NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

Robeco Schweiz AG's Holding History (CIK: 0001418427)

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

Q3 2018
Shares 120,000 Value ($000) $7,980 Avg Close — Range —
Q2 2018
Shares 120,000 Value ($000) $7,764 Avg Close — Range —
Q1 2018
Shares 100,000 Value ($000) $5,765 Avg Close — Range —
Q4 2017
Shares 110,000 Value ($000) $6,595 Avg Close — Range —
Q3 2017
Shares 85,000 Value ($000) $5,521 Avg Close — Range —
Q2 2017
Shares 75,000 Value ($000) $4,478 Avg Close — Range —
Q1 2017
Shares 95,000 Value ($000) $5,619 Avg Close — Range —
Q4 2016
Shares 90,000 Value ($000) $5,418 Avg Close — Range —
Q3 2016
Shares 106,000 Value ($000) $6,410 Avg Close — Range —
Q2 2016
Shares 90,200 Value ($000) $5,656 Avg Close — Range —
Q1 2016
Shares 80,500 Value ($000) $4,359 Avg Close — Range —
Q4 2015
Shares 75,500 Value ($000) $3,885 Avg Close — Range —
Q3 2015
Shares 54,100 Value ($000) $2,427 Avg Close — Range —
Q2 2015
Shares 56,000 Value ($000) $2,392 Avg Close — Range —
Q1 2015
Shares 47,000 Value ($000) $2,253 Avg Close — Range —