SHAPIRO ROBERT N - RUBICON TECHNOLOGY INC ownership

RUBICON TECHNOLOGY INC's ticker is RBCN and the CUSIP is 78112T107. A total of 106 filers reported holding RUBICON TECHNOLOGY INC in Q3 2013. The put-call ratio across all filers is 0.32 and the average weighting 0.1%.

Quarter-by-quarter ownership
SHAPIRO ROBERT N ownership history of RUBICON TECHNOLOGY INC
ValueSharesWeighting
Q3 2013$46,0003,7920.01%
Other shareholders
RUBICON TECHNOLOGY INC shareholders Q3 2013
NameSharesValueWeighting ↓
AEGIS FINANCIAL CORP 564,548$339,0000.33%
RIVER GLOBAL INVESTORS LLP 471,900$288,0000.08%
BOURGEON CAPITAL MANAGEMENT LLC 125,000$75,0000.05%
ICM ASSET MANAGEMENT INC/WA 28,340$17,0000.02%
Ariel Investments 3,251,726$1,951,0000.02%
Ancora Advisors LLC 160,700$96,0000.01%
WOLVERINE ASSET MANAGEMENT LLC 364,256$218,0000.00%
ROYCE & ASSOCIATES LP 771,090$477,0000.00%
Renaissance Technologies 832,900$500,0000.00%
Intellectus Partners, LLC 4,000$2,0000.00%
View complete list of RUBICON TECHNOLOGY INC shareholders