Position in RIO
as of Mar 31, 2026
· filed Apr 6, 2026
Position Value
$432,865
+$154,441 QoQ
Shares Held
4,640
+33.4% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2023
10 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, 2026GAMMA Investing LLC holds $1,625,856 across 16 Other Industrial Metals & Mining names. RIO ranks #2 (26.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BHP |
BHP Group Ltd
|
8,289 | $602,941 | |
| 2 | RIO |
Rio Tinto PLC
This page
|
4,640 | $432,865 | |
| 3 | MP |
MP Materials Corp. / DE
|
5,216 | $251,724 | |
| 4 | VALE |
Vale S.A.
|
5,293 | $84,211 | |
| 5 | MTRN |
MATERION Corp
|
581 | $84,041 | |
| 6 | ELVR |
Elevra Lithium Ltd
|
995 | $58,605 | |
| 7 | IPX |
IPERIONX Ltd
|
1,198 | $31,195 | |
| 8 | USAR |
USA Rare Earth, Inc.
|
1,858 | $28,120 |
All Filings in RIO
Export CSV
10 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $432,865 | 4,640 | Shares | Defined | 2026-04-06 | |
| 2025-12-31 | $278,424 | 3,479 | Shares | Defined | 2026-01-05 | |
| 2025-09-30 | $160,866 | 2,437 | Shares | Defined | 2025-10-02 | |
| 2025-06-30 | $90,761 | 1,556 | Shares | Defined | 2025-07-14 | |
| 2025-03-31 | $152,963 | 2,546 | Shares | Defined | 2025-04-15 | |
| 2024-12-31 | $109,445 | 1,861 | Shares | Defined | 2025-01-03 | |
| 2024-09-30 | $117,999 | 1,658 | Shares | Defined | 2024-10-07 | |
| 2024-06-30 | $107,070 | 1,624 | Shares | Defined | 2024-07-02 | |
| 2024-03-31 | $88,216 | 1,384 | Shares | Defined | 2024-04-05 | |
| 2023-12-31 | $131,049 | 1,760 | Shares | Defined | 2024-02-01 | |
| No filing history on record for this holder in this stock. | ||||||