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

                                  SCHEDULE 13G

                                (Amendment No. 2)

                    Under the Securities Exchange Act of 1934

                         Martin Marietta Materials, Inc.
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    573284106
                           ---------------------------
                                 (CUSIP Number)

                                December 31, 2000
- --------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

|X| Rule 13d-1(b)

|_| Rule 13d-1(c)

|_| Rule 13d-1(d)

The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).

CUSIP No. 573284-10-6 13G Page 2 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Trustees of General Electric Pension Trust I.R.S. # 14-6015763 - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION State of New York - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER None -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 991,035 OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON None WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 991,035 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 991,035 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 2.12% (3.67% if aggregated with the shares beneficially owned by the other Reporting Persons (as defined in the Introductory Note)) - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* EP - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

CUSIP No. 573284-10-6 13G Page 3 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON GE Asset Management Incorporated (see Introductory Note), as Investment Manager of GEPT and as Investment Adviser to certain other entities and accounts(as defined below) I.R.S. #06-1238874 - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION State of Delaware - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 724,911 -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY 991,035 OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 724,911 WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 991,035 - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,715,946 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.67% (3.67% if aggregated with the shares beneficially owned by the other Reporting Persons (as defined in the Introductory Note)) - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IA, CO - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

CUSIP No. 573284-10-6 13G Page 4 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON General Electric Company I.R.S. #14-0689340 - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION State of New York - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 0 -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY Disclaimed (see 9 below) OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER Disclaimed (see 9 below) - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON Beneficial ownership of all shares disclaimed by General Electric Company - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |X| Disclaimed (see 9 above) - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) Not applicable (see 9 above) - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* CO - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

CUSIP No. 573284-10-6 13G Page 5 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON General Electric Capital Services, Inc. (formerly, General Electric Financial Services, Inc.) I.R.S. #06-1109503 - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION State of Delaware - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER None -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY Disclaimed (see 9 below) OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON None WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER Disclaimed (see 9 below) - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON Beneficial ownership of all shares disclaimed by General Electric Capital Services, Inc. - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |X| Disclaimed (see 9 above) - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) Not applicable (see 9 above) - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* CO - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

CUSIP No. 573284-10-6 13G Page 6 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON General Electric Mortgage Insurance Corporation I.R.S. # - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION State of North Carolina - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 16,440 -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY None OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 16,440 WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER None - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 16,440 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.03% (3.67% if aggregated with the shares beneficially owned by the other Reporting Persons) - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* CO, IC - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

CUSIP No. 573284-10-6 13G Page 7 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Coregis Insurance Company I.R.S. # - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION State of Indiana - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 8,720 -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY None OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 8,720 WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER None - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 8,720 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.01% (3.67% if aggregated with the shares beneficially owned by the other Reporting Persons) - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* IC, CO - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

CUSIP No. 573284-10-6 13G Page 8 of 21 - -------------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Employers Reinsurance Corporation I.R.S. # - -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) |_| (b) |X| - -------------------------------------------------------------------------------- 3 SEC USE ONLY - -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION State of Missouri - -------------------------------------------------------------------------------- 5 SOLE VOTING POWER 0 -------------------------------------------------------------- NUMBER OF 6 SHARED VOTING POWER SHARES BENEFICIALLY None OWNED BY -------------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING PERSON 0 WITH -------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER None - -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 - -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* |_| - -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0 - -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* CO, IC - -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT

