NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

Swiss National Bank's Holding History (CIK: 0001582202)

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

Q3 2018
Shares 49,900 Value ($000) $3,338 Avg Close — Range —
Q2 2018
Shares 49,900 Value ($000) $3,184 Avg Close — Range —
Q1 2018
Shares 49,900 Value ($000) $2,877 Avg Close — Range —
Q4 2017
Shares 48,300 Value ($000) $2,881 Avg Close — Range —
Q3 2017
Shares 47,200 Value ($000) $3,040 Avg Close — Range —
Q2 2017
Shares 47,200 Value ($000) $2,825 Avg Close — Range —
Q1 2017
Shares 47,200 Value ($000) $2,790 Avg Close — Range —
Q4 2016
Shares 45,300 Value ($000) $2,709 Avg Close — Range —
Q3 2016
Shares 43,700 Value ($000) $2,627 Avg Close — Range —
Q2 2016
Shares 45,000 Value ($000) $2,917 Avg Close — Range —
Q1 2016
Shares 45,000 Value ($000) $2,339 Avg Close — Range —
Q4 2015
Shares 36,000 Value ($000) $1,822 Avg Close — Range —
Q3 2015
Shares 36,000 Value ($000) $1,650 Avg Close — Range —
Q2 2015
Shares 31,400 Value ($000) $1,324 Avg Close — Range —
Q1 2015
Shares 30,400 Value ($000) $1,458 Avg Close — Range —
Q4 2014
Shares 30,400 Value ($000) $1,517 Avg Close — Range —
Q3 2014
Shares 29,700 Value ($000) $1,255 Avg Close — Range —
Q2 2014
Shares 30,300 Value ($000) $1,429 Avg Close — Range —
Q1 2014
Shares 30,300 Value ($000) $1,334 Avg Close — Range —
Q4 2013
Shares 23,400 Value ($000) $1,002 Avg Close — Range —
Q3 2013
Shares 23,400 Value ($000) $982 Avg Close — Range —
Q2 2013
Shares 24,700 Value ($000) $1,049 Avg Close — Range —