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Institutional Investment Manager
GW&K Investment Management, LLC
GW&K Investment Management, LLC (CIK: 0001082917) incorporated in Massachusetts, located at 222 Berkeley St Suite 1500, Boston, MA. Institutional holdings reported to the SEC.

Institutional Holdings (2016Q3)
Portfolio Summary: 220 holdings with a total value of $5,324,968,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 MARKETAXESS HLDGS INC 697,740 115,539,000 2.17%
2 TYLER TECHNOLOGIES INC 534,533 91,528,000 1.72%
3 AMERICAN CAMPUS CMNTYS INC 1,661,622 84,527,000 1.59%
4 WEST PHARMACEUTICAL SVSC INC 1,108,449 82,579,000 1.55%
5 LogMeIn Inc 789,767 71,387,000 1.34%
6 COGNEX CORP 1,341,249 70,898,000 1.33%
7 RITCHIE BROS AUCTIONEERS 2,006,945 70,384,000 1.32%
8 ICU MED INC COM 555,549 70,210,000 1.32%
9 NATIONAL HEALTH INVS INC 763,136 59,891,000 1.12%
10 SUN COMMUNITIES INC COM 746,710 58,602,000 1.10%
11 GRAND CANYON ED INC 1,441,148 58,208,000 1.09%
12 POWER INTEGRATIONS INC COM 906,279 57,123,000 1.07%
13 BLACKBAUD INC COM 856,890 56,846,000 1.07%
14 FIVE BELOW INC COM 1,387,150 55,888,000 1.05%
15 STAG INDL INC 2,277,673 55,826,000 1.05%
16 PROASSURANCE CORP COM 996,473 52,295,000 0.98%
17 TORO CO 1,088,576 50,989,000 0.96%
18 TEXAS CAP BANCSHARES INC COM 868,497 47,698,000 0.90%
19 CATALENT INC 1,838,685 47,512,000 0.89%
20 MICROCHIP TECHNOLOGY 762,696 47,394,000 0.89%
21 LITHIA MTRS INC COM 494,918 47,275,000 0.89%
22 TEXAS ROADHOUSE INC 1,176,103 45,903,000 0.86%
23 NORTHWESTERN ENERGY GROUP INC COM NEW 787,658 45,314,000 0.85%
24 RPM INTL INC 817,578 43,920,000 0.82%
25 CLARCOR Inc 673,802 43,797,000 0.82%
26 WEBSTER FINL CORP CONN 1,148,021 43,636,000 0.82%
27 MEDIDATA SOLUTIONS INC 773,772 43,146,000 0.81%
28 UNIVERSAL FOREST PRODS INC 436,021 42,944,000 0.81%
29 PROTO LABS INC 715,401 42,860,000 0.80%
30 HEARTLAND EXPRESS INC COM 2,262,187 42,710,000 0.80%
31 RBC BEARINGS INC 558,144 42,687,000 0.80%
32 INC Research Holdings Inc 949,749 42,340,000 0.80%
33 CEB Inc 758,883 41,336,000 0.78%
34 CARDTRONICS PLC SHS CL A 926,615 41,327,000 0.78%
35 Education Realty Trust Inc 947,604 40,880,000 0.77%
36 CISCO SYS INC 1,284,819 40,754,000 0.77%
37 IBERIABANK CORP COM 603,914 40,535,000 0.76%
38 MIDDLEBY CORP 322,257 39,837,000 0.75%
39 GLAXOSMITHKLINE PLC 921,705 39,753,000 0.75%
40 STANDARD PAC CORP NEW 1,181,750 39,518,000 0.74%
41 CATHAY GEN BANCORP 1,278,478 39,352,000 0.74%
42 HEICO CORP NEW 568,394 39,333,000 0.74%
43 GLOBUS MED INC 1,720,549 38,833,000 0.73%
44 TUPPERWARE BRANDS CORP 587,770 38,423,000 0.72%
45 BALCHEM CORP COM 494,490 38,338,000 0.72%
46 HEALTHCARE SVCS GROUP INC COM 968,492 38,333,000 0.72%
47 MATADOR RES CO 1,566,878 38,138,000 0.72%
48 MACQUARIE INFRASTRUCTURE COR 453,966 37,788,000 0.71%
49 HUBSPOT INCORPORATED 629,442 36,268,000 0.68%
50 EPAM SYS INC 522,030 36,182,000 0.68%
Page 1 of 5

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001082917-16-000018, filed 2016.10.18).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.