GW&K Investment Management, LLC

CIK

1082917

Location

BOSTON, MA

Portfolio Value

Mid $1,703,217,109

Diversification

Diversified

Filing Date

Global Rank

#398 / 8,586 ▲ 2

Top Industry

Biotechnology 6.3%

3Y Alpha vs SPY

-6.9%

Period ended 3 months ago

Filed May 13, 2026 · 34d

25 quarters · since Mar 2020

Clone Performance

Jun 2023–Jun 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+49.3%

SPY

+78.1%

Annualised alpha

-6.9%

Max drawdown

−24.1%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

920 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

1.7%

−0.1 pts

Top 5

7.4%

+0.2 pts

Top 10

13.1%

+0.4 pts

HHI

Diversified+3

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Industrials	23.2%	$2,579,396,701	133
Healthcare	16.1%	$1,784,263,271	120
Technology	15.3%	$1,703,217,109	141
Financial Services	14.0%	$1,553,344,638	143
Consumer Cyclical	10.9%	$1,205,993,592	116
Energy	5.2%	$580,316,539	45
Consumer Defensive	4.6%	$514,650,018	52
Basic Materials	4.5%	$495,188,401	42
Real Estate	2.9%	$325,000,019	50
Utilities	2.6%	$285,163,020	40
Communication Services	0.6%	$64,425,713	30
Unclassified	0.1%	$6,205,235	8

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
LEVI	Levi Strauss & Co	+440,917	2,660,516	$49,192,940
SF	Stifel Financial Corp	+410,344	1,307,745	$96,668,510
WMB	Williams Companies, Inc.	+404,422	405,271	$29,495,623
MCHP	Microchip Technology Inc	+404,220	405,635	$26,208,077
FSS	Federal Signal Corp /De/	+393,462	958,124	$103,611,528
BBIO	BridgeBio Pharma, Inc.	+336,521	962,643	$71,485,868
VCYT	Veracyte, Inc.	+297,239	1,437,322	$46,296,141
IRT	Independence Realty Trust, Inc.	+283,793	1,591,880	$23,703,092
PWP	Perella Weinberg Partners	+256,511	1,054,005	$19,140,730
RARE	Ultragenyx Pharmaceutical Inc.	+240,019	1,615,426	$33,843,174
CDRE	Cadre Holdings, Inc.	+222,249	1,047,176	$32,127,359
VVV	Valvoline Inc	+207,911	516,467	$17,394,608
GPC	Genuine Parts Co	+170,162	170,257	$18,004,677
EPAC	Enerpac Tool Group Corp	+157,868	943,136	$34,396,169
TXN	Texas Instruments Inc	+155,938	156,816	$30,444,258
DELL	Dell Technologies Inc.	+152,877	153,477	$25,190,180
SPXC	SPX Technologies, Inc.	+150,891	675,142	$134,987,890
CRNX	Crinetics Pharmaceuticals, Inc.	+142,361	1,618,686	$58,790,674
INSM	INSMED Inc	+140,378	623,048	$101,880,808
HALO	Halozyme Therapeutics, Inc.	+139,227	1,393,875	$90,086,140
NOVT	Novanta Inc	+121,700	858,654	$101,415,623
ARES	Ares Management Corp	+117,330	117,898	$12,862,671
PHAT	Phathom Pharmaceuticals, Inc.	+114,431	1,421,109	$15,788,520
LGN	Legence Corp.	+111,628	603,133	$34,052,889
