Stereotaxis, Inc. — Major Shareholding Notification 2010

Feb 11, 2010

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED

PURSUANT TO RULE 13d-2(b)

(Amendment No. 2) 1

| Stereotaxis,
Inc. |
| --- |
| (Name
of Issuer) |

| Common
Stock, $0.001 Par Value |
| --- |
| (Title
of Class of Securities) |

85916J102
(CUSIP
Number)

| December
31, 2009 |
| --- |
| (Date
of Event Which Requires Filing of this
Statement) |

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

o Rule 13d-1(b)

x Rule 13d-1(c)

o Rule 13d-1(d)

---

1 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.

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 ).

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON Ramius Navigation Master Fund LTD | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (b) o |
| 3 | SEC
USE ONLY | |
| 4 | CITIZENSHIP
OR PLACE OF ORGANIZATION Cayman
Islands | |
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH | 5 | SOLE
VOTING POWER 1,433,927(1) |
| | 6 | SHARED
VOTING POWER 0
shares |
| | 7 | SOLE
DISPOSITIVE POWER 1,433,927(1) |
| | 8 | SHARED
DISPOSITIVE POWER 0
shares |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,433,927(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 2.8% | |
| 12 | TYPE
OF REPORTING PERSON CO | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

2

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON Ramius Enterprise Master Fund LTD | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (b) o |
| 3 | SEC
USE ONLY | |
| 4 | CITIZENSHIP
OR PLACE OF ORGANIZATION Cayman
Islands | |
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH | 5 | SOLE
VOTING POWER 358,481(1) |
| | 6 | SHARED
VOTING POWER 0
shares |
| | 7 | SOLE
DISPOSITIVE POWER 358,481(1) |
| | 8 | SHARED
DISPOSITIVE POWER 0
shares |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 358,481(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) Less
than 1% | |
| 12 | TYPE
OF REPORTING PERSON CO | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

3

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON RCG
PB, LTD | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (b) o |
| 3 | SEC
USE ONLY | |
| 4 | CITIZENSHIP
OR PLACE OF ORGANIZATION Cayman
Islands | |
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH | 5 | SOLE
VOTING POWER 1,433,927(1) |
| | 6 | SHARED
VOTING POWER 0
shares |
| | 7 | SOLE
DISPOSITIVE POWER 1,433,927(1) |
| | 8 | SHARED
DISPOSITIVE POWER 0
shares |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,433,927(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 2.8% | |
| 12 | TYPE
OF REPORTING PERSON CO | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

4

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON Ramius Advisors , LLC | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (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 1,792,408(1) |
| | 6 | SHARED
VOTING POWER 0
shares |
| | 7 | SOLE
DISPOSITIVE POWER 1,792,408(1) |
| | 8 | SHARED
DISPOSITIVE POWER 0
shares |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,792,408(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.4% | |
| 12 | TYPE
OF REPORTING PERSON IA,
OO | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

5

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON Ramius
LLC | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (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 1,792,408(1) |
| | 6 | SHARED
VOTING POWER 0
shares |
| | 7 | SOLE
DISPOSITIVE POWER 1,792,408(1) |
| | 8 | SHARED
DISPOSITIVE POWER 0
shares |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,792,408(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.4% | |
| 12 | TYPE
OF REPORTING PERSON OO | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

6

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON Cowen
Group, Inc. | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (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 1,792,408(1) |
| | 6 | SHARED
VOTING POWER 0
shares |
| | 7 | SOLE
DISPOSITIVE POWER 1,792,408(1) |
| | 8 | SHARED
DISPOSITIVE POWER 0
shares |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,792,408(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.4% | |
| 12 | TYPE
OF REPORTING PERSON CO | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

7

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON RCG
Holdings LLC | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (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 1,792,408(1) |
| | 6 | SHARED
VOTING POWER 0
shares |
| | 7 | SOLE
DISPOSITIVE POWER 1,792,408(1) |
| | 8 | SHARED
DISPOSITIVE POWER 0
shares |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,792,408(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.4% | |
| 12 | TYPE
OF REPORTING PERSON OO | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

