Sainsbury’s has ended preliminary merger discussions with rival supermarket Morrisons after several months of talks earlier this year, according to multiple reports. The two companies explored a potential combination between November 2025 and February 2026, but currently no active negotiations are ongoing, although a resumption of talks has not been ruled out.

A merger between Sainsbury’s, the second-largest grocery retailer in the UK with a 15.2% market share, and Morrisons, the fifth-largest with around 8.3%, would have created a new industry contender holding about 23.6% of the grocery market. This would have narrowed the gap with market leader Tesco, which has a 27.8% share. However, the potential deal raised concerns over reduced competition, especially given the UK’s current regulatory landscape and the history of similar deals facing scrutiny.

In 2019, the Competition and Markets Authority (CMA) blocked Sainsbury’s £7.3 billion bid to acquire Asda, citing worries that the deal would limit competition and lead to higher prices for consumers. Analysts expect any attempt to merge Sainsbury’s and Morrisons would undergo rigorous examination by regulators and may require store divestments to secure approval. The political sensitivity surrounding grocery mergers has increased amid ongoing food inflation that has impacted households across the country.

Morrisons has faced operational challenges since its acquisition by US private equity firm Clayton, Dubilier & Rice in 2021 for approximately £10 billion, including a significant debt burden of around £7.5 billion. The company’s market share has declined, with German discount retailers Aldi and Lidl steadily increasing their presence to nearly 20% combined—a factor that could influence regulatory decisions on consolidation. Lidl recently surpassed Morrisons in market share, highlighting the ongoing shift in the UK grocery sector.

Sainsbury’s, under CEO Simon Roberts, has been refocusing its business on core food retail, evidenced by its recent agreement to sell the Argos general merchandise chain for about £120 million, a fraction of the original £1.4 billion purchase price. The company operates over 600 supermarkets and nearly 900 convenience stores, employing around 140,000 people. Morrisons runs approximately 500 supermarkets and more than 1,700 convenience outlets, employing about 96,000 staff.

Despite the halt in talks, Morrisons’ private equity owner has reportedly remained open to potential merger opportunities, including with other major grocers like Asda. Competition within the sector continues to intensify, particularly with discounters playing an increasingly significant role, reshaping the competitive dynamics.

Both Sainsbury’s and Morrisons declined to comment on the merger discussions. Following reports of the talks ending, Sainsbury’s shares remained broadly stable in trading.