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

FORM 5
ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check box if no longer subject to Section 16.
    Form 4 or Form 5 obligations may continue.

[ ] Form 3 Holdings Reported

[ ] Form 4 Transactions Reported

1. Name and Address of Reporting Person(s)
   Winzer, C. Eric
   1600 Faraday Avenue


   Carlsbad, CA  92008
2. Issuer Name and Ticker or Trading Symbol
   Invitrogen Corporation (IVGN)
3. I.R.S. Identification Number of Reporting Person, if an entity (Voluntary)

4. Statement for Month/Year
   12/02
5. If Amendment, Date of Original (Month/Year)
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
   [ ] Director                   [ ] 10% Owner
   [X] Officer (give title below) [ ] Other (specify below)
   CFO
7. 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
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1)Title of Security                           2)Trans-    3.Trans- 4.Securities Acquired(A)      5)Amount of    6)  7)Nature of
                                              action      action   or Disposed of (D)            Securities         Indirect
                                              Date        Code                   A               Beneficially   D   Beneficial
                                              (Month/                            or              Owned at       or  Ownership
                                              Day/Year)   Code     Amount        D  Price        End of Year    I
------------------------------------------------------------------------------------------------------------------------------------
                                                                                           

Common Stock                                  10/31/01    J        13            A  $52.1390                    D  Direct
Common Stock                                  01/31/02    J        11            A  $45.5345                    D  Direct
Common Stock                                  04/30/02    J        22            A  $29.4780                    D  Direct
Common Stock                                  07/31/02    J        95            A  $28.7640                    D  Direct
Common Stock                                  10/31/02    J        38            A  $23.6980     1,980          D  Direct


Table II (PART 1)  Derivative Securitites Acquired, Disposed of, or Beneficially Owned  (Columns 1 through 6)
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1)Title of Derivative          2)Conversion    3)Trans-       4)Trans-  5)Number of Derivative            6)Date Exercisable and
Security                       or Exercise     action         action    Securities Acquired (A)           Expiration Date
                               Price of        Date           Code      or Disposed of (D)
                               Derivative
                               Security                       Code      A                D                Exercisable  Expiration
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                  
Incentive Stock Option (right  $31.8400        04/25/02       A         12,560                            04/25/03     04/25/12
to buy)
Incentive Stock Option (right  $36.7188                                                                   02/02/02     02/02/09
to buy)
Non-Qualified Stock Option     $31.8400        04/25/02       A         137,440                           04/25/03     04/25/12
(right to buy)
Non-Qualified Stock Option     $34.4100                                                                   10/14/00     10/14/07
(right to buy)
Non-Qualified Stock Option     $36.7188                                                                   02/02/02     02/02/09
(right to buy)
Non-Qualified Stock Option     $56.8750                                                                   10/11/05     10/11/10
(right to buy)


Table II (PART 2)  Derivative Securitites Acquired, Disposed of, or Beneficially Owned  (Columns 1,3 and 7 through 11)
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1)Title of Derivative          3)Trans-  7)Title and Amount                           8)Price     9)Number of   10) 11)Nature of
Security                       action    of Underlying                                of Deri-    Derivative        Indirect
                               Date      Securities                                   vative      Securities    D   Beneficial
                                                                        Amount or     Security    Beneficially  or  Ownership
                                                                        Number of                 Owned at      I
                  -                      Title                          Shares                    End of Year
------------------------------------------------------------------------------------------------------------------------------------
                                                                                               

Incentive Stock Option (right  04/25/02  Common Stock                   12,560                    12,560        D   Direct
to buy)
Incentive Stock Option (right            Common Stock                   6,930                     6,930         D   Direct
to buy)
Non-Qualified Stock Option     04/25/02  Common Stock                   137,440                   137,440       D   Direct
(right to buy)
Non-Qualified Stock Option               Common Stock                   249                       249           D   Direct
(right to buy)
Non-Qualified Stock Option               Common Stock                   2,070                     2,070         D   Direct
(right to buy)
Non-Qualified Stock Option               Common Stock                   50,000                    50,000        D   Direct
(right to buy)


Explanation of Responses:




SIGNATURE OF REPORTING PERSON
/S/ By: Cheri L. Manis
    For: C. Eric Winzer
DATE 02/05/03