Scott Knoll is stepping down as president and CEO of Integral Ad Science Inc.

The company has tapped former Yahoo executive Lisa Utzschneider to be its new CEO and board member, effective Jan. 7, 2019. Knoll will move into an advisory role for the company, according to a Dec. 12 news release.

Utzschneider previously served as chief revenue officer at Yahoo.

Integral Ad Science operates as a media valuation platform that enables digital buyers and sellers to assess the value of every advertising opportunity across channels and screens, and make informed decisions. Yahoo was renamed Altaba Inc. after Verizon Communications Inc. acquired its operating business.