By Brazil Stock Guide – IRB-Brasil Resseguros (IRBR3) is trying to close one of the most damaging chapters in Brazil’s recent capital-markets history. The reinsurer said on Monday that it had completed all obligations under its agreement with the U.S. Department of Justice, related to false information about its shareholder base that was disseminated in the United States between February and March 2020. The non-prosecution agreement, signed in April 2023, required IRB to make $5 million available as compensation and to strengthen internal controls, governance and compliance practices.
A false signal
The episode was not a minor communication mistake. In 2020, IRB became engulfed in crisis after the market was led to believe that Berkshire Hathaway, Warren Buffett’s investment vehicle, had become a shareholder in the Brazilian reinsurer. For a company already under pressure, the supposed presence of Buffett carried obvious symbolic value. It suggested that one of the world’s most respected investors had seen value where others saw risk.
That was false. Berkshire Hathaway publicly denied the story, saying it was not an IRB shareholder, had never been one and had no intention of becoming one. The denial transformed a market rumor into a governance scandal.
Pressure from Squadra
The timing made the episode even more explosive. IRB’s shares had already been under pressure after Squadra, a Brazilian asset manager, questioned the quality of the company’s numbers and disclosed a short position against the stock. The criticism raised doubts about the sustainability of IRB’s reported earnings and put management on the defensive. According to the Justice Department, the alleged fraud scheme began after an investment firm published a report questioning the accuracy of IRB’s financial statements and after the company’s stock price fell.
The false Berkshire story therefore served a clear market purpose: to restore confidence at a moment when confidence was collapsing. The Justice Department later said IRB’s former CFO, Fernando Passos, together with other IRB employees, misled investors about Berkshire Hathaway’s purported investment in the company. When the scheme was revealed, IRB’s share price dropped sharply, causing tens of millions of dollars in shareholder losses.
Management falls
The crisis also brought down IRB’s leadership. José Carlos Cardoso, then chief executive officer, and Fernando Passos, then chief financial and investor relations officer, left the company in March 2020. The case later became the subject of proceedings in Brazil and the United States, turning what began as a credibility dispute with a short seller into one of the most visible corporate-governance failures in the Brazilian market. CVM documents cited both José Carlos Cardoso and Fernando Passos in connection with the irregular communication that Berkshire Hathaway was a shareholder when that stake did not exist.
For investors, the lesson was brutal. A famous name can support a share price for a few days. A false famous name can destroy trust for years.
The legal closure
IRB now says the U.S. chapter is over. In its statement, the company said the current management began a financial and organizational restructuring process after taking over, fulfilled all obligations under the non-prosecution agreement, carried out periodic reporting, cooperated with U.S. authorities and implemented improvements in controls, governance and compliance.
That matters. The conclusion of the agreement removes a legal overhang and allows IRB to argue that the company of today is no longer the company of the Buffett scandal. But reputational damage in capital markets is not settled only by agreements. It is settled over time, through numbers, governance and repeated proof that the old culture is gone.
Trust, not paperwork
The irony is that reinsurance is a business built on trust. Clients pay premiums today for protection against losses tomorrow. Investors, in turn, rely on management’s ability to assess risk, price uncertainty and report results with discipline.





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