INTRODUCTORY NOTE: This Amendment No. 2 amends the Statement on Schedule 13G filed on behalf of General Electric Company, a New York corporation ("GE"), General Electric Investment Corporation, a Delaware corporation and a wholly owned subsidiary of GE ("GEIC"), GE Asset Management Incorporated (formerly, GE Investment Management Incorporated), a Delaware corporation and a wholly owned subsidiary of GE ("GEAM") and the Trustees of General Electric Pension Trust, a New York common law trust ("GEPT") on February 14, 2000, and as amended on May 9, 2000 (as amended, the "Schedule 13G"). This Amendment No. 2 is filed on behalf of GE, GEAM, GEPT, General Electric Capital Services, Inc., a Delaware corporation and a wholly owned subsidiary of GE ("GECS"), General Electric Mortgage Insurance Corporation, a North Carolina corporation and an indirect wholly owned subsidiary of GECS ("GEMI"), Employers Reinsurance Corporation, a Missouri corporation and an indirect wholly owned subsidiary of GECS ("ERIC") and Coregis Insurance Company, an Indiana corporation and an indirect wholly owned subsidiary of GECS ("Coregis") (collectively, the "Reporting Persons"). GEAM is a registered investment adviser and acts as the Investment Manager of GEPT, and as an Investment Adviser to certain other entities and accounts. GEAM may be deemed to be the beneficial owner of 991,035 shares of Common Stock of Martin Marietta Materials, Inc. (the "Issuer") owned by GEPT and of 724,911 shares of Common Stock of the Issuer owned by such other entities and accounts. GEAM, GEPT, GECS, GEMI, ERIC and Coregis each expressly disclaim that they are members of a "group". GECS disclaims beneficial ownership of all shares held by GEMI, ERIC and Coregis. GE disclaims beneficial ownership of all shares and expressly disclaims that it is a member of a "group". Item 4 Ownership GEPT GEAM GE (a) Amount beneficially owned 991,035 1,715,946 0 (b) Percent of class 2.12% 3.67% disclaimed (c) No. of shares to which person has (i) sole power to vote or direct the vote None 724,911 None (ii) shared power to vote or direct 991,035 991,035 disclaimed (iii) sole power to dispose or to direct disposition None 724,911 None (iv) shared power to dispose or to direct disposition 991,035 991,035 disclaimed Page 9 of 21

Item 4 Ownership ERIC GEMI Coregis GECS GE (a) Amount beneficially owned 0 16,440 8,720 0 0 (b) Percent of class 0 0.03% 0.01 disclaimed disclaimed (c) No. of shares to which person has (i) sole power to vote or direct the vote 0 16,440 8,720 None None (ii) shared power to vote or direct None None None disclaimed disclaimed (iii) sole power to dispose or to direct disposition 0 16,440 8,720 None None (iv) shared power to dispose or to direct disposition None None None disclaimed disclaimed Item 5 Ownership of Five Percent or Less of a Class If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following: |X| Item 10 Certification By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. Page 10 of 21

SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: February 14, 2001 GENERAL ELECTRIC PENSION TRUST By: GE Asset Management Incorporated, its Investment Manager By: /s/ Michael M. Pastore ---------------------------------------- Name: Michael M. Pastore Title: Vice President Page 11 of 21

SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: February 14, 2001 GE ASSET MANAGEMENT INCORPORATED By: /s/ Michael M. Pastore ---------------------------------------- Name: Michael M. Pastore Title: Vice President Page 12 of 21

SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: February 14, 2001 GENERAL ELECTRIC COMPANY By: /s/ John H. Myers ---------------------------------------- Name: John H. Myers Title: Vice President Page 13 of 21

SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: February 14, 2001 GENERAL ELECTRIC CAPITAL SERVICES, INC. By: /s/ Jonathan K. Sprole ---------------------------------------- Name: Jonathan K. Sprole Title: Attorney-in-Fact Page 14 of 21

