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Institutional Investment Manager
EMERALD ADVISERS, LLC
EMERALD ADVISERS, LLC (CIK: 0001015083) incorporated in Pennsylvania, located at 3175 Oregon Pike, Leola, PA. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q1)
Portfolio Summary: 343 holdings with a total value of $1,992,227,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 EPAM SYS INC 686,329 45,922,000 2.31%
2 SPIRIT AIRLS INC 538,644 41,950,000 2.11%
3 ACADIA HEALTHCARE COMPANY IN 443,349 32,081,000 1.61%
4 APOGEE ENTERPRISES INC COM 559,782 29,870,000 1.50%
5 QLIK TECHNOLOGIES INC COM 842,306 29,460,000 1.48%
6 JACK IN THE BOX INC 306,085 28,659,000 1.44%
7 BANK OF THE OZARKS 696,139 27,713,000 1.39%
8 INTREXON CORP 695,954 27,323,000 1.37%
9 IPG PHOTONICS CORP 294,115 27,298,000 1.37%
10 WABTEC 277,113 26,841,000 1.35%
11 IMPERVA INC 552,693 26,214,000 1.32%
12 PROOFPOINT INC 462,677 25,836,000 1.30%
13 TREX CO INC COM 497,142 24,927,000 1.25%
14 BRUNSWICK CORP 450,911 24,845,000 1.25%
15 ASTRONICS CORP COM 311,811 22,734,000 1.14%
16 MICROSEMI CORP 673,281 22,440,000 1.13%
17 Ultimate Software Group Inc 124,204 22,218,000 1.12%
18 AMERICAN EAGLE OUTFITTERS IN 1,290,684 21,425,000 1.08%
19 CEPHEID 365,985 20,751,000 1.04%
20 OPUS BK IRVINE CALIF 637,364 20,733,000 1.04%
21 CAVIUM INC 310,601 20,498,000 1.03%
22 MICROSTRATEGY INC CL A NEW 119,533 20,285,000 1.02%
23 CUSTOMERS BANCORP INC COM 790,972 20,233,000 1.02%
24 RED ROBIN GOURMET BURGERS INC COM 222,086 18,371,000 0.92%
25 INTERCEPT PHARMACEUTICAL 68,180 18,217,000 0.91%
26 NEUROCRINE BIOSCIE COM USD0.001 462,253 17,464,000 0.88%
27 KNOLL INC 743,121 17,270,000 0.87%
28 DEPOMED INC 665,166 16,702,000 0.84%
29 KFORCE INC COM 743,474 16,698,000 0.84%
30 AKORN INC 361,858 16,197,000 0.81%
31 HOMEAWAY INC 596,437 16,175,000 0.81%
32 FARO TECHNOLOGIES INC COM 370,326 16,020,000 0.80%
33 PORTOLA PHARMACEUTICALS INC 432,900 15,667,000 0.79%
34 WELLCARE HEALTH PLANS INC COM 186,404 15,207,000 0.76%
35 SYNCHRONOSS TECHNOLOGIES INC COM 308,716 15,164,000 0.76%
36 DIAMONDBACK ENERGY 188,393 15,115,000 0.76%
37 GTT COMMUNICATIONS INC COM 783,699 15,078,000 0.76%
38 PACWEST BANCORP DEL COM 327,101 14,811,000 0.74%
39 FIRST NBC BK HLDG CO 410,820 14,810,000 0.74%
40 MARINEMAX INC COM 620,900 14,628,000 0.73%
41 ANSYS 168,089 14,572,000 0.73%
42 GLU MOBILE INC 2,604,821 13,311,000 0.67%
43 MATTHEWS INTL CORP 257,909 13,272,000 0.67%
44 TUTOR PERINI CORP 571,398 13,216,000 0.66%
45 WALKER & DUNLOP INC COM 665,779 13,063,000 0.66%
46 RENTRAK CORP 264,430 12,827,000 0.64%
47 LENDINGTREE INC NEW COM 205,100 12,665,000 0.64%
48 K2M GROUP HLDGS INC COM 574,294 12,663,000 0.64%
49 HORIZON PHARMA PLC 424,266 12,546,000 0.63%
50 DAVE & BUSTERS ENTMT INC COM 357,200 12,141,000 0.61%
Page 1 of 7

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001144204-15-025897, filed 2015.04.29).

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.