OBERWEIS ASSET MANAGEMENT INC/ Information

3333 WARRENVILLE ROAD, LISLE, Illinois, 60532, (630) 577-2300

Report Date: 03/31/2015

Position Statistics

Total Positions 207
New Positions 80
Increased Positions 99
Decreased Positions 98
Positions with Activity 197
Sold Out Positions 39
Total Mkt Value (in $ millions) 383

Institutional Holdings information is filed by major institutions on form 13-F with the Securities and Exchange Commission.

Sector Weighting

Basic Materials 0.17%
Capital Goods 4.69%
Conglomerates 0.12%
Consumer Cyclical 7.28%
Consumer/Non-Cyclical 4.66%
Energy 1.93%
Financial 8.53%
Healthcare 22.1%
Services 14.22%
Technology 22.91%
Transportation 0.5%
Utilities

207 Positions as of 03/31/2015

Company ▲ Class Value of Shares ($1,000s) Change in Value ($1,000s) Change (%) Shares Held
21VIANET GROUP INC SPONSORED ADR 6,167 -4,731 (43.41) 299,959
500 COM LTD SPON ADR REP A -736 Sold Out 0
8X8 INC NEW COM 673 -5,884 (89.74) 71,560
AAC HLDGS INC COM 635 New 14,700
ABIOMED INC COM 6,827 6,827 New 102,270
ACADIA HEALTHCARE COMPANY INC COM -1,563 Sold Out 0
ALAMO GROUP INC COM 903 903 New 16,200
ALIBABA GROUP HLDG LTD SPONSORED ADS 2,123 999 88.92 25,495
AMBARELLA INC SHS -2,195 Sold Out 0
AMGEN INC COM 457 New 2,889
AMN HEALTHCARE SERVICES INC COM 1,273 1,273 New 41,500
AMSURG CORP COM 563 563 New 7,900
ANI PHARMACEUTICALS INC COM 4,553 3,498 331.76 72,535
APPLE INC COM 464 -18 (3.66) 3,661
ASTRO-MED INC NEW COM -202 Sold Out 0
ASTRONICS CORP COM 6,054 -2,533 (29.49) 84,148
ATRICURE INC COM 482 -452 (48.42) 19,600
ATTUNITY LTD SHS NEW -499 Sold Out 0
AUTOBYTEL INC COM NEW 231 231 New 15,100
BAIDU INC SPON ADR REP A 1,259 -844 (40.14) 6,190