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Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000912938-14-000366
Filing Date
2014-10-02
Accepted
2014-10-02 15:33:04
Documents
1

Document Format Files

Seq Description Document Type Size
1 RUBICON TECHNOLOGY, INC. rubicon2.htm SC 13G/A 44282
  Complete submission text file 0000912938-14-000366.txt   45857
Mailing Address 111 HUNTINGTON AVENUE 24TH FLOOR BOSTON MA 02199
Business Address 111 HUNTINGTON AVENUE 24TH FLOOR BOSTON MA 02199 18006372929
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ (Filed by) CIK: 0000912938 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000

Mailing Address 9931 FRANKLIN AVENUE FRANKLIN PARK IL 60131
Business Address 9931 FRANKLIN AVENUE FRANKLIN PARK IL 60131 (847) 295-7000
Rubicon Technology, Inc. (Subject) CIK: 0001410172 (see all company filings)

IRS No.: 364419301 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-83694 | Film No.: 141136204
SIC: 3674 Semiconductors & Related Devices