https://www.nasdaq.com/article/network-solutions-provider-cambium-networks-files-for-a-75-million-ipo-cm1156066 Cambium Networks, which provides cloud-based wireless broadband network infrastructure solutions, filed on Wednesday with the SEC to raise up to $75 million in an initial public offering.  The Rolling Meadows, IL-based company was founded in 2011 and booked $251 …