SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Taillefer Alexandre

(Last)

(First)

(Middle)

297, RUE ST-PAUL OUEST

BUREAU 007

(Street)

MONTREAL

H2Y 2A5

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
JAMDAT MOBILE INC [ JMDT ]

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Pres., JAMDAT Mobile (Can) ULC

3. Date of Earliest Transaction (Month/Day/Year)
02/28/2005

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

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	02/28/2005		M		122,782⁽¹⁾	A	$0.33	122,782	D
Common Stock	05/10/2005		S		15,000⁽²⁾	D	$24.88	107,782	D
Common Stock	05/18/2005		S		10,100	D	$27.2111	97,682	D
Common Stock	05/18/2005		S		9,900	A	$28.5409	87,782	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Employee Stock Option (right to buy)	$0.33	02/28/2005		M			122,782⁽³⁾	⁽⁴⁾	07/13/2013	Common Stock	122,782	⁽⁵⁾	76,426	D

Explanation of Responses:

1. Includes 15,000 shares of common stock previously reported (on May 11, 2005) as having been acquired upon the exercise of an option to buy 15,000 shares on May 10, 2005. The actual date of acquisition of such 15,000 shares was February 28, 2005, when the reporting person exercised an option to buy 122,782 shares.

2. Previously reported (on May 11, 2005), as a May 10, 2005 sale of 15,000 shares acquired on the same date upon the exercise of an option to buy 15,000 shares of common stock. While 15,000 shares were sold by the reporting person on May 10, 2005, such 15,000 shares were actually acquired on February 28, 2005, as described in note 1 above.

3. Includes an option to buy 15,000 shares previously reported (on May 11, 2005) as having been exercised on May 10, 2005. The actual exercise date of such option was February 28, 2005, when the reporting person exercised an option to buy 122,782 shares.

4. 25% of the option to purchase a total of 215,791 shares vested on July 3, 2003, and the remainder of the option vests at a rate of 2.0833% each subsequent month.

5. Not applicable.

	/s/ Craig Gatarz, by power of attorney	05/20/2005
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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