NORTHWEST NAT GAS CO

CUSIP: 667655104 Class: COM

BlueCrest Capital Management Ltd's Holding History (CIK: 0001610880)

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

Q1 2018
Shares 15,969 Value ($000) $921 Avg Close — Range —
Q4 2017
Shares 7,306 Value ($000) $436 Avg Close — Range —
Q2 2017
Shares 3,863 Value ($000) $231 Avg Close — Range —