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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000902219-14-000935
Filing Date
2014-02-14
Accepted
2014-02-14 09:39:35
Documents
1

Document Format Files

Seq Description Document Type Size
1 DISCLOSURE DOCUMENT sec_filing.htm SC 13G 17653
  Complete submission text file 0000902219-14-000935.txt   19225
Mailing Address 1235 BORDEAUX DR SUNNYVALE CA 94089
Business Address 1235 BORDEAUX DR SUNNYVALE CA 94089 4087440100
SUPERTEX INC (Subject) CIK: 0000730000 (see all company filings)

IRS No.: 942328535 | State of Incorp.: CA | Fiscal Year End: 1221
Type: SC 13G | Act: 34 | File No.: 005-36955 | Film No.: 14611454
SIC: 3674 Semiconductors & Related Devices

Mailing Address 280 CONGRESS STREET BOSTON MA 02210
Business Address 280 CONGRESS STREET BOSTON MA 02210 6179515000
WELLINGTON MANAGEMENT CO LLP (Filed by) CIK: 0000902219 (see all company filings)

IRS No.: 042683227 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC 13G
SIC: 0000