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Institutional Investment Manager
AlphaOne Investment Services, LLC
AlphaOne Investment Services, LLC (CIK: 0001482390) incorporated in Delaware, located at 158 W. Gay Street, Suite 300, West Chester, PA. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q2)
Original 13F HR (0001140361-15-031620) filed in 2015.08.13
#
Name
Shares
Value ($)
%
Options
Notes
1 FACEBOOK INC 87,880 7,537 2.65%
2 SUPERNUS PHARMACEUTICALS INC 422,511 7,173 2.52%
3 GTT COMMUNICATIONS INC COM 298,721 7,131 2.51%
4 AMAG PHARMACEUTICALS INC 101,191 6,987 2.46%
5 APPLE INC 54,940 6,891 2.42%
6 VIRTUSA CORPORATION 123,046 6,326 2.22%
7 VASCULAR SOLUTIONS 170,727 5,928 2.08%
8 NATUS MEDICAL INC. 136,212 5,796 2.04%
9 INVACARE CORP COM 262,989 5,687 2.00%
10 U S PHYSICAL THERAPY COM 102,625 5,620 1.98%
11 RINGCENTRAL INC 298,370 5,517 1.94%
12 AVG Technologies NV 186,100 5,064 1.78%
13 CARDIOME PHARMA CORP 531,493 5,002 1.76%
14 RENASANT CORP 152,888 4,985 1.75%
15 CAMBREX CORP 108,613 4,773 1.68%
16 NN Inc Com 179,755 4,589 1.61%
17 KIRKLANDS INC COM 160,973 4,486 1.58%
18 AZZ INC 85,031 4,405 1.55%
19 On Assignment Inc 111,137 4,365 1.53%
20 CALAMP CORP 238,657 4,357 1.53%
21 Enterprise Finl Svcs Corp 187,109 4,259 1.50%
22 BANNER CORP COM NEW 88,637 4,248 1.49%
23 NOVANTA INC 279,122 4,195 1.48%
24 COLUMBIA BKG SYS INC COM 126,932 4,130 1.45%
25 SUNPOWER CORP 144,900 4,117 1.45%
26 FINANCIAL INSTNS INC 162,651 4,041 1.42%
27 KNIGHT TRANSN INC 150,995 4,038 1.42%
28 HERITAGE FINL CORP WASH COM 224,708 4,016 1.41%
29 BRYN MAWR BK CORP 130,704 3,942 1.39%
30 MULTI COLOR CORP COM 60,615 3,874 1.36%
31 ATMEL CORP 392,000 3,863 1.36%
32 RED ROBIN GOURMET BURGERS INC COM 44,546 3,822 1.34%
33 INPHI CORPORATION 165,903 3,793 1.33%
34 FEDERAL SIGNAL CORP 252,821 3,771 1.33%
35 WSFS FINL CORPORATION 135,997 3,720 1.31%
36 OLD DOMINION FREIGHT LINE IN 53,946 3,701 1.30%
37 HEALTHSTREAM INC COM 121,523 3,697 1.30%
38 GP Strategies Corp 108,402 3,603 1.27%
39 CECO ENVIRONMENTAL CORP 314,490 3,563 1.25%
40 Park Sterling Corp 492,297 3,545 1.25%
41 HANMI FINL CORP COM NEW 142,604 3,542 1.25%
42 PACWEST BANCORP DEL COM 74,590 3,487 1.23%
43 HURCO COMPANIES INC 100,299 3,474 1.22%
44 STERLING BANCORP DEL COM 231,700 3,405 1.20%
45 KADANT INC 68,855 3,249 1.14%
46 DEL FRISCOS RESTAURANT GROUP COM 172,500 3,214 1.13%
47 JPMORGAN CHASE & CO 46,800 3,171 1.12%
48 CRA INTL INC COM 107,022 2,983 1.05%
49 BANK AMER CORP 175,100 2,980 1.05%
50 NATURAL GAS SERVICES GROUP 126,518 2,887 1.02%
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