Schedule 13G

-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, B7ScVI09pv3ebb1Uf78iehljneGWfBJgcRyWOVYaNabKuNiwEG92Lg0i9NCN3hyQ Dh8tMZdJD4aB2COoA+CdOg== 0001193125-07-025187.txt : 20070209 0001193125-07-025187.hdr.sgml : 20070209 20070209112049 ACCESSION NUMBER: 0001193125-07-025187 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20070209 DATE AS OF CHANGE: 20070209 GROUP MEMBERS: SOWOOD CAPITAL MANAGEMENT LLC SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: DIOMED HOLDINGS INC CENTRAL INDEX KEY: 0001074874 STANDARD INDUSTRIAL CLASSIFICATION: SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841] IRS NUMBER: 841480636 STATE OF INCORPORATION: NV FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G SEC ACT: 1934 Act SEC FILE NUMBER: 005-78121 FILM NUMBER: 07596186 BUSINESS ADDRESS: STREET 1: 1 DUNDEE PARK CITY: ANDOVER STATE: MA ZIP: 01810 BUSINESS PHONE: 978-475-7771 FORMER COMPANY: FORMER CONFORMED NAME: NATEXCO CORP DATE OF NAME CHANGE: 20001128 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: Sowood Capital Management LP CENTRAL INDEX KEY: 0001304294 IRS NUMBER: 743113983 STATE OF INCORPORATION: MA FISCAL YEAR END: 0630 FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: 500 BOYLSTON STREET STREET 2: 17TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 617-603-3400 MAIL ADDRESS: STREET 1: 500 BOYLSTON STREET STREET 2: 17TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 SC 13G 1 dsc13g.htm SCHEDULE 13G Schedule 13G


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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

Diomed Holdings, Inc.

(Name of Issuer)

Common Stock, par value $0.001

(Title of Class of Securities)

25454R207

(CUSIP Number)

January 30, 2007

(Date of Event which Requires Filing of this Statement)

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

¨ Rule 13d-1(b)

x Rule 13d-1(c)

¨ 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).


CUSIP No. 25454R207		13G		Page 2 of 6 Pages


1		NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

		Sowood Capital Management LP
2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
		(a) ¨
		(b) ¨
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

		1,541,800
		7 SOLE DISPOSITIVE POWER

		0
		8 SHARED DISPOSITIVE POWER

		1,541,800


9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

	1,541,800
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)	¨

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

	7.9%
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

	IA


CUSIP No. 25454R207		13G		Page 3 of 6 Pages


1		NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

		Sowood Capital Management LLC
2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
		(a) ¨
		(b) ¨
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

		1,541,800
		7 SOLE DISPOSITIVE POWER

		0
		8 SHARED DISPOSITIVE POWER

		1,541,800


9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

	1,541,800
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)	¨

11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

	7.9%
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

	HC


				Page 4 of 6 Pages

Item 1.

(a)

Name of Issuer

Diomed Holdings, Inc.

Item 1.

(b)

Address of Issuer’s Principal Executive Offices

One Dundee Park

Andover, MA 01810

Item 2.

(a)

Name of Person Filing

This Schedule 13G is being filed on behalf of the following persons (the “Reporting Persons”):

(i) Sowood Capital Management LP

(ii) Sowood Capital Management LLC

Item 2.

(b)

Address of Principal Business Office or, if None, Residence

Sowood Capital Management LP

500 Boylston Street, 17^th Floor

Boston, MA 02116

Sowood Capital Management LLC

500 Boylston Street, 17^th Floor

Boston, MA 02116

Item 2.

(c)

Citizenship

See Item 4 of the attached cover pages.

Item 2.

(d)

Title of Class of Securities

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

Item 2.

(e)

CUSIP Number

25454R207

Item 3.

Not Applicable as this Schedule 13G is filed pursuant to Rule 13d-1(c).


				Page 5 of 6 Pages


Item 4.	Ownership

	(a)	Amount beneficially owned: See Item 9 of the attached cover pages.

	(b)	Percent of class: See Item 11 on the attached cover pages.

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

		(i)	Sole power to vote or to direct the vote: See Item 5 of the attached cover pages.

		(ii)	Shared power to vote or to direct the vote: See Item 6 of the attached cover pages.

		(iii)	Sole power to dispose or to direct the disposition: See Item 7 of the attached cover pages.

		(iv)	Shared power to dispose or to direct the disposition: See Item 8 of the attached cover pages.

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

	Not Applicable.

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

	Investment funds managed by Sowood Capital Management LP are the owners of record of the Common Stock reported herein. Of the shares of Common Stock reported herein, 1,329,322 (6.8%) are held for the benefit of Sowood Alpha Fund Ltd. and 212,478 (1.1%) are held for the benefit of Sowood Alpha Fund LP. The general partner of Sowood Alpha Fund LP is Sowood Associates LP. Sowood Capital Management LLC is the sole general partner of Sowood Capital Management LP. Jeffrey B. Larson may be deemed to beneficially own the Common Stock reported herein because he may be deemed to control Sowood Capital Management LLC. Jeffrey Larson’s principal business address is 500 Boylston Street, 17^th Floor, Boston, MA 02116, and he is a U.S. citizen.

Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company

	Not Applicable.

Item 8.	Identification and Classification of Members of the Group

	Not Applicable.

Item 9.	Notice of Dissolution of Group

	Not Applicable.

Item 10.	Certification

	By signing below I certify that, to the best of my 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.

Page 6 of 6 Pages

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated: February 9, 2007


SOWOOD CAPITAL MANAGEMENT LP

By:		/s/ Megan Kelleher
Name:		Megan Kelleher
Title:		Managing Partner

SOWOOD CAPITAL MANAGEMENT LLC

By:		/s/ Megan Kelleher
Name:		Megan Kelleher
Title:		Authorized Signatory

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