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| Date | Company | Round | Lead Investor(s) | Co-Investor(s) |
|---|---|---|---|---|
| Apr 24, 2017 | Sienna Biopharmaceuticals | $40.0M Series B | ARCH Venture Partners, Venvest Capital | David Pyott, Altitude Life Science Ventures, Fidelity Management & Research Company, Omega Funds, Partner Fund Management |
| Jul 12, 2016 | Sienna Biopharmaceuticals | $12.0M Series A Extension | ARCH Venture Partners, Partner Fund Management | Altitude Life Science Ventures, Two River |
| Apr 28, 2016 | Sienna Biopharmaceuticals | $34.0M Series A | Kristina Burow | Altitude Life Science Ventures, Partner Fund Management |