STATE STREET BANK & TRUST CO
SC 13D, 1997-10-10
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<PAGE>
 
                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
                             ____________________

                                 SCHEDULE 13D
                   Under the Securities Exchange Act of 1934
                                AMENDMENT NO. 1
                             ____________________

                        MERIDIAN INDUSTRIAL TRUST, INC.
                               (Name of Issuer)

                                 Common Stock
                        (Title of Class of Securities)

                                  589643 10 5
                                (CUSIP Number)

                                Lynne E. McNown
                              225 W. Randolph St.
                                     HQ13A
                               Chicago, IL 60606
                                (312) 750-5322
          (Name, Address and Telephone Number of Person Authorized to
                      Receive Notices and Communications)

                                With a copy to:
                           Andrew J. McDonough, Esq.
                               Winston & Strawn
                              35 W. Wacker Drive
                            Chicago, Illinois 60601
                                (312) 558-6079

                              September 30, 1997
            (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box: [_]
<PAGE>

                                 SCHEDULE 13D
- -----------------------                                  
  CUSIP NO. 589643 10 5                                  
- -----------------------                                  
 
- ------------------------------------------------------------------------------
      NAME OF REPORTING PERSON
 1    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
                          
      Ameritech Pension Trust            
- ------------------------------------------------------------------------------
      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
 2                                                              (a) [_]
                                                                (b) [X]
- ------------------------------------------------------------------------------
      SEC USE ONLY
 3
 
- ------------------------------------------------------------------------------
      SOURCE OF FUNDS*
 4    
      00
- ------------------------------------------------------------------------------
      CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT 
      TO ITEMS 2(d) or 2(e) [_]
 5    
- ------------------------------------------------------------------------------
      CITIZENSHIP OR PLACE OF ORGANIZATION
 6    
      Massachusetts
- ------------------------------------------------------------------------------
                          SOLE VOTING POWER
                     7     
     NUMBER OF            
                          5,784,121 shares of Common Stock
      SHARES       -----------------------------------------------------------
                          SHARED VOTING POWER
   BENEFICIALLY      8    
                          
     OWNED BY             0      
                   -----------------------------------------------------------
       EACH               SOLE DISPOSITIVE POWER
                     9     
    REPORTING             
                          5,784,121 shares of Common
      PERSON       -----------------------------------------------------------
                          SHARED DISPOSITIVE POWER
       WITH          10   
                          0      
- ------------------------------------------------------------------------------
      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
11    
      
      5,784,121 shares of Common Stock
- ------------------------------------------------------------------------------
      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*
12                  
      [_]
- ------------------------------------------------------------------------------
      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
13    
      19.90%       
- ------------------------------------------------------------------------------
      TYPE OF REPORTING PERSON*
14
      EP
- ------------------------------------------------------------------------------

                                       2
<PAGE>
 
Item 1.   Security and Issuer.

          This Statement relates to shares of Series B Convertible Preferred
Stock, $0.001 par value per share (the "Preferred Stock"), and Common Stock,
$0.001 par value per share (the "Common Stock" and, together with the Preferred
Stock, the "Shares"), of Meridian Industrial Trust, Inc., a Maryland corporation
(the "Issuer"). The principal executive offices of the Issuer are located at 455
Market Street, 17th Floor, San Francisco, California 94105.

Item 2.   Identity and Background.

          THE TRUST

          This Schedule 13D Statement is being filed by Ameritech Pension Trust,
by State Street Bank and Trust Company, as Trustee (hereinafter referred to as
the "Trust"). The Trust is the pension trust of Ameritech Corporation, a
Delaware corporation ("Ameritech"). The Trust is comprised of various pension
plans which were formed to provide retirement and other benefits for certain
employees and retirees of Ameritech and their beneficiaries and certain former
participants in the Bell System Management Pension Plan, the Bell System Pension
Plan and the Employees Pension Plan of Ameritech Publishing Venture, Inc.
(collectively, the "Beneficiaries"). The Trust's principal business address
(which also serves as its principal office) is c/o Ameritech Corporation, 225
West Randolph Street, HQ13A, Chicago, Illinois 60606. Investment and voting
decisions with respect to the Trust's assets are currently made by Ameritech's
Asset Management Committee ("AMC"). AMC has delegated certain of its investment
power over the Trust's assets to the Chief Investment Officer of Ameritech.
Pursuant to Instruction C of Schedule 13D of the Securities Exchange Act of
1934, as amended, the names, business or residence address and present principal
occupation of each member of the AMC and the Chief Investment Officer of
Ameritech is as follows:

<TABLE>
<CAPTION>

Members and Officers         Residence or Business
of AMC                       Address                                  Occupation
- --------------------         ---------------------                    ----------
<S>                          <C>                                      <C>
Thomas Cox                   8 Fairfax Lane                           Member AMC
                             Lincolnshire, IL 60069

Rich Pehlke                  30 South Wacker Drive, 38th Floor        V.P. & Treasurer of
                             Chicago, IL 60606                        Ameritech

Lou Rutigliano               100 East Havenwood Lane                  Member AMC
                             Lake Forest, IL 60045

Walt Oliver                  30 South Wacker Drive, 38th Floor        Senior V.P.
                             Chicago, IL 60606                        of Ameritech

Oren Shaffer                 30 South Wacker Drive, 38th Floor        Chief Financial
                             Chicago, IL 60606                        Officer of Ameritech

William Stephens             225 W. Randolph, HQ13A                   Chief Investment Officer
                             Chicago, IL  60606                       of Ameritech
</TABLE>

                                       3
<PAGE>
 
<TABLE>
<S>                 <C>                                <C>
Trish Winter        30 South Wacker, 39th Floor        Counsel & Secretary of
                    Chicago, IL  60606                 AMC (non-voting member)
</TABLE>

          (d) None of the entities or persons identified in this Item 2 has,
during the last five years, been convicted in a criminal proceeding (excluding
traffic violations or similar misdemeanors).

          (e) None of the entities or persons identified in this Item 2 has,
during the last five years, been a party to a civil proceeding of a judicial or
administrative body of competent jurisdiction and as a result of such proceeding
was or is subject to a judgment, decree or final order enjoining future
violations of, or prohibiting or mandating activities subject to, federal or
state securities laws or finding any violation with respect to such laws.

          (f) All of the persons identified in this Item 2 are citizens of the
United States of America.

Item 3.   Source and Amount of Funds or Other Consideration.

          On February 23, 1996, the Trust acquired 1,623,376 shares of Preferred
Stock directly from the Issuer in a private placement pursuant to that certain
Stock Purchase Agreement dated as of December 29, 1995 (the "Preferred Stock
Purchase Agreement") among the Issuer, the Trust and OTR, an Ohio general
partnership acting on behalf of and as nominee for The State Teachers Retirement
Board of Ohio ("OTR"). Such shares of Preferred Stock are immediately
convertible into shares of Common Stock initially on a one-for-one basis. The
source and amount of funds or other consideration used by the Trust to purchase
the Preferred Stock consisted of investment returns on funds originally
contributed to the Trust by the Ameritech companies and/or their predecessors on
behalf of the Beneficiaries.

