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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 (2015Q4)
Portfolio Summary: 97 holdings with a total value of $280,116,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 FACEBOOK INC 91,600 9,587,000 3.42%
2 RINGCENTRAL INC 289,720 6,832,000 2.44%
3 ALPHABET INC 7,310 5,687,000 2.03%
4 NATUS MEDICAL INC. 113,942 5,474,000 1.95%
5 INVACARE CORP COM 293,274 5,099,000 1.82%
6 VASCULAR SOLUTIONS INC COM 146,708 5,045,000 1.80%
7 On Assignment Inc 111,281 5,002,000 1.79%
8 INPHI CORP 184,942 4,999,000 1.78%
9 RENASANT CORP 142,949 4,919,000 1.76%
10 NOVANTA INC 360,656 4,914,000 1.75%
11 CALAMP CORP 244,041 4,864,000 1.74%
12 AZZ INC COM 87,216 4,847,000 1.73%
13 VODAFONE GROUP PLC NEW 149,291 4,816,000 1.72%
14 CARDIOME PHARMA CORP 586,455 4,756,000 1.70%
15 Enterprise Finl Svcs Corp 165,093 4,680,000 1.67%
16 FINANCIAL INSTITUTIONS INC 166,721 4,668,000 1.67%
17 WSFS Financial Corp 139,681 4,520,000 1.61%
18 U S PHYSICAL THERAPY COM 83,822 4,499,000 1.61%
19 MULTI COLOR CORP COM 73,777 4,413,000 1.58%
20 HERITAGE FINL CORP WASH COM 221,214 4,168,000 1.49%
21 BANNER CORP COM NEW 90,570 4,154,000 1.48%
22 CAMBREX CORP 86,705 4,084,000 1.46%
23 ETHAN ALLEN INTERIORS INC COM 145,340 4,043,000 1.44%
24 GTT COMMUNICATIONS INC COM 229,545 3,915,000 1.40%
25 SP PLUS CORP COM 162,377 3,880,000 1.39%
26 VIRTUSA CORPORATION 91,278 3,774,000 1.35%
27 PACWEST BANCORP DEL COM 84,982 3,662,000 1.31%
28 ORACLE CORP 99,930 3,650,000 1.30%
29 COLUMBIA BKG SYS INC COM 110,983 3,606,000 1.29%
30 CISCO SYS INC 132,460 3,597,000 1.28%
31 Park Sterling Corp 481,201 3,522,000 1.26%
32 RED ROBIN GOURMET BURGERS INC COM 55,378 3,419,000 1.22%
33 INSTEEL IND 162,412 3,398,000 1.21%
34 PACIFIC CONTINENTAL CORP 227,410 3,384,000 1.21%
35 FEDERAL SIGNAL CORP COM 209,628 3,323,000 1.19%
36 GP Strategies Corp 132,186 3,320,000 1.19%
37 STERLING BANCORP DEL COM 204,612 3,318,000 1.18%
38 EXPONENT INC COM 66,031 3,300,000 1.18%
39 KIRKLANDS INC COM 226,185 3,279,000 1.17%
40 Bryn Mawr Bk Corp 113,782 3,267,000 1.17%
41 ENTRAVISION COMMUNICATIONS C 420,339 3,241,000 1.16%
42 SUPERNUS PHARMACEUTICALS INC COM 240,043 3,225,000 1.15%
43 MARVELL TECHNOLOGY GROUP LTD 364,000 3,210,000 1.15%
44 SYMANTEC CORP 150,000 3,150,000 1.12%
45 CBS CORP NEW 64,790 3,054,000 1.09%
46 KADANT INC 73,727 2,995,000 1.07%
47 CRA INTL INC COM 159,690 2,979,000 1.06%
48 LYDALL INC COM 83,565 2,964,000 1.06%
49 HEALTHSTREAM INC COM 132,882 2,924,000 1.04%
50 NATURAL GAS SVCS GROUP INC 129,706 2,892,000 1.03%
Page 1 of 2

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001140361-16-051882, filed 2016.02.12).

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.