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Super Investors GW&K Investment Management, LLC
GI

GW&K Investment Management, LLC

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$12.8B
Positions
1109
Quarter ended
June 30, 2026
Filed
August 12, 2026

Reported portfolio value by quarter (53 quarters reported)

$12.8B $2.7B
Q2 13 Q1 16 Q4 18 Q3 21 Q2 24 Q2 26

$2.7B in Q2 2013 → $12.8B now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
MT Macom Technology Solutions H 1.9% Trimmed 24% 634,742 $241M
Advanced Energy Industries 1.7% Trimmed 3.9% 577,834 $215M
Spx Technologies Inc 1.4% Added 5.7% 713,791 $175M
Sterling Infrastructure Inc 1.3% Trimmed 35% 197,645 $166M
Itt Inc 1.2% Trimmed 4.1% 764,125 $151M
Novanta Inc 1.1% Added 4.5% 897,268 $146M
Rbc Bearings Inc 1.1% Trimmed 20% 224,336 $144M
MI Moog Inc-class A 1.0% Trimmed 5.3% 311,540 $132M
Entegris Inc 1.0% Trimmed 5.7% 696,739 $125M
Api Group Corp 1.0% Trimmed 5.0% 2,956,543 $125M
Texas Roadhouse Inc 1.0% Added 0.8% 644,226 $124M
Federal Signal Corp 0.9% Trimmed 3.3% 926,454 $119M
Fabrinet 0.9% Added 64% 210,752 $118M
Powell Industries Inc 0.9% Added 105% 410,122 $117M
GM Globus Medical Inc - A 0.9% Trimmed 2.8% 1,453,206 $115M
Coherent Corp 0.9% Trimmed 0.6% 285,545 $113M
Gates Industrial Corp PLC 0.8% Trimmed 5.0% 3,826,871 $107M
Halozyme Therapeutics Inc 0.8% Trimmed 2.9% 1,353,883 $106M
Performance Food Group Co 0.8% Trimmed 4.1% 927,410 $104M
Burlington Stores Inc 0.8% Trimmed 4.3% 324,761 $103M
Broadcom Inc 0.8% Trimmed 19% 272,092 $103M
Idacorp Inc 0.8% Trimmed 4.5% 668,455 $101M
Microsoft Corp 0.8% Trimmed 1.3% 269,177 $100M
Umb Financial Corp 0.8% Trimmed 4.1% 672,465 $96M
Neurocrine Biosciences Inc 0.7% Trimmed 4.4% 567,421 $95.6M
Cavco Industries Inc 0.7% Trimmed 6.0% 153,439 $94.3M
Element Solutions Inc 0.7% Trimmed 6.7% 1,937,614 $92.5M
Medpace Holdings Inc 0.7% Trimmed 5.5% 172,696 $91.5M
Nordson Corp 0.7% Trimmed 6.1% 293,653 $88.6M
Grand Canyon Education Inc 0.7% Trimmed 15% 616,654 $88.3M
Voya Financial Inc 0.7% Trimmed 5.4% 964,138 $87.3M
AI Applied Industrial Tech Inc 0.7% Trimmed 5.0% 257,886 $87.2M
Stifel Financial Corp 0.7% Trimmed 4.6% 1,247,030 $87M
Comfort Systems Usa Inc 0.7% Trimmed 54% 43,819 $86.9M
Jabil Inc 0.7% Trimmed 36% 219,538 $84.6M
Jazz Pharmaceuticals PLC 0.7% Trimmed 5.5% 350,667 $84.5M
Bridgebio Pharma Inc 0.7% Added 17% 1,125,131 $83.8M
SE Solaris Energy Infrastructur 0.7% Trimmed 2.2% 1,038,119 $83.5M
Veracyte Inc 0.7% Trimmed 1.4% 1,416,543 $83.2M
Ryman Hospitality Properties 0.6% Added 74% 615,786 $79.2M
Cytokinetics Inc 0.6% Added 85% 916,107 $78M
Ligand Pharmaceuticals 0.6% Added 65% 246,883 $78M
DT Dell Technologies -c 0.6% Added 15% 176,499 $76.2M
MO Magnolia Oil & Gas Corp - A 0.6% Trimmed 5.3% 2,917,419 $74.6M
Cognex Corp 0.6% Trimmed 5.7% 1,020,371 $73.9M
BW Bjs Wholesale Club Holdings 0.6% Added 12% 837,052 $73M
Citizens Financial Group 0.6% Trimmed 1.6% 1,033,943 $72.4M
Philip Morris International 0.6% Trimmed 1.6% 391,260 $70.8M
Ducommun Inc 0.6% Added 22% 381,545 $70.7M
Glacier Bancorp Inc 0.5% Trimmed 4.3% 1,348,072 $69.5M
Abbvie Inc 0.5% Trimmed 11% 275,739 $69.4M
Jpmorgan Chase & Co 0.5% Trimmed 1.6% 211,142 $69.1M
Vericel Corp 0.5% Trimmed 4.1% 1,550,497 $69M
Rpm International Inc 0.5% Trimmed 4.0% 619,997 $68.9M
Matador Resources Co 0.5% Trimmed 12% 1,377,394 $68.6M
Insmed Inc 0.5% Added 1.1% 629,760 $67.1M
Nvidia Corp 0.5% Trimmed 0.7% 329,277 $65.9M
Dorman Products Inc 0.5% Trimmed 6.2% 481,630 $65.7M
Semtech Corp 0.5% Trimmed 15% 405,585 $65.6M
CP Crinetics Pharmaceuticals In 0.5% Added 6.9% 1,731,140 $64.8M

