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 (2016Q2)
Portfolio Summary: 222 holdings with a total value of $4,843,958,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 MARKETAXESS HLDGS INC 660,904 96,095,000 1.98%
2 WEST PHARMACEUTICAL SVSC INC 1,160,527 88,061,000 1.82%
3 TYLER TECHNOLOGIES INC 483,960 80,681,000 1.67%
4 AMERICAN CAMPUS CMNTYS INC 1,524,206 80,585,000 1.66%
5 RITCHIE BROS AUCTIONEERS 1,941,974 65,600,000 1.35%
6 NATIONAL HEALTH INVS INC 841,007 63,151,000 1.30%
7 FIVE BELOW INC COM 1,331,915 61,814,000 1.28%
8 ICU MED INC COM 542,184 61,131,000 1.26%
9 GRAND CANYON ED INC 1,482,036 59,163,000 1.22%
10 FEI COMPANY 528,466 56,482,000 1.17%
11 BLACKBAUD INC COM 821,492 55,779,000 1.15%
12 COGNEX CORP 1,285,671 55,412,000 1.14%
13 TEXAS ROADHOUSE INC 1,198,985 54,674,000 1.13%
14 SUN COMMUNITIES INC COM 689,388 52,835,000 1.09%
15 LogMeIn Inc 808,760 51,300,000 1.06%
16 NORTHWESTERN ENERGY GROUP INC COM NEW 807,485 50,928,000 1.05%
17 RPM INTL INC 1,002,994 50,100,000 1.03%
18 PROASSURANCE CORP COM 930,214 49,813,000 1.03%
19 STAG INDL INC 2,012,957 47,929,000 0.99%
20 CEB Inc 744,279 45,907,000 0.95%
21 Education Realty Trust Inc 968,515 44,687,000 0.92%
22 TORO CO 502,506 44,321,000 0.91%
23 POWER INTEGRATIONS INC COM 873,304 43,726,000 0.90%
24 STANDARD PAC CORP NEW 1,147,612 42,129,000 0.87%
25 GLOBUS MED INC 1,741,751 41,506,000 0.86%
26 UNIVERSAL FOREST PRODS INC 445,194 41,265,000 0.85%
27 HEALTHCARE SVCS GROUP INC COM 988,598 40,908,000 0.84%
28 MICROCHIP TECHNOLOGY 805,546 40,890,000 0.84%
29 CATALENT INC 1,755,362 40,356,000 0.83%
30 TEXAS CAP BANCSHARES INC COM 840,464 39,300,000 0.81%
31 PROTO LABS INC 680,415 39,165,000 0.81%
32 HEICO CORP NEW 583,736 38,999,000 0.81%
33 RBC BEARINGS INC 524,157 38,001,000 0.78%
34 HEARTLAND EXPRESS INC COM 2,182,545 37,954,000 0.78%
35 MEDIDATA SOLUTIONS INC 796,916 37,351,000 0.77%
36 WEBSTER FINL CORP CONN 1,096,709 37,233,000 0.77%
37 ALTRIA GROUP INC 532,749 36,738,000 0.76%
38 CLARCOR Inc 602,514 36,651,000 0.76%
39 CATHAY GEN BANCORP 1,299,255 36,639,000 0.76%
40 CARDTRONICS INC COM 903,883 35,984,000 0.74%
41 TEAM HEALTH HOLDINGS INCORPORATED 876,479 35,646,000 0.74%
42 MOBILE MINI INC 1,027,630 35,597,000 0.73%
43 PFIZER INC 1,004,843 35,381,000 0.73%
44 SIX FLAGS ENTMT CORP NEW 608,999 35,291,000 0.73%
45 AMERISAFE INC COM 573,301 35,097,000 0.72%
46 GENERAL ELECTRIC CO 1,101,444 34,673,000 0.72%
47 LOCKHEED MARTIN CORP 138,399 34,346,000 0.71%
48 EPAM SYS INC 532,300 34,232,000 0.71%
49 IBERIABANK CORP COM 568,223 33,940,000 0.70%
50 COHEN STEERS INC 826,599 33,428,000 0.69%
Page 1 of 5

Portfolio data is normalized using SEC Form 13F filings, including the Restatement filing (0001082917-16-000016, filed 2016.07.26).

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.