Holders — by stockHoldings — by fund
GW&K Investment Management, LLC
Everything this manager disclosed owning in US-listed stocks — its complete Form 13F portfolio · as of 2026-06-30 · filed with the SEC up to 45 days after quarter end · CIK 0001082917
$12.80B
disclosed book value
1,109
positions
1.9%
largest position share
Positions, as of 2026-06-30
top 100 of 1,109 · 13F covers long US-listed positions only — cash, bonds, private and foreign stakes are not disclosed · PUT/CALL tags = options positions (share-equivalents), not shares held
| # | Issuer | Shares | Value | % of book |
|---|---|---|---|---|
| 1 | MTSIMACOM TECHNOLOGY SOLUTIONS H | 634,742 | $241.4M | 1.9% |
| 2 | AEISADVANCED ENERGY INDUSTRIES | 577,834 | $215.5M | 1.7% |
| 3 | SPXCSPX TECHNOLOGIES INC | 713,791 | $175.0M | 1.4% |
| 4 | STRLSTERLING INFRASTRUCTURE INC | 197,645 | $165.9M | 1.3% |
| 5 | ITTITT INC | 764,125 | $151.1M | 1.2% |
| 6 | NOVTNOVANTA INC | 897,268 | $145.6M | 1.1% |
| 7 | RBCRBC BEARINGS INC | 224,336 | $144.5M | 1.1% |
| 8 | MOG/AMOOG INC-CLASS A | 311,540 | $132.0M | 1% |
| 9 | ENTGENTEGRIS INC | 696,739 | $125.3M | 1% |
| 10 | APGAPI GROUP CORP | 3.0M | $125.2M | 1% |
| 11 | TXRHTEXAS ROADHOUSE INC | 644,226 | $124.5M | 1% |
| 12 | FSSFEDERAL SIGNAL CORP | 926,454 | $119.0M | 0.9% |
| 13 | FNFABRINET | 210,752 | $118.5M | 0.9% |
| 14 | POWLPOWELL INDUSTRIES INC | 410,122 | $117.4M | 0.9% |
| 15 | GMEDGLOBUS MEDICAL INC - A | 1.5M | $114.8M | 0.9% |
| 16 | COHRCOHERENT CORP | 285,545 | $112.6M | 0.9% |
| 17 | GTESGATES INDUSTRIAL CORP PLC | 3.8M | $107.0M | 0.8% |
| 18 | HALOHALOZYME THERAPEUTICS INC | 1.4M | $106.0M | 0.8% |
| 19 | PFGCPERFORMANCE FOOD GROUP CO | 927,410 | $103.7M | 0.8% |
| 20 | BURLBURLINGTON STORES INC | 324,761 | $102.9M | 0.8% |
| 21 | AVGOBROADCOM INC | 272,092 | $102.8M | 0.8% |
| 22 | IDAIDACORP INC | 668,455 | $101.1M | 0.8% |
| 23 | MSFTMICROSOFT CORP | 269,177 | $100.4M | 0.8% |
| 24 | UMBFUMB FINANCIAL CORP | 672,465 | $96.0M | 0.8% |
| 25 | NBIXNEUROCRINE BIOSCIENCES INC | 567,421 | $95.6M | 0.7% |
| 26 | CVCOCAVCO INDUSTRIES INC | 153,439 | $94.3M | 0.7% |
| 27 | ESIELEMENT SOLUTIONS INC | 1.9M | $92.5M | 0.7% |
| 28 | MEDPMEDPACE HOLDINGS INC | 172,696 | $91.5M | 0.7% |
| 29 | NDSNNORDSON CORP | 293,653 | $88.6M | 0.7% |
| 30 | LOPEGRAND CANYON EDUCATION INC | 616,654 | $88.3M | 0.7% |
| 31 | VOYAVOYA FINANCIAL INC | 964,138 | $87.3M | 0.7% |
| 32 | AITAPPLIED INDUSTRIAL TECH INC | 257,886 | $87.2M | 0.7% |
| 33 | SFSTIFEL FINANCIAL CORP | 1.2M | $87.0M | 0.7% |
| 34 | FIXCOMFORT SYSTEMS USA INC | 43,819 | $86.9M | 0.7% |
| 35 | JBLJABIL INC | 219,538 | $84.6M | 0.7% |
| 36 | JAZZJAZZ PHARMACEUTICALS PLC | 350,667 | $84.5M | 0.7% |
| 37 | BBIOBRIDGEBIO PHARMA INC | 1.1M | $83.8M | 0.7% |
| 38 | SEISOLARIS ENERGY INFRASTRUCTUR | 1.0M | $83.5M | 0.7% |
| 39 | VCYTVERACYTE INC | 1.4M | $83.2M | 0.7% |
| 40 | RHPRYMAN HOSPITALITY PROPERTIES | 615,786 | $79.2M | 0.6% |
| 41 | CYTKCYTOKINETICS INC | 916,107 | $78.0M | 0.6% |
| 42 | LGNDLIGAND PHARMACEUTICALS | 246,883 | $78.0M | 0.6% |
| 43 | DELLDELL TECHNOLOGIES -C | 176,499 | $76.2M | 0.6% |
| 44 | MGYMAGNOLIA OIL & GAS CORP - A | 2.9M | $74.6M | 0.6% |
| 45 | CGNXCOGNEX CORP | 1.0M | $73.9M | 0.6% |
| 46 | BJBJS WHOLESALE CLUB HOLDINGS | 837,052 | $73.0M | 0.6% |
