The Denver-based manager of the $985 million AIM Technology Fund is leaving the post, according to a regulatory filing.

AIM Investments, which is based in Houston but has an office at the Tech Center, is replacing Michelle Espelien Fenton with Lanny Sachnowitz. He'll take over in the interim while AIM searches for a successor.

That leaves only one manager, AIM Leisure Fund skipper Mark Greenberg, left at the Colorado campus, though AIM ultimately could give the tech fund reins to a manager in Denver. An AIM spokesman said Fenton is leaving the company but did not elaborate on the change.

The fund has averaged an annual gain of 4.8 percent in the past three years, leaving it in the bottom half of its peers, Morningstar shows. In the past year, the fund has been near the top third.

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