The Participant shall become 100% vested in the Stock Units granted hereunder upon the date (the “vesting date”) that is the earliest to occur of (a) the date of Northern’s 20[__] Annual Meeting of Stockholders (the “regular vesting date”), (b) the date of the Participant’s death, or (c) the date of a Change in Control, provided that the Participant has not incurred a Separation from Service, as defined in Paragraph 7(c) below, prior to the earliest of the foregoing three events.