Paradigm, Sequoia to Invest $1.15B in Citadel Securities, Bringing Trading Firm Closer to Crypto January 11, 2022 Business It’s the first outside investment for the electronic trading giant, which is now valued at roughly $22 billion. By Tanzeel Akhtar Jan 11, 2022 at 2:36 p.m. UTC Updated Jan 11, 2022 at 2:36 p.m. UTC Citadel Securities chairman Ken Griffin (Michael Kovac/Getty Images) Source Spread the love