<PAGE> 1
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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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<S> <C> <C> <C> <C> <C> <C>
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| 1. Name and Address of Reporting Person(1) | 2. Issuer Name and Ticker or Trading Symbol |6. Relationship of Reporting Person to|
| Winchester, Robert R. | Martin Marietta Materials, Inc. (MLM) | Issuer (Check all applicable) |
|--------------------------------------------|----------------------------------------------| |
| (Last) (First) (Middle) | 3. IRS Identification | 4. Statement For | ----Director ---10% Owner |
| | Number of Reporting | Month/Year | |
| | Person, if an Entity | | X Officer (give ---Other (Specify|
| | (Voluntary) | 4/1999 | --- title below)|
| 2710 Wycliff Road | | | below |
| | | | Senior Vice President |
|--------------------------------------------| ###-##-#### |--------------------|--------------------------------------|
| (Street) | | 5. If Amendment, | |
| | | Date of Original|7. Individual or Joint/Group Filing |
| Raleigh NC 27607 | | (Month/Year) | (Check applicable line) |
|--------------------------------------------|----------------------------------------------| X Form Filed by One |
| (City) (State) (Zip) | | ---- Reporting Person |
| | | Form Filed by More Than |
| | | ----- One Reporting Person |
|----------------------------------------------------------------------------------------------------------------------------------|
| TABLE 1 -- NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED |
|----------------------------------------------------------------------------------------------------------------------------------|
|1. Title of Security |2. Transaction |3. Transac- |4. Securities Acquired (A) | 5. Amount of Se- |6. Owner- |7. Nature |
| (Instr. 3) | Date | tion Code | or Disposed of (D) | curities Benefi-| ship | of In- |
| | (Month/Day | (Instr. 8) | | cially Owned at | Form: | direct |
| | Year) | | | End of Month | Direct | Benefi-|
| | | | (Instr. 3, 4 and 5) | (Instr. 3 and 4)| (D) or | cial |
| | |--------------|---------------------------| | Indirect | Owner- |
| | |Code V | Amount | A) or | Price| | (I) | ship |
| | | | | D) | | | (Instr. 4)| (Instr.|
| Common Stock | 4/20/1999 | M | 9,000 | A | 22.00| | D | 4) |
|---------------------|-------------------|--------------|------------|-------|------|--------------------|-------------|----------|
| Common Stock | 4/20/1999 | M | 12,000 | A | 20.00| | D | |
|---------------------|-------------------|--------------|------------|-------|------|--------------------|-------------|----------|
| Common Stock | 4/20/1999 | M | 10,000 | A | 24.25| | D | |
|---------------------|-------------------|--------------|------------|-------|------|--------------------|-------------|----------|
| Common Stock | 4/21/1999 | S | 31,000 | D |64.375| 4,383 | D | |
|---------------------|-------------------|--------------|------------|-------|------|--------------------|-------------|----------|
| Common Stock | | | | | | 150 | I | Spouse |
|---------------------|-------------------|--------------|------------|-------|------|--------------------|-------------|----------|
| | | | | | | | | |
|---------------------|-------------------|--------------|------------|-------|------|--------------------|-------------|----------|
| | | | | | | | | |
|---------------------|-------------------|--------------|------------|-------|------|--------------------|-------------|----------|
| | | | | | | | | |
|---------------------|-------------------|--------------|------------|-------|------|--------------------|-------------|----------|
| | | | | | | | | |
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(Print or Type Response)
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<TABLE>
<CAPTION>
FORM 4 (CONTINUED) TABLE II -- DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED
(E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES)
<S> <C> <C> <C> <C> <C> <C> <C>
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|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- |
| | | Year) | | 4, and 5) | Year | | ity |
| | | | | |------------------|---------------------| (Instr. 5)|
| | | | | | Date |Expira- | | Amount or| |
| | | |----------|----------------| Exer- |tion | Title | Number of| |
| | | | Code| V | (A) | (D) | cisable|Date | | Shares | |
|-----------------------|------------|----------|-----|----|--------|-------|--------|---------|---------|-----------|-------------|
|Employee Stock Option | 22.00 | 4/20/1999| M | | | 9,000|8/2/97 |8/2/2004 |Common | 9,000 | |
|(right to buy) | | | | | | | | |Stock | | |
|-----------------------|------------|----------|-----|----|--------|-------|--------|---------|---------|-----------|-------------|
|Employee Stock Option | 20.00 | 4/20/1999| M | | | 12,000|8/3/98 |8/3/2005 |Common | 12,000 | |
|(right to buy) | | | | | | | | |Stock | | |
|-----------------------|------------|----------|-----|----|--------|-------|--------|---------|---------|-----------|-------------|
|Employee Stock Option | 24.25 | 4/20/1999| M | | | 10,000|7/10/98 |7/10/2006|Common | 10,000 | |
|(right to buy) | | | | | | | | |Stock | | |
|-----------------------|------------|----------|-----|----|--------|-------|--------|---------|---------|-----------|-------------|
| | | | | | | | | | | | |
| | | | | | | | | | | | |
|-----------------------|------------|----------|-----|----|--------|-------|--------|---------|---------|-----------|-------------|
| | | | | | | | | | | | |
| | | | | | | | | | | | |
|-----------------------|------------|----------|-----|----|--------|-------|--------|---------|---------|-----------|-------------|
| | | | | | | | | | | | |
| | | | | | | | | | | | |
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<CAPTION>
<S> <C> <C>
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| 9. Number of | 10. Ownership | 11. Nature of |
| Derivative | Form of | Indirect |
| Securities | Derivative | Beneficial |
| Beneficially | Security: | Ownership |
| Owned at End | Direct (D) | (Instr. 4) |
| of Month | or Indirect (I) | |
| (Instr. 4) | (Instr. 4) | |
| | | |
|---------------------|-------------------------------|----------------------|
| 0 | D | |
|---------------------|-------------------------------|----------------------|
| 0 | D | |
|---------------------|-------------------------------|----------------------|
| 5,000 | D | |
|---------------------|-------------------------------|----------------------|
| | | |
|---------------------|-------------------------------|----------------------|
| | | |
|---------------------|-------------------------------|----------------------|
| | | |
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Explanation of Responses:
(1) Intentional misstatements or omissions of facts constitute Federal Criminal Violations. /s/ Robert R. Winchester 5/4/99
See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). ---------------------------- -------
**Signature of Reporting Person(1) 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.
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