NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

Invesco Ltd.'s Holding History (CIK: 0000914208)

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

Q3 2018
Shares 495,067 Value ($000) $33,120 Avg Close — Range —
Q2 2018
Shares 496,633 Value ($000) $31,685 Avg Close — Range —
Q1 2018
Shares 566,893 Value ($000) $32,681 Avg Close — Range —
Q4 2017
Shares 462,090 Value ($000) $27,564 Avg Close — Range —
Q3 2017
Shares 416,685 Value ($000) $26,835 Avg Close — Range —
Q2 2017
Shares 456,295 Value ($000) $27,309 Avg Close — Range —
Q1 2017
Shares 551,343 Value ($000) $32,584 Avg Close — Range —
Q4 2016
Shares 539,397 Value ($000) $32,256 Avg Close — Range —
Q3 2016
Shares 479,541 Value ($000) $28,825 Avg Close — Range —
Q2 2016
Shares 513,937 Value ($000) $33,313 Avg Close — Range —
Q1 2016
Shares 428,838 Value ($000) $23,093 Avg Close — Range —
Q4 2015
Shares 395,523 Value ($000) $20,018 Avg Close — Range —
Q3 2015
Shares 319,173 Value ($000) $14,630 Avg Close — Range —
Q2 2015
Shares 349,615 Value ($000) $14,747 Avg Close — Range —
Q1 2015
Shares 359,258 Value ($000) $17,226 Avg Close — Range —
Q4 2014
Shares 364,646 Value ($000) $18,196 Avg Close — Range —
Q3 2014
Shares 312,067 Value ($000) $13,185 Avg Close — Range —
Q2 2014
Shares 298,382 Value ($000) $14,068 Avg Close — Range —
Q1 2014
Shares 277,874 Value ($000) $12,229 Avg Close — Range —
Q4 2013
Shares 235,637 Value ($000) $10,090 Avg Close — Range —
Q3 2013
Shares 217,664 Value ($000) $9,138 Avg Close — Range —
Q2 2013
Shares 193,678 Value ($000) $8,228 Avg Close — Range —