Showing top 60 of 1109 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 12, 2026

Company Action Shares changed Value of change % of portfolio
Comfort Systems Usa Inc Trimmed −51,855 −$103M 0.7%
Sterling Infrastructure Inc Trimmed −107,091 −$89.9M 1.3%
MT Macom Technology Solutions H Trimmed −204,320 −$77.7M 1.9%
CT Credo Technology Group Holdi Trimmed −230,062 −$62.6M 0.4%
Powell Industries Inc Added +209,587 +$60M 0.9%
Ceco Environmental Corp New +601,544 +$54.6M 0.4%
Jabil Inc Trimmed −125,753 −$48.5M 0.7%
Thermon Group Holdings Inc Exited −952,518 −$48M —
Fabrinet Added +82,429 +$46.3M 0.9%
Seagate Technology Holdings Added +45,429 +$43.8M 0.3%

Showing the 10 largest of 996 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 13, 2026

Company Action Shares changed Value of change % of portfolio
PS Piper Sandler Cos Exited −296,342 −$101M —
MT Macom Technology Solutions H Trimmed −378,873 −$84.1M 1.6%
PS Piper Sandler Cos New +915,843 +$70.1M 0.6%
Coherent Corp New +287,335 +$68.4M 0.6%
Fabrinet New +128,323 +$66.9M 0.6%
Tri Pointe Homes Inc Trimmed −1,370,881 −$64.1M 0.2%
Lumentum Holdings Inc Trimmed −82,176 −$57.4M —
Pinnacle Financial Partners New +545,376 +$47M 0.4%
Rbc Bearings Inc Trimmed −82,457 −$44.8M 1.3%
Pinnacle Financial Partners Exited −451,459 −$44.2M —

Showing the 10 largest of 942 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 11, 2026

Company Action Shares changed Value of change % of portfolio
Comfort Systems Usa Inc Trimmed −63,170 −$59M 0.9%
Novanta Inc Added +480,413 +$57.2M 0.8%
Hologic Inc Trimmed −722,191 −$53.6M —
Csw Industrials Inc New +159,197 +$46.7M 0.4%
CI Ccc Intelligent Solutions Ho Trimmed −5,561,079 −$44.2M 0.1%
ZT Zebra Technologies Corp-cl A Trimmed −181,673 −$44.1M —
VE Viper Energy Inc-cl A New +1,101,472 +$42.6M 0.4%
Ionis Pharmaceuticals Inc Added +522,661 +$41.3M 0.5%
Aerovironment Inc Added +165,106 +$39.9M 0.5%
Natera Inc Trimmed −169,507 −$38.8M 0.5%

Showing the 10 largest of 836 changes.

