2026 Q2 Portfolio Activity
In 2026 Q2, GW&K Investment Management, LLC maintained a portfolio of 1117 distinct positions. The most significant new addition was CECO ENVIRONMENTAL CORP, now representing 0.43% of the total fund value. They heavily accumulated shares in PIPER SANDLER COS, increasing the position by 2153090.0%. Conversely, GW&K Investment Management, LLC completely exited their position in PIPER SANDLER COS.
Position History
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Total Positions
1117
Quarter
2026 Q2
Top Holding
MTSI (1.9%)
Top 10 Concentration
12.7%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 1117
GW&K Investment Management, LLC Full Holdings List — 2026 Q2
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MTSI
MACOM TECHNOLOG...
|
Technology | 1.89% | 1.64% |
#1
1
Prev: #2
|
2.8 |
—
|
-204,320 | -24.4% |
P
S
|
634,742 | $241,439 | 2016 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
AEIS
ADVANCED ENERGY...
|
Industrials | 1.68% | 1.71% |
#2
1
Prev: #1
|
2.7 |
—
|
-23,271 | -3.9% |
P
S
|
577,834 | $215,459 | 2024 Q2 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
SPXC
SPX TECHNOLOGIE...
|
Industrials | 1.37% | 1.19% |
#3
2
Prev: #5
|
3.5 |
—
|
38,649 | 5.7% |
P
S
|
713,791 | $175,002 | 2022 Q3 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
STRL
STERLING INFRAS...
|
Industrials | 1.30% | 1.09% |
#4
5
Prev: #9
|
1.0 |
—
|
-107,091 | -35.1% |
P
S
|
197,645 | $165,901 | 2024 Q2 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
ITT
ITT INC
|
Industrials | 1.18% | 1.34% |
#5
1
Prev: #4
|
1.5 |
—
|
-32,621 | -4.1% |
P
S
|
764,125 | $151,115 | 2022 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
NOVT
NOVANTA INC
|
Technology | 1.14% | 0.89% |
#6
11
Prev: #17
|
1.0 |
—
|
38,614 | 4.5% |
P
S
|
897,268 | $145,574 | 2019 Q2 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
RBC
RBC BEARINGS IN...
|
Industrials | 1.13% | 1.35% |
#7
4
Prev: #3
|
0.5 |
—
|
-57,543 | -20.4% |
P
S
|
224,336 | $144,490 | 2011 Q3 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
MOG/A
MOOG INC-CLASS ...
|
Industrials | 1.03% | 0.85% |
#8
15
Prev: #23
|
0.9 |
—
|
-17,409 | -5.3% |
P
S
|
311,540 | $132,045 | 2025 Q3 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
ENTG
ENTEGRIS INC
|
Technology | 0.98% | 0.76% |
#9
19
Prev: #28
|
0.9 |
—
|
-42,317 | -5.7% |
P
S
|
696,739 | $125,316 | 2005 Q3 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
APG
API GROUP CORP
|
Industrials | 0.98% | 1.11% |
#10
2
Prev: #8
|
0.9 |
—
|
-154,399 | -5.0% |
P
S
|
2,956,543 | $125,210 | 2024 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
TXRH
TEXAS ROADHOUSE...
|
Consumer Cyclical | 0.97% | 0.93% |
#11
2
Prev: #13
|
0.9 |
—
|
5,377 | 0.8% |
P
S
|
644,226 | $124,485 | 2010 Q2 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
FSS
FEDERAL SIGNAL ...
|
Industrials | 0.93% | 0.91% |
#12
3
Prev: #15
|
0.9 |
—
|
-31,670 | -3.3% |
P
S
|
926,454 | $119,041 | 2017 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
FN
FABRINET
|
Technology | 0.93% | 0.59% |
#13
31
Prev: #44
|
3.4 |
—
|
82,429 | 64.2% |
P
S
|
210,752 | $118,463 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
POWL
POWELL INDUSTRI...
|
Industrials | 0.92% | 0.96% |
#14
2
Prev: #12
|
3.4 |
—
|
209,587 | 104.5% |
P
S
|
410,122 | $117,444 | 2025 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
GMED
GLOBUS MEDICAL ...
|
Healthcare | 0.90% | 1.14% |
#15
8
Prev: #7
|
0.9 |
—
|
-41,517 | -2.8% |
P
S
|
1,453,206 | $114,818 | 2014 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
COHR
COHERENT CORP
|
Technology | 0.88% | 0.60% |
#16
25
Prev: #41
|
0.9 |
—
|
-1,790 | -0.6% |
P
S
|
285,545 | $112,641 | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
GTES
GATES INDUSTRIA...
