Stocks in uncertainty-riddled Diamond Foods rose on rumours that investor David Einhorn has acquired a stake in the firm.

Shares hit a high of US$34.28 on Friday (30 December), up from $29.32 the previous day, following a CNBC report that quoted sources claiming Einhorn, who founded hedge fund Greenlight Capital, had bought shares.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more

Spokespeople for Greenlight Capital and Diamond did not wish to comment on the rumours.

Diamond, which manufactures Emerald nuts and Kettle potato chips, has repeatedly hit the headlines over the past few months over an internal accounting probe into walnut payments, which has delayed its US$2.35bn acquisition of global snacks brand Pringles

Last month, the company admitted that it would miss a deadline to file its first-quarter results, leaving it open to censure from NASDAQ.

Soon after it announced the Stock Exchange Commission (SEC) had also begun to investigate the payments.

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData

Meanwhile there is still uncertainty surrounding the death of director Joseph Silveira in October. CNBC reported his death as a suicide and that Silveira, a member of the snack maker’s audit committee, had recused himself from the investigation. Diamond insisted his death was not linked to the probe.

Just Food Excellence Awards - Nominations Closed

Nominations are now closed for the Just Food Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact.

Excellence in Action
Winning five categories in the 2025 Just Food Excellence Awards, Centric Software is setting the pace for digital transformation in food and FMCG. Explore how its integrated PLM and PXM suite delivers faster launches, smarter compliance and data-driven growth for complex, multi-channel product portfolios.

Discover the Impact