Medline – a massive medical supply company based in Northfield – publicly filed paperwork Tuesday for a proposed initial public offering.

The registration statement filed with the U.S. Securities and Exchange Commission on Tuesday does not say how many shares will be sold or at what prices, but it is a step toward taking the company public.

Bloomberg previously reported that the company was seeking an initial public offering that would raise about $5 billion and value the company at as much as $50 billion. That could make it the biggest initial public filing in the U.S. this year, if it happens before Dec. 31, according to Bloomberg.

A spokesperson for Medline declined to comment Tuesday.

“Becoming a public company is a responsibility that we take seriously,” wrote CEO Jim Boyle in a n

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