TORONTO -- Shares of Research In Motion were down more than three per cent in early trading after the BlackBerry maker's head of global sales resigned.

Patrick Spence leaves his position at the company as RIM heads into the crucial period leading up to the launch of its new line of smartphones later this year.

RIM's stock was off 34 cents to $11.03 in morning trading on the Toronto Stock Exchange.

Spence had worked at the company for 14 years, having a hand in the BlackBerry's meteoric rise to one of the world's best-selling smartphones.

Also on HuffPost:

Loading Slideshow...
  • BlackBerry 10 First Look

    In email, when you select a message, it swoops in from the side.

  • BlackBerry 10 Preview

    A look at the "Glance" view on attachments in email.

  • BlackBerry 10 Preview

    A look at the new touchscreen keyboard, with predictions of what word you are going to type next. Hold down the letter and swipe up briefly to choose that word.

  • BlackBerry 10 Preview

    Another look at the predictive keyboard.

  • BlackBerry 10 Preview

    The phone call screen. Swipe up to dismiss, down to answer.

  • BlackBerry 10 Preview

    The phone call screen.