1. Name and Address of Reporting Person
   Diefenderfer III, William M.
   11600 Sallie Mae Drive
   Reston, VA 20193
2. Issuer Name and Ticker or Trading Symbol
   SLM Corporation (SLM)
3. IRS or Social Security Number of Reporting Person (Voluntary)
4. Statement for Month/Year
   11/2002
5. If Amendment, Date of Original (Month/Day/Year)
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
   (X) Director                   ( ) 10% Owner
   ( ) Officer (give title below) ( ) Other (specify below)
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
+---------------------------------+----------+-------------+-----------------------------+----------------+-----------+------------+ |1. Title of Security |2. Trans- |3. Trans- |4. Securities Acquired (A) |5. Amount of |6. Owner- |7. Nature | | | action | action | or Disposed of (D) | Securities | ship | of In- | | | Date | Code | | Beneficially | Form: | direct | | | | | | Owned at | Direct | Bene- | | | (Month/ | | | End of | (D) or | ficial | | | Day/ +-------+-----+-----------+------+----------+ Month | Indirect| Owner- | | | Year) |Code |V |Amount |A/D |Price | | (I) | ship | +---------------------------------+----------+-------+-----+-----------+------+----------+----------------+-----------+------------+ Common Stock 11/14/2002 M 790 A $43.3125 D Common Stock 11/14/2002 S -223 D $104.0000 D Common Stock 11/14/2002 F -320 D $107.0000 9776 D
TABLE II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned
+-------------+--------+----------+---------+-----------+---------------------+----------------+----------+--------+-------+-------+ |1. |2. |3. |4. |5. |6. |7. |8. |9. |10. |11. | | | | | | | | | |Number |Owner- | | | | | | | | | | |of |ship | | | | | | | | | | |Deriv- |Form of| | | | | | | | |Title and Amount| |ative |Deriv- | | | | | | | | |of Underlying | |Secur- |ative |Nature | | |Conver- | | |Number of | |Securities | |ities |Secur- |of | | |sion or | | |Derivative |Date Exercisable +-------+--------+ |Benefi- |ity: |In- | | |Exercise| | |Securities |and Expiration Date | |Amount | |cially |Direct |direct | | |Price of|Transac- |Transac- |Acquired(A)|(Month/Day/Year) | |or | |Owned |(D) or |Bene- | |Title of |Deriv- |tion Date |tion Code|Disposed(D)+----------+----------+ |Number |Price of |at End |In- |ficial | |Derivative |ative |(Month/ +------+--+-----+-----+Date Exer-|Expira- | |of |Derivative|of |direct |Owner- | |Security |Security|Day/Year) |Code |V |(A) |(D) |cisable |tion Date |Title |Shares |Security |Month |(I) |ship | +-------------+--------+----------+------+--+-----+-----+----------+----------+-------+--------+----------+--------+-------+-------+ Stock Option $43.3125 11/14/2002 M 790 05/20/2009 Common 790 $43.3125 27210 D (Right to buy) Stock Stock Option $105 11/15/2002 A 320 11/15/2003 05/20/2009 Common 320 $105.0000 320 D (Right to buy) Stock Explanation of Responses: The options become exercisible in increments of one-third; One-third became exercisible one year from the date of grant, one-third upon the Company's common stock having a closing price on the New York Stock Exchange of $57.15 and $71.43, respectively, for five trading days, they also become exercisible on the eighth anniversary of the grant (May 20, 2007) subject to terms regarding the reporting person's continued service with the Company.
SIGNATURE OF REPORTING PERSON /s/Mary F. Eure (POA) DATE 11/15/2002