There were no press releases announcing Kathleen Sullivan’s retirement from Quinn Emanuel Urquhart & Sullivan. But it’s hard to walk away without anyone noticing when you’re the only woman-name partner in the Am Law 100—especially under these circumstances.

The Second Circuit this week handed Sullivan and her partners Todd Anten and Owen Roberts a win in a long-running case they’ve been handling for video-sharing client Vimeo. The case has been running for a decade and a half of Sullivan’s 20 years at the firm. The appellate court, taking up an appeal in the case for a second time, found that Vimeo was entitled to safe harbor under the Digital Millennium Copyright Act from claims from music rightsholders over songs included in videos uploaded to the site. The appellate court found that plaintiffs hadn’t shown Vimeo had “red flag” knowledge of infringement since the songs’ inclusion use could be a fair use or licensed.