William Blair Investment Management
Active equity managersFiles as WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (SEC CIK 1644956). Portfolio from its latest quarterly 13F-HR filing.
- $33.1B
- Tracked value
- 392
- Positions
- Q2 2026
- Portfolio as of
- Aug 12, 2026
- Filed
Holdings
Top 100 of 392 tracked positions, by value| # | Company | Portfolio % | vs Q1 2026 | Shares | Value |
|---|---|---|---|---|---|
| 1 | TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | 7.1% | ▼ 10.5% | 4,936,408 | $2.36B |
| 2 | NVDANVIDIA CORP | 5.2% | ▼ 3.8% | 8,599,021 | $1.72B |
| 3 | GOOGLAlphabet Inc. | 3.4% | ▲ 27.4% | 3,191,012 | $1.14B |
| 4 | AAPLApple Inc. | 2.8% | ▼ 32.3% | 3,259,914 | $943.29M |
| 5 | AVGOBroadcom Inc. | 2.3% | ▼ 6.6% | 2,056,135 | $776.71M |
| 6 | MSFTMICROSOFT CORP | 2.3% | ▼ 29.3% | 2,048,642 | $764.18M |
| 7 | METAMeta Platforms, Inc. | 1.6% | ▼ 6.2% | 950,115 | $535.19M |
| 8 | AMZNAMAZON COM INC | 1.4% | ▼ 37.2% | 1,987,085 | $473.6M |
| 9 | MAMastercard Inc | 1.4% | ▼ 13.4% | 918,005 | $471.49M |
| 10 | AMDADVANCED MICRO DEVICES INC | 1.3% | ▼ 26.8% | 763,517 | $443.53M |
| 11 | AMATAPPLIED MATERIALS INC /DE | 1.1% | ▲ 1,325% | 497,946 | $360.01M |
| 12 | GEGENERAL ELECTRIC CO | 0.9% | NEW | 790,801 | $295.55M |
| 13 | AZNASTRAZENECA PLC | 0.9% | ▼ 22.0% | 1,514,795 | $283.25M |
| 14 | PRMBPrimo Brands Corp | 0.8% | ▼ 12.5% | 11,426,823 | $279.27M |
| 15 | PEverpure, Inc. | 0.8% | ▲ 19.9% | 3,455,381 | $272.25M |
| 16 | APHAMPHENOL CORP /DE/ | 0.8% | ▲ 42.5% | 1,535,059 | $270.66M |
| 17 | LINLINDE PLC | 0.8% | ▼ 20.6% | 504,953 | $262.04M |
| 18 | ONTOONTO INNOVATION INC. | 0.8% | ▼ 31.0% | 665,377 | $251.81M |
| 19 | BWABORGWARNER INC | 0.8% | ▲ 31.2% | 3,784,707 | $251.3M |
| 20 | CGCarlyle Group Inc. | 0.8% | ▼ 6.1% | 5,914,905 | $249.08M |
| 21 | ARGXARGENX SE | 0.7% | ▼ 0.5% | 264,617 | $245.49M |
| 22 | MLIMUELLER INDUSTRIES INC | 0.7% | ▼ 5.9% | 1,986,139 | $244.16M |
| 23 | MNSTMonster Beverage Corp | 0.7% | ▼ 13.5% | 2,538,136 | $243.97M |
| 24 | FFIVF5, INC. | 0.7% | ▼ 9.8% | 586,271 | $243.87M |
| 25 | BAPCREDICORP LTD | 0.7% | ▲ 0.4% | 625,144 | $243.54M |
| 26 | CWCURTISS WRIGHT CORP | 0.7% | ▲ 36.7% | 317,306 | $240.44M |
| 27 | ITUBItau Unibanco Holding S.A. | 0.7% | ▼ 10.7% | 28,283,482 | $231.06M |
| 28 | SNOWSnowflake Inc. | 0.7% | ▼ 20.1% | 901,087 | $229.33M |
| 29 | TWSTTwist Bioscience Corp | 0.7% | ▼ 58.7% | 2,174,594 | $223.72M |
| 30 | TEVATEVA PHARMACEUTICAL INDUSTRIES LTD | 0.7% | ▲ 362% | 6,593,221 | $223.37M |
| 31 | UNHUNITEDHEALTH GROUP INC | 0.7% | ▼ 22.3% | 523,387 | $217.54M |
| 32 | CRWDCrowdStrike Holdings, Inc. | 0.6% | NEW | 281,409 | $214.75M |
| 33 | RRXREGAL REXNORD CORP | 0.6% | ▲ 6.4% | 891,139 | $212.26M |