|
Industrials | 0.84% | 0.80% |
#17
8
Prev: #25
|
0.8 |
—
|
-201,465 | -5.0% |
P
S
|
3,826,871 | $107,038 | 2021 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
HALO
HALOZYME THERAP...
|
Healthcare | 0.83% | 0.79% |
#18
8
Prev: #26
|
0.8 |
—
|
-39,992 | -2.9% |
P
S
|
1,353,883 | $105,969 | 2020 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
PFGC
PERFORMANCE FOO...
|
Consumer Defensive | 0.81% | 0.73% |
#19
11
Prev: #30
|
0.8 |
—
|
-39,489 | -4.1% |
P
S
|
927,410 | $103,676 | 2004 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
BURL
BURLINGTON STOR...
|
Consumer Cyclical | 0.80% | 0.97% |
#20
9
Prev: #11
|
0.8 |
—
|
-14,697 | -4.3% |
P
S
|
324,761 | $102,885 | 2014 Q3 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
AVGO
BROADCOM INC
|
Technology | 0.80% | 0.92% |
#21
7
Prev: #14
|
0.8 |
—
|
-64,697 | -19.2% |
P
S
|
272,092 | $102,783 | 2018 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
IDA
IDACORP INC
|
Utilities | 0.79% | 0.88% |
#22
3
Prev: #19
|
0.8 |
—
|
-31,325 | -4.5% |
P
S
|
668,455 | $101,138 | 2016 Q2 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
MSFT
MICROSOFT CORP
|
Technology | 0.78% | 0.89% |
#23
5
Prev: #18
|
0.8 |
—
|
-3,512 | -1.3% |
P
S
|
269,177 | $100,408 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
UMBF
UMB FINANCIAL C...
|
Financial Services | 0.75% | 0.70% |
#24
7
Prev: #31
|
0.8 |
—
|
-28,722 | -4.1% |
P
S
|
672,465 | $96,002 | 2023 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
NBIX
NEUROCRINE BIOS...
|
Healthcare | 0.75% | 0.69% |
#25
8
Prev: #33
|
0.8 |
—
|
-26,304 | -4.4% |
P
S
|
567,421 | $95,631 | 2016 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
CVCO
CAVCO INDUSTRIE...
|
Consumer Cyclical | 0.74% | 0.70% |
#26
6
Prev: #32
|
0.8 |
—
|
-9,845 | -6.0% |
P
S
|
153,439 | $94,273 | 2016 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
ESI
ELEMENT SOLUTIO...
|
Basic Materials | 0.72% | 0.62% |
#27
10
Prev: #37
|
0.8 |
—
|
-138,550 | -6.7% |
P
S
|
1,937,614 | $92,521 | 2020 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
MEDP
MEDPACE HOLDING...
|
Healthcare | 0.71% | 0.77% |
#28
1
Prev: #27
|
0.8 |
—
|
-10,076 | -5.5% |
P
S
|
172,696 | $91,461 | 2020 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
NDSN
NORDSON CORP
|
Industrials | 0.69% | 0.73% |
#29
Prev: #29
|
0.8 |
—
|
-18,940 | -6.1% |
P
S
|
293,653 | $88,594 | 2008 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
LOPE
GRAND CANYON ED...
|
Consumer Defensive | 0.69% | 1.08% |
#30
20
Prev: #10
|
0.8 |
—
|
-107,071 | -14.8% |
P
S
|
616,654 | $88,250 | 2011 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
VOYA
VOYA FINANCIAL ...
|
Financial Services | 0.68% | 0.61% |
#31
9
Prev: #40
|
0.8 |
—
|
-54,900 | -5.4% |
P
S
|
964,138 | $87,284 | 2020 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
AIT
APPLIED INDUSTR...
|
Industrials | 0.68% | 0.64% |
#32
3
Prev: #35
|
0.8 |
—
|
-13,603 | -5.0% |
P
S
|
257,886 | $87,206 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
SF
STIFEL FINANCIA...
|
Financial Services | 0.68% | 0.85% |
#33
11
Prev: #22
|
0.8 |
—
|
-60,715 | -4.6% |
P
S
|
1,247,030 | $87,006 | 2010 Q3 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
FIX
COMFORT SYSTEMS...