8

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON C4S
& Co., L.L.C. | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (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 1,792,408(1) |
| | 6 | SHARED
VOTING POWER 0
shares |
| | 7 | SOLE
DISPOSITIVE POWER 1,792,408(1) |
| | 8 | SHARED
DISPOSITIVE POWER 0
shares |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,792,408(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.4% | |
| 12 | TYPE
OF REPORTING PERSON OO | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

9

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON Peter
A. Cohen | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (b) o |
| 3 | SEC
USE ONLY | |
| 4 | CITIZENSHIP
OR PLACE OF ORGANIZATION United
States | |
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH | 5 | SOLE
VOTING POWER 0
shares |
| | 6 | SHARED
VOTING POWER 1,792,408(1) |
| | 7 | SOLE
DISPOSITIVE POWER 0
shares |
| | 8 | SHARED
DISPOSITIVE POWER 1,792,408(1) |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,792,408(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.4% | |
| 12 | TYPE
OF REPORTING PERSON IN | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

10

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON Morgan
B. Stark | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (b) o |
| 3 | SEC
USE ONLY | |
| 4 | CITIZENSHIP
OR PLACE OF ORGANIZATION United
States | |
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH | 5 | SOLE
VOTING POWER 0
shares |
| | 6 | SHARED
VOTING POWER 1,792,408(1) |
| | 7 | SOLE
DISPOSITIVE POWER 0
shares |
| | 8 | SHARED
DISPOSITIVE POWER 1,792,408(1) |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,792,408(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.4% | |
| 12 | TYPE
OF REPORTING PERSON IN | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

11

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON Thomas
W. Strauss | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (b) o |
| 3 | SEC
USE ONLY | |
| 4 | CITIZENSHIP
OR PLACE OF ORGANIZATION United
States | |
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH | 5 | SOLE
VOTING POWER 0
shares |
| | 6 | SHARED
VOTING POWER 1,792,408(1) |
| | 7 | SOLE
DISPOSITIVE POWER 0
shares |
| | 8 | SHARED
DISPOSITIVE POWER 1,792,408(1) |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,792,408(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.4% | |
| 12 | TYPE
OF REPORTING PERSON IN | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

12

CUSIP NO. 85916J102

| 1 | NAME
OF REPORTING PERSON Jeffrey
M. Solomon | |
| --- | --- | --- |
| 2 | CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP | (a) x (b) o |
| 3 | SEC
USE ONLY | |
| 4 | CITIZENSHIP
OR PLACE OF ORGANIZATION United
States | |
| NUMBER
OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH | 5 | SOLE
VOTING POWER 0
shares |
| | 6 | SHARED
VOTING POWER 1,792,408(1) |
| | 7 | SOLE
DISPOSITIVE POWER 0
shares |
| | 8 | SHARED
DISPOSITIVE POWER 1,792,408(1) |
| 9 | AGGREGATE
AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,792,408(1) | |
| 10 | CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
SHARES | ¨ |
| 11 | PERCENT
OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.4% | |
| 12 | TYPE
OF REPORTING PERSON IN | |

(1) Represents shares of Common Stock currently issuable upon the exercise of certain warrants.

13

CUSIP NO. 85916J102

Item 1(a). Name of Issuer:

Stereotaxis, Inc., a Delaware corporation (the “Issuer”)

Item 1(b). Address of Issuer's Principal Executive Offices:

4320 Forest Park Avenue

St. Louis, Missouri 63108

Item 2(a). Name of Person Filing

Item 2(b). Address of Principal Business Office or, if None, Residence

Item 2(c). Citizenship

Ramius Navigation Master Fund Ltd (“Navigation Master Fund”)

c/o Citco Fund Services (Cayman Islands) Limited

Regatta Office Park

Windward 1, 2nd Floor

PO Box 31106

Grand Cayman KY1-1205

Cayman Islands

Citizenship: Cayman Islands

Ramius Enterprise Master Fund Ltd (“Enterprise Master Fund”)

