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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000936753-20-000043
Filing Date
2020-02-14
Accepted
2020-02-14 08:58:44
Documents
1

Document Format Files

Seq Description Document Type Size
1 SC13GA RUBICON DEC2019 rbcn.txt SC 13G/A 6946
  Complete submission text file 0000936753-20-000043.txt   8657
Mailing Address 200 EAST RANDOLPH STREET SUITE 2900 CHICAGO IL 60601
Business Address 200 EAST RANDOLPH STREET SUITE 2900 CHICAGO IL 60601 (312) 726-0140
ARIEL INVESTMENTS, LLC (Filed by) CIK: 0000936753 (see all company filings)

IRS No.: 020712418 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A

Mailing Address 900 EAST GREEN STREET BENSENVILLE IL 60106
Business Address 900 EAST GREEN STREET BENSENVILLE IL 60106 (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.: 20614334
SIC: 3674 Semiconductors & Related Devices