X0306 4 2016-05-18 false 0001412043 OPOWER, INC. OPWR 0001601483 Kramer Thomas G. C/O OPOWER, INC. 1515 NORTH COURTHOUSE ROAD, 8TH FLOOR ARLINGTON VA 22201 false true false false Chief Financial Officer Common Stock 2016-05-18 4 F false 2596.00 10.26 D 890360.00 D Common Stock 2016-05-18 4 F false 8830.00 10.26 D 881530.00 D Represents the number of shares withheld by the Issuer in satisfaction of tax withholding obligations in connection with the vesting of restricted stock units. Such withholding is mandated by an election of the Issuer made in advance and does not represent a discretionary trade by the reporting person. /s/ Donald Saelinger, Attorney-in-Fact for Thomas Kramer 2016-05-20