RIO TINTO PLC

Ticker: RIO CUSIP: 767204100 Class: COM

Main Street Research LLC's Holding History (CIK: 0001513211)

Note: Option positions (PUT/CALL) are excluded.

Q2 2021
Shares 232,610 Value ($000) $19,514 Avg Close — Range —
Q1 2021
Shares 218,418 Value ($000) $16,960 Avg Close — Range —