OBERWEIS ASSET MANAGEMENT INC/ Information

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

Report Date: 12/31/2014

Position Statistics

Total Positions 149
New Positions 17
Increased Positions 44
Decreased Positions 81
Positions with Activity 125
Sold Out Positions 22
Total Mkt Value (in $ millions) 390

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

Sector Weighting

Basic Materials 0.06%
Capital Goods 4.34%
Conglomerates
Consumer Cyclical 6.86%
Consumer/Non-Cyclical 0.19%
Energy 3.84%
Financial 10.08%
Healthcare 18.54%
Services 14.8%
Technology 29.81%
Transportation
Utilities

149 Positions as of 12/31/2014

Company ▲ Class Value of Shares ($1,000s) Change in Value ($1,000s) Change (%) Shares Held
21VIANET GROUP INC SPONSORED ADR 10,707 -1,729 (13.9) 530,059
500 COM LTD SPON ADR REP A 493 -4,543 (90.21) 28,666
8X8 INC NEW COM 6,173 -146 (2.31) 697,504
AAC HLDGS INC COM 476 476 New 14,700
ACADIA HEALTHCARE COMPANY INC COM 1,496 -94 (5.94) 20,600
ALIBABA GROUP HLDG LTD SPONSORED ADS 1,141 431 60.75 13,495
ALLIANCE FIBER OPTIC PRODS INC COM NEW -539 Sold Out 0
AMBARELLA INC SHS 1,559 -2,654 (63) 21,611
AMGEN INC COM 485 -7 (1.4) 2,889
ANI PHARMACEUTICALS INC COM 1,180 1,180 New 16,800
ANIKA THERAPEUTICS INC COM -593 Sold Out 0
APPLE INC COM 495 38 8.23 3,800
ASTRO-MED INC NEW COM 195 New 13,900
ASTRONICS CORP COM 8,860 -206 (2.27) 119,348
ATRICURE INC COM 814 New 38,000
ATTUNITY LTD SHS NEW 408 -203 (33.21) 37,810
BAIDU INC SPON ADR REP A 2,243 876 64.13 10,340
BANK NEW YORK MELLON CORP COM 287 .02 6,822
BHP BILLITON PLC SPONSORED ADR -194 Sold Out 0
BITAUTO HLDGS LTD SPONSORED ADS 4,992 -629 (11.18) 81,000


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