          On September 30, 1997, the Trust acquired 4,160,745 shares of Common
Stock directly from the Issuer in a purchase transaction pursuant to that
certain Purchase Agreement between the Trust and the Issuer (the "Common Stock
Purchase Agreement"). The source and amount of funds or other consideration used
by the Trust to purchase the Common Stock consisted of the sale of certain real
properties owned indirectly by the Trust.

Item 4.   Purpose of Transaction.

          The Shares have been acquired by the Trust for investment purposes.
Except as described herein, the Trust has no plans or proposals that relate to
or would result in any of the actions specified in clauses (a) through (j) of
Item 4 of Schedule 13D. Pursuant to the Common Stock Purchase Agreement, the
Trust currently intends to acquire 3,104,477 additional shares of Common Stock
upon the sale of the Group B Properties (as defined in the Common Stock Purchase
Agreement).

                                       4
<PAGE>
 
          The Trust currently holds more than 5l% of the outstanding shares of
Preferred Stock of the Issuer and thus has the power to cause the Board of
Directors of the Issuer (the "Board") to appoint a designee of the Trust as a
member of the Board. The Trust presently does not intend to exercise this right.

          The Trust has certain fiduciary responsibilities to the Beneficiaries.
In exercising its fiduciary responsibilities, the Trust may determine it is in
the best interests of the Beneficiaries to dispose of all or a portion of its
investment in the Issuer or to make additional investments in the Issuer. The
Trust expressly reserves the right to dispose of all or any part of its
investment in the Issuer's securities by public or private sale, merger or
otherwise (subject to applicable restrictions of the Securities Act of 1933, as
amended) or to continue to hold the Issuer's securities or to acquire additional
securities of the Issuer at such prices and on such terms as it deems advisable.

Item 5.   Interest in Securities of the Issuer.

          The following information is provided in response to Item 5 of
Schedule 13D and is based on a total of 26,787,319 shares of Common Stock and
2,272,727 shares of Preferred Stock of the Issuer as reported by the Issuer in
its Press Release dated October 1, 1997.

          (a) The Trust beneficially owns of record 5,784,121 Shares (this
includes the 1,623,376 shares of Preferred Stock, which immediately can be
converted into 1,623,376 of Common Stock), constituting approximately 19.90% of
the total issued and outstanding Common Stock on an as converted basis.

          (b) The Trust has the sole power to vote or direct the vote of and the
sole power to dispose or to direct the disposition of 5,784,121 shares of Common
Stock.

          (c) On February 23, 1996, the Trust acquired 1,623,376 shares of
Preferred Stock directly from the Issuer in a private placement pursuant to the
terms of the Preferred Stock Purchase Agreement. The purchase price of each
share of Preferred Stock was $15.40 for a total purchase price of
$24,999,990.40. The transaction was consummated at the offices of Heller,
Ehrman, White & McAuliffe, 333 Bush Street, San Francisco, California 94104.

          On September 30, 1997, the Trust acquired 4,160,745 shares of Common
Stock directly from the Issuer in a purchase transaction pursuant to the terms
of the Common Stock Purchase Agreement. As set forth in the Common Stock
Purchase Agreement, the Trust sold certain properties to the Issuer in exchange
for 4,160,745 shares of Common Stock valued at $19.865 per share. The
transaction was consummated at the offices of Winston & Strawn, 35 West Wacker
Drive, Chicago, Illinois 60601.

          (d)  Not Applicable

          (e)  Not Applicable

                                       5
<PAGE>
 
Item 6.   Contracts, Arrangements, Understandings or Relationships With Respect
to Securities of the Issuer.

          Except as set forth below, there are no contracts, arrangements,
understandings or relationships (legal or otherwise) among the Trust and such
persons and any person with respect to any securities of the Issuer.

          The Trust is governed by the terms of that certain Trust Agreement
(the "Trust Agreement") effective as of January 1, 1996 between Ameritech and
State Street Bank and Trust Company, as Trustee (the "Trustee"). The Trust is a
directed trust. Pursuant to the terms of the Trust Agreement, the AMC, or such
other committee as may from time to time be appointed for that purpose by
Ameritech's Board of Directors or by any applicable subcommittee or duly
authorized delegate thereof, currently has the sole power to vote, direct and
redirect the investment and reinvestment of the Trust's assets, including the
power to direct the Trustee to vote or dispose of any of the assets held by the
Trust, which includes the Shares. AMC has delegated certain of its investment
power over the Trust's assets, including the current voting and dispositive
power with respect to the Shares owned by the Trust, to the Chief Investment
Officer of Ameritech.

Item 7.   Material to be Filed as Exhibits.

          Exhibit A  The Preferred Stock Purchase Agreement - Incorporated by
                     reference to Exhibit No. 10.13 of the Combined Proxy
                     Statement and Prospectus on Form S-4 dated January 11, 1996
                     (File No. 333-00018).

          Exhibit B  Articles Supplementary to the Articles of Incorporation of
                     the Issuer - Incorporated by reference to Exhibit No. 3.2
                     of the Combined Proxy Statement and Prospectus on Form S-4
                     dated January 11, 1996 (File No. 333-00018).

          Exhibit C  Amended and Restated Investor Rights Agreement dated
                     February 23, 1996 among the Issuer, the Trust, OTR, Hunt
                     Realty Acquisitions, L.P., USAA Real Estate Company and
                     Meridian Point Realty Trust '83 - Incorporated by reference
                     to Exhibit No. 10.5 of the Combined Proxy Statement and
                     Prospectus on Form S-4 dated January 11, 1996 
                     (File No. 333-00018).

          Exhibit D  Excepted Holder Agreement dated February 23, 1996 between
                     the Issuer and the Trust - Incorporated by reference to
                     Exhibit No. 10.8 of the Combined Proxy Statement and
                     Prospectus on Form S-4 dated January 11, 1996 
                     (File No. 333-00018).

          Exhibit E  The Trust Agreement - Incorporated by reference to Exhibit
                     E of the Schedule 13D of the Issuer dated February 23, 1996
                     to which this amendment relates.

                                       6
<PAGE>
 
          Exhibit F   The Common Stock Purchase Agreement - Incorporated by
                      reference to Exhibit 10.7 of the Issuer's Form 10-Q filed
                      August 1, 1997 for the quarter ended June 30, 1997.

          Exhibit G   Registration Rights Agreement, dated as of September 30,
                      1997, by and between the Issuer and the Trust.

          Exhibit H   Excepted Holder Agreement, dated as of September 30,
                      1997,by and between the Issuer and the Trust.

                                       7
<PAGE>
 
                                   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.

 
                      AMERITECH PENSION TRUST

                      By:    State Street Bank and Trust Company, as Trustee

                      By:    /s/ Bill Mahoney
                             -------------------------------
                      Name:  Bill Mahoney
                      Title: Senior Vice President
 
 
                      Dated: October 10, 1997
<PAGE>
 
                                 EXHIBIT INDEX
<TABLE> 
<CAPTION> 
Exhibit No.           Description
- ----------            -----------
<S>                   <C>  
Exhibit A             The Preferred Stock Purchase Agreement -Incorporated by
                      reference to Exhibit No. 10.13 of the Combined Proxy
                      Statement and Prospectus on Form S-4 dated January 11,
                      1996 (File No. 333-00018).

