Dark
Light
System
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 (2016Q1)
Portfolio Summary: 218 holdings with a total value of $4,511,919,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 MARKETAXESS HLDGS INC 706,089 88,141,000 1.95%
2 WEST PHARMACEUTICAL SVSC INC 1,180,178 81,810,000 1.81%
3 AMERICAN CAMPUS CMNTYS INC 1,451,656 68,358,000 1.52%
4 GRAND CANYON ED INC 1,505,528 64,346,000 1.43%
5 TYLER TECHNOLOGIES INC 473,827 60,939,000 1.35%
6 NATIONAL HEALTH INVS INC 882,994 58,737,000 1.30%
7 FEI COMPANY 632,585 56,306,000 1.25%
8 ICU MED INC COM 539,386 56,150,000 1.24%
9 TORO CO 640,350 55,147,000 1.22%
10 TEXAS ROADHOUSE INC 1,240,870 54,077,000 1.20%
11 FIVE BELOW INC COM 1,297,217 53,627,000 1.19%
12 NORTHWESTERN ENERGY GROUP INC COM NEW 836,548 51,657,000 1.14%
13 RITCHIE BROS AUCTIONEERS 1,901,323 51,488,000 1.14%
14 PROTO LABS INC 663,152 51,122,000 1.13%
15 BLACKBAUD INC COM 802,086 50,443,000 1.12%
16 COGNEX CORP 1,259,868 49,072,000 1.09%
17 SUN COMMUNITIES INC COM 673,583 48,235,000 1.07%
18 CEB Inc 741,272 47,983,000 1.06%
19 POWER INTEGRATIONS INC COM 929,778 46,173,000 1.02%
20 PROASSURANCE CORP COM 909,762 46,034,000 1.02%
21 CATALENT INC 1,709,057 45,581,000 1.01%
22 RPM INTL INC 919,412 43,516,000 0.96%
23 Education Realty Trust Inc 1,001,234 41,651,000 0.92%
24 LogMeIn Inc 825,422 41,651,000 0.92%
25 GLACIER BANCORP INC NEW COM 1,632,025 41,486,000 0.92%
26 HEARTLAND EXPRESS INC COM 2,178,674 40,414,000 0.90%
27 EPAM SYS INC 539,571 40,290,000 0.89%
28 UNIVERSAL FOREST PRODS INC 461,057 39,568,000 0.88%
29 WEBSTER FINL CORP CONN 1,087,949 39,057,000 0.87%
30 CAVIUM INC 636,786 38,946,000 0.86%
31 STANDARD PAC CORP NEW 1,149,092 38,403,000 0.85%
32 STAG INDL INC 1,876,249 38,200,000 0.85%
33 GLOBUS MED INC 1,587,055 37,693,000 0.84%
34 HEALTHCARE SVCS GROUP INC COM 1,023,563 37,677,000 0.84%
35 RBC BEARINGS INC 512,879 37,574,000 0.83%
36 LITHIA MTRS INC COM 430,246 37,573,000 0.83%
37 TEAM HEALTH HOLDINGS INCORPORATED 867,637 36,276,000 0.80%
38 CLARCOR Inc 624,703 36,102,000 0.80%
39 HEICO CORP NEW 593,652 35,696,000 0.79%
40 MICROCHIP TECHNOLOGY 737,748 35,559,000 0.79%
41 TUMI HOLDINGS INC 1,309,991 35,134,000 0.78%
42 CANTEL MED CORP 488,240 34,841,000 0.77%
43 WD 40 CO COM 312,074 33,707,000 0.75%
44 MOBILE MINI INC 1,017,503 33,598,000 0.74%
45 PRIMORIS SVCS CORP 1,377,539 33,474,000 0.74%
46 COHEN STEERS INC 858,251 33,403,000 0.74%
47 OXFORD INDS INC COM 493,219 33,159,000 0.73%
48 GENERAL ELECTRIC CO 1,038,804 33,024,000 0.73%
49 TUPPERWARE BRANDS CORP 563,517 32,673,000 0.72%
50 CARDTRONICS INC COM 893,481 32,156,000 0.71%
Page 1 of 5

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001082917-16-000013, filed 2016.04.19).

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.