Q3 2025

quarter ended September 30, 2025 · filed November 12, 2025

Company Action Shares changed Value of change % of portfolio
CS Cyberark Software Ltd/israel Trimmed −249,012 −$120M 0.3%
Insmed Inc Trimmed −672,513 −$96.9M 0.8%
Chart Industries Inc Trimmed −440,303 −$88.1M —
MI Moog Inc-class A New +298,846 +$62.1M 0.5%
Broadcom Inc Trimmed −173,535 −$57.3M 1.2%
Idex Corp Trimmed −318,147 −$51.8M 0.1%
Viper Energy Inc Exited −1,138,914 −$43.4M —
Sterling Infrastructure Inc Trimmed −125,994 −$42.8M 0.8%
Advanced Energy Industries Added +237,895 +$40.5M 1.1%
LS Levi Strauss & Co- Class A New +1,687,636 +$39.3M 0.3%

Showing the 10 largest of 817 changes.

Q2 2025

quarter ended June 30, 2025 · filed August 11, 2025

Company Action Shares changed Value of change % of portfolio
Silicon Laboratories Inc Trimmed −674,750 −$99.4M —
Jabil Inc Added +279,936 +$61.1M 0.5%
Sailpoint Inc Added +2,412,801 +$55.2M 0.5%
Springworks Therapeutics Inc Trimmed −864,464 −$40.5M —
Pool Corp Added +129,930 +$37.9M 0.4%
Hexcel Corp Trimmed −631,188 −$35.7M —
Allegion PLC Added +241,198 +$34.8M 0.3%
Toro Co Trimmed −476,031 −$33.6M 0.1%
Antero Resources Corp New +747,098 +$30.1M 0.3%
SI Servicetitan Inc-a New +278,554 +$29.9M 0.3%

Showing the 10 largest of 906 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 05, 2025

Company Action Shares changed Value of change % of portfolio
IT Intra-cellular Therapies Inc Trimmed −1,246,353 −$164M 0.2%
CS Cyberark Software Ltd/israel Trimmed −137,417 −$46.4M 1.0%
Unitedhealth Group Inc Trimmed −65,478 −$34.3M 0.2%
Ftai Aviation Ltd New +278,873 +$31M 0.3%
Championx Corp Trimmed −1,014,784 −$30.2M 0.2%
Citizens Financial Group Added +725,919 +$29.7M 0.3%
Rtx Corp Added +221,438 +$29.3M 0.3%
Powell Industries Inc New +164,292 +$28M 0.3%
Kinsale Capital Group Inc Added +53,064 +$25.8M 0.8%
S&P Global Inc Trimmed −50,597 −$25.7M —

Showing the 10 largest of 887 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 05, 2025

Company Action Shares changed Value of change % of portfolio
Cullen/frost Bankers Inc New +347,838 +$46.7M 0.4%
Blackrock Inc New +44,372 +$45.5M 0.4%
Medpace Holdings Inc Added +133,379 +$44.3M 0.8%
Blackrock Finance Inc Exited −45,522 −$43.2M —
Assurant Inc Added +143,945 +$30.7M 0.3%
Insight Enterprises Inc Trimmed −165,694 −$25.2M —
Interface Inc New +1,029,089 +$25.1M 0.2%
Entergy Corp Added +293,027 +$22.2M 0.4%
Manhattan Associates Inc Trimmed −80,806 −$21.8M 0.7%
Gates Industrial Corp PLC Added +1,047,946 +$21.6M 0.9%

Showing the 10 largest of 771 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 07, 2024

Company Action Shares changed Value of change % of portfolio
Broadcom Inc Added +451,943 +$78M 0.7%
Atkore Inc Trimmed −538,575 −$43.9M —
S&P Global Inc Trimmed −78,346 −$40.5M 0.3%
Natera Inc Added +282,839 +$35.9M 0.4%
Ferguson Enterprises Inc New +177,789 +$35.3M 0.3%
FP Ferguson PLC Exited −180,698 −$35M —
Umb Financial Corp Added +319,415 +$33.6M 0.6%
EG Easterly Government Properti Trimmed −2,394,172 −$32.3M —
Polaris Inc Trimmed −388,689 −$31.9M —
Five Below Trimmed −336,660 −$29.7M —

Showing the 10 largest of 834 changes.

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