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Notable Holders of Rubicon Technology, Inc. (RBCN)

  |   Expand Research on RBCN   |   * Does Not Fully Represent All Holders
Fund Title Shares % Owned Source
Sparta Asset Management, LLC COM 2,086,406 9.24% 13F
VANGUARD GROUP INC COM 1,033,453 4.58% 13F
BlackRock Fund Advisors COM 752,686 3.33% 13F
Invesco Ltd. COMMON 652,332 2.89% 13F
BlackRock Institutional Trust Company, N.A. COM 500,217 2.22% 13F
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO COM 435,366 1.93% 13F
DIMENSIONAL FUND ADVISORS LP COM 374,553 1.66% 13F
ARTIS CAPITAL MANAGEMENT, L.P. COM 321,500 1.42% 13F
GMT CAPITAL CORP COM 299,451 1.33% 13F
NORTHERN TRUST CORP COM 263,450 1.17% 13F
GAM Holding Ltd. 254,200 1.13% 13F
MORGAN STANLEY COM 105,258 0.47% 13F
AMERIPRISE FINANCIAL INC COM 95,450 0.42% 13F
BATTERYMARCH FINANCIAL MANAGEMENT INC COM 95,200 0.42% 13F
UNITED SERVICES AUTOMOBILE ASSOCIATION COMMON 95,200 0.42% 13F
FIRST TRUST ADVISORS LP COM 89,083 0.39% 13F
PUBLIC SECTOR PENSION INVESTMENT BOARD COM STK 82,200 0.36% 13F
TIAA CREF INVESTMENT MANAGEMENT LLC COM 79,109 0.35% 13F
BARCLAYS PLC (PUT) OPT 76,700 0.34% 13F
PRINCIPAL FINANCIAL GROUP INC COM 74,445 0.33% 13F
ROYAL BANK OF CANADA \ COM 71,158 0.32% 13F
Walthausen & Co., LLC 70,976 0.31% 13F
GEODE CAPITAL MANAGEMENT LLC COM 60,182 0.27% 13F
BlackRock Investment Management, LLC COM 59,565 0.26% 13F
JPMORGAN CHASE & CO COMMON 56,688 0.25% 13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM * RUBICON TECHNOLOGY 55,170 0.24% 13F
STONEBRIDGE CAPITAL MANAGEMENT INC COM 52,690 0.23% 13F
NEW YORK STATE COMMON RETIREMENT FUND COMMON STOCK 47,500 0.21% 13F
Liberty Mutual Group Asset Management Inc. COM 44,642 0.20% 13F
SCHWAB CHARLES INVESTMENT MANAGEMENT INC COM 33,996 0.15% 13F
HARVEY CAPITAL MANAGEMENT INC COM 31,250 0.14% 13F
NEW YORK STATE TEACHERS RETIREMENT SYSTEM COM 30,100 0.13% 13F
ROYAL BANK OF SCOTLAND GROUP PLC COM 28,416 0.13% 13F
GUGGENHEIM CAPITAL LLC COM 26,268 0.12% 13F
PARAMETRIC PORTFOLIO ASSOCIATES Common Stock 23,984 0.11% 13F
LEGAL & GENERAL GROUP PLC COM 22,100 0.10% 13F
ING INVESTMENT MANAGEMENT CO COM 20,530 0.09% 13F
CREDIT AGRICOLE S A COM 19,400 0.09% 13F
COMERICA BANK COM 18,313 0.08% 13F
TEACHERS ADVISORS INC COM 15,792 0.07% 13F
BLACKROCK ADVISORS LLC COM 15,287 0.07% 13F
KNIGHT CAPITAL GROUP, INC. COM 14,810 0.07% 13F
Manulife Asset Management (North America) Ltd COM 14,523 0.06% 13F
AMERICAN INTERNATIONAL GROUP INC COM 14,380 0.06% 13F
SG Americas Securities, LLC 14,182 0.06% 13F
LMR Master Fund Ltd COM 11,368 0.05% 13F
LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC COM 11,195 0.05% 13F
DEUTSCHE BANK AG\ COM 7,007 0.03% 13F
First Allied Securities, Inc. COM 6,775 0.03% 13F
PineBridge Investments Ltd COM 3,507 0.02% 13F
PNC FINANCIAL SERVICES GROUP INC COM 3,000 0.01% 13F
WELLS FARGO & CO/MN EQUITY 2,730 0.01% 13F
RUSSELL FRANK CO/ COMMON STOCKS 2,724 0.01% 13F