SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

o

Rule 13d-1(b)

x

Rule 13d-1(c)

o

Rule 13d-1(d)

CUSIP No. 858603103

1.

Name of Reporting Persons
I.R.S. Identification No. of Above Persons (Entities Only)
David M. Knott

2.

Check the Appropriate Box if a Member of a Group*

(a)

o

(b)

x

3.

SEC Use Only

4.

Citizenship or Place of Organization
United States of America

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5.

Sole Voting Power:
175,768

6.

Shared Voting Power:
4,800

7.

Sole Dispositive Power:
182,118

8.

Shared Dispositive Power:
0

9.

Aggregate Amount Beneficially Owned by Each Reporting Person:
182,118

10.

Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares*  o

11.

Percent of Class Represented by Amount in Row 9
4.3%

12.

Type of Reporting Person*
IN

CUSIP No. 858603103

1.

Name of Reporting Persons
I.R.S. Identification No. of Above Persons (Entities Only)
Dorset Management Corporation
11-2873658

2.

Check the Appropriate Box if a Member of a Group*

(a)

o

(b)

x

3.

SEC Use Only

4.

Citizenship or Place of Organization
New York

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5.

Sole Voting Power:
175,768

6.

Shared Voting Power:
4,800

7.

Sole Dispositive Power:
182,118

8.

Shared Dispositive Power:
0

9.

Aggregate Amount Beneficially Owned by Each Reporting Person:
182,118

10.

Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares*  o

11.

Percent of Class Represented by Amount in Row 9
4.3%

12.

Type of Reporting Person*
CO

Item 1(a)

Name of Issuer:

Item 1(b)

Address of Issuer’s Principal Executive Offices:

Item 2(a)

Name of Person(s) Filing:

Item 2(b)

Address of Principal Business Office or, if none, Residence:

Item 2(c)

Citizenship or Place of Organization:

Item 2(d)

Title of Class of Securities:

Item 2(e)

CUSIP Number:

Item 3

If this statement is filed pursuant to Rules 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a:

(a)

o

Broker or dealer registered under Section 15 of the Exchange Act;

(b)

o

Bank as defined in Section 3(a)(6) of the Exchange Act;

(c)

o

Insurance company as defined in Section 3(a)(19) of the Exchange Act;

(d)

o

Investment company registered under Section 8 of the Investment Company Act;

(e)

o

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

(f)

o

An employee benefit plan, or endowment fund in accordance with rule 13d-1(b)(l)(ii)(F);

(g)

o

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

(h)

o

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

(i)

o

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

(j)

o

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

Item 4

Ownership:

This statement is being filed to report the fact that as of the date hereof, Richard Murawczyk, the managing member of the general partner of Ostra Capital Partners, L.P. and Ostra Capital Partners VII, L.P., no longer is an employee of or has a trading arrangement with Dorset Management Corporation (“Dorset”), of which David M. Knott is the sole shareholder, director and president. The aggregate number of securities reported in each of Rows 6, 8 and 9 on pages 2-3 of this Schedule 13G no longer include any securities owned by Ostra Capital Partners, L.P. (“Ostra”). The general partner of Ostra is Ostra GP, LLC, and the manager of Ostra GP, LLC is an individual named Richard Murawczyk.

Item 5

Ownership of Five Percent or Less of a Class:

This statement is being filed to report the fact that as of the date hereof the following Reporting Persons have ceased to be the beneficial owner of more than five percent of the class of securities, as reported on Rows 5 through 9 and 11 on pages 2-3:

David M. Knott and Dorset Management Corporation.

Item 6

Ownership of More than Five Percent on Behalf of Another Person

N/A

Item 7

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company

Item 8

Identification and Classification of Members of the Group

Item 9

Notice of Dissolution of Group

Item 10

Certification

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and 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.

February 10, 2010

Date

/s/David M. Knott

David M. Knott

DORSET MANAGEMENT CORPORATION

By:

/s/David M. Knott

David M. Knott, President