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Institutional Investment Manager
OBERWEIS ASSET MANAGEMENT INC/
OBERWEIS ASSET MANAGEMENT INC/ (CIK: 0000937886) incorporated in Illinois, located at 3333 Warrenville Road, Lisle, IL. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q1)
Portfolio Summary: 169 holdings with a total value of $355,988,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 ICON PLC 398,400 28,099,000 7.89%
2 COTT CORP QUE 1,714,464 16,065,000 4.51%
3 VIPSHOP HLDGS LTD 497,680 14,652,000 4.12%
4 GENTHERM INC COM 233,031 11,770,000 3.31%
5 Diplomat Pharmacy Inc 319,876 11,061,000 3.11%
6 LIGAND PHARMACEUTICALS INC 125,387 9,669,000 2.72%
7 CHINA MOBILE GAMES & ENTMT G 558,332 9,307,000 2.61%
8 SYNAPTICS INC 113,506 9,229,000 2.59%
9 CARDIOVASCULAR SYS INC DEL COM 233,986 9,135,000 2.57%
10 METHODE ELECTRS INC COM 181,092 8,519,000 2.39%
11 MIMEDX GROUP INC COM 737,180 7,667,000 2.15%
12 BOFI HLDG INC 80,418 7,482,000 2.10%
13 SKECHERS U S A INC 103,013 7,408,000 2.08%
14 ABIOMED INC 102,270 7,320,000 2.06%
15 TARENA INTL INC 735,484 7,156,000 2.01%
16 G III APPAREL GROUP LTD COM 63,324 7,133,000 2.00%
17 SYNCHRONOSS TECHNOLOGIES INC COM 144,115 6,840,000 1.92%
18 LogMeIn Inc 119,730 6,704,000 1.88%
19 HEALTHEQUITY INC COM 251,565 6,287,000 1.77%
20 FINANCIAL ENGINES INC 149,600 6,258,000 1.76%
21 ASTRONICS CORP COM 84,148 6,202,000 1.74%
22 EAGLE BANCORP INC MD 157,198 6,036,000 1.70%
23 PGT INNOVATIONS INC COM 508,340 5,681,000 1.60%
24 WAGEWORKS INC COM 106,381 5,673,000 1.59%
25 Callidus Software Inc 439,829 5,577,000 1.57%
26 INPHI CORP 304,990 5,438,000 1.53%
27 CHINA BIOLOGIC PRODS INC 56,200 5,368,000 1.51%
28 NETEASE INC 50,610 5,329,000 1.50%
29 21VIANET GROUP INC 299,959 5,297,000 1.49%
30 RUBICON PROJ INC 282,830 5,068,000 1.42%
31 ANI PHARMACEUTICALS INC COM 72,535 4,537,000 1.27%
32 BONANZA CREEK ENERGY INC 181,477 4,475,000 1.26%
33 COMSCORE INC 84,860 4,345,000 1.22%
34 INSPERITY INC COM 75,600 3,953,000 1.11%
35 Ikang Healthcare Group, Inc. A 228,600 3,708,000 1.04%
36 CHINA DISTANCE ED HLDGS LTD 168,500 2,824,000 0.79%
37 ZELTIQ AESTHETICS INCORPORATED 88,900 2,741,000 0.77%
38 BITAUTO HLDGS LIMITED SPONSORED ADS 45,000 2,290,000 0.64%
39 ALIBABA GROUP HLDG LTD 25,495 2,122,000 0.60%
40 PIXELWORKS INC 399,980 2,008,000 0.56%
41 JD COM INC ADR 65,250 1,917,000 0.54%
42 QIHOO 360 TECHNOLOGY CO LTD 35,000 1,792,000 0.50%
43 DIAMONDBACK ENERGY 20,870 1,604,000 0.45%
44 NV5 GLOBAL INC COM 96,800 1,584,000 0.44%
45 SPDR S&P 500 ETF TR 7,600 1,569,000 0.44%
46 CANADIAN SOLAR INC 45,820 1,530,000 0.43%
47 ENVESTNET INC 27,202 1,525,000 0.43%
48 OMNICELL COM COM 38,500 1,351,000 0.38%
49 BAIDU INC 6,190 1,290,000 0.36%
50 NOAH HOLDINGS 53,500 1,251,000 0.35%
Page 1 of 4

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001144204-15-031228, filed 2015.05.15).

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.