REDEEMABLE CONVERTIBLE PREFERRED STOCK

12 Months Ended

Dec. 31, 2020

Temporary Equity Disclosure [Abstract]

Upon the consummation of our IPO in 2018, all of the outstanding shares of redeemable convertible preferred stock were automatically converted into shares of common stock. Refer to Note 1—Nature of Operations for additional information regarding our IPO.

A summary of the change in carrying amount of the outstanding redeemable convertible preferred stock is as follows (in thousands):


	Series G’ Stock			Series G Stock
	Shares	Amount		Shares	Amount
Balance — December 31, 2017	1,296	$	44,672	346	$	5,110
Accretion of redeemable convertible preferred stock	—	—		—	108
Conversion of preferred stock to common stock	(1,296)	(44,672)		(346)	(5,218)
Balance — December 31, 2018	—	$	—	—	$	—


	Series F-R Stock			Series E-R Stock			Series D-R Stock
	Shares	Amount		Shares	Amount		Shares	Amount
Balance — December 31, 2017	1,199	58,449		795	$	29,972	1,396	$	32,728
Accretion of redeemable convertible preferred stock	—	38		—	1		—	7
Conversion of preferred stock to common stock	(1,199)	(58,487)		(795)	(29,973)		(1,396)	(32,735)
Balance — December 31, 2018	—	$	—	—	$	—	—	$	—


	Series C-R Stock			Series B-R Stock			Series A-R Stock
	Shares	Amount		Shares	Amount		Shares	Amount
Balance — December 31, 2017	1,508	$	18,366	2,247	$	5,288	1,857	$	1,852
Accretion of redeemable convertible preferred stock	—	3		—	—		—	—
Conversion of preferred stock to common stock	(1,508)	(18,369)		(2,247)	(5,288)		(1,857)	(1,852)
Balance — December 31, 2018	—	$	—	—	$	—	—	$	—

Common Stock Warrants Issued in Connection with the Series G Stock Financing

In connection with the Series G Stock financing in May 2017, we issued warrants to purchase an aggregate number of shares of common stock equal to the product obtained by multiplying 346,334 by a fraction, the numerator of which is the difference between $68.9516 and the volume weighted average closing price of our common stock over the 30 trading days (or such lesser number of days as our common stock has been traded on the Nasdaq Global Market) prior to the date on which such warrants vest and become exercisable and the denominator of which is such volume weighted average closing price, which warrants vested and became exercisable on August 8, 2018, which was 180 days following the date of our IPO, at an exercise price of $0.0004 per share. In August 2018, we issued warrants to purchase 792,434 shares of common stock at an exercise price of $0.0004 per share to the cash investors of our Series G financing, pursuant to our Series G stock purchase agreement. The warrants had a valuation of $15.3 million upon issuance and were immediately exercised. Refer to Note 12—Fair Value Measurements for additional information regarding the valuation of the warrants issued in connection with the Series G Stock financing.

Redemption

At any time on or after May 4, 2022, upon written request of the holders of not less than 66 2/3% of the shares of redeemable convertible preferred stock then-outstanding, voting together as a single class on an as-converted to common stock basis, we were required to redeem all outstanding shares of redeemable convertible preferred stock in eight quarterly installments. The Series A-R Stock, Series B-R Stock, Series C-R Stock, Series D-R Stock, Series E-R Stock, Series F-R Stock, Series G Stock and Series G’ Stock were redeemable at prices equal to $1.00, $2.3567, $12.2686, $23.64, $37.7344, $58.40, $34.4758 and $34.4758 per share, plus any declared or accumulated but unpaid dividends, respectively.

To the extent that we had insufficient funds to redeem all outstanding shares of redeemable convertible preferred stock, we were required to first redeem shares of Series G Stock and Series G’ Stock, then shares of Series F-R Stock, then shares of Series E-R Stock, then shares of Series D-R Stock, then shares of Series C-R Stock and then shares of Series B-R Stock and Series A-R Stock pari passu, in each case on a pro rata basis among the holders thereof.

The redeemable convertible preferred stock carrying amount was increased by periodic accretions, using the interest method, so that the carrying amount would equal the redemption amount at May 4, 2022. Accretion was recorded through a charge against additional paid-in capital.