ACHC	Acadia Healthcare Company, Inc.	+104,608	354,966	$8,302,654
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
TPH	Tri Pointe Homes, Inc.	−1,370,881	510,856	$23,872,300
COLB	Columbia Banking System, Inc.	−865,317	85,482	$2,344,770
THRM	Gentherm Inc	−854,946	1,351	$37,530
VIAV	Viavi Solutions Inc.	−781,908	1,771,881	$58,968,199
THR	Thermon Group Holdings, Inc.	−674,739	952,518	$48,006,907
AZTA	Azenta, Inc.	−576,845	973,256	$20,564,899
KD	Kyndryl Holdings, Inc.	−517,917	58	$760
SNDR	Schneider National, Inc.	−517,322	1,232,355	$32,484,877
BFAM	Bright Horizons Family Solutions Inc.	−513,371	782	$64,225
GTES	Gates Industrial Corp plc	−506,045	4,028,336	$91,080,676
SLGN	Silgan Holdings Inc	−478,800	60,966	$2,365,480
ENB	Enbridge Inc	−453,610	564,903	$30,583,848
TILE	Interface Inc	−445,362	548,051	$13,657,430
CGNX	Cognex Corp	−441,053	1,081,714	$52,993,167
MTSI	MACOM Technology Solutions Holdings, Inc.	−378,873	839,062	$186,330,498
TTAN	ServiceTitan, Inc.	−354,866	293	$18,593
ADC	Agree Realty Corp	−350,440	556,104	$41,919,119
GENI	Genius Sports Ltd	−331,162	325	$1,439
GTX	Garrett Motion Inc.	−330,763	1,425,926	$25,909,075
ESI	Element Solutions Inc	−315,413	2,076,164	$70,880,238
CBZ	CBIZ, Inc.	−300,766	478,267	$12,841,468
MRK	Merck & Co., Inc.	−284,664	10,667	$1,283,133
AHRT	AH Realty Trust, Inc.	−278,698	275	$1,512
CSCO	Cisco Systems, Inc.	−255,649	316,874	$24,586,253
PAR	Par Technology Corp	−253,746	78,218	$1,042,645
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
COHR	Coherent Corp.	287,335	$68,446,069
FN	Fabrinet	128,323	$66,923,010
PNFP	Pinnacle Financial Partners, Inc.	545,376	$46,978,688
CW	Curtiss Wright Corp	63,033	$42,933,036
TSM	Taiwan Semiconductor Manufacturing Co Ltd	107,276	$36,253,924
PLNT	Planet Fitness, Inc.	433,119	$32,215,390
LCII	Lci Industries	261,882	$32,206,248
AMCR	Amcor plc	493,165	$19,603,308
TRI	Thomson Reuters Corp /Can/	174,957	$15,742,630
FLEX	Flex Ltd.	118,956	$7,786,859
XOMA	XOMA Royalty Corp	232,141	$7,282,263
SYNA	SYNAPTICS Inc	33,263	$2,329,740
NET	Cloudflare, Inc.	332	$68,504
GLD	Spdr Gold Trust	152	$65,404
ESE	Esco Technologies Inc	164	$46,144
ROAD	Construction Partners, Inc.	344	$38,225
RKLB	Rocket Lab Corp	531	$34,100
FNV	FRANCO NEVADA Corp	130	$32,116
FRMI	Fermi Inc.	5,144	$30,040
EPD	Enterprise Products Partners L.P.	567	$21,455
CIEN	Ciena Corp	49	$19,023
ET	Energy Transfer LP	667	$12,873
CP	Canadian Pacific Kansas City Ltd/Cn	110	$8,652
TRU	TransUnion	123	$8,510
VSNT	Versant Media Group, Inc.	129	$4,775
No positions match the current search.

