- Amended Statement of Ownership (SC 13G/A)

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G/A

Under the Securities Exchange Act of 1934

SatCon Technology Corp

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

803893106

(CUSIP Number)

06/10/2009

(Date of Event Which Requires Filing of this Statement)

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

      o  Rule 13d-1(b)

      þ  Rule 13d-1(c)

      o  Rule 13d-1(d)

 

 

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CUSIP No.		803893106	13G	Page		1		of		1	Pages

 

1		NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Pictet Asset Management SA (“PAM SA”)      The reporting person disclaim beneficial ownership of the shares reported, which are owned of record and beneficially by three non-U.S. investment funds, both managed by PAM SA.
2		CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
		(a)    o
		(b)    o
3		SEC USE ONLY
4		CITIZENSHIP OR PLACE OF ORGANIZATION
		Pictet Asset Management SA — Switzerland
			5		SOLE VOTING POWER: Pictet Asset Management SA: 2,700,000
NUMBER OF
SHARES			6		SHARED VOTING POWER:
BENEFICIALLY
OWNED BY					Pictet Asset Management SA: None
EACH			7		SOLE DISPOSITIVE POWER:
REPORTING
PERSON					Pictet Asset Management SA: 2,700,000
WITH			8		SHARED DISPOSITIVE POWER:
					Pictet Asset Management SA: None
9		AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
		Pictet Asset Management SA: 2,700,000
10		CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
		o
11		PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
		Pictet Asset Management SA: 5.23%
12		TYPE OF REPORTING PERSON:
		Pictet Asset Management SA: IA

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Item 1.

	(a)		Name of Issuer: SatCon Technology Corp
	(b)		Address of Issuer’s Principal Executive Offices:

27 Drydock Avenue
Boston, MA 02210
United States

Item 2

	(a)		Names of Person Filing:
			Pictet Asset Management SA (“PAM SA”)
	(b)		Address of Principal Business Office or, if none, Residence:

Pictet Asset Management SA:

60 ROUTE DES ACACIAS
GENEVA 73
SWITZERLAND
CH-12 11

(c)

Citizenship:

Pictet Asset Management SA: United Kingdom

	(d)		Title of Class Securities: COMMON STOCK
	(e)		CUSIP Number: 803893106

Item 3. If this statement is filed pursuant to Rule 13d-1 (b), or 13d-2 (b) or (c), check whether the person is A

     Not applicable.

Item 4. Ownership

     The reporting persons disclaim beneficial ownership of the shares reported, which are owned of record and beneficially by three non-U.S. investment funds, both are managed by PAM SA.

(a)

Amount Beneficially Owned:

Pictet Asset Management SA: 2,700,000

(b)

Percent of Class:

Pictet Asset Management SA: 5.23%

(c)

Number of shares as to which such person has:

Pictet Asset Management SA:

	(i)		sole power to vote or to direct the vote: 2,700,000
	(ii)		shared power to vote or to direct the vote: None

 

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	(iii)		sole power to dispose or to direct the disposition of: 2,700,000
	(iv)		shared power to dispose or to direct the disposition of: None

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

     Not applicable.

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

     See answer to Item 2 (a)

Item 8. Identification and Classification of Members of the Group

     Not applicable.

Item 9. Notice of Dissolution of the 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.

 

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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.

	Date :11 th June 2009
	/s/ Catherine Halpin
	Catherine Halpin
	Compliance Manager

AGREEMENT OF REPORTING PERSONS

     The undersigned herby agree that the foregoing Schedule 13G is filed on behalf of the undersigned.

Pictet Asset Management SA
By:	/s/ Catherine Halpin
	Catherine Halpin, Compliance Manager