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Filing Detail
Form SC 13G - Statement of acquisition of beneficial ownership by individuals:
SEC Accession No. 0000080255-12-000095
Filing Date
2012-02-09
Accepted
2012-02-09 11:27:38
Documents
1

Document Format Files

Seq Description Document Type Size
1 12/31/2011 supx13gdec11.htm SC 13G 35698
  Complete submission text file 0000080255-12-000095.txt   37216
Mailing Address P.O. BOX 89000 BALTIMORE MD 21289
Business Address 100 EAST PRATT ST BALTIMORE MD 21202 (410)345-6603
PRICE T ROWE ASSOCIATES INC /MD/ (Filed by) CIK: 0000080255 (see all company filings)

IRS No.: 520556948 | State of Incorp.: MD | Fiscal Year End: 1231
Type: SC 13G
SIC: 6200 Security & Commodity Brokers, Dealers, Exchanges & Services

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.: 12585232
SIC: 3674 Semiconductors & Related Devices