Exhibit B             Articles Supplementary to the Articles of Incorporation of
                      the Issuer - Incorporated by reference to Exhibit No. 3.2
                      of the Combined Proxy Statement and Prospectus on Form S-4
                      dated January 11, 1996 (File No. 333-00018).

Exhibit C             Amended and Restated Investor Rights Agreement dated
                      February 23, 1996 among the Issuer, the Trust, OTR, Hunt
                      Realty Acquisitions, L.P., USAA Real Estate Company and
                      Meridian Point Realty Trust '83 - Incorporated by
                      reference to Exhibit No. 10.5 of the Combined Proxy
                      Statement and Prospectus on Form S-4 dated January 11,
                      1996 (File No. 333-00018).

Exhibit D             Excepted Holder Agreement dated February 23, 1996 between
                      the Issuer and the Trust - Incorporated by reference to
                      Exhibit No. 10.8 of the Combined Proxy Statement and
                      Prospectus on Form S-4 dated January 11, 1996 (File No.
                      333-00018).

Exhibit E             The Trust Agreement - Incorporated by reference to Exhibit
                      E of the Schedule 13D of the Issuer dated February 23,
                      1996 to which this amendment relates.

Exhibit F             The Common Stock Purchase Agreement - Incorporated by
                      reference to Exhibit 10.7 of the Issuer's Form 10-Q filed
                      August 1, 1997 for the quarter ended June 30, 1997.

Exhibit G             Registration Rights Agreement, dated as of September 30,
                      1997, by and between the Issuer and the Trust.

Exhibit H             Excepted Holder Agreement, dated as of September 30,
                      1997, by and between the Issuer and the Trust. 

</TABLE>

<PAGE>
 
                                   EXHIBIT G
                                   ---------



                         REGISTRATION RIGHTS AGREEMENT
                         -----------------------------


          This Registration Rights Agreement (the "Agreement") is made and
entered into as of September 30, 1997, by and between Meridian Industrial Trust,
Inc., a Maryland corporation (the "Company"), and State Street Bank and Trust
Company, as Trustee for Ameritech Pension Trust (the "Investor").

                                   RECITALS:

     A.   Pursuant to the terms of that certain Agreement of Purchase and Sale
and Joint Escrow Instructions among the Company, the Investor and Chicago Title
Insurance Company (the "Purchase Agreement"), it is a condition to the
obligations of the Investor thereunder that the Company grant certain
registration rights to the Investor with respect to the shares of common stock,
par value $.001 per share ("Common Stock"), of the Company to be received by the
Investor.

     B.   Pursuant to the terms of the Purchase Agreement it is a condition to
the obligations of the Company thereunder that the Investor agrees to certain
restrictions set forth herein with respect to the disposition of the Common
Stock to be received by the Investor pursuant to the Purchase Agreement.

     NOW, THEREFORE, for valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties hereto agree as follows:


                                  AGREEMENTS:

1.        Definitions.

          As used in this Agreement, the following capitalized terms shall have
the following meanings:

          Affiliate:  A Person that directly, or indirectly through one or more
intermediaries, controls, is controlled by, or is under common control with a
specified Person.

          Common Stock:  The common stock, par value $.001 per share, of the
Company.

          Exchange Act:  The Securities Exchange Act of 1934, as amended, and
the rules and regulations promulgated thereunder.

          Investor:  See the first paragraph of this Agreement.

          Person:  An individual, partnership, corporation, limited liability
company, trust or unincorporated organization, or a government or agency or
political subdivision thereof.
<PAGE>
 
          Priority Securities:  Shares of Common Stock subject to the terms of
the 1996 Investor Rights Agreement.

          Prospectus:  The prospectus included in any Registration Statement, as
amended or supplemented by any prospectus supplement with respect to the terms
of the offering of any portion of the Registrable Securities covered by such
Registration Statement and by all other amendments and supplements to the
prospectus, including post-effective amendments and all material incorporated by
reference in such prospectus.

          Prudential:  The Prudential Insurance Company of America.

          Prudential Purchase Agreements:  The Amended and Restated Stock
Purchase Agreement dated as of June 12, 1997, by and between the Company and
Prudential; (b) the Stock Purchase Agreement dated as of June 12, 1997, by and
between the Company and Prudential, on behalf of a single client insurance
company separate account contained in Group Annuity Contract No. GA-9032; (c)
the Stock Purchase Agreement dated as of June 12, 1997, by and between the
Company and Strategic Performance Fund-II, Inc., a Maryland corporation; and (d)
the Stock Purchase Agreement dated as of June 12, 1997, by and between the
Company and The Prudential Variable Contract Real Property Partnership.

          Prudential Purchasers:  Prudential, Prudential, on behalf of a single
client insurance company separate account contained in Group Annuity Contract
No. GA-9032, Strategic Performance Fund-II, Inc., a Maryland corporation, and
The Prudential Variable Contract Real Property Partnership.

          Purchase Agreement:  See the recitals to this Agreement.

          Registrable Securities:  (a) The shares of Common Stock received by
the Investor pursuant to the terms of the Purchase Agreement, for the purposes
of the Shelf Registration provided for under Section 2(a) only, the Prudential
Shares, and notwithstanding the provisions of the 1996 Investor Rights
Agreement, any other shares of Common Stock acquired by the Investor (or for the
purposes the Shelf Registration provided for under Section 2(a) only, the
Prudential Purchasers) subsequent to the date hereof (except for any shares of
Common Stock issued upon the conversion of Series B Preferred Stock of the
Company), and, notwithstanding the provisions of the 1996 Investor Rights
Agreement, any other shares of Common Stock acquired by an Investor subsequent
to the date hereof (except for any shares of Common Stock issued upon the
conversion of Series B Preferred Stock of the Company) and (b) any securities
issued or issuable with respect to the shares of Common Stock referred to in the
foregoing clause (a) by way of stock dividend or stock split or in connection
with a combination of shares, recapitalization, merger, consolidation or other
reorganization or otherwise. Any Registrable Security will cease to be a
Registrable Security when (i) a registration statement covering such Registrable
Security has been declared effective by the SEC and the Registrable Security has
been disposed of pursuant to such effective registration statement, (ii) the
Registrable Security is sold under circumstances in which all of the applicable
conditions of Rule 144 (or any similar provisions then in force) under the
Securities Act are met, or (iii) the Registrable Security has been otherwise
transferred, the Company has delivered a new certificate or other evidence of
ownership for it not bearing a legend restricting further transfer, and it may
be resold without subsequent registration under the Securities Act.

                                       2
<PAGE>
 
          Registration Expenses:  See Section 5 hereof.

          Registration Statement:  The Registration Statement of the Company
that covers any of the Registrable Securities pursuant to the provisions of this
Agreement, including the Prospectus included therein, all amendments and
supplements to such Registration Statement, including post-effective amendments,
all exhibits and all material incorporated by reference in such Registration
Statement.

