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PIN OAK INVESTMENT ADVISORS INC

Position in RIO — Rio Tinto PLC

CIK 1094584 HOUSTON, TX

Position in RIO

as of Jun 30, 2026 · filed Aug 18, 2026
Position Value
$107,555
+$6,616 QoQ
Shares Held
1,133
+4.7% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.08%
of 13F equity value
Holder Rank
#754
of 965 holders
Holding Since
Mar 2020
26 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, 2026

PIN OAK INVESTMENT ADVISORS INC holds $160,383 across 4 Other Industrial Metals & Mining names. RIO ranks #1 (67.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 RIO
Rio Tinto PLC
This page
1,133 $107,555

All Filings in RIO

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $107,555 1,133
2026-03-31 $100,939 1,082
2025-12-31 $101 1,082
2025-09-30 $87,727 1,329
2025-06-30 $110,827 1,900
2025-03-31 $116 1,614
2024-12-31 $18 253
2024-09-30 $18,006 253
2024-06-30 $16,680 253
2024-03-31 $17,974 282
2023-12-31 $20,997 282
2023-09-30 $17,946 282
2023-06-30 $18,002 282
2023-03-31 $19,345 282
2022-12-31 $20,078 282
2022-09-30 $15,526 282
2022-06-30 $17,202 282
2022-03-31 $22,672 282
2021-12-31 $18,877 282
2021-09-30 $18,843 282
2021-06-30 $23,656 282
2021-03-31 $21,897 282
2020-12-31 $21,212 282
2020-09-30 $17,029 282
2020-06-30 $15,842 282
2020-03-31 $6,013 132