About SunBird Bio
SunBird Bio is a private company based in Cambridge, Massachusetts. It has reported $90,787,301 raised in three offerings on Form D since August 2018. Its chief executive is Caroline Loew.
Funding Rounds (SEC Form D)
| First sale | Filed with SEC | Amount sold | Investors | Avg. check | Terms | Filing |
|---|---|---|---|---|---|---|
| Dec 2, 2021 | Dec 17, 2021 | $17,999,987fully sold | 12 | $1.4M | EquityRule 506(b) | Form D ↗ |
| May 29, 2020 | Jun 12, 2020amended Jul 1, 2021 | $46,699,979fully sold | 19 | $2.4M | EquityRule 506(b) | Form D/A ↗1 earlier filing |
| Jul 20, 2018 | Aug 6, 2018 | $26,087,335of $30.0M target | 17 | $1.5M | EquityRule 506(b) | Form D ↗ |
| Total, three offerings | $90,787,301 | |||||
First sale is the date the first investor in the offering committed to invest. Companies must file Form D within 15 days of that date, so filing dates run later.
Leadership Team
Executive officers and directors listed on SunBird Bio's Form D filed Dec 17, 2021.

Earlier filings also listed Yingmin Wang (director, last listed May 2023), John McDonough (director, last listed May 2023), Huilin Shao (director, last listed May 2023), Alexandra Cantley (director, last listed May 2023), Theresia Guow (director, last listed Aug 2018), Stan Lapidus (director, last listed Aug 2018), Sirshendu Banerjee (chief business officer, last listed Aug 2018) and Gabriel Kwong (executive officer, last listed Aug 2018).