          SEC: The Securities and Exchange Commission.

          Securities Act:  The Securities Act of 1933, as amended, and the rules
and regulations promulgated thereunder.

          Underwritten Registration or Underwritten Offering:  A registration in
which securities of the Company are sold to an underwriter for reoffering to the
public.

          1996 Investor Rights Agreement:  That certain Amended and Restated
Investor Rights Agreement dated February 23, 1996, among the Company and the
stockholders of the Company named therein.

2.        Registration Rights.

          a.   Shelf Registration. At any time prior to December 24, 1997, the
Company shall file with the SEC, and shall use its best efforts to cause to
become effective by the ninety first (91st) day after the date hereof, a
dedicated "shelf" registration statement on any appropriate form pursuant to
Rule 415 (or similar rule that may be adopted by the SEC) under the Securities
Act (a "Shelf Registration") for all of the then Registrable Securities of the
Investor and the Prudential Purchasers.

          The Company shall use its best efforts to keep the Shelf Registration
continuously effective, and to prevent the happening of any event of the kind
described in Sections 4(c)(3), (4) or (5) hereof that requires the Company to
give notice pursuant to the last paragraph of Section 4 hereof, for a period
terminating the earlier of (i) the fifth anniversary of the date on which the
SEC declares the Shelf Registration effective and (ii) on the date on which all
the Registrable Securities covered by the Shelf Registration have been sold
pursuant to such Shelf Registration. The Company shall only be obligated to file
one Shelf Registration pursuant to the terms hereof.

          The Company further agrees to supplement or make amendments to the
Shelf Registration, if required by the rules, regulations or instructions
applicable to the registration form utilized by the Company or by the Securities
Act or requested by the holders of a majority of the Registrable Securities
covered by such registration or any underwriter of the Registrable Securities.

          One or more offerings of Registrable Securities pursuant to the Shelf
Registration may be in the form of Underwritten Offerings at the election of the
holders of Registrable Securities being offered, provided that the Registerable
Securities to be included in any such Underwritten Offering shall have a fair
market value (as defined in Section 2(b)) of at least $20 million. If the
Company receives notice from the Investor or the Prudential Purchasers of such
an Underwritten

                                       3
<PAGE>
 
Offering, it shall notify the Investor and/or the Prudential Purchasers thereof,
and the Investor and/or the Prudential Purchasers shall have the right to
participate in such Underwritten Offering by promptly notifying the Company of
their election to do so. If the managing underwriter or underwriters of such
offering advise the Company and the holders of Registrable Securities in writing
that in their opinion the number of shares of Registrable Securities requested
to be included in any such offering is sufficiently large to materially and
adversely affect the success of such offering, the Company will include in any
offering the aggregate number of Registrable Securities which in the opinion of
such managing underwriter or underwriters can be sold without any such material
adverse effect and the amount to be offered for the accounts of all of such
holders shall be reduced pro rata (according to the Registrable Securities
beneficially owned by such holders) to the extent necessary to reduce the total
amount of securities to be included in such offering to the amount recommended
by such managing underwriter or underwriters. The Company shall use its best
efforts to amend the 1996 Investor Rights Agreement to provide that no other
party, including the Company, shall be permitted to offer securities in any such
offering. No election that an offering under this Section 2(a) shall be an
Underwritten Offering shall be made within 120 days after the closing date of an
Underwritten Offering; provided that with respect to the Investor, no election
that an offering under this Section 2(a) shall be an Underwritten Offering shall
be made within 30 days after the closing date of an Underwritten Offering
occurring prior to the earlier of (i) the date that is 210 days following the
closing date of the Group B or Group C properties under the Purchase Agreement
between Ameritech and the Company, or (ii) June 1, 1998 (such earlier date, the
"Cutoff Date").

          Until the termination of the Shelf Registration, the Investor shall be
permitted to offer and sell a maximum of 30% of its Registrable Securities held
on the date hereof pursuant to the Shelf Registration during any 180 day period;
provided that such limitation shall not apply to any Registrable Securities
offered or sold by the Investor pursuant to one or more Underwritten Offerings,
block trades made by the Investor from time to time involving 25,000 shares or
more, or any offer or sale not involving the Shelf Registration.

     b.        Demand Registration.

          At any time after ninety (90) days from the date hereof, the Investor
may make up to three written requests, each (a "Demand Notice") for registration
under the Securities Act (a "Demand Registration") of all or a portion of the
Registrable Securities held by the Investor, subject to the right to reinstate a
Demand Registration set forth herein; provided, however, that the number of
shares of Registrable Securities requested to be registered (i) shall be greater
than 1% of the shares of Common Stock outstanding and (ii) shall have a "fair
market value" (determined pursuant to the next sentence) in excess of
$1,000,000. For purposes of this Agreement, fair market value of the Registrable
Securities shall be determined as follows: (i) if the security is listed on any
established stock exchange or a national market system, including, without
limitation, the National Market System of the National Association of Securities
Dealers Automated Quotation System, its fair market value shall be the closing
sales price or the closing bid if no sales were reported, as quoted on such
system or exchange (or the largest such exchange) on the date of the Demand
Notice (or if there are no sales or bids for such date, then for the last
preceding business day for such sales or bids), as reported in The Wall Street
Journal or similar publication; (ii) if the security is regularly quoted by a
recognized securities dealer but selling prices are not reported, its fair
market value shall be the mean between the high bid and low asked prices for the
security on the date of the Demand

                                       4
<PAGE>
 
Notice (or if there are no quoted prices for such date, then for the last
preceding business day on which there were quoted prices); or (iii) in the
absence of an established market for the security, the fair market value shall
be determined in good faith by the Company's Board of Directors, with reference
to the Company's net worth, prospective earning power, dividend-paying capacity
and other relevant factors, including the goodwill of the Company, the economic
outlook in the Company's industry, the Company's position in the industry and
its management and the values of stock of other corporations in the same or a
similar line of business (all of such factors determined as of the date of the
Demand Notice).

          Within ten days after receipt of each Demand Notice, the Company shall
give written notice of such registration request to all non-requesting holders
of Registrable Securities and shall, subject to the provisions of the following
paragraph, include in such registration all Registrable Securities with respect
to which the Company received written requests for inclusion therein within 15
days after the receipt of the notice of such Demand Registration request by the
applicable holder. Both the Demand Notice and any request to have Registrable
Securities included in a Demand Registration shall specify the number of shares
of Registrable Securities proposed to be sold and shall also specify the
intended method of disposition thereof. A registration requested pursuant to
this Section 2(b) will not be deemed to have been effected unless the
Registration Statement relating thereto has become effective under the
Securities Act; provided, however, that if, after such Registration Statement
has become effective, the offering of the Registrable Securities pursuant to
such registration is interfered with by any stop order, injunction or other
order or requirement of the SEC or other governmental agency or court, such
registration will be deemed not to have been effected and the demanding
Investor's right to request a Demand Registration hereunder shall be reinstated.
The Investor may, at any time prior to the effective date of the Registration
Statement relating to such registration, revoke such request with respect to
their Registrable Securities by providing a written notice to the Company
revoking such request and the Investor's right to request a Demand Registration
hereunder shall be reinstated.

