The Big Law Free Agent Era rolled on in 2018. It was perhaps the busiest year for partner moves in the Am Law 100. More U.S.-based partners departed Am Law 100 firms in 2018 than in any year since 2013, according to data from ALM Intelligence.

That data equates to roughly 35 percent of all partner departures happening in the first quarter. But it's not all crickets after that. The second quarter saw 27 percent of all departures, while 23 percent occurred in the third quarter. About 14 percent of all departures since 2013 have occurred in the fourth quarter.