Three rounds of interviews, mostly behavioral questions. Response times were quick after each interview as the whole process took place within only a few weeks. When I got a verbal internship offer, it only took a day or two to get the letter in-writing.

Initial standard phone screening process. This was followed by two more casual online zoom interviews with associates and analysts on the team. Last stage was a superday style interview with approximately five people, some of whom I had spoken with already, within three back to back interview sessions.