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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 (2015Q2)
Portfolio Summary: 224 holdings with a total value of $4,395,085,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 TYLER TECHNOLOGIES INC 654,877 84,728,000 1.93%
2 MARKETAXESS HLDGS INC 869,766 80,688,000 1.84%
3 COGNEX CORP 1,378,139 66,288,000 1.51%
4 WEST PHARMACEUTICAL SVSC INC 1,139,279 66,169,000 1.51%
5 CEB Inc 708,121 61,649,000 1.40%
6 GRAND CANYON ED INC 1,446,174 61,318,000 1.40%
7 BLACKBAUD INC COM 1,010,641 57,556,000 1.31%
8 AMERICAN CAMPUS CMNTYS INC 1,526,872 57,548,000 1.31%
9 TEXAS ROADHOUSE INC 1,484,921 55,581,000 1.26%
10 The Ryland Group Inc (Acquired 10/1/15) 1,185,384 54,966,000 1.25%
11 ICU MED INC COM 568,092 54,344,000 1.24%
12 NATIONAL HEALTH INVS INC 834,594 51,995,000 1.18%
13 GLACIER BANCORP INC NEW COM 1,763,416 51,880,000 1.18%
14 FEI COMPANY 623,212 51,683,000 1.18%
15 STIFEL FINANCIAL CP 879,683 50,793,000 1.16%
16 TEXAS CAP BANCSHARES INC COM 796,673 49,585,000 1.13%
17 LITHIA MTRS INC COM 437,373 49,493,000 1.13%
18 TORO CO 727,557 49,314,000 1.12%
19 ASPEN TECHNOLOGY INC 1,079,683 49,180,000 1.12%
20 RITCHIE BROS AUCTIONEERS 1,751,938 48,914,000 1.11%
21 PRA GROUP INC 766,491 47,760,000 1.09%
22 IBERIABANK CORP COM 699,130 47,702,000 1.09%
23 HEARTLAND EXPRESS INC COM 2,132,165 43,134,000 0.98%
24 PEBBLEBROOK HOTEL TR 984,457 42,214,000 0.96%
25 RBC BEARINGS INC 583,474 41,870,000 0.95%
26 OXFORD INDS INC COM 478,705 41,863,000 0.95%
27 HEALTHCARE SVCS GROUP INC COM 1,259,665 41,632,000 0.95%
28 PROTO LABS INC 612,831 41,354,000 0.94%
29 RPM INTL INC 836,490 40,963,000 0.93%
30 CAVIUM INC 592,384 40,762,000 0.93%
31 NORTHWESTERN ENERGY GROUP INC COM NEW 834,357 40,675,000 0.93%
32 CMS Energy Corp 741,460 39,928,000 0.91%
33 PROASSURANCE CORP COM 861,611 39,815,000 0.91%
34 CLARCOR Inc 639,035 39,774,000 0.90%
35 GLOBUS MED INC 1,549,060 39,764,000 0.90%
36 SILGAN HOLDINGS INC 747,895 39,459,000 0.90%
37 CEPHEID 643,459 39,348,000 0.90%
38 HIBBETT INC COM 836,308 38,955,000 0.89%
39 MOBILE MINI INC 923,247 38,813,000 0.88%
40 MICROCHIP TECHNOLOGY 813,935 38,601,000 0.88%
41 MATADOR RES CO 1,502,845 37,571,000 0.85%
42 LogMeIn Inc 576,281 37,164,000 0.85%
43 EPAM SYS INC 521,555 37,150,000 0.85%
44 MEDIDATA SOLUTIONS INC 672,908 36,552,000 0.83%
45 POWER INTEGRATIONS INC COM 805,248 36,381,000 0.83%
46 DRIL-QUIP INC 483,215 36,362,000 0.83%
47 TUPPERWARE BRANDS CORP 544,359 35,133,000 0.80%
48 KAPSTONE PAPER & PACKAGING CRP COM 1,510,477 34,922,000 0.79%
49 CATALENT INC 1,188,132 34,848,000 0.79%
50 TUMI HOLDINGS INC 1,655,497 33,971,000 0.77%
Page 1 of 5

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001082917-15-000007, filed 2015.07.08).

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.