AMERICAN CENTURY COMPANIES INC

Position in SRRK — Scholar Rock Holding Corp

CIK 748054 KANSAS CITY, MO

Position in SRRK

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$53,635,835

+$18,874,750 QoQ

Shares Held

975,197

+37.9% QoQ

Ownership

0.801%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#30

of 304 holders

Holding Since

Dec 2022

13 quarters on record

Voting authority Sole 86% Shared 14% None 0%

Healthcare · as of Jun 30, 2026

AMERICAN CENTURY COMPANIES INC holds $3,568,637,643 across 178 Biotechnology names. SRRK ranks #16 (1.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ALNY	Alnylam Pharmaceuticals, Inc.	1,853,956	$558,096,374
2	ASND	Ascendis Pharma A/S	1,400,575	$373,561,364
3	VRTX	Vertex Pharmaceuticals Inc / Ma	580,901	$288,550,953
4	ARGX	Argenx SE	173,193	$160,683,269
5	IONS	Ionis Pharmaceuticals Inc	1,947,076	$154,383,656
6	EXEL	Exelixis, Inc.	1,791,664	$97,484,438
7	HRMY	Harmony Biosciences Holdings, Inc.	2,539,512	$92,463,631
8	GPCR	Structure Therapeutics Inc.	1,682,179	$90,282,546

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$53,635,835	975,197	+37.9%	Shares	Defined	2026-08-12
2026-03-31	$34,761,085	707,101	-0.2%	Shares	Defined	2026-05-15
2025-12-31	$31,198,544	708,253	+3.2%	Shares	Defined	2026-02-13
2025-09-30	$25,545,299	685,964	-1.0%	Shares	Defined	2025-11-12
2025-06-30	$24,534,583	692,676	+4.3%	Shares	Defined	2025-08-12
2025-03-31	$21,345,253	663,927	+1.1%	Shares	Defined	2025-05-13
2024-12-31	$28,394,113	656,967	+5093.4%	Shares	Defined	2025-02-11
2024-03-31	$224,664	12,650	-78.7%	Shares	Defined	2024-05-14
2023-12-31	$1,114,482	59,281	+115.0%	Shares	Defined	2024-02-13
2023-09-30	$195,747	27,570	+31.1%	Shares	Defined	2023-11-13
2023-06-30	$158,581	21,032	+47.9%	Shares	Defined	2023-08-14
2023-03-31	$113,776	14,222	+36.6%	Shares	Defined	2023-05-11
2022-12-31	$94,192	10,408	—	Shares	Defined	2023-02-13
No filing history on record for this holder in this stock.