2017.04.11, 中华开发, 北极光创投, 挚信资本, Susquehanna Growth Equity（SIG）, 张涛
2016.01.19, SIG海纳亚洲, 挚信资本, 唯猎资本, 玖创资本
2015.02.01, 挚信资本
Note: collected from public online reports, for reference only.