c/o Citco Fund Services (Cayman Islands) Limited

Regatta Office Park

Windward 1, 2nd Floor

PO Box 31106

Grand Cayman KY1-1205

Cayman Islands

Citizenship: Cayman Islands

RCG PB, Ltd (“RCG PB”)

c/o Citco Fund Services (Cayman Islands) Limited

Regatta Office Park

Windward 1, 2nd Floor

PO Box 31106

Grand Cayman KY1-1205

Cayman Islands

Citizenship: Cayman Islands

Ramius Advisors, LLC (“Ramius Advisors”)

c/o Ramius LLC

599 Lexington Avenue, 20th Floor

New York, New York 10022

Citizenship: Delaware

Ramius LLC (“Ramius”)

c/o Ramius LLC

599 Lexington Avenue, 20th Floor

New York, New York 10022

Citizenship: Delaware

14

CUSIP NO. 85916J102

Cowen Group, Inc. (“Cowen”)

c/o Ramius LLC

599 Lexington Avenue, 20th Floor

New York, New York 10022

Citizenship: Delaware

RCG Holdings LLC (“RCG Holdings”)

c/o Ramius LLC

599 Lexington Avenue, 20th Floor

New York, New York 10022

Citizenship: Delaware

C4S & Co., L.L.C. (“C4S”)

c/o Ramius LLC

599 Lexington Avenue, 20th Floor

New York, New York 10022

Citizenship: Delaware

Peter A. Cohen

c/o Ramius LLC

599 Lexington Avenue, 20th Floor

New York, New York 10022

Citizenship: United States

Morgan B. Stark

c/o Ramius LLC

599 Lexington Avenue, 20th Floor

New York, New York 10022

Citizenship: United States

Thomas W. Strauss

c/o Ramius LLC

599 Lexington Avenue, 20th Floor

New York, New York 10022

Citizenship: United States

Jeffrey M. Solomon

c/o Ramius LLC

599 Lexington Avenue, 20th Floor

New York, New York 10022

Citizenship: United States

Item 2(d). Title of Class of Securities:

Common Stock, $0.001 par value (the “Common Stock”)

Item 2(e). CUSIP Number:

85916J102

15

CUSIP NO. 85916J102

ITEM 3. If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a:

/x/ Not applicable.

(a) / / Broker or dealer registered under Section 15 of the Exchange Act.

(b) / / Bank as defined in Section 3(a)(6) of the Exchange Act.

(c) / / Insurance company as defined in Section 3(a)(19) of the Exchange Act.

(d) / / Investment company registered under Section 8 of the Investment Company Act.

(e) / / An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E).

(f) / / An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F).

(g) / / A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G).

(h) / / A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act.

(i) / / A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act.

(j) / / Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

(k) / / Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with Rule 240.13d-1(b)(1)(ii)(J), please specify the type of institution: ____

ITEM 4. Ownership

(a) Amount beneficially owned:

As of February 1, 2010, Navigation Master Fund beneficially owned 1,433,927 shares of Common Stock issuable upon the exercise of certain warrants.

As of February 1, 2010, Enterprise Master Fund beneficially owned 358,481 shares of Common Stock issuable upon the exercise of certain warrants.

RCG PB, as the sole shareholder of Navigation Master Fund, may be deemed the beneficial owner of the 1,433,927 shares of Common Stock beneficially owned by Navigation Master Fund.

Ramius Advisors, as the investment advisor of each of Navigation Master Fund and Enterprise Master Fund, may be deemed the beneficial owner of the (i) 1,433,927 shares of Common Stock beneficially owned by Navigation Master Fund and (ii) 358,481 shares of Common Stock beneficially owned by Enterprise Master Fund.

Ramius, as the sole member of Ramius Advisors, may be deemed the beneficial owner of the (i) 1,433,927 shares of Common Stock beneficially owned by Navigation Master Fund and (ii) 358,481 shares of Common Stock beneficially owned by Enterprise Master Fund.

16

CUSIP NO. 85916J102

Cowen, as the sole member of Ramius, may be deemed the beneficial owner of the (i) 1,433,927 shares of Common Stock beneficially owned by Navigation Master Fund and (ii) 358,481 shares of Common Stock beneficially owned by Enterprise Master Fund.

