NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q3 2018
Shares 24,259 Value ($000) $1,623 Avg Close Range
Q2 2018
Shares 21,828 Value ($000) $1,393 Avg Close Range
Q1 2018
Shares 22,774 Value ($000) $1,313 Avg Close Range
Q4 2017
Shares 26,267 Value ($000) $1,567 Avg Close Range
Q3 2017
Shares 27,071 Value ($000) $1,743 Avg Close Range
Q2 2017
Shares 26,214 Value ($000) $1,569 Avg Close Range
Q1 2017
Shares 23,753 Value ($000) $1,404 Avg Close Range
Q4 2016
Shares 23,455 Value ($000) $1,403 Avg Close Range
Q3 2016
Shares 24,785 Value ($000) $1,490 Avg Close Range
Q2 2016
Shares 25,083 Value ($000) $1,626 Avg Close Range
Q1 2016
Shares 26,583 Value ($000) $1,432 Avg Close Range
Q4 2015
Shares 26,723 Value ($000) $1,352 Avg Close Range
Q3 2015
Shares 22,521 Value ($000) $1,032 Avg Close Range
Q2 2015
Shares 21,002 Value ($000) $886 Avg Close Range
Q1 2015
Shares 18,484 Value ($000) $886 Avg Close Range
Q4 2014
Shares 16,557 Value ($000) $826 Avg Close Range
Q3 2014
Shares 13,144 Value ($000) $555 Avg Close Range
Q2 2014
Shares 13,046 Value ($000) $615 Avg Close Range
Q1 2014
Shares 14,790 Value ($000) $651 Avg Close Range
Q4 2013
Shares 12,207 Value ($000) $523 Avg Close Range
Q3 2013
Shares 8,940 Value ($000) $375 Avg Close Range
Q2 2013
Shares 6,302 Value ($000) $268 Avg Close Range