GW&K Investment Management portfolio
Type not verifiedPortfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 12, 2026 · data updated on Nov 5, 2026 · Q2 2026 13F (filing) ↗ · all its 13F filings ↗
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
GW&K Investment Management reported a $12.8 bn portfolio of 1,079 companies (1,084 positions, counting each share class separately) to the SEC as of the end of Q2 2026. Its largest positions are MTSI, AEIS, SPXC.
Sections with a free account
What changed this quarter
866 positions with a change (96 new, 306 added to, 442 trimmed, 22 sold); also, 5 exited through an acquisition or merger, 1 entered through a spin-off. 3 are listed here: those of 0.5 points of the portfolio or more (up to 12).
- Comfort Systems USA−54%fewer sharesReduced1.2% → 0.7%
- Sterling Infrastructure−35%fewer sharesReduced1.1% → 1.3%
- MACOM Technology Solutions Holdings−24%fewer sharesReduced1.6% → 1.9%
The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.
Top holdings
- MACOM Technology Solutions HoldingsMTSI1.9%
- Advanced Energy IndustriesAEIS1.7%
- SPX TechnologiesSPXC1.4%
- Sterling InfrastructureSTRL1.3%
- ITTITT1.2%
- NovantaNOVT1.1%
- RBC BearingsRBC1.1%
- MoogMOG/A1.0%
- EntegrisENTG1.0%
- APi GroupAPG1.0%
- Texas RoadhouseTXRH1.0%
- Federal SignalFSS0.9%
- FabrinetFN0.9%
- Powell IndustriesPOWL0.9%
- Globus MedicalGMED0.9%
Portfolio by sector
- ● Information Technology 20%
- ● Industrials 19%
- ● Health Care 16%
- ● Financials 14%
- ● Consumer Discretionary 11%
- ● Materials 5%
- ● Energy 5%
- ● Consumer Staples 3%
- ● Real Estate 3%
- ● Utilities 2%
- ● No sector 1%
- ● Communication Services 1%
Stakes above 5% (13D/13G)
Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.
How we classify it
Type not verified: we have not assigned a type because we found no document that is enough to tell. Most 13F filers are in this situation: we only review in depth those that meet the portfolio criteria.
Not counted as a concentrated manager: its portfolio is not within 5 to 100 positions; its top 10 positions are under 45%. Its portfolio is shown all the same, but it is left out of manager counts, the consensus and the ranking. How this is decided
Managers of a similar size
A 13F portfolio value between a third and three times this one, whatever the type of filer. It is not a comparison of what they hold.
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