Hologic Acquires Endomagnetics (Endomag) for About $310 Million

Hologic Acquires Gynesonics

January 6, 2025

Medical Devices

Hologic, Inc. completed its previously announced acquisition of Gynesonics, a privately held medical device company focused on minimally invasive solutions for women’s health, for about $350 million. Gynesonics develops the Sonata System for diagnostic intrauterine imaging and incision-less transcervical treatment of certain symptomatic uterine fibroids.

Hologic, Inc. Acquires Mobidiag Oy

June 17, 2021

Medical Devices

Hologic, Inc. has completed the acquisition of Mobidiag Oy, a Finnish developer of near‑patient molecular diagnostic instruments and tests, for approximately $808 million. The deal expands Hologic's diagnostics capabilities by adding Mobidiag's Amplidiag and Novodiag platforms for rapid, multiplexed acute‑care testing and broadens Hologic's global diagnostics footprint.

Hologic Going Private in $18.3 Billion Deal with Blackstone and TPG (Minority Investment from ADIA and GIC)

October 22, 2025

Medical Devices

Hologic, a women’s health company, entered into a definitive agreement to be acquired for an enterprise value of approximately $18.3 billion by funds managed by Blackstone and TPG. Under the terms, Hologic stockholders will receive $76 per share in cash plus a contingent value right worth up to an additional $3 per share tied to Breast Health revenue milestones.

Hologic Acquires Bolder Surgical for Approximately $160 Million

October 14, 2021

Healthcare Services

Hologic, Inc. has completed its previously announced acquisition of Bolder Surgical, a privately held U.S. provider of advanced energy vessel sealing surgical devices, for approximately $160 million. The deal expands Hologic’s surgical portfolio with laparoscopic vessel sealing, dividing and dissection tools and enables broader use of Bolder’s devices by OB/GYN specialists.

Haemonetics to Acquire Attune Medical

March 5, 2024

Healthcare Services

Haemonetics Corporation has entered into a definitive agreement to acquire privately held Attune Medical, the manufacturer of the ensoETM proactive esophageal cooling device used during RF cardiac ablation procedures. The deal calls for an upfront cash payment of $160 million at closing, plus additional contingent consideration tied to sales growth and other milestones, and is expected to close in Haemonetics’ fiscal first quarter of 2025.

Magnetic Holdings (Tinicum) Acquires Electron Energy Corporation

August 1, 2024

Manufacturing

Magnetic Holdings, a portfolio company backed by Tinicum, has acquired Electron Energy Corporation (EEC), a U.S. manufacturer of samarium‑cobalt and rare‑earth magnets. The Walmer family retained a significant minority stake and Michael Walmer joined Magnetic Holdings' board; financial terms were not disclosed. The deal creates a vertically integrated group of magnet businesses serving aerospace, defense, medical, semiconductor, energy, and industrial end markets.