2026 Q1 Portfolio Activity
In 2026 Q1, GW&K Investment Management, LLC maintained a portfolio of 1040 distinct positions. The most significant new addition was COHERENT CORP, now representing 0.60% of the total fund value. They heavily accumulated shares in PIPER SANDLER COS, increasing the position by 1453619.0%. Conversely, GW&K Investment Management, LLC completely exited their position in PIPER SANDLER COS.
Position History
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Total Positions
1040
Quarter
2026 Q1
Top Holding
AEIS (1.7%)
Top 10 Concentration
12.8%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 1040
GW&K Investment Management, LLC Full Holdings List — 2026 Q1
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
AEIS
ADVANCED ENERGY...
|
Industrials | 1.71% | 1.23% |
#1
4
Prev: #5
|
3.2 |
—
|
-80,455 | -11.8% |
P
S
|
601,105 | $193,984 |
$133.93
+187.0%
|
2024 Q2 | 13F Filing | 2026-03-31 | 2026-05-13 | ||
|
MTSI
MACOM TECHNOLOG...
|
Technology | 1.64% | 1.80% |
#2
1
Prev: #1
|
2.2 |
—
|
-378,873 | -31.1% |
P
S
|
839,062 | $186,332 |
$50.72
+672.9%
|
2016 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | ||
|
RBC
RBC BEARINGS IN...
|
Industrials | 1.35% | 1.41% |
#3
1
Prev: #2
|
1.5 |
—
|
-82,457 | -22.6% |
P
S
|
281,879 | $153,098 |
$84.11
+665.9%
|
2011 Q3 | 13F Filing | 2026-03-31 | 2026-05-13 | ||
|
ITT
ITT INC
|
Industrials | 1.34% | 1.29% |
#4
1
Prev: #3
|
1.5 |
—
|
-63,941 | -7.4% |
P
S
|
796,746 | $151,806 | 2022 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
SPXC
SPX TECHNOLOGIE...
|
Industrials | 1.19% | 0.91% |
#5
7
Prev: #12
|
3.5 |
—
|
150,891 | 28.8% |
P
S
|
675,142 | $134,989 | 2022 Q3 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
FIX
COMFORT SYSTEMS...
|
Industrials | 1.16% | 0.90% |
#6
7
Prev: #13
|
1.0 |
—
|
-15,973 | -14.3% |
P
S
|
95,674 | $131,941 | 2020 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
GMED
GLOBUS MEDICAL ...
|
Healthcare | 1.14% | 1.14% |
#7
Prev: #7
|
1.0 |
—
|
-21,622 | -1.4% |
P
S
|
1,494,723 | $128,786 | 2014 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
APG
API GROUP CORP
|
Industrials | 1.11% | 1.05% |
#8
1
Prev: #9
|
0.9 |
—
|
-61,728 | -1.9% |
P
S
|
3,110,942 | $126,056 | 2024 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
STRL
STERLING INFRAS...
|
Industrials | 1.09% | 0.83% |
#9
8
Prev: #17
|
0.9 |
—
|
-7,119 | -2.3% |
P
S
|
304,736 | $124,113 | 2024 Q2 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
LOPE
GRAND CANYON ED...
|
Consumer Defensive | 1.08% | 1.06% |
#10
2
Prev: #8
|
0.9 |
—
|
-12,799 | -1.7% |
P
S
|
723,725 | $123,056 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
BURL
BURLINGTON STOR...
|
Consumer Cyclical | 0.97% | 0.85% |
#11
4
Prev: #15
|
0.9 |
—
|
-1,576 | -0.5% |
P
S
|
339,458 | $110,454 | 2014 Q3 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
POWL
POWELL INDUSTRI...
|
Industrials | 0.96% | 0.70% |
#12
19
Prev: #31
|
0.4 |
—
|
-53,985 | -21.2% |
P
S
|
200,535 | $108,508 | 2025 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
TXRH
TEXAS ROADHOUSE...
|
Consumer Cyclical | 0.93% | 0.94% |
#13
2
Prev: #11
|
0.9 |
—
|
-13,818 | -2.1% |
P
S
|
638,849 | $105,501 | 2010 Q2 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
AVGO
BROADCOM INC
|
Technology | 0.92% | 1.18% |
#14
8
Prev: #6
|
0.9 |
—
|
-58,780 | -14.9% |
P
S
|
336,789 | $104,240 | 2018 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
FSS
FEDERAL SIGNAL ...
