Management Co. V, L.L.C., which is the sole general partner of Polaris Venture Partners V, L.P., Polaris Venture Partners Founders’ Fund V, L.P., Polaris Venture Partners Special Founders’ Fund V, L.P. and Polaris Venture Partners Entrepreneurs’ Fund V, L.P. In addition, Michael J. Higgins is anEntrepreneur-in-Residence at Polaris. As of February 14, 2019, Polaris beneficially owns approximately 7.78% of our Company’s outstanding common stock. Dr. Steven Gillis is a Managing Director of and owns an interest in ARCH Venture Fund, a venture capital firm. As of February 14, 2019, ARCH Venture Fund beneficially owns approximately 5.63 % of our Company’s outstanding common stock.
Transactions with Related Persons
On April 3, 2018, we completed an underwritten public offering for a total of (i) 1,566,000 common units, with each common unit being comprised of one share of our common stock, one Series A Warrant to purchase one share of common stock and one Series B Warrant to purchase one share of common stock, and (ii) 784,000pre-funded units, with eachpre-funded unit being comprised ofone Pre-funded Warrant to purchase one share of common stock, one Series A Warrant and one Series B Warrant. The offering price to the public was $6.50 per common unit and $6.40 perpre-funded unit. The Series A Warrants included in the common units andthe pre-funded units were immediately exercisable at a price of $6.50 per share of common stock, subject to adjustment in certain circumstances, and expired six months from the date of issuance. The Series B Warrants included in the common units andthe pre-funded units are immediately exercisable at a price of $7.50 per share of common stock, subject to adjustment in certain circumstances, and will expire five years from the date of issuance.The pre-funded units were issued and sold to purchasers whose purchase of units in the offering would otherwise result in the purchaser, together with its affiliates and certain related parties, beneficially owning more than 4.99% (or, at the election of the purchaser, 9.99%) of our outstanding common stock immediately following the consummation of the offering, if the purchaser so chooses in lieu of common units that would otherwise result in the purchaser’s beneficial ownership exceeding 4.99% of our outstanding common stock (or at the election of the purchaser, 9.99%).Each Pre-Funded Warrant contained ina pre-funded unit is exercisable for one share of our common stock at an exercise price of $0.10 per share.The Pre-Funded Warrants are immediately exercisable and may be exercised at any time until all ofthe Pre-Funded Warrants are exercised in full.
The purchasers in the offering included the following related persons:
(1) Mark Iwicki, the chairman of our board of directors, purchased 30,700 units, for a purchase price of $199,550.
(2) PVP V, PVPEF V, PVPFF V, PVPSFF V, PVP IV and PVPEF IV purchased 76,999, 1,501, 528, 770, 34,556 and 648 common units, respectively, for an aggregate purchase price of $747,500. At the time of the underwritten public offering, Polaris funds beneficial owned more than 5% of our common stock. Mr. McGuire, our director, is one of the managing members of each of PVM IV and PVM V.
(3) ARCH Venture Fund VII purchased 115,000 common units for an aggregate purchase price of $747,500. At the time of the underwritten public offering, ARCH Venture Fund VII beneficial owned more than 5% of our common stock. Dr. Gillis, our director, owns an interest in ARCH Venture Fund VII.
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