In a handwritten note to Pitchfork staff shared on Twitter, Kaskie said his decision to leave was “wholly my own.”
Kaskie said he joined Pitchfork as a “fresh-ish faced 23-year-old” and now is a “not-so-fresh-faced 37-year-old” who “grew up” with Pitchfork. In the note, he refers to staff multiple times as “family.”
Kaskie's last day at Pitchfork will be July 21, a week after Pitchfork wraps up its music festival in Chicago, where the media company is based.
"I plan to hang around through the festival, celebrating with you the music, friends, family and relishing in the achievement. After, that's when we'll part for real," he wrote.
Pitchfork was founded in 1995 as one of the first independent, online-only music publications to gain popularity. It has since expanded to include a quarterly print magazine, The Pitchfork Review.
Condé Nast bought the company in 2015. A year later, Condé Nast moved Pitchfork and its staffers from Brooklyn to One World Trade Center, where the publisher lives.
Separately, Megan Liberman, the editor-in-chief of Yahoo News, is also stepping down from her role this summer. She will leave the company after its merger with Verizon is completed, likely in the second quarter, which ends on June 30.
A Yahoo spokesperson told CNNMoney Liberman's decision to leave the company was her own. She was named editor-in-chief of Yahoo News in 2013. She was previously an editor at The New York Times.
Yahoo CEO Marissa Mayer is also expected to leave Yahoo at the close of the Verizon deal. She has been ranked the least likable CEO in tech, according to a new survey from Owler, a business insights site. Owler compiled rankings from its business professionals community and used an algorithm to analyze over 250,000 ratings.