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Institutional Investment Manager
Portolan Capital Management, LLC
Portolan Capital Management, LLC (CIK: 0001350290) incorporated in Delaware, located at 2 International Place, 26th Floor, Boston, MA. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q4)
Portfolio Summary: 123 holdings with a total value of $789,012,000.
#
Name
Shares
Value ($)
%
Options
Notes
51 BROOKDALE SR LIVING INC 309,405 5,712,000 0.72%
52 BROADSOFT INC 159,842 5,652,000 0.72%
53 RACKSPACE HOSTING INC 222,715 5,639,000 0.71%
54 FLWS/1-800 FLOWERS CL A 765,181 5,571,000 0.71%
55 FIREEYE INC 267,901 5,556,000 0.70%
56 PERRIGO CO PLC 38,264 5,537,000 0.70%
57 AKAMAI TECHNOLOGIES INC 98,637 5,191,000 0.66%
58 SPROUTS FMRS MKT INC 194,139 5,162,000 0.65%
59 3-D SYS CORP DEL 589,826 5,126,000 0.65%
60 Aaron's Inc 224,694 5,031,000 0.64%
61 CORELOGIC INC 148,046 5,013,000 0.64%
62 BARRACUDA NETWORKS INC 267,374 4,995,000 0.63%
63 GENWORTH FINL INC 1,323,055 4,935,000 0.63%
64 COMSCORE INC 119,175 4,904,000 0.62%
65 WIX COM LTD 214,200 4,873,000 0.62%
66 STERIS PLC SHS USD 63,257 4,766,000 0.60%
67 CHECK POINT SOFTWARE TECH LT 56,671 4,612,000 0.58%
68 COGNIZANT TECHNOLOGY SOLUTIO 76,660 4,601,000 0.58%
69 EXPEDIA INC DEL 36,809 4,575,000 0.58%
70 UNITED THERAPEUTICS CORP DEL 28,955 4,535,000 0.57%
71 SHORETEL INC 506,096 4,479,000 0.57%
72 WESTERN DIGITAL CORP 73,686 4,425,000 0.56%
73 TWITTER INC 184,554 4,271,000 0.54%
74 ADVANCE AUTO PARTS INC 27,481 4,136,000 0.52%
75 NEWPORT CORP 258,587 4,104,000 0.52%
76 CARROLS RESTAURANT GROUP INC 339,842 3,990,000 0.51%
77 TANGOE INC COM DELETED 474,252 3,979,000 0.50%
78 QUALYS INC 115,067 3,808,000 0.48%
79 FEDERAL AGRIC MTG CORP CL C 120,364 3,800,000 0.48%
80 TECHTARGET INC 456,568 3,666,000 0.46%
81 BIO RAD LABS INC 26,077 3,616,000 0.46%
82 SOUTHWEST AIRLS CO 82,150 3,537,000 0.45%
83 BLUEBIRD BIO INC COM 54,710 3,513,000 0.45%
84 DELPHI AUTOMOTIVE PLC 40,103 3,438,000 0.44%
85 Altisource Residential Corp 272,296 3,379,000 0.43%
86 SHUTTERFLY INC 75,055 3,344,000 0.42%
87 DESTINATION MATERNITY CORP 381,134 3,323,000 0.42%
88 WEBSITE PROS INC COM 159,659 3,195,000 0.40%
89 LIONS GATE ENTERTN 96,010 3,110,000 0.39%
90 GENTEX CORP 192,656 3,084,000 0.39%
91 BRAVO BRIO RESTAURANT GROUP COM 331,523 2,984,000 0.38%
92 SMART AND FINAL STORES INC COM 149,148 2,716,000 0.34%
93 AMERICAN AIRLS GROUP INC 61,123 2,589,000 0.33%
94 COOPER TIRE RUBR CO 65,885 2,494,000 0.32%
95 COGENT COMMUNICATIONS HLDGS IN COM NEW 71,142 2,468,000 0.31%
96 SUPERNUS PHARMACEUTICALS INC 182,789 2,457,000 0.31%
97 CRYOLIFE INC 224,230 2,417,000 0.31%
98 ANALOGIC CORP COM PAR $0.05 28,858 2,384,000 0.30%
99 UNISYS CORP 215,002 2,376,000 0.30%
100 DSW INC CL A 90,294 2,154,000 0.27%
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Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001104659-16-096432, 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.