RBCN

Rubicon Technology, Inc. Institutional Ownership

$3
*  
0.05
1.64%
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*Delayed - data as of May 22, 2015  -  Find a broker to begin trading RBCN now
Exchange: NASDAQ
Industry: Technology
Community Rating:
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Ownership Summary Institutional Holdings Insiders
(SEC Form 4)
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Ownership Summary


Institutional Ownership 88.46%
Total Shares Outstanding (millions) 26
Total Value of Holdings (millions) $71

Active Positions

Holders Shares
Increased Positions 34 2,857,068
Decreased Positions 37 2,067,468
Held Positions 20 18,250,094
Total Institutional Shares 91 23,174,630

New and Sold Out Positions


Holders Shares
New Positions 8 129,221
Sold Out Positions 13 1,190,889

91 Institutional Holders
23,174,630 Total Shares Held


Click on the column header links to resort ascending (▲) or descending (▼).
Owner Name Date Shared Held Change (Shares) Change (%) Value (in 1,000s)
ARIEL INVESTMENTS, LLC 03/31/2015 4,624,107 814,734 21.39 14,104
COLUMBIA WANGER ASSET MANAGEMENT LLC 03/31/2015 3,400,000 824,015 31.99 10,370
FMR LLC 03/31/2015 3,139,517 0 0.00 9,576
ROYCE & ASSOCIATES LLC 03/31/2015 1,557,848 40,500 2.67 4,751
ECOFIN LTD 03/31/2015 1,302,741 44,352 3.53 3,973
AEGIS FINANCIAL CORP 03/31/2015 879,200 433,200 97.13 2,682
VANGUARD GROUP INC 03/31/2015 765,332 36,239 4.97 2,334
BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. 03/31/2015 755,426 1,534 .20 2,304
BLACKROCK FUND ADVISORS 03/31/2015 704,030 (4,210) (0.59) 2,147
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 03/31/2015 499,906 2,607 .52 1,525
DIMENSIONAL FUND ADVISORS LP 03/31/2015 464,205 0 0.00 1,416
NEW YORK STATE COMMON RETIREMENT FUND 03/31/2015 446,200 65,782 17.29 1,361
NORTHERN TRUST CORP 03/31/2015 437,122 (6,213) (1.4) 1,333
STATE STREET CORP 03/31/2015 435,553 2,009 .46 1,328
PACIFIC RIDGE CAPITAL PARTNERS, LLC 03/31/2015 329,350 10,540 3.31 1,005

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