Private deals
Some of the largest AI data center transactions never touch the stock market. These three show the kinds of buyers involved: infrastructure funds, a pension fund, an Abu Dhabi investor and a technology group.
Aligned Data Centers
About $40 billion enterprise value
Closed 21 July 2026
- Buyers
- AIP, MGX and BlackRock's Global Infrastructure Partners
- Sellers
- Infrastructure funds managed by Macquarie Asset Management and co-invest partners
100% of the equity, plus $5 billion of additional growth capital committed at closing.
Source: Aligned press release
AirTrunk
A$24 billion
Closed December 2024
- Buyers
- Blackstone-led consortium with CPP Investments
- Sellers
- Macquarie Asset Management and other investors, including PSP Investments
CPP Investments committed to a 12% stake. Blackstone described it as the largest data center deal ever at the time.
Source: Closing announcement, Canadian Lawyer
DigitalBridge
About US$3.1 billion for the common stock
Completed in 2026
- Buyers
- SoftBank Group
- Sellers
- Public shareholders of DigitalBridge Group
An alternative asset manager focused on digital infrastructure, announced in December 2025 at a headline of about $4 billion. The sources do not reconcile the two figures.
Source: w.media
This is a short selection of large transactions, not a complete list.