Millstone Medical Outsourcing Acquires MycoScience

Millstone Medical Outsourcing Acquires Ethide Laboratories

November 14, 2022

Healthcare Services

Millstone Medical Outsourcing, an Arlington Capital Partners portfolio company, acquired Ethide Laboratories on November 14, 2022. The acquisition adds Ethide's regulatory testing capabilities (EO residual, microbiology, sterility, package integrity) to Millstone's post-manufacturing service offering, broadening testing services and customer footprint.

Arlington Capital Partners Acquires Millstone Medical Outsourcing

January 11, 2022

Medical Devices

Arlington Capital Partners, a Washington, DC-based private equity firm, has acquired Millstone Medical Outsourcing, a Fall River, Massachusetts-based provider of post-manufacturing, quality-critical services and supply chain logistics to medical device and pharmaceutical manufacturers. Selling shareholders included Schooner Capital; Arlington said it will provide strategic and capital support to accelerate Millstone's organic growth and pursue strategic acquisitions.

Turnstone Biologics Acquires Myst Therapeutics

January 20, 2021

Biotechnology

Turnstone Biologics Corp., a privately held clinical-stage biotechnology company, has acquired California-based Myst Therapeutics to integrate Myst’s tumor-infiltrating lymphocyte (TIL) selection and expansion platform into Turnstone’s oncolytic virus and cell therapy pipeline. The acquisition grants Turnstone full access to Myst’s R&D capabilities, development collaborations, and a TIL program with a lead candidate expected to enter the clinic soon; financial terms were not disclosed.

US BioTek Laboratories Acquires RealTime Laboratories

March 19, 2024

Healthcare Services

US BioTek Laboratories, a Pike Street Capital portfolio company, has acquired Dallas-based RealTime Laboratories to expand its diagnostic testing capabilities, specifically mycotoxin and infectious disease testing. The deal broadens the combined organization’s services and geographic footprint while both labs continue operating at their respective locations.

Artemis Capital Partners Acquires Millrock Technology

September 30, 2025

Medical Devices

Artemis Capital Partners, a Boston-based private equity firm, has acquired Millrock Technology Inc., a Kingston, New York manufacturer of lyophilization (freeze-drying) instrumentation and process development tools for the pharmaceutical, biotech, and diagnostics markets. Under Artemis’ ownership Millrock will continue to operate independently from its Kingston facility while Artemis invests to scale the company’s technical capabilities and global reach.

Fibronostics Acquires Stone Clinical Laboratories

October 27, 2025

Healthcare Services

Fibronostics has completed the acquisition of Stone Clinical Laboratories, LLC, expanding its U.S. laboratory infrastructure to accelerate innovation in non-invasive diagnostics for metabolic and liver diseases (MASH/MASLD). The deal strengthens Fibronostics' R&D and testing capabilities, combining Stone Clinical's laboratory expertise with Fibronostics' proprietary LIVERFASt platform to support biomarker development, clinical validation, and collaborations with biopharma and healthcare partners.