial Metals & Mining names. RIO ranks #4 (11.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VALE |
Vale S.A.
|
8,745,416 | $139,139,568 | |
| 2 | MTRN |
MATERION Corp
|
882,684 | $127,680,240 | |
| 3 | BHP |
BHP Group Ltd
|
1,315,675 | $95,702,199 | |
| 4 | RIO |
Rio Tinto PLC
This page
|
595,530 | $55,556,993 | |
| 5 | CMP |
Compass Minerals International Inc
|
1,678,675 | $39,197,061 | |
| 6 | TECK |
Teck Resources Ltd
|
295,400 | $15,286,950 | |
| 7 | MP |
MP Materials Corp. / DE
|
314,696 | $15,187,228 | |
| 8 | GSM |
Ferroglobe PLC
|
1,790,180 | $7,375,541 |
All Filings in RIO
Export CSV
24 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $55,556,993 | 595,530 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $33,522,006 | 418,868 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $24,336,566 | 368,680 | Shares | Defined | 2025-11-12 | |
| 2025-06-30 | $18,683,740 | 320,311 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $16,825,223 | 280,047 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $15,824,006 | 269,070 | Shares | Defined | 2025-02-11 | |
| 2024-09-30 | $17,995,476 | 252,852 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $15,698,592 | 238,110 | Shares | Defined | 2024-08-07 | |
| 2024-03-31 | $14,252,518 | 223,604 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $17,453,349 | 234,399 | Shares | Defined | 2024-02-13 | |
| 2023-06-30 | $15,435,873 | 241,790 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $14,668,875 | 213,832 | Shares | Defined | 2023-05-11 | |
| 2022-12-31 | $14,983,826 | 210,447 | Shares | Defined | 2023-02-13 | |
| 2022-09-30 | $8,662,975 | 157,337 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $8,115,989 | 133,049 | Shares | Defined | 2022-08-12 | |
| 2022-03-31 | $6,040,693 | 75,133 | Shares | Defined | 2022-05-11 | |
| 2021-12-31 | $4,352,907 | 65,027 | Shares | Defined | 2022-02-07 | |
| 2021-09-30 | $3,459,805 | 51,778 | Shares | Defined | 2021-11-10 | |
| 2021-06-30 | $4,320,586 | 51,503 | Shares | Defined | 2021-08-05 | |
| 2021-03-31 | $2,767,834 | 35,645 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $2,181,981 | 29,008 | Shares | Defined | 2021-02-12 | |
| 2020-09-30 | $1,454,070 | 24,078 | Shares | Defined | 2020-11-13 | |
| 2020-06-30 | $1,318,207 | 23,464 | Shares | Defined | 2020-08-13 | |
| 2020-03-31 | $774,064 | 16,990 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||