| 34 | KRYSKrystal Biotech, Inc. | 0.6% | ▲ 40.0% | 570,153 | $211.91M |
| 35 | CRSCARPENTER TECHNOLOGY CORP | 0.6% | ▼ 5.2% | 332,607 | $205.17M |
| 36 | POWIPOWER INTEGRATIONS INC | 0.6% | ▲ 0.1% | 2,382,007 | $199.52M |
| 37 | NVTnVent Electric plc | 0.6% | ▼ 5.4% | 1,167,763 | $198.06M |
| 38 | GHGuardant Health, Inc. | 0.6% | ▲ 37.9% | 1,311,320 | $196.74M |
| 39 | HALOHALOZYME THERAPEUTICS, INC. | 0.6% | ▼ 0.6% | 2,511,050 | $196.54M |
| 40 | TLNTalen Energy Corp | 0.6% | ▼ 5.2% | 497,660 | $191.23M |
| 41 | TRUTransUnion | 0.6% | ▼ 8.4% | 2,648,744 | $191.08M |
| 42 | CCJCAMECO CORP | 0.6% | ▲ 10.5% | 1,858,735 | $189.33M |
| 43 | STRLSTERLING INFRASTRUCTURE, INC. | 0.6% | ▼ 30.8% | 223,697 | $187.76M |
| 44 | COSTCOSTCO WHOLESALE CORP /NEW | 0.6% | ▼ 34.1% | 199,355 | $186.49M |
| 45 | ALHCAlignment Healthcare, Inc. | 0.6% | ▲ 48.8% | 7,761,403 | $184.8M |
| 46 | CHRWC. H. ROBINSON WORLDWIDE, INC. | 0.6% | ▼ 6.1% | 978,297 | $184.25M |
| 47 | STXSeagate Technology Holdings plc | 0.6% | NEW | 190,847 | $184.17M |
| 48 | DIODDIODES INC /DEL/ | 0.6% | ▲ 281% | 1,682,686 | $184.15M |
| 49 | BWXTBWX Technologies, Inc. | 0.6% | ▼ 4.1% | 941,233 | $183.21M |
| 50 | AKAMAKAMAI TECHNOLOGIES INC | 0.5% | ▼ 5.2% | 1,535,467 | $181.51M |
| 51 | BWINBaldwin Insurance Group, Inc. | 0.5% | ▼ 0.9% | 6,732,965 | $178.96M |
| 52 | BSYBENTLEY SYSTEMS INC | 0.5% | ▲ 78.8% | 5,942,507 | $177.62M |
| 53 | LSCCLATTICE SEMICONDUCTOR CORP | 0.5% | ▼ 43.2% | 1,160,417 | $177.5M |
| 54 | MDGLMADRIGAL PHARMACEUTICALS, INC. | 0.5% | ▼ 4.8% | 324,123 | $174.04M |
| 55 | EGEVEREST GROUP, LTD. | 0.5% | ▼ 5.2% | 479,877 | $171.43M |
| 56 | AAGILENT TECHNOLOGIES, INC. | 0.5% | ▼ 28.3% | 1,287,265 | $170.99M |
| 57 | ORLYO REILLY AUTOMOTIVE INC | 0.5% | ▼ 16.1% | 1,855,002 | $170.83M |
| 58 | DTDynatrace, Inc. | 0.5% | ▲ 19.5% | 3,857,741 | $169.39M |
| 59 | MIRMMirum Pharmaceuticals, Inc. | 0.5% | ▲ 318% | 1,404,741 | $164.45M |
| 60 | HQYHEALTHEQUITY, INC. | 0.5% | ▲ 6.8% | 1,773,227 | $160.16M |
| 61 | IDXXIDEXX LABORATORIES INC /DE | 0.5% | ▼ 15.2% | 298,154 | $156.96M |
| 62 | NOWServiceNow, Inc. | 0.5% | ▼ 34.6% | 1,551,192 | $154M |
| 63 | SYNASYNAPTICS Inc | 0.5% | ▼ 21.9% | 1,239,622 | $154M |
| 64 | TXNTEXAS INSTRUMENTS INC | 0.5% | ▲ 19.3% | 506,229 | $150.89M |
| 65 | SNSharkNinja, Inc. | 0.5% | ▼ 8.1% | 986,806 | $150.26M |
| 66 | WSTWEST PHARMACEUTICAL SERVICES INC | 0.5% | ▲ 950% | 417,309 | $149.81M |
| 67 | LOPEGrand Canyon Education, Inc. | 0.4% | ▲ 6.0% | 1,038,828 | $148.67M |
| 68 | LFUSLITTELFUSE INC /DE | 0.4% | ▲ 5.6% | 321,681 | $146.47M |
| 69 | CNQCANADIAN NATURAL RESOURCES Ltd | 0.4% | NEW | 3,635,082 | $143.7M |
