Our redeemable convertible preferred stock on the day immediately prior to the closing of our IPO, or December 11, 2018, and December 31, 2017 consisted of the following (in thousands, except share amounts):



	Redeemable Convertible Preferred Shares Authorized	Redeemable Convertible Preferred Shares Issued and Outstanding	Carrying Value		Liquidation Preference As of December 11, 2018


Series A redeemable convertible preferred stock	42,000,000	42,000,000	$	182	$	2,859
Series B redeemable convertible preferred stock	122,296,280	122,296,280	770		12,493
Series C redeemable convertible preferred stock	85,669,774	85,669,774	36,238		41,750
Series D redeemable convertible preferred stock	63,291,156	63,021,976	163,355		188,840
Series E redeemable convertible preferred stock	81,428,340	80,884,240	498,525		498,814
Series F redeemable convertible preferred stock	54,001,241	54,001,241	473,532		474,131
Series G redeemable convertible preferred stock	55,666,004	55,666,004	549,413		560,000
Series H redeemable convertible preferred stock	5,000,000	5,000,000	111,546		125,000
Balance at December 11, 2018	509,352,795	508,539,515	$	1,833,561	$	1,903,887



	Redeemable Convertible Preferred Shares Authorized	Redeemable Convertible Preferred Shares Issued and Outstanding			Liquidation Preference As of December 31, 2017

			Carrying Value
Series A redeemable convertible preferred stock	42,000,000	42,000,000	$	182	$	2,701
Series B redeemable convertible preferred stock	122,296,280	122,296,280	770		11,801
Series C redeemable convertible preferred stock	85,669,774	85,669,774	36,238		39,676
Series D redeemable convertible preferred stock	63,291,156	63,291,156	164,059		179,462
Series E redeemable convertible preferred stock	81,428,340	81,428,340	501,880		502,169
Series F redeemable convertible preferred stock	54,001,241	54,001,241	473,532		474,131
Balance at December 31, 2017	448,686,791	448,686,791	$	1,176,661	$	1,209,940

The following table summarizes the activity for each series of our outstanding redeemable convertible preferred stock for the year ended December 31, 2018 (in thousands, except share data):



	Series A Redeemable Convertible Preferred Stock					Series B Redeemable Convertible Preferred Stock					Series C Redeemable Convertible Preferred Stock					Series D Redeemable Convertible Preferred Stock					Series E Redeemable Convertible Preferred Stock					Series F Redeemable Convertible Preferred Stock					Series G Redeemable Convertible Preferred Stock					Series H Redeemable Convertible Preferred Stock					Total Redeemable Convertible Preferred Stock
	Shares		Amount			Shares		Amount			Shares		Amount			Shares		Amount			Shares		Amount			Shares		Amount			Shares		Amount			Shares		Amount			Shares		Amount
Balance at December 31, 2017	42,000,000		$	182		122,296,280		$	770		85,669,774		$	36,238		63,291,156		$	164,059		81,428,340		$	501,880		54,001,241		$	473,532		—		$	—		—		$	—		448,686,791		$	1,176,661
Issuance of Series G redeemable convertible preferred stock, net of issuance costs of $10,517	—		—			—		—			—		—			—		—			—		—			—		—			55,666,004		549,413			—		—			55,666,004		549,413
Issuance of Series H redeemable convertible preferred stock, net of issuance costs of $474	—		—			—		—			—		—			—		—			—		—			—		—			—		—			5,000,000		111,546			5,000,000		111,546
Repurchase of Series D redeemable convertible preferred stock	—		—			—		—			—		—			(269,180	)	(704		)	—		—			—		—			—		—			—		—			(269,180	)	(704		)
Repurchase of Series E redeemable convertible preferred stock	—		—			—		—			—		—			—		—			(544,100	)	(3,355		)	—		—			—		—			—		—			(544,100	)	(3,355		)
Conversion of redeemable convertible preferred stock	(42,000,000	)	(182		)	(122,296,280	)	(770		)	(85,669,774	)	(36,238		)	(63,021,976	)	(163,355		)	(80,884,240	)	(498,525		)	(54,001,241	)	(473,532		)	(55,666,004	)	(549,413		)	(5,000,000	)	(111,546		)	(508,539,515	)	(1,833,561		)
Balance at December 31, 2018	—		$	—		—		$	—		—		$	—		—		$	—		—		$	—		—		$	—		—		$	—		—		$	—		—		$	—