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GW&K Investment Management, LLC

Form 13F · CIK 1082917. Holdings on 30 Jun 2026, as filed with the SEC on 12 Aug 2026, each set beside the March 2026 quarter. The 13F on the SEC's site.

GW&K Investment Management, LLC reported 1,108 positions worth $12.8B for the June 2026 quarter, on a Form 13F filed 12 Aug 2026; the largest holding was Macom Technology Solutions Holdings, Inc., at 1.9% of the fund.

What it bought and sold

The largest moves since the March 2026 quarter, by the dollars that moved: 116 opened, 332 added, 508 trimmed, 27 sold out.

New position: 116

CompanyValueChange in shares
Ceco Environmental Corp. Com (CECO)$54.6M+601,544
Cactus, Inc. (WHD)$38.5M+750,566
Argan Inc. (AGX)$35.8M+44,796
Archrock, Inc. (AROC)$34.4M+844,364
Sprouts Farmers Market, Inc. (SFM)$18.2M+215,468
Crocs, Inc. (CROX)$17.5M+144,838
Alkermes plc. (ALKS)$15.3M+292,387
Marriott Vacations Worldwide Corp. (VAC)$3.6M+35,508
Pebblebrook Hotel Trust (PEB)$3.4M+176,292
Primo Brands Corp. (PRMB)$3.0M+124,197

Added: 332

CompanyValueChange in shares
Fabrinet (FN)$118.5M+82,429
Dell Technologies Inc. (DELL)$76.2M+23,022
Ligand Pharmaceuticals Inc. (LGND)$78.0M+97,382
Ryman Hospitality Properties, Inc. (RHP)$79.2M+262,197
Cytokinetics Inc. (CYTK)$78.0M+421,488
Novanta Inc. (NOVT)$145.6M+38,614
Seagate Technology Holdings plc (STX)$44.3M+45,429
SPX Technologies, Inc. (SPXC)$175.0M+38,649
Insmed Inc. (INSM)$67.1M+6,712
Darden Restaurants Inc. (DRI)$32.7M+158,697

Trimmed: 508

CompanyValueChange in shares
Macom Technology Solutions Holdings, Inc. (MTSI)$241.4M-204,320
Comfort Systems USA Inc. (FIX)$86.9M-51,855
Coherent Corp. (COHR)$112.6M-1,790
Sterling Infrastructure, Inc. (STRL)$165.9M-107,091
Entegris Inc. (ENTG)$125.3M-42,317
Veracyte, Inc. (VCYT)$83.2M-20,779
Moog Inc. (MOGA)$132.0M-17,409
Grand Canyon Education, Inc. (LOPE)$88.3M-107,071
Matador Resources Co. (MTDR)$68.6M-181,170
Semtech Corp. (SMTC)$65.6M-71,940

Sold out: 27

CompanyValue a quarter beforeChange in shares
Thermon Group Hldgs Inc. (THR)$48.0M-952,518
Tri Pointe Homes Inc. (TPH)$23.9M-510,856
Masimo Corp. (MASI)$21.8M-122,781
Brady Corp. (BRC)$17.9M-220,875
Whitestone REIT (WSR)$16.7M-1,035,745
Verra Mobility Corp. (VRRM)$8.9M-622,633
Xoma Royalty Corporation (XOMA)$7.3M-232,141
Schwab Strategic Trust (SCHD)$79.0K-2,576
SPDR Index SHS FDS (EFAX)$48.0K-962
Firstservice Corp. New (FSV)$48.0K-345

Largest holdings

The 100 largest of 1,108, by value.

