Farmington-based Pluralsight went public in a very public way on Thursday — CEO Aaron Skonnard rang the opening bell at Nasdaq as Pluralsight began selling shares to investors.

This is a day I will always remember,” tweeted Skonnard, whose company teaches computer and coding skills through online courses.

Pluralsight’s stock is now listed as “PS” on the Nasdaq Global Select Market ticker. The company’s initial public offering of 20.7 million shares was offered at $15 a share; Pluralsight hopes to raise $310.5 million. It ended Thursday at a little more than $20 a share.

The Nasdaq tweeted the news enthusiastically:

“Today is a momentus day! @Pluralsight, the technology learning platform dedicated to helping CIOs and CTOs build skills at scale and innovate faster, joins the Nasdaq family! #PluralsightIPO”

Pluralsight’s courses are focused on tech only — cloud, mobile, security, big data and IT. It has more than 6,700 courses from more than 1,400 authors.