          If the Investor so elects, the offering of Registrable Securities
pursuant to a Demand Registration shall be in the form of an Underwritten
Offering and such Investor shall have the right to designate the underwriters
and the managing underwriter, subject to approval of the Company, which approval
shall not be unreasonably withheld or delayed. If the managing underwriter or
underwriters of such offering advise the Company and the holders of Registrable
Securities in writing that in their opinion the number of shares of Registrable
Securities requested to be included in such offering is sufficiently large to
materially and adversely affect the success of such offering, the Company will
include in such registration the aggregate number of Registrable Securities
which in the opinion of such managing underwriter or underwriters can be sold
without any such material adverse effect and the Registrable Securities to be
included in such registration shall be allocated, (i) first to the Investor
making such demand, (ii) second among the holders of the Priority Securities
(that have requested inclusion of the Priority Securities beneficially owned by
such holders) to the extent necessary to reduce the total amount of securities
to be included in such offering to the amount recommended by such managing
underwriter or underwriters, (iii) third among the other holders of Registrable
Securities (that have requested inclusion of their Registrable Securities in
such registration), and any other holders of registration rights in respect of
securities of the Company in accordance with the terms of the agreements
granting such rights, pro rata (according to the Registrable Securities or other
securities, as applicable, beneficially owned by such holders) to the extent
necessary to reduce the total amount of securities to be included in such
offering to the

                                       5
<PAGE>

 
amount recommended by such managing underwriter or underwriters, and (iv)
fourth, among the Company and any other holders of registration rights in
respect of securities of the Company that by their terms are subordinate to the
rights of the security holders referred to in clause (iii) above in accordance
with the terms of the agreements granting such rights. The Investor shall not be
entitled to effect a Demand Notice under this Section 2(b) within 120 days after
the closing date of an Underwritten Offering; provided that with respect to
Ameritech, no election that an offering under this Section 2(b) shall be an
Underwritten Offering shall be made within 30 days after the closing date of an
Underwritten Offering occurring prior to the Cutoff Date.

          No registration pursuant to a request or requests referred to in this
subsection 2(b) shall be deemed to be a Shelf Registration.

     c.        Incidental Registration. If the Company proposes to file a
          registration statement under the Securities Act (other than in
          connection with the Shelf Registration, a Demand Registration, a
          Registration Statement on Form S-4 or S-8 or any form substituting
          therefor, or a shelf registration statement on Form S-3 or any form
          substituting therefor relating to (i) issuances of securities other
          than Common Stock (or securities convertible into Common Stock) by the
          Company for cash, or (ii) so long as the Shelf Registration remains
          effective, resales of equity securities of the Company by one or more
          security holders of the Company pursuant to Rule 415 under the
          Securities Act) with respect to an offering of any class of security
          by the Company for its own account or for the account of any of its
          security holders, then the Company shall give written notice of such
          proposed filing to the holders of the Registrable Securities as soon
          as practicable (but in no event less than thirty (30) days before the
          anticipated filing date), and such notice shall offer such holders the
          opportunity to register such number of Registrable Securities as each
          such holder may request. Each holder of Registrable Securities
          desiring to have its Registrable Securities registered under this
          Section 2(c) shall so advise the Company in writing within fifteen
          (15) days after the date of receipt of such notice from the Company
          (which request shall set forth the number of Registrable Securities
          for which registration is requested). The Company shall include in
          such Registration Statement all such Registrable Securities so
          requested to be included therein, and, if such registration is an
          Underwritten Registration, the Company shall use its best efforts to
          cause the managing underwriter or underwriters to permit the
          Registrable Securities requested to be included in the Registration
          Statement for such offering to be included (on the same terms and
          conditions as similar securities of the Company included therein to
          the extent appropriate); provided, however, that if the managing
          underwriter or underwriters of such offering deliver a written opinion
          to the holders of such Registrable Securities that the total number of
          securities that the Company, the holders of Registrable Securities, or
          such other persons propose to include in such offering is such that
          the success of the offering would be materially and adversely affected
          by inclusion of the securities requested to be included, then the
          amount of securities to be offered for the accounts of the Company,
          the holders of Registrable Securities and other holders registering
          securities pursuant to registration rights shall be allocated as
          follows:

                                       6
<PAGE>
 

          (i)   if such registration has been initiated by the Company as a
                primary offering, first to the securities sought to be included
                by the Company, second to the Priority Securities sought to be
                included by the holders thereof, and third to the Registrable
                Securities sought to be included by the holders thereof and the
                securities sought to be included by other holders of
                registration rights, pro rata, on the basis of the number of
                securities owned by each such holder, and fourth the securities
                sought to be included by other holders of registration rights
                that by their terms are subordinate to the registration rights
                of the security holders referred to in the immediately preceding
                clause, pro rata, on the basis of the number of securities owned
                by each such holder; and

          (ii)  if such registration has been initiated by another holder of
                registration rights (other than pursuant to Section 2(b)
                hereof), first to the securities sought to be included by such
                demanding holder, second to the Priority Securities sought to be
                included by the holders thereof, third to the Registrable
                Securities sought to be included by the holders thereof and to
                all other securities sought to be included by other holders of
                registration rights, pro rata, on the basis of the number of
                securities owned by each such holder, and fourth to the
                securities sought to be included by the Company among the
                Company and any other holders of registration rights in respect
                of securities of the Company that by their terms are subordinate
                to the rights of the security holders referred to in priority
                third above in accordance with the terms of the agreements
                granting such rights.

          If the number of Registrable Securities sought to be registered
pursuant to this Section 2(c) by a holder of Registrable Securities is reduced
as provided above, such holder shall have the right to withdraw such holder's
request for registration with respect to all of the Registrable Securities
initially sought to be registered.

          No registration pursuant to a request or requests referred to in this
Section 2(c) shall be deemed to be a Shelf Registration or a Demand
Registration.