CompanyValueOf the fundSharesChange in sharesMove
Macom Technology Solutions Holdings, Inc. (MTSI)$241.4M1.89%634,742-204,320Trimmed
Advanced Energy Industries Inc. (AEIS)$215.5M1.68%577,834-23,271Trimmed
SPX Technologies, Inc. (SPXC)$175.0M1.37%713,791+38,649Added
Sterling Infrastructure, Inc. (STRL)$165.9M1.30%197,645-107,091Trimmed
ITT Inc. (ITT)$151.1M1.18%764,125-32,621Trimmed
Novanta Inc. (NOVT)$145.6M1.14%897,268+38,614Added
RBC Bearings Inc. (RBC)$144.5M1.13%224,336-57,543Trimmed
Moog Inc. (MOGA)$132.0M1.03%311,540-17,409Trimmed
Entegris Inc. (ENTG)$125.3M0.98%696,739-42,317Trimmed
APi Group Corp. (APG)$125.2M0.98%2,956,543-154,399Trimmed
Texas Roadhouse, Inc. (TXRH)$124.5M0.97%644,226+5,377Added
Federal Signal Corp. (FSS)$119.0M0.93%926,454-31,670Trimmed
Fabrinet (FN)$118.5M0.93%210,752+82,429Added
Powell Industries Inc. (POWL)$117.4M0.92%410,122-191,483Trimmed
Globus Medical Inc. (GMED)$114.8M0.90%1,453,206-41,517Trimmed
Coherent Corp. (COHR)$112.6M0.88%285,545-1,790Trimmed
Gates Industrial Corp. Ltd. (GTES)$107.0M0.84%3,826,871-201,465Trimmed
Halozyme Therapeutics, Inc. (HALO)$106.0M0.83%1,353,883-39,992Trimmed
Performance Food Group Co. (PFGC)$103.7M0.81%927,410-39,489Trimmed
Burlington Stores, Inc. (BURL)$102.9M0.80%324,761-14,697Trimmed
Broadcom Inc. (AVGO)$102.8M0.80%272,092-64,697Trimmed
Idacorp Inc. (IDA)$101.1M0.79%668,455-31,325Trimmed
Microsoft Corp. (MSFT)$100.4M0.79%269,177-3,512Trimmed
UMB Financial Corp. (UMBF)$96.0M0.75%672,465-28,722Trimmed
Neurocrine Biosciences Inc. (NBIX)$95.6M0.75%567,421-26,304Trimmed
Cavco Industries, Inc. (CVCO)$94.3M0.74%153,439-9,845Trimmed
Element Solutions Inc. (ESI)$92.5M0.72%1,937,614-138,550Trimmed
Medpace Holdings, Inc. (MEDP)$91.5M0.71%172,696-10,076Trimmed
Nordson Corp. (NDSN)$88.6M0.69%293,653-18,940Trimmed
Grand Canyon Education, Inc. (LOPE)$88.3M0.69%616,654-107,071Trimmed
Voya Financial, Inc. (VOYA)$87.3M0.68%964,138-54,900Trimmed
Applied Industrial Technologies Inc. (AIT)$87.2M0.68%257,886-13,603Trimmed
Stifel Financial Corp. (SF)$87.0M0.68%1,247,030-60,715Trimmed
Comfort Systems USA Inc. (FIX)$86.9M0.68%43,819-51,855Trimmed
Jabil Inc. (JBL)$84.6M0.66%219,538-125,753Trimmed
Jazz Pharmaceuticals plc (JAZZ)$84.5M0.66%350,667-20,431Trimmed
BridgeBio Pharma, Inc. (BBIO)$83.8M0.66%1,125,131+162,488Added
Solaris Energy Infrastructure, Inc. (SEI)$83.5M0.65%1,038,119-23,554Trimmed
Veracyte, Inc. (VCYT)$83.2M0.65%1,416,543-20,779Trimmed
Ryman Hospitality Properties, Inc. (RHP)$79.2M0.62%615,786+262,197Added
Cytokinetics Inc. (CYTK)$78.0M0.61%916,107+421,488Added
Ligand Pharmaceuticals Inc. (LGND)$78.0M0.61%246,883+97,382Added
Dell Technologies Inc. (DELL)$76.2M0.59%176,499+23,022Added
Magnolia Oil & Gas Corp. (MGY)$74.6M0.58%2,917,419-163,845Trimmed
Cognex Corp. (CGNX)$73.9M0.58%1,020,371-61,343Trimmed
BJ's Wholesale Club Holdings, Inc. (BJ)$73.0M0.57%837,052+92,726Added
Citizens Financial Group Inc. (CFG)$72.4M0.57%1,033,943-16,692Trimmed
Philip Morris International Inc. (PM)$70.8M0.55%391,260-6,463Trimmed
Ducommun Inc. (DCO)$70.7M0.55%381,545+69,512Added
Glacier Bancorp, Inc. (GBCI)$69.5M0.54%1,348,072-61,029Trimmed
AbbVie Inc. (ABBV)$69.4M0.54%275,739-33,680Trimmed
JPMorgan Chase & Co. (JPM)$69.1M0.54%211,142-3,391Trimmed
Vericel Corp. (VCEL)$69.0M0.54%1,550,497-66,358Trimmed