[POWER OF ATTORNEY The undersigned, General Electric Capital Services, Inc., a Delaware corporation (hereinafter referred to as the "Corporation") does hereby make, constitute and appoint the persons listed below as the Corporation's true and lawful agent and attorney-in-fact (hereinafter referred to as the "Attorney") to act either together or alone in the name and on behalf of the Corporation for and with respect to the matters hereinafter described. Name of Attorney: Michael A. Gaudino Robert O. Oreilly, Sr. Murry K. Stegelmann James Ungari Preston Abbott Leon E. Roday J. Gordon Smith Michael E. Pralle Iain MacKay Jonathan K. Sprole Barbara J. Gould Robert L. Lewis Wendy E. Ormond Mark F. Mylon Each attorney shall have the power and authority to do the following: To execute and deliver any Schedule 13D, Schedule 13G or Forms 3, 4 and 5 or any amendments thereto required to be filed with the Securities and Exchange Commission under the Securities Exchange Act of 1934 on behalf of the Corporation with regard to any securities owned by the Corporation, General Electric Capital Corporation or any of their subsidiaries. And, in connection with the foregoing, to execute and deliver all documents, acknowledgements, consents and other agreements and to take such further action as may be necessary or convenient for the Corporation in order to more effectively carry out the intent and purpose of the foregoing. Agreements, commitments, documents, instruments, and other writing executed by the Attorney in accordance with the terms hereof shall be binding upon the Corporation without attestation and without affixation of the seal of the Corporation. The Power of Attorney conferred hereby shall not be delegable by any Attorney. The Attorney shall serve without compensation for acting in the capacity of agent and attorney-in-fact hereunder. Unless revoked by the Corporation, this Power of Attorney shall be governed under the laws of the State of New York and the authority of the Attorney hereunder shall terminate on March 31, 2002. IN WITNESS WHEREOF, the Corporation has caused this Power of Attorney to be executed, attested and its corporate seal to be affixed pursuant to authority granted by the Corporation's board of directors, as of the 22nd day of February, 2000. General Electric Capital Services, Inc. (Corporate Seal) By: /s/ Nancy E. Barton ---------------------------------------- Nancy E. Barton, Senior Vice President Attest: /s/ Brian T. MacAnaney - ----------------------------------------- Brian T. McAnaney, Assistant Secretary Page 15 of 21

SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: February 14, 2001 EMPLOYERS REINSURANCE CORPORATION By: /s/ Thomas Powers ---------------------------------------- Name: Thomas Powers Title: Vice President Page 16 of 21

SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: February 14, 2001 GENERAL ELECTRIC MORTGAGE INSURANCE CORPORATION By: /s/ Jerome T. Upton ---------------------------------------- Name: Jerome T. Upton Title: Vice President Page 17 of 21

SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: February 14, 2001 COREGIS INSURANCE COMPANY By: /s/ Terry Isenberg ---------------------------------------- Name: Terry Isenberg Title: Vice President Page 18 of 21

Schedule I JOINT FILING AGREEMENT This will confirm the agreement by and between all the undersigned that the Schedule 13G on or about this date and any amendments thereto with respect to the beneficial ownership by the undersigned of shares of the Common Stock of Martin Marietta Materials, Inc. is being filed on behalf of each of the undersigned. Dated: February 14, 2001 GENERAL ELECTRIC PENSION TRUST By: GE Asset Management Incorporated, its Investment Manager By: /s/ Michael M. Pastore -------------------------------------- Name: Michael M. Pastore Title: Vice President GE ASSET MANAGEMENT INCORPORATED By: /s/ Michael M. Pastore -------------------------------------- Name: Michael M. Pastore Title: Vice President GENERAL ELECTRIC COMPANY By: /s/ John H. Myers -------------------------------------- Name: John H. Myers Title: Vice President GENERAL ELECTRIC CAPITAL SERVICES, INC. By: /s/ Jonathan K. Sprole -------------------------------------- Name: Jonathan K. Sprole Title: Attorney-in-Fact Page 19 of 21

EMPLOYERS REINSURANCE CORPORATION By: /s/ Thomas Powers -------------------------------------- Name: Thomas Powers Title: Vice President GENERAL ELECTRIC MORTGAGE INSURANCE CORPORATION By: /s/ Jerome T. Upton -------------------------------------- Name: Jerome T. Upton Title: Vice President COREGIS INSURANCE COMPANY By: /s/ Terry Isenberg -------------------------------------- Name: Terry Isenberg Title: Senior Vice President Page 20 of 21

Schedule II TRUSTEES OF GENERAL ELECTRIC PENSION TRUST 3003 Summer Street, P.O. Box 7900 Stamford, Connecticut 06905 The names of the Trustees of General Electric Pension Trust are as follows: Eugene K. Bolton Michael J. Cosgrove Ralph R. Layman Alan M. Lewis Robert A. MacDougall John H. Myers Donald W. Torey John J. Walker Page 21 of 21