Sold Out

Positions the filer fully exited

18 positions

Ticker	Company	Shares	Value
PIPR	Piper Sandler Companies	296,342	$25,167,584
BBSI	Barrett Business Services Inc	514,047	$18,613,641
GLOB	Globant S.A.	55,007	$3,595,807
BRBR	Bellring Brands, Inc.	52,041	$1,391,055
NTNX	Nutanix, Inc.	981	$50,707
MUSA	Murphy USA Inc.	125	$50,440
ROCK	Gibraltar Industries, Inc.	942	$46,572
POWI	Power Integrations Inc	301	$10,697
FUL	Fuller H B Co	143	$8,502
CUZ	Cousins Properties Inc	295	$7,605
FCN	Fti Consulting, Inc	40	$6,833
HAE	Haemonetics Corp	85	$6,812
BBWI	Bath & Body Works, Inc.	314	$6,305
OLN	OLIN Corp	130	$2,707
WIX	Wix.com Ltd.	14	$1,454
MICC	Magnum Ice Cream Co N.V.	63	$998
EMN	Eastman Chemical Co	12	$765
NSA	National Storage Affiliates Trust	3	$84
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

141 positions · $1,703,217,109 total · Technology only · as of Mar 31, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 141 positions by value · page 1 of 3

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
TEAM	Atlassian Corp Technology	Held	9	0	$614	−57.9%	0.00%
KD	Kyndryl Holdings, Inc. Technology	Reduced	58	-517,917	$760	−100.0%	0.00%
PRGS	Progress Software Corp /Ma Technology	Reduced	54	-56,793	$1,385	−99.9%	0.00%
MNDY	monday.com Ltd. Technology	Added	28	+20	$1,935	+64.0%	0.00%
GRAB	Grab Holdings Ltd Technology	Added	579	+100	$2,119	−11.3%	0.00%
JKHY	Jack Henry & Associates Inc Technology	Reduced	16	-4	$2,528	−30.7%	0.00%
HUBS	Hubspot Inc Technology	Reduced	13	-7	$3,173	−60.5%	0.00%
GEN	Gen Digital Inc. Technology	Added	215	+16	$4,048	−25.2%	0.00%
LOGI	Logitech International S.A. Technology	Added	50	+4	$4,556	−1.2%	0.00%
NICE	NICE Ltd. Technology	Added	43	+29	$4,741	+199.7%	0.00%
CHKP	Check Point Software Technologies Ltd Technology	Reduced	35	-247	$4,999	−90.4%	0.00%
PAYC	Paycom Software, Inc. Technology	Added	46	+10	$5,590	−2.5%	0.00%
STM	STMicroelectronics N.V. Technology	Added	174	+82	$6,011	+151.9%	0.00%
ERIC	Ericsson Lm Telephone Co Technology	Added	593	+69	$6,683	+32.2%	0.00%
XYZ	Block, Inc. Technology	Reduced	117	-105	$7,041	−51.3%	0.00%
NOK	Nokia Corp Technology	Added	948	+108	$7,621	+40.2%	0.00%
SMCI	Super Micro Computer, Inc. Technology	Reduced	338	-72	$7,696	−35.9%	0.00%
LYFT	Lyft, Inc. Technology	Held	583	0	$7,753	−31.3%	0.00%
ARW	Arrow Electronics, Inc. Technology	Held	55	0	$7,887	+30.2%	0.00%
SWKS	Skyworks Solutions, Inc. Technology	Reduced	155	-189	$8,300	−61.9%	0.00%
FFIV	F5, Inc. Technology	Added	29	+3	$8,390	+26.4%	0.00%
HPQ	Hp Inc Technology	Reduced	517	-368	$9,931	−49.6%	0.00%
FTV	Fortive Corp Technology	Added	182	+7	$10,060	+4.1%	0.00%
EPAM	EPAM Systems, Inc. Technology	Reduced	88	-19	$11,915	−45.6%	0.00%
CACI	Caci International Inc /De/ Technology	Held	23	0	$12,509	+2.1%	0.00%
Q	Qnity Electronics, Inc. Technology	Reduced	109	-7	$12,576	+32.8%	0.00%
LDOS	Leidos Holdings, Inc. Technology	Added	89	+3	$13,841	−10.8%	0.00%
NTAP	NetApp, Inc. Technology	Reduced	168	-5	$17,201	−7.2%	0.00%
TTAN	ServiceTitan, Inc. Technology	Reduced	293	-354,866	$18,593	−100.0%	0.00%
SSNC	SS&C Technologies Holdings Inc Technology	Reduced	279	-248	$18,852	−59.1%	0.00%
CIEN	Ciena Corp Technology	NEW	49	NEW	$19,023	NEW	0.00%
LFUS	Littelfuse Inc /De Technology	Held	58	0	$19,682	+34.2%	0.00%
TDY	Teledyne Technologies Inc Technology	Reduced	34	-2	$20,570	+11.9%	0.00%
FSLR	First Solar, Inc. Technology	Reduced	106	-5	$20,909	−27.9%	0.00%
CTSH	Cognizant Technology Solutions Corp Technology	Added	350	+4	$21,472	−25.2%	0.00%
CDW	CDW Corp Technology	Added	178	+67	$21,541	+42.5%	0.00%
TRMB	Trimble Inc. Technology	Added	334	+161	$21,786	+60.7%	0.00%
PTC	Ptc Inc. Technology	Added	154	+20	$21,943	−6.0%	0.00%
VRSN	Verisign Inc/Ca Technology	Added	91	+18	$22,600	+27.4%	0.00%
HPE	Hewlett Packard Enterprise Co Technology	Added	970	+93	$23,095	+9.6%	0.00%
GRMN	Garmin Ltd Technology	Added	100	+3	$23,201	+17.9%	0.00%
FIS	Fidelity National Information Services, Inc. Technology	Added	496	+206	$23,267	+20.7%	0.00%
AKAM	Akamai Technologies Inc Technology	Added	212	+5	$24,348	+34.8%	0.00%
GDDY	GoDaddy Inc. Technology	Reduced	295	-203	$24,387	−60.5%	0.00%
SONY	Sony Group Corp Technology	Added	1,202	+357	$24,881	+15.0%	0.00%
NXPI	NXP Semiconductors N.V. Technology	Reduced	152	-5	$29,922	−12.2%	0.00%
ON	On Semiconductor Corp Technology	Added	541	+3	$33,498	+15.0%	0.00%
SAP	Sap SE Technology	Added	199	+51	$34,070	−5.2%	0.00%
IT	Gartner Inc Technology	Added	240	+171	$38,001	+118.3%	0.00%
WDAY	Workday, Inc. Technology	Added	300	+185	$38,976	+57.8%	0.00%