WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

CIK

1644956

City

CHICAGO

State / Country

Stock

KN — Knowles Corp

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%

25 quarters · across all stocks

Compact Export CSV

25 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$32,734,296	1,274,700	+3.4%	Shares	Sole	2026-05-08
2025-12-31	$26,430,604	1,233,346	-20.2%	Shares	Sole	2026-02-09
2025-09-30	$36,044,136	1,546,295	-5.7%	Shares	Sole	2025-11-12
2025-06-30	$28,897,980	1,640,067	-7.5%	Shares	Sole	2025-07-29
2025-03-31	$26,948,855	1,772,951	-20.4%	Shares	Sole	2025-05-09
2024-12-31	$44,379,346	2,226,761	+2.5%	Shares	Sole	2025-02-10
2024-09-30	$39,167,596	2,172,357	-3.0%	Shares	Sole	2024-11-08
2024-06-30	$38,645,882	2,239,043	-0.2%	Shares	Sole	2024-08-08
2024-03-31	$36,115,761	2,243,215	-0.1%	Shares	Sole	2024-05-08
2023-12-31	$40,202,075	2,244,672	-1.9%	Shares	Sole	2024-02-09
2023-09-30	$33,885,813	2,288,036	-7.3%	Shares	Sole	2023-11-09
2023-06-30	$44,589,670	2,468,974	+1.9%	Shares	Sole	2023-08-11
2023-03-31	$41,195,046	2,423,238	+0.5%	Shares	Sole	2023-05-12
2022-12-31	$39,588,751	2,411,008	+9.4%	Shares	Sole	2023-02-09
2022-09-30	$26,814,538	2,203,331	+14.0%	Shares	Sole	2022-11-09
2022-06-30	$33,485,060	1,932,202	-2.6%	Shares	Sole	2022-08-10
2022-03-31	$42,710,331	1,983,759	-1.3%	Shares	Sole	2022-05-11
2021-12-31	$46,935,251	2,010,075	+1.5%	Shares	Sole	2022-02-14
2021-09-30	$37,113,239	1,980,429	+48203.1%	Shares	Sole	2021-11-10
2021-06-30	$80,934	4,100	-99.7%	Shares	Sole	2021-08-12
2021-03-31	$30,284,252	1,447,622	+9.2%	Shares	Sole	2021-05-13
2020-12-31	$24,425,868	1,325,332	-4.1%	Shares	Sole	2021-02-09
2020-09-30	$20,583,381	1,381,435	+3.3%	Shares	Sole	2020-11-06
2020-06-30	$20,405,595	1,337,195	-8.0%	Shares	Sole	2020-08-12
2020-03-31	$19,447,830	1,453,500	—	Shares	Sole	2020-05-08
No 13F history on record for this holder in this stock.