CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit	Total
Balance at beginning at Dec. 31, 2023	$ 76	$ 901,471	$ 92	$ (676,421)	$ 225,218
Balance at beginning (in shares) at Dec. 31, 2023	75,979,495
Increase (decrease) in Stockholders' Equity
Unrealized gain (loss) on marketable securities			(142)		(142)
Exercise of stock options		280			280
Exercise of stock options (in shares)	47,293
Issuance of common shares upon RSU vesting (in shares)	360,373
Exercise of pre-funded and common warrants	$ 4	6,102			6,106
Exercise of pre-funded and common warrants (in shares)	3,357,493
Equity-based compensation expense		8,164			8,164
Net Income (Loss)				(56,853)	(56,853)
Balance at end at Mar. 31, 2024	$ 80	916,017	(50)	(733,274)	182,773
Balance at end (in shares) at Mar. 31, 2024	79,744,654
Balance at beginning at Dec. 31, 2023	$ 76	901,471	92	(676,421)	225,218
Balance at beginning (in shares) at Dec. 31, 2023	75,979,495
Increase (decrease) in Stockholders' Equity
Unrealized gain (loss) on marketable securities					36
Net Income (Loss)					(179,840)
Balance at end at Sep. 30, 2024	$ 80	935,249	128	(856,261)	79,196
Balance at end (in shares) at Sep. 30, 2024	80,081,535
Balance at beginning at Mar. 31, 2024	$ 80	916,017	(50)	(733,274)	182,773
Balance at beginning (in shares) at Mar. 31, 2024	79,744,654
Increase (decrease) in Stockholders' Equity
Unrealized gain (loss) on marketable securities			(4)		(4)
Exercise of stock options		47			47
Exercise of stock options (in shares)	6,617
Issuance of common shares upon RSU vesting (in shares)	240,797
Equity-based compensation expense		9,312			9,312
Net Income (Loss)				(58,508)	(58,508)
Balance at end at Jun. 30, 2024	$ 80	925,376	(54)	(791,782)	133,620
Balance at end (in shares) at Jun. 30, 2024	79,992,068
Increase (decrease) in Stockholders' Equity
Unrealized gain (loss) on marketable securities			182		182
Exercise of stock options		223			223
Exercise of stock options (in shares)	41,078
Issuance of common shares upon RSU vesting (in shares)	48,389
Equity-based compensation expense		9,650			9,650
Net Income (Loss)				(64,479)	(64,479)
Balance at end at Sep. 30, 2024	$ 80	935,249	128	(856,261)	79,196
Balance at end (in shares) at Sep. 30, 2024	80,081,535
Balance at beginning at Dec. 31, 2024	$ 94	1,291,095	160	(922,715)	368,634
Balance at beginning (in shares) at Dec. 31, 2024	93,823,678
Increase (decrease) in Stockholders' Equity
Unrealized gain (loss) on marketable securities			(31)		(31)
Exercise of stock options		5,038			5,038
Exercise of stock options (in shares)	375,939
Issuance of common shares upon RSU vesting	$ 1	(1)
Issuance of common shares upon RSU vesting (in shares)	673,790
Equity-based compensation expense		13,413			13,413
Other		2			2
Net Income (Loss)				(74,723)	(74,723)
Balance at end at Mar. 31, 2025	$ 95	1,309,547	129	(997,438)	312,333
Balance at end (in shares) at Mar. 31, 2025	94,873,407
Balance at beginning at Dec. 31, 2024	$ 94	1,291,095	160	(922,715)	368,634
Balance at beginning (in shares) at Dec. 31, 2024	93,823,678
Increase (decrease) in Stockholders' Equity
Unrealized gain (loss) on marketable securities					(43)
Net Income (Loss)					(286,974)
Balance at end at Sep. 30, 2025	$ 99	1,454,468	117	(1,209,689)	244,995
Balance at end (in shares) at Sep. 30, 2025	99,171,486
Balance at beginning at Mar. 31, 2025	$ 95	1,309,547	129	(997,438)	312,333
Balance at beginning (in shares) at Mar. 31, 2025	94,873,407
Increase (decrease) in Stockholders' Equity
Unrealized gain (loss) on marketable securities			(71)		(71)
Exercise of stock options		3,262			3,262
Exercise of stock options (in shares)	275,874
Issuance of common shares upon RSU vesting (in shares)	392,283
Exercise of pre-funded and common warrants	$ 1	3,366			3,367
Exercise of pre-funded and common warrants (in shares)	458,044
Equity-based compensation expense		24,433			24,433
Net Income (Loss)				(110,031)	(110,031)
Balance at end at Jun. 30, 2025	$ 96	1,340,608	58	(1,107,469)	233,293
Balance at end (in shares) at Jun. 30, 2025	95,999,608
Increase (decrease) in Stockholders' Equity
Unrealized gain (loss) on marketable securities			59		59
Exercise of stock options		3,874			3,874
Exercise of stock options (in shares)	308,064
Issuance of common shares upon RSU vesting (in shares)	96,814
Sale of common shares, net of issuance costs	$ 3	91,655			91,658
Sale of common shares, net of issuance costs (in shares)	2,767,000
Equity-based compensation expense		18,331			18,331
Net Income (Loss)				(102,220)	(102,220)
Balance at end at Sep. 30, 2025	$ 99	$ 1,454,468	$ 117	$ (1,209,689)	$ 244,995
Balance at end (in shares) at Sep. 30, 2025	99,171,486

Scholar Rock Holding Corp 10-Q