AMERICAN CENTURY COMPANIES INC

CIK

748054

City

KANSAS CITY

State / Country

Stock

ARGX — Argenx SE

Top Portfolio Positions

2,709 positions · $186,217,978,676 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
NVDA	Nvidia Corp Technology	61,043,097	$10,645,916,116	5.72%
AAPL	Apple Inc. Technology	25,211,083	$6,398,320,754	3.44%
MSFT	Microsoft Corp Technology	16,151,639	$5,978,852,208	3.21%
AMZN	Amazon Com Inc Consumer Cyclical	24,268,620	$5,054,425,487	2.71%
GOOGL	Alphabet Inc. Communication Services	17,490,949	$5,029,697,294	2.70%
AVGO	Broadcom Inc. Technology	9,541,206	$2,953,098,669	1.59%
META	Meta Platforms, Inc. Communication Services	4,992,476	$2,856,345,293	1.53%
MA	Mastercard Inc Financial Services	5,361,694	$2,679,024,024	1.44%
TSLA	Tesla, Inc. Consumer Cyclical	6,762,692	$2,514,030,751	1.35%
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	6,348,986	$2,145,639,818	1.15%

50 quarters · across all stocks

Compact Export CSV

24 of 24 shown

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$126,844,425	173,700	-21.4%	Shares	Defined	2026-05-15
2025-12-31	$185,890,315	221,048	-3.8%	Shares	Defined	2026-02-13
2025-09-30	$169,469,161	229,770	+11.6%	Shares	Defined	2025-11-12
2025-06-30	$113,499,505	205,906	+38.3%	Shares	Defined	2025-08-12
2025-03-31	$88,100,288	148,852	-4.2%	Shares	Defined	2025-05-13
2024-12-31	$95,556,240	155,376	-33.0%	Shares	Defined	2025-02-11
2024-09-30	$125,713,230	231,909	-8.8%	Shares	Defined	2024-11-12
2024-06-30	$109,386,264	254,363	-0.6%	Shares	Defined	2024-08-07
2024-03-31	$100,723,812	255,826	+64.3%	Shares	Defined	2024-05-14
2023-12-31	$59,225,722	155,681	-15.9%	Shares	Defined	2024-02-13
2023-06-30	$72,156,560	185,145	-10.3%	Shares	Defined	2023-08-14
2023-03-31	$76,875,921	206,334	-3.1%	Shares	Defined	2023-05-11
2022-12-31	$80,683,592	212,981	-2.1%	Shares	Defined	2023-02-13
2022-09-30	$76,824,739	217,603	-3.7%	Shares	Defined	2022-11-14
2022-06-30	$85,592,780	225,910	-1.6%	Shares	Defined	2022-08-12
2022-03-31	$72,394,860	229,599	+0.9%	Shares	Defined	2022-05-11
2021-12-31	$79,670,676	227,507	+1.3%	Shares	Defined	2022-02-07
2021-09-30	$67,846,112	224,656	-45.2%	Shares	Defined	2021-11-10
2021-06-30	$123,472,118	410,111	+0.7%	Shares	Defined	2021-08-05
2021-03-31	$112,125,864	407,153	+0.3%	Shares	Defined	2021-05-14
2020-12-31	$119,342,604	405,803	-4.3%	Shares	Defined	2021-02-12
2020-09-30	$111,293,516	423,943	-7.3%	Shares	Defined	2020-11-13
2020-06-30	$103,016,823	457,385	+25.9%	Shares	Defined	2020-08-13
2020-03-31	$47,858,958	363,311	—	Shares	Defined	2020-05-14
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