|
Industrials | 0.91% | 0.53% |
#15
38
Prev: #53
|
3.4 |
—
|
393,462 | 69.7% |
P
S
|
958,124 | $103,612 | 2017 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
INSM
INSMED INC
|
Healthcare | 0.90% | 0.73% |
#16
10
Prev: #26
|
2.9 |
—
|
140,378 | 29.1% |
P
S
|
623,048 | $101,881 | 2020 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
NOVT
NOVANTA INC
|
Technology | 0.89% | 0.76% |
#17
4
Prev: #21
|
2.4 |
—
|
121,700 | 16.5% |
P
S
|
858,654 | $101,416 | 2019 Q2 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
MSFT
MICROSOFT CORP
|
Technology | 0.89% | 1.26% |
#18
14
Prev: #4
|
0.9 |
—
|
-28,255 | -9.4% |
P
S
|
272,689 | $100,941 | 1999 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
IDA
IDACORP INC
|
Utilities | 0.88% | 0.78% |
#19
1
Prev: #18
|
0.9 |
—
|
-17,195 | -2.4% |
P
S
|
699,780 | $100,049 | 2016 Q2 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
MTDR
MATADOR RESOURC...
|
Energy | 0.87% | 0.58% |
#20
20
Prev: #40
|
0.8 |
—
|
-12,964 | -0.8% |
P
S
|
1,558,564 | $98,470 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
MGY
MAGNOLIA OIL & ...
|
Energy | 0.86% | 0.60% |
#21
15
Prev: #36
|
0.8 |
—
|
-88,232 | -2.8% |
P
S
|
3,081,264 | $97,276 | 2021 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
SF
STIFEL FINANCIA...
|
Financial Services | 0.85% | 0.97% |
#22
12
Prev: #10
|
2.8 |
—
|
410,344 | 45.7% |
P
S
|
1,307,745 | $96,668 | 2010 Q3 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
MOG/A
MOOG INC-CLASS ...
|
Industrials | 0.85% | 0.71% |
#23
6
Prev: #29
|
0.8 |
—
|
-7,724 | -2.3% |
P
S
|
328,949 | $96,265 | 2025 Q3 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
JBL
JABIL INC
|
Technology | 0.81% | 0.73% |
#24
3
Prev: #27
|
0.8 |
—
|
-22,583 | -6.1% |
P
S
|
345,291 | $91,721 | 2005 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
GTES
GATES INDUSTRIA...
|
Industrials | 0.80% | 0.84% |
#25
9
Prev: #16
|
0.8 |
—
|
-506,045 | -11.2% |
P
S
|
4,028,336 | $91,080 | 2021 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
HALO
HALOZYME THERAP...
|
Healthcare | 0.79% | 0.73% |
#26
2
Prev: #24
|
2.3 |
—
|
139,227 | 11.1% |
P
S
|
1,393,875 | $90,086 | 2020 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
MEDP
MEDPACE HOLDING...
|
Healthcare | 0.77% | 0.76% |
#27
7
Prev: #20
|
2.3 |
—
|
26,574 | 17.0% |
P
S
|
182,772 | $87,768 | 2020 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
ENTG
ENTEGRIS INC
|
Technology | 0.76% | 0.54% |
#28
19
Prev: #47
|
0.8 |
—
|
-8,813 | -1.2% |
P
S
|
739,056 | $86,648 | 2005 Q3 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
NDSN
NORDSON CORP
|
Industrials | 0.73% | 0.73% |
#29
4
Prev: #25
|
0.8 |
—
|
-37,605 | -10.7% |
P
S
|
312,593 | $83,170 | 2008 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
PFGC
PERFORMANCE FOO...
|
Consumer Defensive | 0.73% | 0.76% |
#30
8
Prev: #22
|
0.8 |
—
|
-6,927 | -0.7% |
P
S
|
966,899 | $82,825 | 2004 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
UMBF
UMB FINANCIAL C...
|
Financial Services | 0.70% | 0.71% |
#31
3
Prev: #28
|
0.8 |
—
|
-17,090 | -2.4% |
P
S
|
701,187 | $79,087 | 2023 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
CVCO
CAVCO INDUSTRIE...
|
Consumer Cyclical | 0.70% | 0.77% |
#32
13
Prev: #19
|
2.3 |
—
|
12,135 | 8.0% |
P
S
|
163,284 | $79,079 | 2016 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
NBIX
NEUROCRINE BIOS...
