The £14.3 billion agreement announced on 4 August creates the world's largest logistics platform and removes London's biggest REIT from the market. The premium paid says something broader about the gap between share prices and property values.
On 4 August, Prologis and Segro announced final terms for an offer valuing each Segro share at 1,031.7 pence, or roughly £14 billion in aggregate. Including the dividends the British company intends to pay before completion, the maximum value rises to £14.3 billion, about €16.3 billion. It was the fourth approach; the Segro board had rejected three earlier ones, the last of them worth around £13.5 billion.
Consideration is mainly in shares, at 0.0920 new Prologis shares per Segro share, with a partial cash alternative of up to £3.5 billion, or 25% of total value. Shareholders electing cash receive 258 pence plus 0.0690 shares; those staying in paper end up with roughly 8.9% of the combined group. The cash component is funded through a committed term loan and existing liquidity, and Prologis expects to retain its A2/A ratings from Moody's and S&P.
The scale of the resulting platform
The combined business will hold approximately $269 billion in assets under management. In Europe the operating portfolio reaches 34.2 million square metres, a 47% increase on Prologis's current continental footprint, while the development pipeline rises to 1.21 million square metres and the European land bank grows by 126%. Completion is expected in the first half of 2027, subject to a Segro shareholder vote and antitrust clearances, with France and Germany the jurisdictions where the two portfolios overlap most heavily.
The strategic rationale looks past warehousing. Segro's chief executive David Sleath tied the transaction to the structural drivers behind demand for modern logistics and data centre infrastructure, a segment Segro has been building at Slough for years. The convergence of warehousing, power and digital infrastructure is where the largest operators are now redrawing the boundaries of the asset class.
What the premium reveals
The instructive figure is not the headline number but how it breaks down. The offer represents a 42% premium to Segro's close on 23 June, the day before Prologis went public with its interest, and a premium of between 14% and 17% to EPRA NTA. Before the approach, in other words, the market valued Segro's equity roughly a fifth below the underlying value of the buildings.
That discount has been the fuel behind listed European real estate M&A for the past two years. When the cost of equity stays above the implied yield on assets, buying an existing portfolio is more efficient than developing one. A bidder with cheap debt and broad market access can pay above NAV and still come out ahead of what it would cost to assemble the same footprint from scratch, over timeframes measured in years. Institutional holders including APG, Norges Bank and CCLA pushed the Segro board towards the table, which says something about how heavily that discount weighed on long-term shareholders.
Implications for the Italian market
Both companies are active in Italy. At the end of 2024 Prologis owned and managed roughly 1.79 million square metres across 115 buildings in Milan and its metropolitan area, the Bologna Interporto and Rome, with secondary positions in Parma, Treviso, Naples, Lecce and Caltanissetta, plus 55 hectares of development land. Italian occupancy stood at 99.6%, above the group's global average, with rents up 18.6% on the year.
Ownership concentration on this scale changes the negotiating geometry. Occupiers face fewer alternative counterparties in the core markets, at a time when Grade A supply remains structurally tight. Investors face a larger competitor in bid processes and, simultaneously, a potential seller of non-core portfolios once antitrust authorities require remedies. That window is worth watching over the next eighteen months.
There is also a capital markets effect. London loses its largest REIT, and the number of large independent listed property owners in Europe shrinks again. Prologis has said it will seek a secondary listing in London, which softens the shift without reversing it: European property at scale keeps migrating towards vehicles whose decisions are made elsewhere.