It had hired UBS and Canaccord Genuity as joint lead managers.
Calix had an $827 million market capitalisation at last close. It offers solutions in water treatment, crop protection, marine coatings, cathode and anode materials for batteries, and mineral and chemical processing.co-edits Street Talk, specialising in private equity, investment banking, M&A and equity capital markets. He has 10 years' experience as a business journalist and worked at PwC, auditing and advising financial services companies.