| 70 | RSRELIANCE, INC. | 0.4% | ▼ 5.2% | 382,494 | $142.9M |
| 71 | TTETotalEnergies SE | 0.4% | ▲ 113% | 1,819,275 | $141.36M |
| 72 | FPSForgent Power Solutions, Inc. | 0.4% | NEW | 2,516,270 | $140.56M |
| 73 | PTCTPTC THERAPEUTICS, INC. | 0.4% | NEW | 1,722,688 | $140.52M |
| 74 | TKRTIMKEN CO | 0.4% | ▲ 18,347% | 954,839 | $138.76M |
| 75 | CYTKCYTOKINETICS INC | 0.4% | ▲ 47.4% | 1,603,442 | $136.6M |
| 76 | LECOLINCOLN ELECTRIC HOLDINGS INC | 0.4% | ▼ 5.2% | 506,862 | $134.58M |
| 77 | EXPEAGLE MATERIALS INC | 0.4% | ▼ 8.5% | 576,712 | $129.76M |
| 78 | CLHCLEAN HARBORS INC | 0.4% | ▼ 5.4% | 419,210 | $125.24M |
| 79 | NOVTNOVANTA INC | 0.4% | ▼ 2.2% | 765,867 | $124.25M |
| 80 | BIRKBirkenstock Holding plc | 0.4% | ▲ 11.3% | 2,865,895 | $123.32M |
| 81 | FHNFIRST HORIZON CORP | 0.4% | ▼ 4.9% | 4,808,223 | $123.28M |
| 82 | ETSYETSY INC | 0.4% | NEW | 1,598,520 | $120.42M |
| 83 | TIGOMILLICOM INTERNATIONAL CELLULAR SA | 0.4% | ▼ 6.8% | 1,309,545 | $118.85M |
| 84 | DBDDIEBOLD NIXDORF, Inc | 0.4% | ▼ 3.3% | 1,379,553 | $117.29M |
| 85 | GTXGarrett Motion Inc. | 0.4% | ▼ 43.9% | 3,232,883 | $117.13M |
| 86 | EHCEncompass Health Corp | 0.4% | ▲ 43.3% | 1,151,085 | $116.35M |
| 87 | APPFAPPFOLIO INC | 0.3% | ▲ 12.2% | 721,826 | $115.74M |
| 88 | MARMARRIOTT INTERNATIONAL INC /MD/ | 0.3% | ▲ 256% | 300,872 | $111.5M |
| 89 | NBHCNational Bank Holdings Corp | 0.3% | ▲ 0.9% | 2,497,817 | $110.98M |
| 90 | CMGCHIPOTLE MEXICAN GRILL INC | 0.3% | ▼ 17.3% | 3,235,762 | $110.02M |
| 91 | SAIASAIA INC | 0.3% | ▲ 52.2% | 259,020 | $109.09M |
| 92 | RGENREPLIGEN CORP | 0.3% | NEW | 788,571 | $107.59M |
| 93 | FRPTFreshpet, Inc. | 0.3% | ▼ 0.1% | 1,810,994 | $107.07M |
| 94 | JAZZJazz Pharmaceuticals plc | 0.3% | ▲ 516% | 436,893 | $105.28M |
| 95 | MLMMARTIN MARIETTA MATERIALS INC | 0.3% | ▼ 33.2% | 181,902 | $104.9M |
| 96 | KNXKnight-Swift Transportation Holdings Inc. | 0.3% | ▲ 41.0% | 1,330,047 | $103.57M |
| 97 | WFRDWeatherford International plc | 0.3% | ▲ 117% | 1,260,878 | $102.76M |
| 98 | GMEDGLOBUS MEDICAL INC | 0.3% | ▼ 36.1% | 1,284,896 | $101.52M |
| 99 | NUNu Holdings Ltd. | 0.3% | ▼ 38.1% | 7,596,051 | $101.48M |
| 100 | HBMHudbay Minerals Inc. | 0.3% | NEW | 4,215,842 | $99.54M |
Positions in companies on Scrutar, from the manager's latest quarterly 13F-HR filing. 13F filings disclose US-listed long positions only and can be filed up to 45 days after quarter end, so the portfolio may have changed since. Portfolio % is each position's share of the tracked value shown above. Changes compare share counts against the Q1 2026 filing, adjusted for stock splits.
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Source: SEC EDGAR Form 13F-HR filings.