Terminal · Institutions

Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.

GW&K Investment Management, LLC 13F Holdings -- Portfolio & Top Positions (2026-06-30)

GW&K Investment Management, LLC (CIK 1082917) reported $12.80B across 1,107 reported positions in its SEC 13F filing for 2026-06-30. Largest positions: MTSI ($241.4M, 1.89%), AEIS ($215.5M, 1.68%), SPXC ($175.0M, 1.37%), STRL ($165.9M, 1.30%), ITT ($151.1M, 1.18%). Source: SEC Form 13F.

RankTickerCompanyValue% PortfolioSharesAction
1MTSIMACOM TECHNOLOGY SOLUTIONS H$241.4M1.89%634,742Trimmed
2AEISADVANCED ENERGY INDUSTRIES$215.5M1.68%577,834Trimmed
3SPXCSPX TECHNOLOGIES INC$175.0M1.37%713,791Added
4STRLSTERLING INFRASTRUCTURE INC$165.9M1.30%197,645Trimmed
5ITTITT INC$151.1M1.18%764,125Trimmed
6NOVTNOVANTA INC$145.6M1.14%897,268Added
7RBCRBC BEARINGS INC$144.5M1.13%224,336Trimmed
8MOGAMOOG INC-CLASS A$132.0M1.03%311,540Trimmed
9ENTGENTEGRIS INC$125.3M0.98%696,739Trimmed
10APGAPI GROUP CORP$125.2M0.98%3.0MTrimmed
11TXRHTEXAS ROADHOUSE INC$124.5M0.97%644,226Added
12FNFABRINET$118.5M0.93%210,752Added
13FSSFEDERAL SIGNAL CORP$119.0M0.93%926,454Trimmed
14POWLPOWELL INDUSTRIES INC$117.4M0.92%410,122Added
15GMEDGLOBUS MEDICAL INC - A$114.8M0.90%1.5MTrimmed
16COHRCOHERENT CORP$112.6M0.88%285,545Trimmed
17GTESGATES INDUSTRIAL CORP PLC$107.0M0.84%3.8MTrimmed
18HALOHALOZYME THERAPEUTICS INC$106.0M0.83%1.4MTrimmed
19PFGCPERFORMANCE FOOD GROUP CO$103.7M0.81%927,410Trimmed
20BURLBURLINGTON STORES INC$102.9M0.80%324,761Trimmed
21AVGOBROADCOM INC$102.8M0.80%272,092Trimmed
22IDAIDACORP INC$101.1M0.79%668,455Trimmed
23MSFTMICROSOFT CORP$100.4M0.78%269,177Trimmed
24UMBFUMB FINANCIAL CORP$96.0M0.75%672,465Trimmed
25NBIXNEUROCRINE BIOSCIENCES INC$95.6M0.75%567,421Trimmed

Source: SEC Form 13F filings · as of 2026-06-30