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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0001104659-05-043270
Filing Date
2005-09-08
Accepted
2005-09-08 11:34:49
Documents
4
Group Members
IVY INVESTMENT MANAGEMENT COMPANYWADDELL & REED FINANCIAL SERVICES, INC.WADDELL & REED INVESTMENT MANAGEMENT COMPANYWADDELL & REED, INC.

Document Format Files

Seq Description Document Type Size
1 SC 13G a05-15897_1sc13g.htm SC 13G 146832
2 EX-1 a05-15897_1ex1.htm EX-1 14421
3 EX-2 a05-15897_1ex2.htm EX-2 1945
4 EX-3 a05-15897_1ex3.htm EX-3 48460
  Complete submission text file 0001104659-05-043270.txt   213753
Mailing Address 3839 SPINNAKER COURT FREMONT CA 94538
Business Address 3839 SPINNAKER COURT FREMONT CA 94538 510-743-1200
VOLTERRA SEMICONDUCTOR CORP (Subject) CIK: 0001050550 (see all company filings)

IRS No.: 943251865
Type: SC 13G | Act: 34 | File No.: 005-80375 | Film No.: 051074510
SIC: 3674 Semiconductors & Related Devices

Mailing Address PO BOX 29217 SHAWNEE MISSION KS 66201-9217
Business Address 6300 LAMAR AVE OVERLAND PARK KS 66202-4200 9132362000
WADDELL & REED FINANCIAL INC (Filed by) CIK: 0001052100 (see all company filings)

IRS No.: 510261715 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G
SIC: 6211 Security Brokers, Dealers & Flotation Companies