Hologic go-private close brings CEO transition
Steve MacMillan will step down after more than 12 years leading Hologic, as the company completes its acquisition by Blackstone and TPG.
Hologic Chairman, President, and CEO Stephen P. MacMillan will retire upon completion of the company’s go-private transaction with Blackstone and TPG. The transaction was expected to close on or about April 7 after all required regulatory approvals were received.
MacMillan joined Hologic in December 2013 and led the company for more than 12 years. During that period, Hologic said revenue increased 65%, share price rose 241%, and the company added more than 1,500 employees.
The acquisition by funds managed by Blackstone and TPG was completed April 7. Hologic’s common stock ceased trading and will be delisted from the Nasdaq Stock Market, according to the closing announcement.
Following the close, José “Joe” Almeida was appointed chairman and CEO of Hologic. Almeida previously served as chairman, president, and CEO of Baxter International and has more than 25 years of healthcare leadership experience, according to Blackstone and TPG.
The transaction was first announced on October 21, 2025, and approved by Hologic stockholders on February 5, 2026. Stockholders are set to receive $76 per share in cash plus a non-tradable contingent value right of up to $3 per share, for total potential consideration of up to $79 per share.
Hologic is headquartered in Marlborough, MA, and focuses on women’s health, including breast and skeletal health, diagnostics, and surgical products.
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Radiology Signal Staff covers developments across medical imaging, radiology AI, imaging informatics, clinical research, and radiology business. The team monitors primary sources, peer-reviewed studies, company announcements, society updates, and healthcare industry news to deliver concise reporting for imaging professionals.
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