WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

CIK

1644956

City

CHICAGO

State / Country

Stock

ASR — Southeast Airport Group

Top Portfolio Positions

404 positions · $30,195,876,293 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	5,518,260	$1,864,895,967	6.18%
NVDA	Nvidia Corp Technology	8,941,756	$1,559,442,246	5.16%
AAPL	Apple Inc. Technology	4,812,433	$1,221,347,371	4.04%
MSFT	Microsoft Corp Technology	2,896,782	$1,072,301,792	3.55%
GOOGL	Alphabet Inc. Communication Services	2,504,605	$720,224,213	2.39%
AVGO	Broadcom Inc. Technology	2,201,558	$681,404,216	2.26%
AMZN	Amazon Com Inc Consumer Cyclical	3,163,629	$658,889,011	2.18%
META	Meta Platforms, Inc. Communication Services	1,013,122	$579,637,489	1.92%
MA	Mastercard Inc Financial Services	1,060,651	$529,964,878	1.76%
AZN	Astrazeneca PLC Healthcare	1,942,155	$383,031,809	1.27%

26 quarters · across all stocks

Compact Export CSV

25 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$12,220,006	36,355	-6.2%	Shares	Sole	2026-05-08
2025-12-31	$12,533,043	38,754	-9.7%	Shares	Sole	2026-02-09
2025-09-30	$13,874,736	42,912	-3.6%	Shares	Sole	2025-11-12
2025-06-30	$14,198,643	44,528	-9.5%	Shares	Sole	2025-07-29
2025-03-31	$13,475,777	49,214	-0.2%	Shares	Sole	2025-05-09
2024-12-31	$12,709,660	49,333	-3.1%	Shares	Sole	2025-02-10
2024-09-30	$14,395,028	50,909	+0.0%	Shares	Sole	2024-11-08
2024-06-30	$15,243,471	50,893	-0.4%	Shares	Sole	2024-08-08
2024-03-31	$16,275,943	51,073	+0.0%	Shares	Sole	2024-05-08
2023-12-31	$15,024,249	51,056	-64.4%	Shares	Sole	2024-02-09
2023-09-30	$35,238,499	143,415	-12.7%	Shares	Sole	2023-11-09
2023-06-30	$45,614,192	164,263	-9.1%	Shares	Sole	2023-08-11
2023-03-31	$55,409,163	180,798	+50.9%	Shares	Sole	2023-05-12
2022-12-31	$27,923,385	119,848	-3.3%	Shares	Sole	2023-02-09
2022-09-30	$24,308,209	123,914	-6.2%	Shares	Sole	2022-11-09
2022-06-30	$25,947,832	132,124	+32.4%	Shares	Sole	2022-08-10
2022-03-31	$22,119,225	99,816	-4.7%	Shares	Sole	2022-05-11
2021-12-31	$21,596,496	104,756	-3.7%	Shares	Sole	2022-02-14
2021-09-30	$20,333,071	108,733	-2.1%	Shares	Sole	2021-11-10
2021-06-30	$20,532,035	111,044	-5.8%	Shares	Sole	2021-08-12
2021-03-31	$20,947,928	117,824	-5.4%	Shares	Sole	2021-05-13
2020-12-31	$20,536,753	124,518	-6.1%	Shares	Sole	2021-02-09
2020-09-30	$15,390,451	132,642	-7.0%	Shares	Sole	2020-11-06
2020-06-30	$16,011,767	142,593	-40.0%	Shares	Sole	2020-08-12
2020-03-31	$22,364,651	237,568	—	Shares	Sole	2020-05-08
No 13F history on record for this holder in this stock.