|
Industrials | 0.68% | 1.16% |
#34
28
Prev: #6
|
0.3 |
—
|
-51,855 | -54.2% |
P
S
|
43,819 | $86,857 | 2020 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
JBL
JABIL INC
|
Technology | 0.66% | 0.81% |
#35
11
Prev: #24
|
0.3 |
—
|
-125,753 | -36.4% |
P
S
|
219,538 | $84,629 | 2005 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
JAZZ
JAZZ PHARMACEUT...
|
Healthcare | 0.66% | 0.62% |
#36
2
Prev: #38
|
0.8 |
—
|
-20,431 | -5.5% |
P
S
|
350,667 | $84,501 | 2018 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
BBIO
BRIDGEBIO PHARM...
|
Healthcare | 0.65% | 0.63% |
#37
1
Prev: #36
|
2.3 |
—
|
162,488 | 16.9% |
P
S
|
1,125,131 | $83,800 | 2025 Q3 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
SEI
SOLARIS ENERGY ...
|
Energy | 0.65% | 0.53% |
#38
14
Prev: #52
|
0.8 |
—
|
-23,554 | -2.2% |
P
S
|
1,038,119 | $83,527 | 2020 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
VCYT
VERACYTE INC
|
Healthcare | 0.65% | 0.41% |
#39
47
Prev: #86
|
0.8 |
—
|
-20,779 | -1.4% |
P
S
|
1,416,543 | $83,193 | 2019 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
RHP
RYMAN HOSPITALI...
|
Real Estate | 0.62% | 0.29% |
#40
86
Prev: #126
|
3.2 |
—
|
262,197 | 74.2% |
P
S
|
615,786 | $79,160 | 2019 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
CYTK
CYTOKINETICS IN...
|
Healthcare | 0.61% | 0.29% |
#41
86
Prev: #127
|
3.2 |
—
|
421,488 | 85.2% |
P
S
|
916,107 | $78,044 | 2025 Q3 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
LGND
LIGAND PHARMACE...
|
Healthcare | 0.61% | 0.26% |
#42
100
Prev: #142
|
3.2 |
—
|
97,382 | 65.1% |
P
S
|
246,883 | $78,038 | 2021 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
DELL
DELL TECHNOLOGI...
|
Technology | 0.60% | 0.22% |
#43
124
Prev: #167
|
2.2 |
—
|
23,022 | 15.0% |
P
S
|
176,499 | $76,152 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
MGY
MAGNOLIA OIL & ...
|
Energy | 0.58% | 0.86% |
#44
23
Prev: #21
|
0.7 |
—
|
-163,845 | -5.3% |
P
S
|
2,917,419 | $74,627 | 2021 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
CGNX
COGNEX CORP
|
Technology | 0.58% | 0.47% |
#45
22
Prev: #67
|
0.7 |
—
|
-61,343 | -5.7% |
P
S
|
1,020,371 | $73,896 | 1999 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
BJ
BJS WHOLESALE C...
|
Consumer Defensive | 0.57% | 0.65% |
#46
12
Prev: #34
|
2.2 |
—
|
92,726 | 12.5% |
P
S
|
837,052 | $73,008 | 2000 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
CFG
CITIZENS FINANC...
|
Financial Services | 0.57% | 0.56% |
#47
2
Prev: #49
|
0.7 |
—
|
-16,692 | -1.6% |
P
S
|
1,033,943 | $72,448 | 2022 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
PM
PHILIP MORRIS I...
|
Consumer Defensive | 0.55% | 0.58% |
#48
3
Prev: #45
|
0.7 |
—
|
-6,463 | -1.6% |
P
S
|
391,260 | $70,783 | 2008 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
DCO
DUCOMMUN INC
|
Industrials | 0.55% | 0.34% |
#49
62
Prev: #111
|
2.7 |
—
|
69,512 | 22.3% |
P
S
|
381,545 | $70,667 | 2023 Q4 | 13F Filing | 2026-06-30 | 2026-08-12 | |||
|
GBCI
GLACIER BANCORP...
|
Financial Services | 0.54% | 0.55% |
#50
Prev: #50
|
0.7 |
—
|
-61,029 | -4.3% |
P
S
|
1,348,072 | $69,534 | 2009 Q1 | 13F Filing | 2026-06-30 | 2026-08-12 |
Showing 1-50 of 1117 holdings