WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

CIK

1644956

City

CHICAGO

State / Country

Stock

PODD — Insulet Corp

Top Portfolio Positions

404 positions · $30,335,994,855 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	6.15%
NVDA	Nvidia Corp Technology	8,941,756	$1,559,442,246	5.14%
AAPL	Apple Inc. Technology	4,812,433	$1,221,347,371	4.03%
MSFT	Microsoft Corp Technology	2,896,782	$1,072,301,792	3.53%
GOOGL	Alphabet Inc. Communication Services	2,504,605	$720,224,213	2.37%
AVGO	Broadcom Inc. Technology	2,201,558	$681,404,216	2.25%
AMZN	Amazon Com Inc Consumer Cyclical	3,163,629	$658,889,011	2.17%
META	Meta Platforms, Inc. Communication Services	1,013,122	$579,637,489	1.91%
MA	Mastercard Inc Financial Services	1,060,651	$529,964,878	1.75%
AZN	Astrazeneca PLC Healthcare	1,942,155	$383,031,809	1.26%

25 quarters · across all stocks

24 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$29,195,039	139,130	-4.6%	Shares	Sole	2026-05-08
2025-12-31	$41,445,318	145,811	-50.3%	Shares	Sole	2026-02-09
2025-09-30	$90,613,181	293,503	-49.7%	Shares	Sole	2025-11-12
2025-06-30	$183,210,611	583,139	-7.2%	Shares	Sole	2025-07-29
2025-03-31	$165,060,101	628,537	-7.1%	Shares	Sole	2025-05-09
2024-12-31	$176,563,990	676,309	-16.5%	Shares	Sole	2025-02-10
2024-09-30	$188,416,478	809,523	-14.1%	Shares	Sole	2024-11-08
2024-06-30	$190,146,857	942,254	-1.1%	Shares	Sole	2024-08-08
2024-03-31	$163,218,735	952,268	+3.7%	Shares	Sole	2024-05-08
2023-12-31	$199,337,139	918,689	+25.3%	Shares	Sole	2024-02-09
2023-09-30	$116,893,889	732,923	+145.1%	Shares	Sole	2023-11-09
2023-06-30	$86,224,905	299,039	-37.8%	Shares	Sole	2023-08-11
2023-03-31	$153,252,306	480,475	+59.3%	Shares	Sole	2023-05-12
2022-12-31	$88,788,318	301,601	-40.0%	Shares	Sole	2023-02-09
2022-09-30	$115,285,428	502,552	+0.1%	Shares	Sole	2022-11-09
2022-06-30	$109,432,032	502,120	-2.3%	Shares	Sole	2022-08-10
2022-03-31	$136,901,284	513,913	-33.1%	Shares	Sole	2022-05-11
2021-09-30	$218,192,286	767,661	-1.4%	Shares	Sole	2021-11-10
2021-06-30	$213,811,995	778,886	-2.1%	Shares	Sole	2021-08-12
2021-03-31	$207,495,064	795,244	-12.2%	Shares	Sole	2021-05-13
2020-12-31	$231,405,223	905,235	-3.4%	Shares	Sole	2021-02-09
2020-09-30	$221,646,739	936,839	+3.9%	Shares	Sole	2020-11-06
2020-06-30	$175,112,957	901,436	+0.7%	Shares	Sole	2020-08-12
2020-03-31	$148,384,499	895,609	—	Shares	Sole	2020-05-08
No 13F history on record for this holder in this stock.