3.        Hold-Back Agreements.

     a.        Restrictions on Public Sale by Holder of Registrable Securities.
          Each holder of Registrable Securities agrees, if requested in writing
          by the managing underwriters in an Underwritten Offering, not to
          effect any public sale or distribution of Registrable Securities of
          the Company of the same class as the securities included in the
          applicable registration statement, including a sale pursuant to Rule
          144 under the Securities Act (except as part of such Underwritten
          Offering or if, prior to receiving such request, such holder has given
          a Demand Notice or a notice of commencement of a public sale or
          distribution pursuant to the Shelf Registration), during the ten (10)
          day period prior to the filing of the registration statement with
          respect to such Underwritten Offering, and during the ninety (90) day
          period beginning on the effective date of the registration statement
          with respect to such Underwritten Offering, to the extent timely
          notified in writing by the Company or the managing underwriters, or,
          in the case of a shelf offering, the date of commencement of a public

                                       7
<PAGE>

 
          distribution of Registrable Securities pursuant to such registration
          statement, as applicable. Notwithstanding the foregoing, if requested
          in writing by the managing underwriters in an Underwritten Offering
          that closes prior to the Cutoff Date, Ameritech shall not effect any
          public sale or distribution of Registrable Securities of the Company
          of the same class as the securities included in the applicable
          registration statement, including a sale pursuant to Rule 144 under
          the Securities Act, during the ten (10) day period prior to the filing
          of the registration statement with respect to such Underwritten
          Offering, and during the thirty (30) day period beginning on the
          closing date of the Underwritten Offering.

     b.        Restrictions on Sale of Securities by the Company. The Company
          agrees not to effect any public sale or distribution of any securities
          similar to those being registered, or any securities convertible into
          or exchangeable or exercisable for such securities (except pursuant to
          a registration statement on Form S-4 or S-8, or any substitute form
          that may be adopted by the SEC) during the ten (10) days prior to the
          filing of a registration statement with respect to an Underwritten
          Offering, and during the ninety (90) day period beginning on the
          effective date of the applicable Registration Statement (except as
          part of such registration statement (x) where the holders of a
          majority of the shares of Registrable Securities to be included in
          such Registration Statement consent or (y) where holders of
          Registrable Securities are participating in such registration
          statement pursuant to Section 2(c) hereof, such registration statement
          was filed by the Company with respect to the sale of securities by the
          Company, and no holder is simultaneously participating in a
          distribution pursuant to a Registration Statement filed by the Company
          pursuant to Section 2(b) hereof) or, in the case of a shelf offering,
          the date of commencement of a public distribution of Registrable
          Securities pursuant to such registration statement, as applicable.

4.        Registration Procedures. In connection with the Company's registration
     obligations pursuant to Section 2 hereof, the Company will use its best
     efforts to effect such registration to permit the sale of such Registrable
     Securities in accordance with the intended method or methods of
     distribution thereof, and pursuant thereto the Company will as
     expeditiously as possible:

     a.        prepare and file with the SEC, as soon as practicable, a
          Registration Statement relating to the applicable registration on any
          appropriate form under the Securities Act, which forms shall be
          available for the sale of the Registrable Securities in accordance
          with the intended method or methods of distribution thereof and shall
          include all financial statements of the Company, and use its best
          efforts to cause such Registration Statement to become effective;
          provided that before filing a Registration Statement or Prospectus or
          any amendments or supplements thereto, including documents
          incorporated by reference after the initial filing of the Registration
          Statement, the Company will furnish to (i) one counsel selected by the
          holders of a majority of the shares of Registrable Securities covered
          by such Registration Statement, and (ii) the underwriters, if any,
          copies of all such documents proposed to be filed, which documents
          will be subject to the review of such counsel and underwriters, and
          the Company will not file any Registration Statement or

                                       8
<PAGE>
 

          amendment thereto or any Prospectus or any supplement thereto
          (including such documents incorporated by reference) to which such
          counsel or the underwriters, if any, shall reasonably object; and
          provided further that the Company shall have the right to delay filing
          or effectiveness of a Registration Statement filed pursuant to Section
          2(b) hereto or the commencement of a public distribution of
          Registrable Securities, as applicable, for up to 120 days if the
          Company's Board of Directors determines, in good faith, that the
          filing or effectiveness thereof or the commencement of such public
          distribution could materially interfere with a pending extraordinary
          transaction involving the Company or bona fide financing plans of the
          Company or would require disclosure of information, the premature
          disclosure of which would not be in the best interests of the Company,
          but no further delays will be permitted;

     b.         prepare and file with the SEC such amendments and post-effective
          amendments to the Registration Statement as may be necessary to keep
          the Registration Statement effective for the period set forth in
          Section 2(a) with respect to the Shelf Registration or nine months
          with respect to a Demand Registration, or such shorter period which
          will terminate when all Registrable Securities covered by such
          Registration Statement have been sold; cause the Prospectus to be
          supplemented by any required Prospectus supplement, and as so
          supplemented to be filed pursuant to Rule 424 under the Securities
          Act; and comply with the provisions of the Securities Act and all
          securities covered by such Registration Statement during the
          applicable period in accordance with the intended method or methods of
          distribution by the holders thereof set forth in such Registration
          Statement or supplement to the Prospectus; the Company shall not be
          deemed to have used its best efforts to keep a Registration Statement
          effective during the applicable period if it voluntarily takes or
          knowingly omits to take any action that would result in selling
          holders of the Registrable Securities covered thereby not being able
          to sell such Registrable Securities during that period unless such
          action is required under applicable law; provided that the foregoing
          shall not apply to actions or omissions taken by the Company in good
          faith and for valid business reasons, including without limitation the
          acquisition or divestiture of assets, so long as the Company promptly
          thereafter complies with the requirements of Section 4(l) hereof, if
          applicable;

     c.        notify the selling holders of Registrable Securities and the
          managing underwriters, if any, promptly, and (if requested by any such
          Person) confirm such advice in writing, (1) when the Prospectus or any
          Prospectus supplement or post-effective amendment has been filed, and,
          with respect to the Registration Statement or any post-effective
          amendment, when the same has become effective, (2) of any request by
          the SEC for amendments or supplements to the Registration Statement or
          the Prospectus or for additional information, (3) of the issuance by
          the SEC of any stop order suspending the effectiveness of the
          Registration Statement or the initiation of any proceedings for that
          purpose, (4) if at any time the representations and warranties of the
          Company contemplated by paragraph (n) below cease to be true and
          correct, (5) of the receipt by the Company of any notification with
          respect to the suspension of the qualification of the Registrable
          Securities for sale in any jurisdiction or the initiation or
          threatening of any proceeding for such purpose and

                                       9
<PAGE>
 
          (6) of the happening of any event which makes any statement made in
          the Registration Statement, the Prospectus or any document
          incorporated therein by reference untrue or which requires the making
          of any changes in the Registration Statement, the Prospectus or any
          document incorporated therein by reference in order to make the
          statements therein not misleading;

     d.        make every reasonable effort to obtain the withdrawal of any
          order suspending the effectiveness of the Registration Statement at
          the earliest possible moment;

     e.        if reasonably requested by the managing underwriter or
          underwriters or a holder of Registrable Securities being sold in
          connection with an Underwritten Offering, promptly incorporate in a
          Prospectus supplement or post-effective amendment such information as
          the managing underwriters and the holders of a majority in number of
          the Registrable Securities being sold agree should be included therein
          relating to the sale of the Registrable Securities, including, without
          limitation, information with respect to the number of Registrable
          Securities being sold to such underwriters, the purchase price being
          paid therefor by such underwriters and with respect to any other terms
          of the Underwritten Offering of the Registrable Securities to be sold
          in such offering; and make all required filings of such Prospectus
          supplement or post-effective amendment as soon as notified of the
          matters to be incorporated in such Prospectus supplement or post-
          effective amendment;

     f.        promptly prior to the filing of any document which is to be
          incorporated by reference into the Registration Statement or the
          Prospectus (after initial filing of the Registration Statement), make
          available representatives of the Company for discussion of such
          document and make such changes in such document prior to the filing
          thereof as counsel for selling holders of Registrable Securities or
          underwriters may reasonably request;

     g.        furnish to each selling holder of Registrable Securities and each
          managing underwriter, without charge, at least one signed copy of the
          Registration Statement and any post-effective amendment thereto,
          including financial statements and schedules, all documents
          incorporated therein by reference and all exhibits (including those
          incorporated by reference);

     h.        deliver to each selling holder of Registrable Securities and the
          underwriters, if any, without charge, as many copies of the Prospectus
          (including each preliminary prospectus) and any amendment or
          supplement thereto as such Persons may reasonably request; the Company
          consents to the use of the Prospectus or any amendment or supplement
          thereto by each of the selling holders of Registrable Securities and
          the underwriters, if any, in connection with the offering and sale of
          the Registrable Securities covered by the Prospectus or any amendment
          or supplement thereto;

     i.        prior to any public offering of Registrable Securities, register
          or qualify or cooperate with the selling holders of Registrable
          Securities, the underwriters, if any,

