UNITED STATES

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G/A

Under the Securities Exchange Act of 1934

(Amendment No. 5)*

HydroGen Corporation

(Name of Issuer)

Common Stock

(Title of Class of Securities)

44887Q108

(CUSIP Number)

December 31, 2012**

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

x Rule 13d-1(b)

o Rule 13d-1(c)

o Rule 13d-1(d)

*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 disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

**This schedule 13G annual amendment is being filed pursuant to Rule 13d-2(b). It amends and supplements the Schedule 13G filed by Security Investors, LLC on December 31, 2008.

CUSIP No. 44887Q108

SCHEDULE 13G/A

Page 2 of 14 Pages


1	NAME OF REPORTING PERSONS Guggenheim Capital, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER 0
		6	SHARED VOTING POWER 1,949,246
		7	SOLE DISPOSITIVE POWER 0
		8	SHARED DISPOSITIVE POWER 1,949,246

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,949,246

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions)

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

15.26%

TYPE OF REPORTING PERSON (See Instructions)

CUSIP No. 44887Q108

SCHEDULE 13G/A

Page 3 of 14 Pages


1	NAME OF REPORTING PERSONS Guggenheim Partners, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER 0
		6	SHARED VOTING POWER 1,949,246
		7	SOLE DISPOSITIVE POWER 0
		8	SHARED DISPOSITIVE POWER 1,949,246

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,949,246

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions)

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

15.26%

TYPE OF REPORTING PERSON (See Instructions)

CUSIP No. 44887Q108

SCHEDULE 13G/A

Page 4 of 14 Pages


1	NAME OF REPORTING PERSONS GP Holdco, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER 0
		6	SHARED VOTING POWER 1,949,246
		7	SOLE DISPOSITIVE POWER 0
		8	SHARED DISPOSITIVE POWER 1,949,246

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,949,246

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions)

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

15.26%

TYPE OF REPORTING PERSON (See Instructions)

CUSIP No. 44887Q108

SCHEDULE 13G/A

Page 5 of 14 Pages


1	NAME OF REPORTING PERSONS GPFT Holdco, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER 0
		6	SHARED VOTING POWER 1,949,246
		7	SOLE DISPOSITIVE POWER 0
		8	SHARED DISPOSITIVE POWER 1,949,246

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,949,246

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions)

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

15.26%

TYPE OF REPORTING PERSON (See Instructions)

CUSIP No. 44887Q108

SCHEDULE 13G/A

Page 6 of 14 Pages


1	NAME OF REPORTING PERSONS Security Benefit Asset Management Holdings, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Kansas
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER 0
		6	SHARED VOTING POWER 1,949,246
		7	SOLE DISPOSITIVE POWER 0
		8	SHARED DISPOSITIVE POWER 1,949,246

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,949,246

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions)

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

15.26%

TYPE OF REPORTING PERSON (See Instructions)

CUSIP No. 44887Q108

SCHEDULE 13G/A

Page 7 of 14 Pages


1	NAME OF REPORTING PERSONS Rydex Holdings, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Kansas
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER 0
		6	SHARED VOTING POWER 1,949,246
		7	SOLE DISPOSITIVE POWER 0
		8	SHARED DISPOSITIVE POWER 1,949,246

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,949,246

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions)

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

15.26%

TYPE OF REPORTING PERSON (See Instructions)

CUSIP No. 44887Q108

SCHEDULE 13G/A

Page 8 of 14 Pages


1	NAME OF REPORTING PERSONS Security Investors, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions) (a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Kansas
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		5	SOLE VOTING POWER 0
		6	SHARED VOTING POWER 1,949,246
		7	SOLE DISPOSITIVE POWER 0
		8	SHARED DISPOSITIVE POWER 1,949,246

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,949,246

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions)

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

15.26%

TYPE OF REPORTING PERSON (See Instructions)

CUSIP No. 44887Q108

SCHEDULE 13G/A

Page 9 of 14 Pages

Item 1.

