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(Amendment
No.
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5
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)*
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Power-One,
Inc.
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(Name
of Issuer)
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Common
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(Title
of Class of Securities)
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739308104
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(CUSIP
Number)
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December
31, 2009
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(Date
of Event Which Requires Filing of this
Statement)
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*
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The
remainder of this cover page shall be filled out for a reporting person’s
initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which
would alter the disclosures provided in a prior cover
page.
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CUSIP
No. 739308104
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1. Names of Reporting Persons.
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Security
Investors, LLC
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I.R.S.
Identification Nos. of above persons
(entities only).
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48-1183041
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2. Check the Appropriate Box if a Member of a Group
(See Instructions)
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(a)
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[_] |
(b)
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[_] |
Not
Applicable
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[X] |
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3. SEC Use Only
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||
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4. Citizenship or Place of
Organization
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A
limited liability company organized under
the laws of the State of Kansas.
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Number
of Shares
Beneficially Owned
by
Each Reporting
Person With
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5. Sole Voting Power
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10,344,660
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6. Shared Voting Power
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-0-
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7. Sole Dispositive Power
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10,344,660
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8. Shared Dispositive Power
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-0-
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9. Aggregate
Amount Beneficially Owned by Each Reporting Person
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10,344,660
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10. Check
if the Aggregate Amount in Row (9) Excludes Certain Shares
(See Instructions)
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Not
applicable
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11. Percent
of Class Represented by Amount in Row (9)
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11.73%
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12. Type
of Reporting Person (See Instructions)
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IA
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(a)
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Name
of Issuer:
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Power-One,
Inc.
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(b)
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Address
of Issuer’s Principal Executive Offices:
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740
Calle Plano, Camarillo, California
93012
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(a)
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Name
of Person Filing:
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Security
Investors, LLC
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(b)
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Address
of Principal Business Office or, if none, Residence:
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One
Security Benefit Place, Topeka, Kansas 66636-0001
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(c)
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Citizenship:
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Security
Investors, LLC is a Kansas limited liability company.
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(d)
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Title
of Class of Securities:
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Common
Stock
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(e)
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CUSIP
Number:
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739308104
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ITEM
3
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If
this statement is filed pursuant to §§240.13d-1(b), or 240.13d-2(b) or
(c), check whether the person filing is
a:
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(a)
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[_]
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Broker
or dealer registered under section 15 of the Act (15 U.S.C.
78o).
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(b)
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[_]
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Bank
as defined in section 3(a)(6) of the Act (15 U.S.C.
78c).
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(c)
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[_]
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Insurance
company as defined in section 3(a)(19) of the Act (15 U.S.C.
78c).
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(d)
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[_]
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Investment
company registered under section 8 of the Investment Company Act of 1940
(15 U.S.C. 80a-8).
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(e)
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[X]
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An
investment adviser in accordance with
§240.13d-1(b)(1)(ii)(E);
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(f)
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[_]
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An
employee benefit plan or endowment fund in accordance with
§240.13d-1(b)(1)(ii)(F);
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(g)
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[_]
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A
parent holding company or control person in accordance with
§240.13d-1(b)(1)(ii)(G);
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(h)
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[_]
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A
savings association as defined in Section 3(b) of the Federal Deposit
Insurance Act (12 U.S.C. 1813);
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(i)
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[_]
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A
church plan that is excluded from the definition of an investment company
under section 3(c)(14) of the Investment Company Act of 1940
(15 U.S.C. 80a-3);
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(j)
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[_]
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Group,
in accordance with
§240.13d-1(b)(1)(ii)(J).
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ITEM
4
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Ownership.
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(a)
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Amount beneficially owned: | |||
| As of December 31, 2009, Security Investors, LLC has the sole power to direct the vote and to dispose of 10,344,660 shares of Power-One, Inc. common stock of a total of 88,198,670 shares outstanding.** | ||||
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(b)
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Percent of class: | |||
| 11.73% of the common stock | ||||
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(c)
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Number of shares as to which the person has: | |||
| (i) | Sole power to vote or direct the vote: See Item 4(a) above. 10,344,660 shares of common stock | |||
| (ii) | Shared power to vote or direct the vote: Not applicable | |||
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(iii) | Sole power to dispose or direct the disposition of: See Item 4(a) above. 10,344,660 shares of common stock | ||
| (iv) | Shared power to dispose or direct the disposition of: Not applicable | |||
| ** | This report is being filed on behalf of Security Investors, LLC (“SI”), a Kansas limited liability company, and/or certain investment advisory clients relating to their collective beneficial ownership of shares of common stock of the Issuer. SI is a registered investment adviser under Section 203 of the Investment Advisers Act of 1940. As a result of its role as investment adviser, SI may be deemed to be the beneficial owner of the securities of the Issuer for purposes of §13(d) and 13(g) of the Securities Exchange Act of 1934. SI has the sole power to dispose of the shares. | |||
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ITEM
5
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Ownership
of Five Percent or Less of a Class.
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ITEM
6
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Ownership
of More Than Five percent on Behalf of Another
Person.
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ITEM
7
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Identification
and Classification of the Subsidiary which Acquired the Security Being
Reported on by the Parent Holding
Company.
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ITEM
8
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Identification
and Classification of Members of the
Group.
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ITEM
9
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Notice
of Dissolution of Group.
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ITEM
10
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Certification.
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Dated: February
12, 2010
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| BRENDA M. HARWOOD |
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Brenda
M. Harwood
Vice
President & Chief Compliance
Officer
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