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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 (2016Q2)
Portfolio Summary: 109 holdings with a total value of $694,370,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 Casella Waste SYS 3,846,836 30,198,000 4.35%
2 STAMPS COM INC COM NEW 309,742 27,078,000 3.90%
3 Callidus Software Inc 1,184,205 23,660,000 3.41%
4 EURONET WORLDWIDE INC 286,237 19,805,000 2.85%
5 ALPHABET INC 27,350 18,929,000 2.73%
6 PREMIER INC CL A 540,388 17,671,000 2.54%
7 VONAGE HLDGS CORP COM 2,560,023 15,616,000 2.25%
8 J2 GLOBAL INC 228,311 14,422,000 2.08%
9 RINGCENTRAL INC 729,139 14,379,000 2.07%
10 CARE COM INC COM 1,108,624 12,949,000 1.86%
11 CAPITAL SR LIVING CORP COM 730,934 12,916,000 1.86%
12 8X8 INC NEW COM 873,915 12,768,000 1.84%
13 UNITED THERAPEUTICS 116,601 12,350,000 1.78%
14 ELECTRONIC ARTS INC 162,503 12,311,000 1.77%
15 BIO RAD LABS INC CL A 85,597 12,242,000 1.76%
16 Aaron's Inc 505,067 11,056,000 1.59%
17 VIRTUSA CORPORATION 338,921 9,788,000 1.41%
18 FLAMEL TECHNOLOGIES SA SPONSORED ADR 862,294 9,261,000 1.33%
19 XO GROUP INC COM 529,821 9,235,000 1.33%
20 SLM CORP COM 1,430,162 8,838,000 1.27%
21 ADVANCE AUTO PARTS INC 52,305 8,454,000 1.22%
22 CERNER CORP 143,539 8,411,000 1.21%
23 MATCH GROUP 537,489 8,103,000 1.17%
24 NEWS CORP CL A 712,726 8,089,000 1.16%
25 SHORETEL INC 1,203,910 8,054,000 1.16%
26 SKECHERS U S A INC 265,616 7,894,000 1.14%
27 INCONTACT INC 569,691 7,890,000 1.14%
28 APIGEE CORP COM 639,052 7,809,000 1.12%
29 LIFELOCK INC 486,186 7,687,000 1.11%
30 FIDELITY NATIONAL FINANCIAL 202,837 7,606,000 1.10%
31 STERIS PLC SHS USD 110,209 7,577,000 1.09%
32 FACEBOOK INC 66,115 7,556,000 1.09%
33 Model N Inc 550,184 7,345,000 1.06%
34 SPROUTS FMRS MKT INC 312,512 7,157,000 1.03%
35 DESTINATION XL GROUP INC COM 1,563,747 7,146,000 1.03%
36 CONFORMIS INC 991,032 6,957,000 1.00%
37 AUTOBYTEL INC COM NEW 494,181 6,854,000 0.99%
38 CRYOLIFE INC 551,271 6,511,000 0.94%
39 MIMECAST LTD 634,189 6,348,000 0.91%
40 CARROLS RESTAURANT GROUP INC 530,487 6,313,000 0.91%
41 INPHI CORP 196,539 6,295,000 0.91%
42 NATERA INC 520,037 6,274,000 0.90%
43 FIESTA RESTAURANT GROUP INC COM 286,047 6,239,000 0.90%
44 ZENDESK INC 229,170 6,046,000 0.87%
45 AVANTAX INC COM 582,316 6,033,000 0.87%
46 MYRIAD GENETICS INC 183,565 5,617,000 0.81%
47 LUMENTUM HLDGS INC 227,980 5,517,000 0.79%
48 GODADDY INC 173,666 5,417,000 0.78%
49 BROOKDALE SR LIVING INC 346,684 5,353,000 0.77%
50 ORION ENGINEERED CARBONS S A COM 335,728 5,335,000 0.77%
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Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001104659-16-139336, filed 2016.08.12).

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.