Tyler Le, Jenny Chang-Rodriguez/Insider
- Caroline Ellison was the CEO of Alameda Research, a trading firm launched by Sam Bankman-Fried.
- She oversaw bets Alameda took with customer funds. She pleaded guilty to seven criminal counts.
- She'll testify in Bankman-Fried's criminal trial this week. Here is her background story.
As Sam Bankman-Fried's crypto empire began to unravel last year, his colleague, now 28-year-old Caroline Ellison, emerged as a figure of intrigue and speculation.