Fundraising Fox

Hologic

Acquired

3 known investors

Hologic develops medical technologies for women's health across all life stages, serving healthcare professionals and patients globally. The company focuses on diagnostic and therapeutic solutions with a commitment to advancing clinical outcomes and increasing women's access to healthcare.

Also known as Hologic, Inc. Β· HOLX

Investors Β· 3

Company profile

researched Aug 2026

Hologic, Inc. is an American medical technology company primarily focused on women's health, selling medical devices for diagnostics, surgery and medical imaging. Its portfolio spans breast health and mammography systems, cervical cancer screening (the ThinPrep Pap test), endometrial ablation (NovaSure), molecular diagnostics, breast biopsy devices and breast cancer prognostic testing such as the Breast Cancer Index test. The company describes its mission as developing medical technologies that detect, diagnose and treat health conditions and raise the standard of care globally.

Hologic is headquartered in Marlborough, Massachusetts, with additional locations including a satellite office in Santa Clara, California. Key people include Stephen P. MacMillan (Chairman, President and CEO), Karleen Marie Oberton (CFO) and co-founder Jay A. Stein (Chairman-Emeritus, CTO and SVP). The company reported fiscal 2025 revenue of $4.10 billion, operating income of $714 million, net income of $566 million, total assets of $9.01 billion and 7,070 employees. Its own site cites operations in 36 countries, more than 4,100 patents and approximately 7,000 employees.

After trading on Nasdaq under the ticker HOLX, Hologic was taken private by Blackstone and TPG in a transaction announced in October 2025 at approximately $79 per share and valued at $18.3 billion including debt; the deal closed on April 7, 2026. Endomag is listed among its subsidiaries.

Traction

Fiscal 2025 revenue of $4.10 billion, operating income of $714 million and net income of $566 million, with total assets of $9.01 billion, total equity of $5.05 billion and 7,070 employees. In a January 2026 SEC filing the company said it expects approximately $1.703 billion in unlevered free cash flow between 2026 and 2035 based on Goldman Sachs forecasts, held approximately $300 million in net debt as of September, and projected earnings per share of roughly $4.81, $5.25 and $5.85 in 2027, 2028 and 2029.

Latest developments

In October 2025 Blackstone and TPG agreed to acquire Hologic for approximately $79 per share, valuing the company at $18.3 billion including debt; the board unanimously approved the merger agreement and the deal closed on April 7, 2026, taking the company private. In January 2026 investors filed a class action seeking to block the transaction, alleging Hologic omitted key deal information from public disclosures in violation of New York law; the company said the allegations are without merit. The same SEC filing disclosed that a November stop-ship order and subsequent voluntary recall of Brevera 9 Gauge Needles β€” about 5% of breast health revenue in fiscal 2025 β€” is expected to adversely affect sales for an extended period, and that a class action related to the BioZorb implantable breast device had reached a settlement covered by insurance. Hologic also announced plans to present new data at ASCO 2026 on the clinical impact of the Breast Cancer Index test on extended endocrine therapy decisions.

β–ΈFull profile β€” market position, technology, go-to-market, geography, history, risks & controversies

Market position

Hologic is described as a global leader in women's health and a breast imaging and mammography systems vendor. Its take-private transaction was reported to be the largest medical devices deal in almost two decades, since Boston Scientific's $27 billion purchase of Guidant Corp in 2006.

Technology

Medical devices and tests spanning diagnostics, surgery and medical imaging, including mammography and contrast-enhanced mammography, the ThinPrep Pap test for cervical cancer screening, NovaSure endometrial ablation, breast biopsy needles (Brevera), the BioZorb implantable breast device, molecular diagnostics including multiplex technology from Mobidiag and SARS-CoV-2 assays, the Breast Cancer Index test, and the Gynesonics Sonata System, an ultrasound imaging device for uterine fibroids. The company reports holding more than 4,100 patents.

Go-to-market

Direct sales representatives and dealers, an online ordering portal for consumables (iStore), medical education and training curricula, and patient-directed materials. The company has also pursued brand partnerships, becoming title sponsor of the WTA Tour and official health partner of the Women's Tennis Association in March 2022.

Healthcare professionals and providers treating women patients, including breast imaging, diagnostics and surgical settings; the company also maintains patient-facing materials and a medical education program.

Geography

Headquartered in Marlborough, Massachusetts, with a satellite office in Santa Clara, California, and operations across 36 countries. COVID-19 test manufacturing expansion covered facilities in Wisconsin, Maine and California, and the company has collaborated in Spain and acquired companies in the UK (Endomag), Germany (SOMATEX) and Finland (Mobidiag).

History

Hologic was founded in 1985. It completed the acquisition of Cytyc Corporation on October 22, 2007 in a cash-and-stock transaction valued at approximately $6.2 billion, adding the ThinPrep Pap test and NovaSure endometrial ablation technology. It acquired Gen-Probe in 2012. In late November 2013, activist investor Carl Icahn disclosed a 12.5% stake, prompting the company to adopt a poison pill and to add two Icahn-backed directors; those nominees resigned on March 3, 2016 and Icahn exited his position by May 16, 2016. Hologic bought Westford, Massachusetts-based aesthetic medicine company Cynosure for $1.65 billion in 2017, then divested it to Clayton, Dubilier & Rice for $205 million, announced November 20, 2019 and completed December 30, 2019. During the COVID-19 pandemic the company obtained FDA emergency use authorizations for SARS-CoV-2 tests in March and May 2020, collaborated with Grifols to expand testing in Spain, and won a $119 million U.S. government contract in November 2020 to expand test manufacturing. Subsequent deals included Biotheranostics ($230 million) and SOMATEX ($64 million) in January 2021, Mobidiag ($795 million, announced April 2021 and completed June 2021), Endomag ($310 million, agreed April 2024 and completed July 2024) and Gynesonics ($350 million) in 2025.