RCG Holdings, as a significant shareholder of Cowen, may be deemed the beneficial owner of the (i) 1,433,927 shares of Common Stock beneficially owned by Navigation Master Fund and (ii) 358,481 shares of Common Stock beneficially owned by Enterprise Master Fund.

C4S, as the managing member of RCG Holdings, may be deemed the beneficial owner of the (i) 1,433,927 shares of Common Stock beneficially owned by Navigation Master Fund and (ii) 358,481 shares of Common Stock beneficially owned by Enterprise Master Fund.

Messrs. Cohen, Stark, Strauss and Solomon, as the sole managing members of C4S, may be deemed the beneficial owners of the (i) 1,433,927 shares of Common Stock beneficially owned by Navigation Master Fund and (ii) 358,481 shares of Common Stock beneficially owned by Enterprise Master Fund.

The foregoing should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of any shares of Common Stock owned by another Reporting Person. In addition, each of RCG PB, Ramius Advisors, Ramius, Cowen, RCG Holdings, C4S and Messrs. Cohen, Stark, Strauss and Solomon disclaims beneficial ownership of the shares of Common Stock beneficially owned by Navigation Master Fund and Enterprise Master Fund and the filing of this statement shall not be construed as an admission that any such person is the beneficial owner of any such securities.

(b) Percent of class:

Based on 50,258,451 shares outstanding as of October 31, 2009, as disclosed by the Issuer in its Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 6, 2009.

As of February 1, 2010, Navigation Master Fund beneficially owned approximately 2.8% of the outstanding shares of Common Stock. As of February 1, 2010, RCG PB may be deemed to beneficially own approximately 2.8% of the outstanding shares of Common Stock.

As of February 1, 2010, Enterprise Master Fund beneficially owned less than 1% of the outstanding shares of Common Stock.

As of February 1, 2010, each of Ramius Advisors, Ramius, Cowen, RCG Holdings, C4S and Messrs. Cohen, Stark, Strauss and Solomon may be deemed to beneficially own approximately 3.4% of the outstanding shares of Common Stock.

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

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

See Cover Pages Items 5-9.

(ii) Shared power to vote or to direct the vote

See Cover Pages Items 5-9.

(iii) Sole power to dispose or to direct the disposition of

See Cover Pages Items 5-9.

17

CUSIP NO. 85916J102

(iv) Shared power to dispose or to direct the disposition of

See Cover Pages Items 5-9.

ITEM 5. Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that As of February 1, 2010 the reporting person has ceased to be the beneficial owner of more than 5 percent of the class of securities, check the following [ X ].

ITEM 6. Ownership of More than Five Percent on Behalf of Another Person.

Not applicable.

ITEM 7. Identification and Classification of the Subsidiary That Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Not applicable.

ITEM 8. Identification and Classification of Members of the Group.

See Exhibit 99.1.

ITEM 9. Notice of Dissolution of Group.

Not applicable.

ITEM 10. Certifications.

By signing below each of the undersigned certifies that, to the best of its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

18

CUSIP NO. 85916J102

SIGNATURES

After reasonable inquiry and to the best of his knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

Dated: February 11, 2010

RAMIUS ENTERPRISE MASTER FUND LTD By: Ramius Advisors, LLC, its investment advisor RAMIUS NAVIGATION MASTER FUND LTD By: Ramius Advisors, LLC, its investment advisor RCG PB, LTD By: Ramius Advisors, LLC, its investment advisor RAMIUS ADVISORS, LLC By: Ramius LLC, its sole member RAMIUS LLC By: Cowen Group, Inc., its sole member COWEN GROUP, INC. RCG HOLDINGS LLC By: C4S & Co., L.L.C., its managing member C4S & CO., L.L.C.

By:
Name:	Jeffrey
M. Solomon
Title:	Authorized
Signatory

| JEFFREY
M. SOLOMON |
| --- |
| Individually
and as attorney-in-fact for Peter
A. Cohen, Morgan B. Stark and Thomas W.
Strauss |

19