MEMX has raised $135M in total funding. Backed by BlackRock, Citadel Securities, Morgan Stanley.
MEMX has raised $135M in total disclosed funding. That places its disclosed total in the $100M–$250M range. The round record for MEMX runs through 2021; nothing later has been disclosed. Investors on record include BlackRock, Citadel Securities, Morgan Stanley, Optiver. 4 distinct backers are named across the disclosed rounds.
Every MEMX figure above comes from filings and announced rounds in the StartupFundraising company database and is revised as new rounds are recorded. The lists below compare companies at a similar stage.
Company funding database · Investor directory · Founder database · Mega-rounds 2026