Dark
Light
System
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 (2016Q4)
Portfolio Summary: 125 holdings with a total value of $742,731,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 Casella Waste SYS 3,012,984 37,391,000 5.03%
2 STAMPS COM INC COM NEW 249,436 28,598,000 3.85%
3 Callidus Software Inc 1,355,137 22,766,000 3.07%
4 ALPHABET INC 24,786 19,130,000 2.58%
5 NXSTAGE MED INC COM 576,263 15,104,000 2.03%
6 BIO RAD LABS INC CL A 79,009 14,402,000 1.94%
7 VCA INCORPORATED 190,971 13,110,000 1.77%
8 FERROGLOBE PLC SHS 1,196,926 12,963,000 1.75%
9 SKECHERS U S A INC 523,967 12,879,000 1.73%
10 GOODYEAR TIRE & RUBB 401,496 12,394,000 1.67%
11 CARE COM INC COM 1,424,957 12,212,000 1.64%
12 EURONET WORLDWIDE INC 165,144 11,961,000 1.61%
13 HORTONWORKS INC COM 1,428,555 11,871,000 1.60%
14 UNISYS CORP 786,137 11,753,000 1.58%
15 UNITED THERAPEUTICS 80,916 11,606,000 1.56%
16 MATADOR RES CO 430,303 11,085,000 1.49%
17 GULFPORT ENERGY CORP 468,458 10,137,000 1.36%
18 GODADDY INC 283,857 9,921,000 1.34%
19 ALTISOURCE RESIDENTIAL CORP CL B 833,584 9,203,000 1.24%
20 BOX INC 654,809 9,076,000 1.22%
21 FIESTA RESTAURANT GROUP INC COM 298,883 8,922,000 1.20%
22 SLM CORP COM 801,990 8,838,000 1.19%
23 VONAGE HLDGS CORP COM 1,222,382 8,373,000 1.13%
24 SQUARE INC 601,417 8,197,000 1.10%
25 CF INDS HLDGS INC 258,473 8,137,000 1.10%
26 RINGCENTRAL INC 391,995 8,075,000 1.09%
27 PAYPAL HLDGS INC 195,378 7,712,000 1.04%
28 J2 GLOBAL INC 93,414 7,641,000 1.03%
29 INSTRUCTURE INC 383,269 7,493,000 1.01%
30 Nomad HLDGS Ltd 775,505 7,422,000 1.00%
31 ADOBE INC 71,410 7,352,000 0.99%
32 EAST WEST BANCORP INC 141,904 7,213,000 0.97%
33 CARBONITE INC 437,197 7,170,000 0.97%
34 PBF ENERGY INC 251,040 6,999,000 0.94%
35 WIX COM LTD 155,097 6,910,000 0.93%
36 ABRAXAS PETE CORP 2,671,435 6,866,000 0.92%
37 CITIZENS FINL GROUP INC 192,532 6,860,000 0.92%
38 RESOLUTE ENERGY 164,206 6,764,000 0.91%
39 ETRADE GROUP 193,177 6,694,000 0.90%
40 SYNERGY RES CORP 732,880 6,530,000 0.88%
41 WINTRUST FINL CORP COM 88,432 6,418,000 0.86%
42 DESTINATION XL GROUP INC COM 1,499,653 6,374,000 0.86%
43 SVB FINANCIAL GROUP 36,916 6,337,000 0.85%
44 8X8 INC NEW COM 442,753 6,331,000 0.85%
45 CAPITAL SR LIVING CORP COM 382,860 6,145,000 0.83%
46 XO GROUP INC COM 315,432 6,135,000 0.83%
47 KAPSTONE PAPER & PACKAGING CRP COM 274,619 6,055,000 0.82%
48 FACEBOOK INC 52,156 6,001,000 0.81%
49 ATRICURE INC 297,592 5,824,000 0.78%
50 ABIOMED INC 51,456 5,798,000 0.78%
Page 1 of 3

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001104659-17-009201, filed 2017.02.14).

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.