NORTHWESTERN CORP

Ticker: NWE CUSIP: 668074305 Class: EQTY

OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM's Holding History (CIK: 0001132716)

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

Q1 2015
Shares 72,597 Value ($000) $3,905,000 Avg Close $35.30 Range $32.73 - $38.16
Q4 2014
Shares 77,006 Value ($000) $4,357,000 Avg Close $33.16 Range $28.63 - $37.51