Edgar Filing: SUN MICROSYSTEMS, INC.

Ownership Submission

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

Â Fowler John F

2. Date of Event Requiring Statement (Month/Day/Year)
09/05/2006

3. Issuer Name and Ticker or Trading Symbol
SUN MICROSYSTEMS, INC. [SUNW]

(Last)

(First)

(Middle)

4150 NETWORK CIRCLE

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

_____ Director	_____ 10% Owner
__X__ Officer (give title below)	_____ Other (specify below)
EVP, Systems Group

5. If Amendment, Date Original Filed(Month/Day/Year)

(Street)

SANTA CLARA,Â CAÂ 95054

6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

(City)

(State)

(Zip)

Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	137,678 ⁽¹⁾	D	Â
Common Stock	9,834	I	Shares held by wife.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Employee Stock Option (Right to Buy) ⁽²⁾	11/11/1999⁽³⁾	11/11/2006	Common Stock	24,000	$ 7.8672	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	04/20/2000⁽³⁾	04/20/2007	Common Stock	4,000	$ 12.5313	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	08/11/2000⁽³⁾	08/11/2007	Common Stock	8,000	$ 17	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	11/10/2000⁽³⁾	11/10/2007	Common Stock	20,000	$ 28.0782	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	04/12/2001⁽³⁾	04/12/2008	Common Stock	10,000	$ 40	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	04/18/2002⁽³⁾	04/18/2009	Common Stock	8,000	$ 18.58	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	09/27/2002⁽³⁾	09/27/2009	Common Stock	10,000	$ 7.91	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	11/07/2002⁽³⁾	11/07/2009	Common Stock	25,000	$ 12.59	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	11/07/2002⁽³⁾	11/07/2009	Common Stock	25,000	$ 12.59	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	03/19/2003⁽³⁾	03/19/2010	Common Stock	200	$ 9.14	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	03/19/2003⁽³⁾	03/19/2010	Common Stock	5,000	$ 9.14	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	07/25/2003⁽⁴⁾	07/25/2010	Common Stock	8,000	$ 3.7	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	07/25/2003⁽⁵⁾	07/25/2010	Common Stock	26,883	$ 3.7	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	05/21/2004⁽⁶⁾	05/21/2011	Common Stock	30,000	$ 4.2	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	11/13/2004⁽⁷⁾	11/13/2011	Common Stock	25,000	$ 4.208	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	07/29/2005⁽⁸⁾	07/29/2012	Common Stock	300,000	$ 3.79	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	07/28/2006⁽⁹⁾	07/28/2013	Common Stock	300,000	$ 3.85	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	07/27/2007⁽¹⁰⁾	07/27/2014	Common Stock	500,000	$ 4.26	D	Â
Employee Stock Option (Right to Buy) ⁽²⁾	11/11/1999⁽³⁾	11/11/2006	Common Stock	80,000	$ 7.8672	I	Options held by wife.
Employee Stock Option (Right to Buy) ⁽²⁾	04/18/2002⁽³⁾	04/18/2009	Common Stock	1,500	$ 18.58	I	Options held by wife.
Employee Stock Option (Right to Buy) ⁽²⁾	03/19/2003⁽³⁾	03/19/2010	Common Stock	200	$ 9.14	I	Options held by wife.
Employee Stock Option (Right to Buy) ⁽²⁾	12/17/2003⁽¹¹⁾	07/25/2010	Common Stock	3,000	$ 3.7	I	Options held by wife.
Employee Stock Option (Right to Buy) ⁽²⁾	02/09/2006⁽¹²⁾	09/17/2012	Common Stock	3,000	$ 3.94	I	Options held by wife.

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Fowler John F 4150 NETWORK CIRCLE SANTA CLARA,Â CAÂ 95054	Â	Â	Â EVP, Systems Group	Â

Signatures

/s/ John F. Fowler		09/15/2006
^**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	This includes 85,750 shares of unvested restricted stock.
(2)	This option was granted under the Sun Microsystems, Inc. 1990 Long-Term Equity Incentive Plan.
(3)	Immediately.
(4)	This option vests and becomes exercisable in five equal annual installments of 1,600 shares beginning on July 25, 2003.
(5)	This option vests and becomes exercisable in five equal annual installments of approximately 5,377 shares beginning on July 25, 2003.
(6)	This option vests and becomes exercisable in five equal annual installments of 6,000 shares beginning on May 21, 2004.
(7)	This option vests and becomes exercisable in five equal annual installments of 5,000 shares beginning on November 13, 2004.
(8)	This option vests and becomes exercisable in five equal annual installments of 60,000 shares beginning on July 29, 2005.
(9)	This option vests and becomes exercisable in five equal annual installments of 60,000 shares beginning on July 28, 2006.
(10)	This option vests and becomes exercisable in five equal annual installments of 100,000 shares beginning on July 27, 2007.
(11)	This option vests and becomes exercisable in five equal annual installments of 600 shares beginning on December 17, 2003.
(12)	This option vests and becomes exercisable in five equal annual installments of 600 shares beginning on February 9, 2006.

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