Mesirow Financial Investment Management, Inc.
Position in RIO — Rio Tinto PLC
CIK 1469475
CHICAGO, IL
Position in RIO
as of Jun 30, 2026
· filed Jul 22, 2026
Position Value
$424,052
+$7,793 QoQ
Shares Held
4,467
+0.1% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#559
of 965 holders
Holding Since
Dec 2023
11 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in RIO Over Time
Shares Held
Position Value (USD)
Position in Other Industrial Metals & Mining
Basic Materials · as of Jun 30, 2026Mesirow Financial Investment Management, Inc. holds $1,590,480 across 3 Other Industrial Metals & Mining names. RIO ranks #2 (26.7% of the industry book) .
All Filings in RIO
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11 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $424,052 | 4,467 | Shares | Sole | 2026-07-22 | |
| 2026-03-31 | $416,259 | 4,462 | Shares | Sole | 2026-04-21 | |
| 2025-12-31 | $307,235 | 3,839 | Shares | Sole | 2026-02-05 | |
| 2025-09-30 | $282,918 | 4,286 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $250,585 | 4,296 | Shares | Sole | 2025-08-04 | |
| 2025-03-31 | $257,502 | 4,286 | Shares | Sole | 2025-05-08 | |
| 2024-12-31 | $252,059 | 4,286 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $638,323 | 8,969 | Shares | Sole | 2024-11-01 | |
| 2024-06-30 | $602,402 | 9,137 | Shares | Sole | 2024-08-09 | |
| 2024-03-31 | $582,392 | 9,137 | Shares | Sole | 2024-04-25 | |
| 2023-12-31 | $682,128 | 9,161 | Shares | Sole | 2024-02-13 | |
| No filing history on record for this holder in this stock. | ||||||