JMC Investment Announces Sale of Millrock Technology to Artemis
New York, NY (September 23, 2025) — JMC Investment LLC (“JMC Investment”) is pleased to announce that it has sold its ownership of Millrock Technology Inc. (“Millrock” or the “Company”) to Artemis (the “Buyer”).
Millrock, based in Kingston, New York, is a leading designer and manufacturer of customized lyophilization (freeze-drying) equipment for the pharmaceutical, biotech, and diagnostic industries. JMC Investment first partnered with Millrock in 2020, when it invested alongside Intuitis and the management team.
Jean-Marie Painvin, the Founder & CEO of JMC Investment, commented, “Millrock represents another standout investment success for JMC in the healthcare sector. From the outset, our partnership with the leadership team focused on engineering excellence and customer impact. We are especially proud that Millrock’s technologies supported advanced therapies and played a vital role in the global COVID-19 vaccine manufacturing effort. The Company has achieved tremendous growth and value creation, and we are confident in its continued success.”
Sperry, Mitchell & Company acted as financial advisor to Millrock and JMC Investment, and Seward & Kissel LLP served as legal counsel.
About Millrock Technology
Millrock Technology Inc. is an innovator of freeze-drying (lyophilization) instrumentation and process development solutions for the pharmaceutical, biotech, and diagnostics industries. Millrock specializes in laboratory, pilot, and production-scale lyophilizers, with advanced process control technologies designed to optimize efficiency, compliance, and scalability. To learn more, please visit www.millrocktech.com.
About JMC Investment LLC
JMC Investment LLC is a New York–based single-family investment office that partners with small and medium-sized privately held growth companies. With a long-term outlook and an engaged partnership style, JMC focuses on manufacturing, aerospace, healthcare, and industrial services. The firm also has extensive experience in transatlantic transactions and in advising management teams. For more information, please visit www.jmcfamilyoffice.com.