|
Healthcare | 0.69% | 0.71% |
#33
3
Prev: #30
|
0.8 |
—
|
17,077 | 3.0% |
P
S
|
593,725 | $78,217 | 2016 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
BJ
BJS WHOLESALE C...
|
Consumer Defensive | 0.65% | 0.59% |
#34
4
Prev: #38
|
0.8 |
—
|
-19,269 | -2.5% |
P
S
|
744,326 | $73,257 | 2000 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
AIT
APPLIED INDUSTR...
|
Industrials | 0.64% | 0.48% |
#35
33
Prev: #68
|
2.8 |
—
|
54,980 | 25.4% |
P
S
|
271,489 | $72,033 | 1999 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
BBIO
BRIDGEBIO PHARM...
|
Healthcare | 0.63% | 0.41% |
#36
53
Prev: #89
|
3.3 |
—
|
336,521 | 53.7% |
P
S
|
962,643 | $71,486 | 2025 Q3 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
ESI
ELEMENT SOLUTIO...
|
Basic Materials | 0.62% | 0.52% |
#37
19
Prev: #56
|
0.7 |
—
|
-315,413 | -13.2% |
P
S
|
2,076,164 | $70,880 | 2020 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
JAZZ
JAZZ PHARMACEUT...
|
Healthcare | 0.62% | 0.63% |
#38
4
Prev: #34
|
0.7 |
—
|
-56,546 | -13.2% |
P
S
|
371,098 | $70,157 | 2018 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
N/A
PIPER SANDLER C...
|
|
Unknown | 0.62% | — |
#39
Prev: #—
|
3.7 |
—
|
915,843 | — |
NEW
|
915,843 | $70,108 | — | 13F Filing | 2026-03-31 | 2026-05-13 | ||
|
VOYA
VOYA FINANCIAL ...
|
Financial Services | 0.61% | 0.60% |
#40
3
Prev: #37
|
2.2 |
—
|
94,859 | 10.3% |
P
S
|
1,019,038 | $69,621 | 2020 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
COHR
COHERENT CORP
|
Technology | 0.60% | — |
#41
Prev: #—
|
3.7 |
—
|
287,335 | — |
NEW
|
287,335 | $68,447 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
SITE
SITEONE LANDSCA...
|
Industrials | 0.59% | 0.55% |
#42
3
Prev: #45
|
0.7 |
—
|
-3,742 | -0.7% |
P
S
|
506,764 | $67,456 | 2016 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
ABBV
ABBVIE INC
|
Healthcare | 0.59% | 0.74% |
#43
20
Prev: #23
|
0.7 |
—
|
-65,512 | -17.5% |
P
S
|
309,419 | $67,296 | 2013 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
FN
FABRINET
|
Technology | 0.59% | — |
#44
Prev: #—
|
3.7 |
—
|
128,323 | — |
NEW
|
128,323 | $66,927 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
PM
PHILIP MORRIS I...
|
Consumer Defensive | 0.58% | 0.56% |
#45
1
Prev: #44
|
0.7 |
—
|
-6,033 | -1.5% |
P
S
|
397,723 | $65,760 | 2008 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
RPM
RPM INTERNATION...
|
Basic Materials | 0.57% | 0.51% |
#46
15
Prev: #61
|
2.2 |
—
|
83,434 | 14.8% |
P
S
|
646,163 | $64,229 | 2004 Q3 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
ETR
ENTERGY CORP
|
Utilities | 0.56% | 0.46% |
#47
28
Prev: #75
|
0.7 |
—
|
-9,262 | -1.6% |
P
S
|
568,684 | $63,897 | 2022 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
JPM
JPMORGAN CHASE ...
|
Financial Services | 0.56% | 0.61% |
#48
13
Prev: #35
|
0.7 |
—
|
-2,994 | -1.4% |
P
S
|
214,533 | $63,107 | 2003 Q4 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
CFG
CITIZENS FINANC...
|
Financial Services | 0.56% | 0.54% |
#49
Prev: #49
|
0.7 |
—
|
-16,442 | -1.5% |
P
S
|
1,050,635 | $63,007 | 2022 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 | |||
|
GBCI
GLACIER BANCORP...
|
Financial Services | 0.55% | 0.51% |
#50
10
Prev: #60
|
2.2 |
—
|
76,640 | 5.8% |
P
S
|
1,409,101 | $62,945 | 2009 Q1 | 13F Filing | 2026-03-31 | 2026-05-13 |
Showing 1-50 of 1040 holdings