Redeemable Convertible Preferred Stock and Stockholders’ Deficit

12 Months Ended

Dec. 31, 2018

Stockholders Equity Note [Abstract]

Redeemable Convertible Preferred Stock and Stockholders’ Deficit

9. Redeemable Convertible Preferred Stock and Stockholders’ Deficit

Preferred Stock

The Company issued Series 1 redeemable convertible preferred stock (“Series 1”), Series 2 redeemable preferred  stock  (“Series  2”),  Series  AA  redeemable  convertible  preferred  stock  (“Series AA”), Series B redeemable convertible preferred stock (“Series B”), Series C-1, Series C-2 redeemable convertible preferred stock (“Series C-2”), Series C-3 redeemable convertible preferred stock (“Series C-3”), and Series D (collectively, “PreferredStock”).Upon the closing of the IPO on October 22, 2018, all shares of Preferred Stock were automatically converted into an aggregate of 13,200,115 shares of common stock.

As of December 31, 2017, the authorized, issued, and outstanding shares of Preferred Stock and their carrying amounts and liquidation values were as follows:

			Shares Issued
	Shares		and		Carrying		Liquidation
	Authorized		Outstanding		Amount		Value
Series 1		132,255		132,255	$	522,266	$	526,778
Series 2		1		1		240,242		250,000
Series AA		575,470		573,961		7,615,583		7,619,998
Series B		6,382,259		6,251,502		60,366,480		60,379,282
Series C-1		4,524,375		2,174,280		20,888,972		20,999,997
Series C-2		916,095		—		—		—
Series C-3		790,895		—		—		—
Total		13,321,350		9,131,999	$	89,633,543	$	89,776,055

Conversion

All shares of Preferred Stock were automatically converted into an aggregate of 13,200,115 shares of common stock upon the closing of the IPO on October 22, 2018.