| 47 | CFGCITIZENS FINANCIAL GROUP | 1.0M | $72.4M | 0.6% |
| 48 | PMPHILIP MORRIS INTERNATIONAL | 391,260 | $70.8M | 0.6% |
| 49 | DCODUCOMMUN INC | 381,545 | $70.7M | 0.6% |
| 50 | GBCIGLACIER BANCORP INC | 1.3M | $69.5M | 0.5% |
| 51 | ABBVABBVIE INC | 275,739 | $69.4M | 0.5% |
| 52 | JPMJPMORGAN CHASE & CO | 211,142 | $69.1M | 0.5% |
| 53 | VCELVERICEL CORP | 1.6M | $69.0M | 0.5% |
| 54 | RPMRPM INTERNATIONAL INC | 619,997 | $68.9M | 0.5% |
| 55 | MTDRMATADOR RESOURCES CO | 1.4M | $68.6M | 0.5% |
| 56 | INSMINSMED INC | 629,760 | $67.1M | 0.5% |
| 57 | NVDANVIDIA CORP | 329,277 | $65.9M | 0.5% |
| 58 | DORMDORMAN PRODUCTS INC | 481,630 | $65.7M | 0.5% |
| 59 | SMTCSEMTECH CORP | 405,585 | $65.6M | 0.5% |
| 60 | CRNXCRINETICS PHARMACEUTICALS IN | 1.7M | $64.8M | 0.5% |
| 61 | VIAVVIAVI SOLUTIONS INC | 1.4M | $64.5M | 0.5% |
| 62 | LEVILEVI STRAUSS & CO- CLASS A | 2.6M | $64.1M | 0.5% |
| 63 | AIZASSURANT INC | 237,825 | $63.9M | 0.5% |
| 64 | NTRANATERA INC | 231,308 | $62.8M | 0.5% |
| 65 | KWRQUAKER HOUGHTON | 392,247 | $62.3M | 0.5% |
| 66 | PIPRPIPER SANDLER COS | 861,276 | $62.3M | 0.5% |
| 67 | EXPEAGLE MATERIALS INC | 276,835 | $62.3M | 0.5% |
| 68 | AUBATLANTIC UNION BANKSHARES CO | 1.5M | $62.1M | 0.5% |
| 69 | MSMORGAN STANLEY | 288,780 | $60.4M | 0.5% |
| 70 | WTFCWINTRUST FINANCIAL CORP | 373,649 | $60.1M | 0.5% |
| 71 | PNFPPINNACLE FINANCIAL PARTNERS | 593,062 | $59.8M | 0.5% |
| 72 | LECOLINCOLN ELECTRIC HOLDINGS | 224,077 | $59.5M | 0.5% |
| 73 | IONSIONIS PHARMACEUTICALS INC | 746,966 | $59.2M | 0.5% |
| 74 | SAILSAILPOINT INC | 4.0M | $58.8M | 0.5% |
| 75 | CHDNCHURCHILL DOWNS INC | 653,447 | $58.6M | 0.5% |
| 76 | TSMTAIWAN SEMICONDUCTOR-SP ADR | 120,619 | $57.6M | 0.5% |
| 77 | HQYHEALTHEQUITY INC | 632,382 | $57.1M | 0.4% |
| 78 | EGPEASTGROUP PROPERTIES INC | 274,429 | $55.6M | 0.4% |
| 79 | CRDOCREDO TECHNOLOGY GROUP HOLDI | 203,708 | $55.4M | 0.4% |
| 80 | CFRCULLEN/FROST BANKERS INC | 355,565 | $54.9M | 0.4% |
| 81 | CECOCECO ENVIRONMENTAL CORP | 601,544 | $54.6M | 0.4% |
| 82 | GOOGLALPHABET INC-CL A | 152,624 | $54.5M | 0.4% |
| 83 | ALLEALLEGION PLC | 386,022 | $54.2M | 0.4% |
| 84 | SITESITEONE LANDSCAPE SUPPLY INC | 471,553 | $54.0M | 0.4% |
| 85 | CSWCSW INDUSTRIALS INC | 191,870 | $53.4M | 0.4% |
| 86 | LGNLEGENCE CORP-CL A | 590,365 | $50.3M | 0.4% |
| 87 | RAREULTRAGENYX PHARMACEUTICAL IN | 1.5M | $49.5M | 0.4% |
| 88 | BIOBIO-RAD LABORATORIES-A | 166,905 | $49.0M | 0.4% |
| 89 | TXNTEXAS INSTRUMENTS INC | 163,567 | $48.8M | 0.4% |
| 90 | ETRENTERGY CORP | 421,755 | $48.4M | 0.4% |
| 91 | ABCBAMERIS BANCORP | 535,106 | $48.3M | 0.4% |
| 92 | SUPNSUPERNUS PHARMACEUTICALS INC | 1.0M | $48.2M | 0.4% |
| 93 | AVNTAVIENT CORP | 1.3M | $48.0M | 0.4% |
| 94 | SBCFSEACOAST BANKING CORP/FL | 1.4M | $47.9M | 0.4% |
| 95 | SKYCHAMPION HOMES INC | 542,381 | $47.8M | 0.4% |
| 96 | KNSLKINSALE CAPITAL GROUP INC | 142,599 | $47.0M | 0.4% |
| 97 | HLIHOULIHAN LOKEY INC | 349,700 | $46.9M | 0.4% |
| 98 | ITGRINTEGER HOLDINGS CORP | 497,676 | $46.5M | 0.4% |
| 99 | ORIOLD REPUBLIC INTL CORP | 1.1M | $46.5M | 0.4% |
| 100 | ALGMALLEGRO MICROSYSTEMS INC | 666,812 | $46.4M | 0.4% |
Source: SEC Form 13F-HR, reporting period 2026-06-30. Values are the manager's filed June-30-style quarter-end marks, not live prices. Research, not investment advice.