RPM International Inc. (RPM)$68.9M0.54%619,997-26,166Trimmed
Matador Resources Co. (MTDR)$68.6M0.54%1,377,394-181,170Trimmed
Insmed Inc. (INSM)$67.1M0.53%629,760+6,712Added
NVIDIA Corp. (NVDA)$65.9M0.52%329,277-2,206Trimmed
Dorman Products, Inc. (DORM)$65.7M0.51%481,630-32,058Trimmed
Semtech Corp. (SMTC)$65.6M0.51%405,585-71,940Trimmed
Crinetics Pharmaceuticals in (CRNX)$64.8M0.51%1,731,140+112,454Added
Viavi Solutions Inc. (VIAV)$64.5M0.50%1,350,233-421,648Trimmed
Levi Strauss & Co. (LEVI)$64.1M0.50%2,582,378-78,138Trimmed
Assurant, Inc. (AIZ)$63.9M0.50%237,825-15,243Trimmed
Natera, Inc. (NTRA)$62.8M0.49%231,308-10,712Trimmed
Quaker Chemical Corp. (KWR)$62.3M0.49%392,247-3,718Trimmed
Piper Sandler Companies (PIPR)$62.3M0.49%861,276-54,567Trimmed
Eagle Materials Inc. (EXP)$62.3M0.49%276,835-14,982Trimmed
Atlantic Union Bankshares Corp. (AUB)$62.1M0.48%1,466,606-95,505Trimmed
Morgan Stanley (MS)$60.4M0.47%288,780-4,688Trimmed
Wintrust Financial Corp. (WTFC)$60.1M0.47%373,649-25,386Trimmed
Pinnacle Financial Partners, Inc. (PNFP)$59.8M0.47%593,062+47,686Added
Lincoln Electric Holdings Inc. (LECO)$59.5M0.47%224,077-12,139Trimmed
Ionis Pharmaceuticals Inc. (IONS)$59.2M0.46%746,966-32,383Trimmed
SailPoint, Inc. (SAIL)$58.8M0.46%4,017,925+929,975Added
Churchill Downs Inc. (CHDN)$58.6M0.46%653,447-14,951Trimmed
Taiwan Semiconductor Manufacturing Company Limited (TSM)$57.6M0.45%120,619+13,343Added
Healthequity, Inc. (HQY)$57.1M0.45%632,382+168,067Added
Eastgroup Properties Inc. (EGP)$55.6M0.43%274,429-11,026Trimmed
Credo Technology Group Holding Ltd. (CRDO)$55.4M0.43%203,708-230,062Trimmed
Cullen/Frost Bankers, Inc. (CFR)$54.9M0.43%355,565-20,612Trimmed
Ceco Environmental Corp. Com (CECO)$54.6M0.43%601,544+601,544New position
Alphabet Inc. (GOOGL)$54.5M0.43%152,624-1,063Trimmed
Allegion plc (ALLE)$54.2M0.42%386,022+64,919Added
SiteOne Landscape Supply, Inc. (SITE)$54.0M0.42%471,553-35,211Trimmed
CSW Industrials, Inc. (CSW)$53.4M0.42%191,870+18,691Added
Legence Corp. (LGN)$50.3M0.39%590,365-12,768Trimmed
Ultragenyx Pharmaceutical Inc. (RARE)$49.5M0.39%1,481,178-134,248Trimmed
Bio-Rad Laboratories, Inc. (BIO)$49.0M0.38%166,905-7,803Trimmed
Texas Instruments Inc. (TXN)$48.8M0.38%163,567+6,751Added
Entergy Corp. (ETR)$48.4M0.38%421,755-146,929Trimmed
Ameris Bancorp (ABCB)$48.3M0.38%535,106-9,800Trimmed
Supernus Pharmaceuticals, Inc. (SUPN)$48.2M0.38%1,037,242-17,942Trimmed
Avient Corp. (AVNT)$48.0M0.38%1,299,448-17,844Trimmed
Seacoast Banking Corp. of Florida (SBCF)$47.9M0.37%1,441,055-13,690Trimmed
Champion Homes, Inc. (SKY)$47.8M0.37%542,381-4,555Trimmed
Kinsale Capital Group, Inc. (KNSL)$47.0M0.37%142,599-7,984Trimmed
Houlihan Lokey, Inc. (HLI)$46.9M0.37%349,700-4,395Trimmed
Integer Holdings Corp. (ITGR)$46.5M0.36%497,676-30,267Trimmed
Old Republic International Corp. (ORI)$46.5M0.36%1,135,463-16,646Trimmed
Allegro Microsystems, Inc. (ALGM)$46.4M0.36%666,812+7,236Added

Every quarter it filed

What the fund reported and how many positions it held, each quarter since September 2024.

QuarterReported valuePositions
June 2026 quarter$12.8B1,109
March 2026 quarter$11.3B1,020
December 2025 quarter$11.6B997
September 2025 quarter$11.3B1,000
June 2025 quarter$11.2B992
March 2025 quarter$10.8B1,011
December 2024 quarter$11.8B973
September 2024 quarter$11.7B960
Every 13F fund · Fund holdings data