A unit of the Abu Dhabi Investment Authority (ADIA) is joining private equity firms Blackstone and TPG in an $18.3 billion acquisition of the US medical diagnostics company Hologic.
According to Hologic, ADIA’s wholly owned subsidiary will contribute a “substantial minority investment” as part of the deal.
The specific value of ADIA’s investment has not been publicly revealed.
A related entity of Singapore’s sovereign wealth fund, GIC, is also participating with a “substantial minority investment.”
Hologic stated that the total acquisition price reflects a 46% premium over its closing share price on May 23, 2025.
Once the deal is finalised, Hologic’s shares will be removed from Nasdaq, but the company will retain its Marlborough, Massachusetts headquarters and continue operating under the Hologic brand.
The transaction is anticipated to conclude in the first half of 2026, pending regulatory clearance.
The statement also noted that Hologic will release its fiscal 2025 fourth-quarter financial results on November 3.
For context, ADIA recently joined a $1.6 billion investment in a US data centre operator, has shifted towards a more data-driven strategy for its $1 trillion fund, and retained stakes in a US LNG projects developer. In August, both ADIA and GIC were approached by French buyout firm PAI Partners about a potential joint bid for the division, according to Bloomberg.
In July, the $1 trillion Abu Dhabi fund announced plans to acquire a minority stake worth $200 million in the Indian medical devices firm Micro Life Sciences.
Established in 1976, the fund invests on behalf of the Abu Dhabi government and is chaired by Sheikh Tahnoun bin Zayed Al Nahyan, the UAE president’s brother, who also serves as deputy ruler of Abu Dhabi and the nation’s national security adviser.
