AMERICAN CENTURY COMPANIES INC

Position in PBYI — Puma Biotechnology, Inc.

CIK 748054 KANSAS CITY, MO

Position in PBYI

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

Position Value

$18,815,167

+$6,569,717 QoQ

Shares Held

2,319,996

+21.1% QoQ

Ownership

4.49%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

of 160 holders

Holding Since

Dec 2023

11 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

AMERICAN CENTURY COMPANIES INC holds $3,618,743,392 across 179 Biotechnology names. PBYI ranks #42 (0.5% 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

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$18,815,167	2,319,996	+21.1%	Shares	Defined	2026-08-12
2026-03-31	$12,245,450	1,916,346	+16.1%	Shares	Defined	2026-05-15
2025-12-31	$9,818,315	1,650,137	+11.3%	Shares	Defined	2026-02-13
2025-09-30	$7,875,728	1,483,188	+10.5%	Shares	Defined	2025-11-12
2025-06-30	$4,604,003	1,342,275	+16.8%	Shares	Defined	2025-08-12
2025-03-31	$3,402,993	1,149,660	+21.2%	Shares	Defined	2025-05-13
2024-12-31	$2,892,546	948,376	+8.4%	Shares	Defined	2025-02-11
2024-09-30	$2,230,084	874,543	+18.4%	Shares	Defined	2024-11-12
2024-06-30	$2,408,820	738,902	+98.5%	Shares	Defined	2024-08-07
2024-03-31	$1,972,919	372,249	+509.7%	Shares	Defined	2024-05-14
2023-12-31	$264,355	61,052	—	Shares	Defined	2024-02-13
No filing history on record for this holder in this stock.