(a) Name of Issuer:

HydroGen Corporation

(b) Address of Issuer’s Principal Executive Offices:

10 East 40th Street, Suite 3405, New York, NY 10021

Item 2.

(a) Name of Person Filing:

This Statement is filed by Guggenheim Capital, LLC, Guggenheim Partners, LLC, GP Holdco, LLC, GPFT Holdco, LLC, Security Benefit Asset Management Holdings, LLC, Rydex Holdings, LLC and Securities Investors, LLC (“SI”). This Statement relates to the shares of Common Stock (the “Shares”), of the Issuer beneficially owned directly by SI, a Kansas limited liability company. Guggenheim Capital, LLC is the majority owner of Guggenheim Partners, LLC, GP Holdco, LLC, GPFT Holdco, LLC, Security Benefit Asset Management Holdings, LLC, Rydex Holdings, LLC and SI, which beneficially owns more than 5% of the Shares reported herein. 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 certain of the Shares of the Issuer reported herein for purposes of §13(d) and 13(g) of the Securities Exchange Act of 1934.

(b) Address of Principal Business Office, or, if none, Residence:

Guggenheim Capital, LLC: 227 West Monroe Street, Chicago, IL 60606

Guggenheim Partners, LLC: 227 West Monroe Street, Chicago, IL 60606

GP Holdco, LLC: 227 West Monroe Street, Chicago, IL 60606

GPFT Holdco, LLC: 227 West Monroe Street, Chicago, IL 60606

Security Benefit Asset Management Holdings, LLC: One SW Security Benefit Place, Topeka, Kansas 66636-0001

Rydex Holdings, LLC: One SW Security Benefit Place, Topeka, Kansas 66636-0001

Security Investors, LLC: One SW Security Benefit Place, Topeka, Kansas 66636-0001

(c) Citizenship:

Guggenheim Capital, LLC is a Delaware limited liability company.

Guggenheim Partners, LLC is a Delaware limited liability company.

GP Holdco, LLC is a Delaware limited liability company.

GPFT Holdco, LLC is a Delaware limited liability company.

Security Benefit Asset Management Holdings, LLC is a Kansas limited liability company.

Rydex Holdings, LLC is a Kansas limited liability company.

Security Investors, LLC is a Kansas limited liability company.

(d) Title of Class of Securities:

Common Stock

(e) CUSIP Number:

44887Q108

CUSIP No. 44887Q108

SCHEDULE 13G/A

Page 10 of 14 Pages


Item 3. 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:

(a)	¨	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b)	¨	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c)	¨	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d)	¨	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e)	x	An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E).

(f)	¨	An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F).

(g)	x	A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G).

(h)	¨	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813).

(i)	¨	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).

(j)	¨	A non-U.S. institution in accordance with §240.13d-1(b)(1)(ii)(J).

(k)	¨	A group, in accordance with §240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with §240.13d-1(b)(1)(ii)(J), please specify the type of institution:

CUSIP No. 44887Q108

SCHEDULE 13G/A

Page 11 of 14 Pages

Item 4. Ownership

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

(a) Amount beneficially owned:

As of December 31, 2012, Guggenheim Capital, LLC may be deemed the beneficial owner of 1,949,246 Shares, which amount includes 1,949,246 Shares beneficially owned directly by Securities Investors, LLC and indirectly by Rydex Holdings, LLC, Security Benefit Asset Management Holdings, LLC, GPFT Holdco, LLC, GP Holdco, LLC and Guggenheim Partners, LLC.

(b) Percent of class:

15.26% of the Common Stock

(c) Number of shares as to which the person has:

Guggenheim Capital, LLC

(i) Sole power to vote or to direct the vote: 0

(ii) Shared power to vote or to direct the vote: See Item 4(a) above. 1,949,246

HydroGen CORP SC 13G/A