                                      10
<PAGE>
 
          and their respective counsel in connection with the registration or
          qualification of such Registrable Securities for offer and sale under
          the securities or blue sky laws of such jurisdictions as any such
          selling holder or underwriter reasonably requests in writing and do
          any and all other acts or things necessary or advisable to enable the
          disposition in such jurisdictions of the Registrable Securities
          covered by the Registration Statement;

j.             cooperate with the selling holders of Registrable Securities and
          the managing underwriters, if any, to facilitate the timely
          preparation and delivery of certificates representing Registrable
          Securities to be sold and not bearing any restrictive legends; and
          enable such Registrable Securities to be in such denominations and
          registered in such names as the managing underwriters may request at
          least two business days prior to any sale of Registrable Securities to
          the underwriters;

k.             cause the Registrable Securities covered by the applicable
          Registration Statement to be registered with or approved by such other
          governmental agencies or authorities as may be necessary to enable the
          seller or sellers thereof or the underwriters, if any, to consummate
          the disposition of such Registrable Securities;

l.             upon the occurrence of any event contemplated by Section 4(c)(6)
          above, prepare a supplement or post-effective amendment to the
          Registration Statement or the related Prospectus or any document
          incorporated therein by reference or file any other required document
          so that, as thereafter delivered to the purchasers of the Registrable
          Securities, the Prospectus will not contain an untrue statement of a
          material fact or omit to state any material fact necessary to make the
          statements therein not misleading;

m.             cause all Registrable Securities covered by the Registration
          Statement to be listed on each securities exchange on which similar
          securities issued by the Company are then listed;
    
n.             enter into and perform its obligations under such agreements
         (including an underwriting agreement) and take all such other actions
         in connection therewith in order to expedite or facilitate the
         disposition of such Registrable Securities and in connection therewith,
         whether or not an underwriting agreement is entered into and whether or
         not the registration is an Underwritten Registration, (1) make such
         representations and warranties to the holders of such Registrable
         Securities and the underwriters, if any, in form, substance and scope
         as are customarily made by issuers to underwriters in primary
         underwritten offerings; (2) obtain opinions of counsel to the Company
         and updates thereof (which counsel and opinions (in form, scope and
         substance) shall be reasonably satisfactory to the managing
         underwriters, if any, and the holders of a majority of the Registrable
         Securities included in such registration, covering the matters
         customarily covered in opinions requested in Underwritten Offerings and
         such other matters as may be reasonably requested by such holders and
         underwriters); (3) obtain "cold comfort" letters and updates thereof
         from the Company's independent certified public accountants addressed
         to the selling holders of Registrable Securities and the underwriters,
         if any, such letters to be in customary

                                       11
 
<PAGE>
 
          form and covering matters of the type customarily covered in "cold
          comfort" letters by underwriters in connection with primary
          Underwritten Offerings; (4) if an underwriting agreement is entered
          into, the same shall set forth in full the indemnification provisions
          and procedures of Section 6 hereof with respect to all parties to be
          indemnified pursuant to said Section; and (5) the Company shall
          deliver such documents and certificates as may be requested by the
          holders of a majority of the Registrable Securities being sold and the
          managing underwriters, if any, to evidence compliance with clause (1)
          above and with any customary conditions contained in the underwriting
          agreement or other agreement entered into by the Company. The above
          shall be done at each closing under such underwriting or similar
          agreement or as and to the extent required thereunder;

     o.        make available for inspection by representatives of the holders
          of the Registrable Securities, any underwriter participating in any
          disposition pursuant to such registration, and any attorney or
          accountant retained by the sellers or underwriter, all financial and
          other records, pertinent corporate documents and properties of the
          Company and cause the Company's officers, directors, employees,
          counsel and accountants to supply all information reasonably requested
          by any such representative, underwriter, attorney or accountant in
          connection with such registration; provided that any records,
          information or documents that are designated by the Company in writing
          as confidential shall be kept confidential by such Persons unless
          disclosure of such records, information or documents is required by
          court or administrative order;

     p.        comply with all applicable rules and regulations of the SEC and
          make available to its security holders, as soon as reasonably
          practicable, earning statements satisfying the provisions of Section
          11(a) of the Securities Act and Rule 158 thereunder (or any similar
          rule promulgated under the Securities Act), covering any 12-month
          period (or 90 days after the end of any 12-month period if such period
          is a fiscal year) (i) commencing at the end of any fiscal quarter in
          which Registrable Securities are sold to underwriters in a firm
          commitment or reasonable efforts underwritten offering and (ii) if not
          sold to underwriters in such an offering, commencing on the first day
          of the first fiscal quarter of the Company after the effective date of
          a Registration Statement;

     q.        cooperate with each seller of Registrable Securities and each
          underwriter participating in the disposition of such Registrable
          Securities and their respective counsel in connection with any filings
          required to be made with the National Association of Securities
          Dealers, Inc. (the "NASD"); and

     r.        exempt any underwriter from the prohibition on owning more than a
          specified percentage of the Company's Common Stock set forth in the
          Company's articles of incorporation.

          The Company may require each seller of Registrable Securities as to
which any registration is being effected to furnish to the Company such
information regarding the distribution of such securities as the Company may
from time to time reasonably request in writing and to enter
    
                                       12
<PAGE>
 
into agreements related to the distribution of the Registrable Securities that
are designed to insure compliance with the Exchange Act.

          Each holder of Registrable Securities agrees by acquisition of such
Registrable Securities that, upon receipt of any notice from the Company of the
happening of any event of the kind described in Section 4(c)(6) hereof, such
holder will forthwith discontinue disposition of Registrable Securities until
such holder's receipt of the copies of the supplemented or amended Prospectus
contemplated by Section 4(c)(6) hereof, or until it is advised in writing (the
"Advice") by the Company that the use of the Prospectus may be resumed, and has
received copies of any additional or supplemental filings which are incorporated
by reference in the Prospectus, and, if so directed by the Company such holder
will deliver to the Company (at the Company's expense), all copies, other than
permanent file copies then in such holder's possession, of the Prospectus
covering such Registrable Securities current at the time of receipt of such
notice.  In the event the Company shall give any such notice, the time periods
regarding the effectiveness of Registration Statements set forth in Section 2
hereof and Section 4(b) hereof shall be extended by the number of days during
the period from and including the date of the giving of such notice pursuant to
Section 4(c)(6) hereof to the date when the selling holders of Registrable
Securities covered by such registration statement shall receive copies of the
supplemented or amended prospectus contemplated by Section 4(l) hereof or the
Advice.

