That debut was priced ahead of the $19 to $21 range the company originally targeted for its initial public offering.
The company is a cloud-based platform that allows greater interaction between businesses and their software developers and operators using real-time data to help address issues.
"Technology infrastructure has expanded to include all software-enabled systems and devices, all generating billions of digital signals in the form of machine data, and all containing information that could impact the customer experience," PagerDuty said in its filing.
Unicorns are private tech companies with a valuation of $1 billion or more. PagerDuty is the third such company to go public this year after Lyft (LYFT) - Get Report debuted last month and Tradeweb Markets (TW) - Get Report debuted in April.