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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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 * FAULKNER DARYL   2. Issuer Name and Ticker or Trading Symbol INVITROGEN CORP [IVGN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Sr. VP (Last) (First) (Middle) 1600 FARADAY AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 08/23/2005 (Street) CARLSBAD, CA 92008 4. If Amendment, Date 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 (City) (State) (Zip) 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) Code V Amount (A) or (D) Price Common Stock 08/23/2005   M   4,200 D $ 81.98 70,260 D   Common Stock 08/23/2005   M   7,700 D $ 81.97 62,560 D   Common Stock 08/23/2005   M   6,700 D $ 81.95 55,860 D   Common Stock 08/23/2005   M   1,000 D $ 81.93 54,860 D   Common Stock 08/23/2005   M   10,200 D $ 81.92 44,660 D   Common Stock 08/23/2005   M   5,476 D $ 81.91 39,184 D   Common Stock 08/23/2005   M   400 D $ 81.89 38,784 D   Common Stock 08/23/2005   M   9,300 D $ 81.88 29,484 D   Common Stock 08/23/2005   M   5,000 D $ 81.86 24,484 D   Common Stock 08/23/2005   M   2,500 D $ 81.85 21,984 D   Common Stock 08/23/2005   M   4,700 D $ 81.83 17,284 D   Common Stock 08/23/2005   M   1,500 D $ 81.82 15,784 D   Common Stock 08/23/2005   M   4,000 D $ 81.8 11,784 D   Common Stock 08/23/2005   M   2,500 D $ 81.78 9,284 D

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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 Underlying Securities (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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Non-Qualified Stock Option (right to buy)	$ 31.84	08/23/2005		M			4,275	(1)	04/25/2012	Common Stock	4,275	$ 82.5499	12,875	D
Non-Qualified Stock Option (right to buy)	$ 31.84	08/23/2005		M			3,800	(1)	04/25/2012	Common Stock	3,800	$ 82.08	9,075	D
Non-Qualified Stock Option (right to buy)	$ 31.84	08/23/2005		M			1,285	(1)	04/25/2012	Common Stock	1,285	$ 82.05	7,790	D
Non-Qualified Stock Option (right to buy)	$ 34.51	08/23/2005		M			3,125	(2)	09/06/2012	Common Stock	3,125	$ 82.5499	15,625	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			33,440	(3)	10/11/2010	Common Stock	33,440	$ 82	66,560	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			1,800	(3)	10/11/2010	Common Stock	1,800	$ 81.99	64,760	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			4,200	(3)	10/11/2010	Common Stock	4,200	$ 81.98	60,560	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			7,700	(3)	10/11/2010	Common Stock	7,700	$ 81.97	52,860	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			6,700	(3)	10/11/2010	Common Stock	6,700	$ 81.95	46,160	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			1,000	(3)	10/11/2010	Common Stock	1,000	$ 81.93	45,160	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			10,200	10/11/2005(3)	10/11/2010	Common Stock	10,200	$ 81.92	34,960	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			5,476	10/11/2005(3)	10/11/2010	Common Stock	5,476	$ 81.91	29,484	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			400	10/11/2005(3)	10/11/2010	Common Stock	400	$ 81.89	29,084	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			9,300	10/11/2005(3)	10/11/2010	Common Stock	9,300	$ 81.88	19,784	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			5,000	10/11/2005(3)	10/11/2010	Common Stock	5,000	$ 81.86	14,784	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			2,500	10/11/2005(3)	10/11/2010	Common Stock	2,500	$ 81.85	12,284	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			4,700	10/11/2005(3)	10/11/2010	Common Stock	4,700	$ 81.82	7,584	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			1,500	10/11/2005(3)	10/11/2010	Common Stock	1,500	$ 81.82	6,084	D
Non-Qualified Stock Option (right to buy)	$ 56.875	08/23/2005		M			2,750	10/11/2005(3)	10/11/2010	Common Stock	2,750	$ 81.8	3,334	D
Non-Qualified Stock Option (right to buy)	$ 61.05	08/23/2005		M			8,215	(4)	10/15/2013	Common Stock	8,215	$ 82.05	40,147	D
Non-Qualified Stock Option (right to buy)	$ 61.05	08/23/2005		M			3,500	(4)	10/15/2013	Common Stock	3,500	$ 82.02	36,647	D
Non-Qualified Stock Option (right to buy)	$ 61.05	08/23/2005		M			10,160	(4)	10/15/2013	Common Stock	10,160	$ 82	26,487	D
Non-Qualified Stock Option (right to buy)	$ 65.38	08/23/2005		M			1,250	(5)	05/14/2014	Common Stock	1,250	$ 81.8	12,221	D
Non-Qualified Stock Option (right to buy)	$ 65.38	08/23/2005		M			2,500	05/14/2005(5)	05/14/2014	Common Stock	2,500	$ 81.78	9,721	D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
FAULKNER DARYL 1600 FARADAY AVENUE CARLSBAD, CA 92008			Sr. VP

Signatures

By: John A. Cottingham For: Daryl J. Faulkner		08/25/2005
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Option vests over a 4-year period, 25% vesting on April 25, 2003, and 75% vesting quarterly thereafter through April 25, 2006, contingent upon continued service to Invitrogen.
(2)	Option vests over a 4-year period, 25% vesting on September 6, 2003, and 75% vesting quarterly thereafter through September 6, 2006, contingent upon continued service to Invitrogen.
(3)	Option vesting is over a 5-year period, 40% vesting on October 11, 2002, and 60% vesting monthly thereafter through October 11, 2005, contingent upon continued service to Invitrogen.
(4)	Option vests over a 4-year period, 25% vesting on October 15, 2004, and 75% vesting quarterly thereafter through October 15, 2007, contingent upon continued service to Invitrogen.
(5)	Option vesting is over a 4-year period, vesting 25% on each anniversary of the May 14, 2004 grant date, contingent upon continued service to Invitrogen.

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