Liquidation

Upon us (i) selling or otherwise disposing of all or substantially all of our property or business or merging with or into or consolidation with any other corporation, limited liability company or other entity, (ii) a majority of the voting power of our outstanding capital stock being transferred or disposed of as a result of a transaction or series of related transactions that are not issuances of capital stock by us primarily for the purposes of raising equity capital or (iii) any dissolution or winding-up of our business, the holders of Series A-R Stock, Series B-R Stock, Series C-R Stock, Series D-R Stock, Series E-R Stock, Series F-R Stock, Series G Stock and Series G’ Stock were entitled to receive payments in amounts per share equaling $1.00, $2.3567, $21.4701, $23.64, $37.7344, $58.40, $68.9516, and $34.4758, plus any declared but unpaid dividends, respectively. Holders of Series G Stock and Series G’ Stock are pari passu and were to be paid prior, and in preference to, any distribution of assets to the holders of all other classes of capital stock. Holders of Series F-R Stock were to be paid prior, and in preference to, any distribution of assets to the holders of Series E-R Stock, Series D-R Stock, Series C-R Stock, Series B-R Stock and Series A-R Stock. Holders of Series E-R Stock were to be paid prior, and in preference to, any distribution of assets to the holders of Series D-R Stock, Series C-R Stock, Series B-R Stock and Series A-R Stock. Holders of Series D-R Stock were to be paid prior, and in preference to, any distribution of assets to the holders of Series C-R Stock, Series B-R Stock and Series A-R Stock. Holders of Series C-R Stock were to be paid prior, and in preference to, any distribution of assets to the holders of Series B-R Stock and Series A-R Stock. Holders of Series A-R Stock and Series B-R Stock are pari passu and were to be paid prior, and in preference to, any distribution of assets to the holders of common stock.

Upon completion of the distributions detailed above, any remaining assets were to be distributed to the holders of common stock, Series A-R Stock, Series B-R Stock, Series C-R Stock, Series D-R Stock, Series E-R Stock, Series F-R Stock, Series G Stock and Series G’ Stock; such participation in the distribution of remaining assets would cease, however, when the amount that the holders of Series A-R Stock, Series B-R Stock, Series C-R Stock, Series D-R Stock, Series E-R Stock, Series F-R Stock, Series G Stock and Series G’ Stock were entitled to receive upon liquidation equals $2.00 per share, $4.7134 per share, $36.8058 per share, $70.92 per share, $113.2032 per share, $175.20 per share, $103.4274 per share and $103.4274 per share, respectively, plus any declared but unpaid dividends thereon.

If, however, as a result of a conversion from redeemable convertible preferred stock to common stock, a holder would receive, in the aggregate, an amount greater than the amount that would be distributed to such holder if such holder did not convert such series of redeemable convertible preferred stock into shares of common stock, such holder would have been deemed to have converted such holder’s shares of redeemable convertible preferred stock into shares of common stock for the purposes of determining the amount that such holder is entitled to receive upon liquidation and would not have been entitled to any distribution that would have otherwise been made to the holders of redeemable convertible preferred stock detailed above.

Dividends

No dividends have been declared or paid as of December 31, 2020.

Conversion

The holders of our redeemable convertible preferred stock also had the right, at any time, to convert any or all of their shares into such number of shares of common stock as is determined by dividing $1.00 in the case of Series A-R Stock, $2.3567 in the case of the Series B-R Stock, $12.2686 in the case of Series C-R Stock, $23.64 in the case of Series D-R Stock, $37.7344 in the case of Series E-R Stock, $50.0568 in the case of Series F-R Stock, and $34.4758 in the case of Series G Stock and Series G’ Stock by the applicable conversion price. The initial conversion price was $1.00 in the case of Series A-R Stock, $2.3567 in the case of the Series B-R Stock, $2.3567 in the case of Series C-R Stock, $23.64 in the case of Series D-R Stock, $37.7344 in the case of Series E-R Stock, $50.0568 in the case of Series F-R Stock and $34.4758 in the case of Series G Stock and Series G’ Stock. If, at any time following the initial issuance of shares of Series G Stock, we had issued any additional shares of capital stock without consideration or for a consideration per share less than the then-effective conversion price for our redeemable convertible preferred stock, the conversion price for all series of outstanding redeemable convertible preferred stock would have been subject to adjustment.