This document summarizes statistics on IPv4 address transfers seen by an IPv4 broker. It discusses IPv4 transfer policies and statistics for several regional internet registries (RIRs) including APNIC, ARIN, and RIPE NCC. Key points include a steady increase in the number of IPv4 address transfers and prefixes transferred each year. Over 5 million IPv4 addresses were transferred in the first half of 2015 alone. The document also provides lessons learned from brokering IPv4 transfers.