RIO TINTO PLC

Ticker: RIO CUSIP: 767204100 Class: COM

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

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

Q1 2019
Shares 59,871 Value ($000) $3,523 Avg Close — Range —
Q4 2018
Shares 49,181 Value ($000) $2,384 Avg Close — Range —
Q3 2018
Shares 43,818 Value ($000) $2,236 Avg Close — Range —
Q2 2018
Shares 43,655 Value ($000) $2,422 Avg Close — Range —
Q1 2018
Shares 67,187 Value ($000) $3,462 Avg Close — Range —
Q4 2017
Shares 56,403 Value ($000) $2,985 Avg Close — Range —
Q3 2017
Shares 56,279 Value ($000) $2,656 Avg Close — Range —
Q2 2017
Shares 57,066 Value ($000) $2,414 Avg Close — Range —
Q1 2017
Shares 62,078 Value ($000) $2,525 Avg Close — Range —
Q4 2016
Shares 89,175 Value ($000) $3,430 Avg Close — Range —
Q3 2016
Shares 98,742 Value ($000) $3,298 Avg Close — Range —
Q2 2016
Shares 157,194 Value ($000) $4,920 Avg Close — Range —
Q1 2016
Shares 161,888 Value ($000) $4,577 Avg Close — Range —
Q4 2015
Shares 159,064 Value ($000) $4,632 Avg Close — Range —
Q3 2015
Shares 40,839 Value ($000) $1,381 Avg Close — Range —