Federal prosecutors say a tight network of insiders quietly worked the mergers-and-acquisitions market for years, and on Wednesday they pulled back the curtain. Indictments unsealed in federal court charge 30 people in what authorities describe as a sprawling, decade-long insider trading operation that allegedly siphoned tens of millions of dollars from nearly 30 public deals. Prosecutors point to high-profile transactions, including Amazon’s 2022 proposal to buy iRobot, as examples of the trades at issue.
Nineteen defendants were arrested when the indictments were unsealed and two others are considered fugitives, according to Reuters. The charges were lodged in two separate indictments that name corporate lawyers and financial professionals who prosecutors say misappropriated material nonpublic information. The arrests and unsealing were coordinated across multiple federal districts and involved cooperation with the FBI and the SEC.
How prosecutors say the scheme worked
As outlined in an indictment made public Wednesday by the U.S. Department of Justice, conspirators allegedly accessed major law firms’ document management systems to view confidential deal documents, then sold that material nonpublic information to traders for cash kickbacks. Prosecutors say the network used burner phones, encrypted apps and coded language to conceal who had the tips, and that illicit proceeds were routed through shell companies and foreign accounts.
The indictment also includes a timeline that, according to prosecutors, shows an alleged tip about the iRobot Amazon deal being accessed in June 2022, followed by related trades weeks later. Authorities say that pattern repeated across numerous transactions as the ring quietly piggybacked on sensitive corporate moves.
Who prosecutors say played key roles
Authorities identified Nicolo Nourafchan, a 43-year-old corporate attorney based in Los Angeles, as a central figure who recruited other lawyers and funneled tips to a network of middlemen and traders, according to Local 10. The unsealed charging documents list dozens of alleged co-conspirators across California, Florida, New Jersey and New York, and name a mix of U.S. residents and foreign nationals.
Prosecutors say some participants were paid up to hundreds of thousands of dollars in cash for inside information, and that trades were executed in accounts designed to hide the true beneficiaries. On paper, it looked like ordinary investing. Investigators allege it was a carefully layered pipeline of tips and payouts.
Legal consequences and next steps
Defendants face counts including securities fraud, money laundering conspiracy and obstruction of justice that carry potential decades in prison and fines tied to illicit gains, according to a statement from the U.S. Attorney's Office, District of Massachusetts. "Our country's financial markets and professional firms should be free from the rampant fraud and breaches of duty that these charges allege," U.S. Attorney Leah B. Foley said in the statement.
The indictments are allegations and the defendants are presumed innocent. Many of those arrested are scheduled to appear in federal courts in Los Angeles, Fort Lauderdale and New York as the cases begin to move through the system.
Why prosecutors say this matters
Prosecutors are framing the case as a direct hit on the trust that underpins public capital markets, arguing the alleged scheme tilted the playing field toward the connected and away from ordinary investors. The investigation remains active and could lead to additional unseals or charges as authorities trace payments and trading profits across domestic and international accounts.
For now, the case is already renewing scrutiny on law firm cybersecurity and internal controls for handling sensitive M&A materials. In an industry built on confidentiality, the government is plainly signaling that how firms protect their files is no longer a back-office concern, but front-page business.
