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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001144204-13-005746
Filing Date
2013-02-04
Accepted
2013-02-04 15:44:21
Documents
1

Document Format Files

Seq Description Document Type Size
1 SC 13G/A v333511_sc13ga.htm SC 13G/A 65630
  Complete submission text file 0001144204-13-005746.txt   67088
Mailing Address 222 WEST ADAMS CHICAGO IL 60606
Business Address 222 WEST ADAMS ST CHICAGO IL 60606-5312 3122361600
BLAIR WILLIAM & CO/IL (Filed by) CIK: 0000902367 (see all company filings)

IRS No.: 362214610 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000

Mailing Address 47467 FREMONT BLVD. FREMONT CA 94538
Business Address 47467 FREMONT BLVD. FREMONT CA 94538 510-743-1200
VOLTERRA SEMICONDUCTOR CORP (Subject) CIK: 0001050550 (see all company filings)

IRS No.: 943251865 | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-80375 | Film No.: 13569915
SIC: 3674 Semiconductors & Related Devices