William Blair Investment Management, LLC

William Blair Investment Management, LLC reported 403 holdings worth US$33.3B as of Jun 30, 2026 (Form 13F)

As of Jun 30, 2026 · Filed Aug 12, 2026

William Blair Investment Management, LLC reported 403 holdings worth US$33.3B as of Jun 30, 2026. Largest: Taiwan Semiconductor Manufacturing Co., Ltd., Nvidia Corporation and Alphabet Inc (google) Class C. Filed Aug 12, 2026 (Form 13F).

Holdings
403
Value as reported
US$33.3B

The filing in full

CompanySharesValue as reported% of portfolio
Taiwan Semiconductor Manufacturing Co., Ltd.4.94MUS$2.36B7.1%
Nvidia Corporation8.6MUS$1.72B5.2%
Alphabet Inc (google) Class C3.19MUS$1.14B3.4%
Apple Inc3.26MUS$943M2.8%
Broadcom Inc.2.06MUS$777M2.3%
Microsoft Corp.2.05MUS$764M2.3%
Meta Platforms, Inc.950KUS$535M1.6%
Amazon.com, Inc.1.99MUS$474M1.4%
Mastercard Incorporated918KUS$471M1.4%
Advanced Micro Devices Inc764KUS$444M1.3%
Applied Materials, Inc.498KUS$360M1.1%
Ge Aerospace791KUS$296M0.89%
Primo Brands Corporation11.4MUS$279M0.84%
Everpure, Inc.3.46MUS$272M0.82%
Amphenol Corporation1.54MUS$271M0.81%
Onto Innovation Inc.665KUS$252M0.76%
Borgwarner Inc.3.78MUS$251M0.76%
The Carlyle Group Inc.5.91MUS$249M0.75%
Argenx Se265KUS$245M0.74%
Mueller Industries, Inc.1.99MUS$244M0.73%
Monster Beverage Corporation2.54MUS$244M0.73%
F5, Inc.586KUS$244M0.73%
Credicorp Ltd.625KUS$244M0.73%
Curtiss-wright Corporation317KUS$240M0.72%
Itau Unibanco Holding S.a.28.3MUS$231M0.69%
Snowflake Inc.901KUS$229M0.69%
Twist Bioscience Corporation2.17MUS$224M0.67%
Teva Pharmaceutical Industries Limited6.59MUS$223M0.67%
Unitedhealth Group Incorporated523KUS$218M0.65%
Crowdstrike Holdings, Inc.281KUS$215M0.65%
Regal Rexnord Corporation891KUS$212M0.64%
Krystal Biotech, Inc.570KUS$212M0.64%
Carpenter Technology Corporation333KUS$205M0.62%
Power Integrations, Inc.2.38MUS$200M0.60%
Guardant Health, Inc.1.31MUS$197M0.59%
Halozyme Therapeutics, Inc.2.51MUS$197M0.59%
Talen Energy Corporation498KUS$191M0.58%
Transunion2.65MUS$191M0.57%
Cameco Corporation1.86MUS$189M0.57%
Sterling Infrastructure, Inc.224KUS$188M0.56%
Costco Wholesale Corporation199KUS$186M0.56%
Alignment Healthcare, Inc.7.76MUS$185M0.56%
C.h. Robinson Worldwide, Inc.978KUS$184M0.55%
Diodes Incorporated1.68MUS$184M0.55%
Bwx Technologies, Inc.941KUS$183M0.55%
Akamai Technologies, Inc.1.54MUS$182M0.55%
The Baldwin Insurance Group, Inc.6.73MUS$179M0.54%
Bentley Systems, Incorporated5.94MUS$178M0.53%
Lattice Semiconductor Corporation1.16MUS$177M0.53%
Madrigal Pharmaceuticals, Inc.324KUS$174M0.52%
Everest Group, Ltd.480KUS$171M0.52%
Agilent Technologies, Inc.1.29MUS$171M0.51%
O'reilly Automotive, Inc.1.86MUS$171M0.51%
Dynatrace, Inc.3.86MUS$169M0.51%
Mirum Pharmaceuticals, Inc.1.4MUS$164M0.49%
Healthequity, Inc.1.77MUS$160M0.48%
Idexx Laboratories, Inc.298KUS$157M0.47%
Servicenow, Inc.1.55MUS$154M0.46%
Synaptics Incorporated1.24MUS$154M0.46%
Texas Instruments Incorporated506KUS$151M0.45%
Sharkninja, Inc.987KUS$150M0.45%
West Pharmaceutical Services, Inc.417KUS$150M0.45%
Grand Canyon Education, Inc.1.04MUS$149M0.45%
Littelfuse, Inc.322KUS$146M0.44%
Canadian Natural Resources Limited3.64MUS$144M0.43%
Reliance, Inc.382KUS$143M0.43%
Forgent Power Solutions, Inc.2.52MUS$141M0.42%
Ptc Therapeutics, Inc.1.72MUS$141M0.42%
Timken Company (the)955KUS$139M0.42%
Cytokinetics, Incorporated1.6MUS$137M0.41%
Lincoln Electric Holdings, Inc.507KUS$135M0.40%
Eagle Materials Inc577KUS$130M0.39%
Clean Harbors, Inc.419KUS$125M0.38%
Novanta Inc.766KUS$124M0.37%
First Horizon Corporation4.81MUS$123M0.37%
Etsy, Inc.1.6MUS$120M0.36%
Diebold Nixdorf Incorporated1.38MUS$117M0.35%
Garrett Motion Inc.3.23MUS$117M0.35%
Encompass Health Corporation1.15MUS$116M0.35%
Appfolio, Inc.722KUS$116M0.35%
Marriott International301KUS$112M0.34%
National Bank Holdings Corporation2.5MUS$111M0.33%
Chipotle Mexican Grill, Inc.3.24MUS$110M0.33%
Saia, Inc.259KUS$109M0.33%
Repligen Corporation789KUS$108M0.32%
Freshpet, Inc.1.81MUS$107M0.32%
Martin Marietta Materials, Inc.182KUS$105M0.32%
Knight-swift Transportation Holdings Inc.1.33MUS$104M0.31%
Globus Medical, Inc.1.28MUS$102M0.31%
Nu Holdings Ltd.7.6MUS$101M0.31%
Hudbay Minerals Inc4.22MUS$99.5M0.30%
Old National Bancorp3.83MUS$99.3M0.30%
Landbridge Company Llc1.24MUS$97.9M0.29%
Genedx Holdings Corp.1.4MUS$96.2M0.29%
Caseys General Stores, Inc.120KUS$95.6M0.29%
Manhattan Associates, Inc.675KUS$94M0.28%
Glaukos Corporation662KUS$92.5M0.28%
Churchill Downs, Incorporated1.03MUS$92.3M0.28%
National Vision Holdings, Inc.4.75MUS$90.2M0.27%
Cava Group, Inc.1.15MUS$89.9M0.27%

Every holding of William Blair Investment Management, LLC

Source

View original at SEC

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