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FORM 4
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                                 U.S. SECURITIES AND EXCHANGE COMMISSION
                                          WASHINGTON, DC 20549

                               STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
/ / Check box if no
    longer subject to         Filed pursuant to Section 16(a) of the Securities
    Section 16. Form 4            Exchange Act of 1934, Section 17(a) of the
    or Form 5 obligations         Public Utility Holding Company Act of 1935
    may continue. See              or Section 30(f) of the Investment Company
    Instruction 1(b).                           Act of 1940

                                                                                                       
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 1. Name and Address of Reporting Person*      2. Issuer Name and Ticker or Trading Symbol   6. Relationship of Reporting Person to
    Sansom        William             B.          Martin Marietta Materials, Inc. (MLM)         Issuer (Check all applicable)
- ---------------------------------------------  ----------------------------------------------    X  Director         10% Owner
  (Last)          (First)          (Middle)    3. IRS or Social Security  4. Statement for      ----              ---
   H. T. Hackney Company, 502 S. Gay Street       Number of Reporting        Month/Year             Officer (give    Other (Specify
- ---------------------------------------------     Person (Voluntary)         10/1999            ----        title ---       below)
                 (Street)                                                 ------------------                below)
   Knoxville        TN               37902          ###-##-####           5. If Amendment,
- ---------------------------------------------                                Date of Original       --------------------------------
  (City)           (State)           (Zip)                                   (Month/Year)
                                                                                             7. Individual or Joint/Group Filing
                                                                          ------------------    (Check applicable line)
                                                                                                  X   Form filed by one
                                                                                                ----  Reporting Person
                                                                                                      Form filed by more than
                                                                                                ----  one Reporting Person
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                         TABLE 1 -- NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED
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 1. Title of Security           2. Trans-   3. Transac-  4. Securities Acquired (A)  5.  Amount of Se-    6. Owner-      7. Nature
  (Instr. 3)                       action      tion         or Disposed of (D)           curities Benefi-    ship           of In-
                                   Date        Code         (Instr. 3, 4 and 5)          cially Owned at     Form:          direct
                                               (Instr. 8)                                End of Month        Direct         Benefi-
                                  (Month/                                                (Instr. 3 and 4)    (D) or         cial
                                   Day/   ---------------------------------------                            Indirect       Owner-
                                   Year)  Code    V      Amount   (A) or    Price                            (I)            ship
                                                                  (D)                                        (Instr. 4)     (Instr.
                                                                                                                            4)

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*If the Form is filed by more than one Reporting Person, see Instruction 4(b)(v).
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.                   (Over)

                                                                               (Print or Type Response)                       (8/96)

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FORM 4 (CONTINUED) TABLE II -- DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED (E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES) - ------------------------------------------------------------------------------------------------------------------------------------ 1. Title of Derivative 2. Conver- 3. Trans- 4. Trans- 5. Number of 6. Date Exer- 7. Title and Amount 8. Price Security sion or action action Derivative cisable and of Underlying of (Instr. 3) Exercise Date Code Securities Expiration Securities Deriv- Price of (Month/ (Instr. Acquired (A) Date (Instr. 3 and 4) ative Deriv- Day/ 8) or Disposed (Month/Day/ Secur- ative Year) of (D) Year) ity Security (Instr. 3, (Instr. 5) 4, and 5) ----------------------------------- Date Expira- Amount or ---------------------------- Exer- tion Title Number of Code V (A) (D) cisable Date Shares - ------------------------------------------------------------------------------------------------------------------------------------ Stock Units (1) 1-for-1 10/1/1999 A V 51 (1) (1) Common 51 39.9375 Stock - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------------------------------------------------ 1. Title of Derivative 9. Number of 10. Ownership 11. Nature of Security Derivative Form of Indirect (Instr. 3) Securities Derivative Beneficial Beneficially Security: Ownership Owned at End Direct (D) (Instr. 4) of Month or Indirect (I) (Instr. 4) (Instr. 4) - ------------------------------------------------------------------------------------------------------- Stock Units (1) 2822.57 D - ------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------- Explanation of Responses: 1. The stock units were accrued under the Martin Marietta Materials, Inc. Common Stock Purchase Plan for Directors (the "Plan") and are to be settled in cash and/or stock on (i) the date the reporting person ceases to be a Non-Employee Director or (ii) the date that is one month and one year following the date the reporting person ceases to be a Non-Employee Director, in accordance with the reporting person's election under the Plan. **Intentional misstatements or omissions of facts constitute Federal Criminal Violations. /s/ William B. Sansom 11/4/99 See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). ------------------------------- ------- **Signature of Reporting Person Date Note. File three copies of this form, one of which must be manually signed. Page 2 If space provided is insufficient, see Instruction 6 for procedure.