Risks & controversies

A shareholder class action filed in January 2026 sought to block the Blackstone/TPG acquisition over allegedly incomplete merger disclosures. A stop-ship order in November followed by a voluntary recall of Brevera 9 Gauge biopsy needles is expected to hurt sales for an extended period; the product line represented roughly 5% of breast health revenue in fiscal 2025. A separate class action over the BioZorb implantable breast device reached a settlement expected to be covered by insurance. Earlier, the 2017 Cynosure acquisition for $1.65 billion was divested in 2019 for $205 million, and the company faced an activist campaign by Carl Icahn beginning in 2013 that led to a poison pill and board changes.

Compiled by commissioned research from 8 cited public sources β€” announcements, filings, and press listed under research sources below.

Key figures

latest reported
Acquisition price per shareOct 2025$79
Countries of operationJan 202636
EmployeesJan 20257,070 people
Net debtSep 2025$300M
Net incomeJan 2025$566M
Operating incomeJan 2025$714M
PatentsJan 20264,100 patents
Projected eps 2027Jan 2026$4.81
Projected eps 2028Jan 2026$5.25
Projected eps 2029Jan 2026$5.85
Projected unlevered free cash flow 2026 2035Jan 2026$1.7B
RevenueJan 2025$4.1B
Total assetsJan 2025$9B
Total equityJan 2025$5B

Company-reported or press-reported figures, each dated to when it was claimed β€” not independently audited.

Founder mafia

2 people who came through Hologic went on to found or lead other companies.

Timeline Β· 19

launches, deals, and filings
Apr 2026
Hologic becomes a private company following acquisition by Blackstone and TPG

source β†—

Jan 2026
Shareholder class action filed to block the $18.3 billion acquisition

Plaintiffs allege Hologic omitted key deal information from public disclosures in violation of New York law; the company said the allegations are without merit and issued supplemental disclosures in an SEC filing. A separate BioZorb class action reached a settlement expected to be covered by insurance.

source β†—

Nov 2025
Stop-ship order and voluntary recall of Brevera 9 Gauge Needles

Sales expected to be adversely impacted for an extended period; the biopsy devices accounted for about 5% of Hologic's breast health revenue in fiscal 2025.

source β†—

Oct 2025
Blackstone and TPG agree to take Hologic private for $18.3 billion

Announced deal at approximately $79 per share, valuing the company at $18.3 billion including debt; reported as the largest medical devices deal since Boston Scientific's $27 billion purchase of Guidant in 2006. Board granted unanimous approval.

$18.3B source β†—

Jan 2025
Hologic acquires Gynesonics for $350 million

Developer of the Sonata System, an ultrasound imaging device for uterine fibroids.

$350M source β†—

Apr 2024
Hologic agrees to acquire Endomag for $310 million

British medical device manufacturer; acquisition completed in July 2024.

$310M source β†—

Mar 2022
Hologic becomes title sponsor of the WTA Tour

Named 'official health partner' of the Women's Tennis Association as part of the sponsorship.

source β†—

Apr 2021
Hologic announces acquisition of Mobidiag for $795 million

Molecular diagnostics firm with multiplex technology; acquisition completed in June 2021.

$795M source β†—

Jan 2021
Hologic acquires Biotheranostics for $230 million

Added a breast and metastatic cancer test portfolio.

$230M source β†—

Jan 2021
Hologic acquires SOMATEX for $64 million

$64M source β†—

Nov 2020
$119 million U.S. government contract to expand COVID-19 test production

Contract from the U.S. Department of Health and Human Services and Department of Defense to expand production facilities in Wisconsin, Maine and California, targeting 13 million COVID tests per month by January 2022.

$119M source β†—

Jun 2020
Collaboration with Grifols to expand COVID-19 testing capacity in Spain

source β†—

May 2020
Second FDA emergency use authorization for 2019-nCoV test

Second EUA granted to increase potential testing throughput.

source β†—

Mar 2020
FDA emergency use authorization for SARS-CoV-2 test

source β†—

Nov 2019
Hologic announces divestment of Cynosure to Clayton, Dubilier & Rice for $205 million

Divestiture completed December 30, 2019; Cynosure had around 825 employees at the time.

$205M source β†—

Jan 2017
Hologic acquires Cynosure for $1.65 billion

Acquisition of Westford, Massachusetts-based aesthetic medicine company Cynosure.

$1.6B source β†—

Nov 2013
Carl Icahn discloses 12.5% stake; company adopts poison pill

Activist investor Carl Icahn disclosed a 12.5% stake; Hologic adopted a poison pill and added two Icahn-backed directors to its board. Icahn's nominees resigned March 3, 2016 and he exited the position by May 16, 2016.

source β†—

Jan 2012
Hologic acquires Gen-Probe Incorporated

source β†—

Oct 2007
Hologic completes acquisition of Cytyc Corporation

Cash-and-stock transaction valued at approximately $6.2 billion, adding the ThinPrep Pap test, NovaSure endometrial ablation and related diagnostic and imaging capabilities.

$6.2B source β†—

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

In the news

β–ΈResearch sources Β· 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Hologic do?
American medical technology company focused on women's health, selling diagnostics, surgical and medical imaging products.
Who are Hologic's investors?
Hologic's investors include Ascent Venture Partners, Blackstone, TPG.