5.        Registration Expenses. All expenses incident to the Company's
     performance of or compliance with this Agreement, including without
     limitation: all registration and filing fees; all fees associated with a
     required listing of the Registrable Securities on any securities exchange;
     fees and expenses with respect to filings required to be made with the
     NASD; fees and expenses of compliance with securities or blue sky laws
     (including fees and disbursements of counsel for the underwriters or
     holders of Registrable Securities in connection with blue sky
     qualifications of the Registrable Securities and determination of their
     eligibility for investment under the laws of such jurisdictions as the
     managing underwriters or holders of a majority of the Registrable
     Securities being sold may designate); printing expenses, messenger,
     telephone and delivery expenses; fees and disbursements of counsel for the
     Company and customary fees and expenses for independent certified public
     accountants retained by the Company (including the expenses of any comfort
     letters or costs associated with the delivery by independent certified
     public accountants of a comfort letter or comfort letters requested
     pursuant to Section 4(n) hereof); securities acts liability insurance, if
     the Company so desires; all internal expenses of the Company (including,
     without limitation, all salaries and expenses of its officers and employees
     performing legal or accounting duties); the expense of any annual audit;
     and the fees and expenses of any Person, including special experts,
     retained by the Company (all such expenses being herein called
     "Registration Expenses") will be borne by the Company regardless of whether
     the Registration Statement becomes effective. The Company shall not have
     any obligation to pay any underwriting fees, discounts, or commissions
     attributable to the sale of Registrable Securities, or any legal fees and
     expenses of counsel to the holders of Registrable Securities.

6.        Indemnification; Contribution.

     a.        Indemnification by Company. The Company agrees to indemnify and
          hold harmless each holder of Registrable Securities and each Person
          who controls such 

                                      13
<PAGE>
 
          Person (within the meaning of Section 15 of the Securities Act or
          Section 20 of the Exchange Act) and their respective partners,
          officers, directors, employees, agents, and Affiliates, against all
          losses, claims, damages, liabilities and expenses (including without
          limitation the reasonable fees and disbursements of counsel for such
          Person in connection with any investigative, administrative or
          judicial proceeding commenced or threatened by any other Person
          (including without limitation, the Company or its Affiliates)) arising
          out of or based upon any untrue or alleged untrue statement of a
          material fact contained in any Registration Statement, Prospectus,
          preliminary prospectus or any post-effective amendments or supplements
          thereto or any omission or alleged omission to state therein a
          material fact required to be stated therein or necessary to make the
          statements therein not misleading, except insofar as the same are
          caused by or contained in any information furnished in writing to the
          Company by the holders of Registrable Securities expressly for use
          therein. The Company will also indemnify underwriters, selling
          brokers, dealer managers and similar securities industry professionals
          participating in the distribution, their officers and directors and
          each Person who controls such Persons (within the meaning of Section
          15 of the Securities Act or Section 20 of the Exchange Act) to the
          same extent as provided above with respect to the indemnification of
          the holders of Registrable Securities, if requested.
 
     b.        Indemnification by Holder of Registrable Securities. Each holder
          of Registrable Securities agrees severally and not jointly to
          indemnify and hold harmless the Company, each Person who controls the
          Company (within the meaning of Section 15 of the Securities Act or
          Section 20 of the Exchange Act), each other holder and their
          respective partners, directors, officers, employees, agents, and
          Affiliates against any losses, claims, damages, liabilities and
          expenses (including without limitation the reasonable fees and
          disbursements of counsel for such Person in connection with any
          investigative, administrative or judicial proceeding commenced or
          threatened by any other Person) resulting from any untrue statement of
          a material fact or any omission of a material fact required to be
          stated in the Registration Statement, Prospectus, preliminary
          prospectus or any post-effective amendment or supplement thereto or
          necessary to make the statements therein not misleading, to the
          extent, but only to the extent, that such untrue statement or omission
          is contained in any information or affidavit so furnished in writing
          by such holder to the Company specifically for inclusion therein. In
          no event shall the liability of any selling holder of Registrable
          Securities hereunder be greater in amount than the dollar amount of
          the proceeds received by such holder upon the sale of the Registrable
          Securities giving rise to such indemnification obligation. The Company
          shall be entitled to receive indemnities from underwriters, selling
          brokers, dealer managers and similar securities industry professionals
          participating in the distribution, to the same extent as provided
          above with respect to information so furnished in writing by such
          Persons specifically for inclusion in any Registration Statement,
          Prospectus, preliminary prospectus or any post-effective amendment or
          supplement thereto.
     
     c.        Conduct of Indemnification Proceedings. Any Person entitled to
          indemnification hereunder will (i) give prompt notice to the
          indemnifying party of any claim with respect to which it seeks
          indemnification and (ii) permit such

                                       14
<PAGE>
 
          indemnifying party to assume the defense of such claim with counsel
          reasonably satisfactory to the indemnified party; provided, however,
          that any Person entitled to indemnification hereunder shall have the
          right to employ separate counsel and to participate in the defense of
          such claim, but the fees and expenses of such counsel shall be at the
          expense of such Person unless (a) the indemnifying party has agreed to
          pay such fees or expenses, (b) the indemnifying party shall have
          failed to assume the defense of such claim and employ counsel
          reasonably satisfactory to such Person or (c) based upon advice of
          counsel of such Person, a conflict of interest may exist between such
          Person and the indemnifying party with respect to such claims (in
          which case, if the Person notifies the indemnifying party in writing
          that such Person elects to employ separate counsel at the expense of
          the indemnifying party, the indemnifying party shall not have the
          right to assume the defense of such claim on behalf of such Person),
          in each of which events the fees and expenses of such counsel shall be
          at the expense of the indemnifying party. The indemnifying party will
          not be subject to any liability for any settlement made without its
          consent (but such consent will not be unreasonably withheld), but if
          settled with its written consent, or if there be a final judgment for
          the plaintiff in any such action or proceeding, the indemnifying party
          shall indemnify and hold harmless the indemnified parties from and
          against any loss or liability (to the extent stated above) by reason
          of such settlement or judgment. No indemnified party will be required
          to consent to entry of any judgment or enter into any settlement which
          does not include as an unconditional term thereof the giving by the
          claimant or plaintiff to such indemnified party of a release from all
          liability in respect to such claim or litigation.

     d.        Contribution. If for any reason the indemnification provided for
          in the preceding clauses (a) and (b) is unavailable to an indemnified
          party or insufficient to hold it harmless as contemplated by the
          preceding clauses (a) and (b), then each indemnifying party shall
          contribute to the amount paid or payable by the indemnified party as a
          result of such loss, claim, damage or liability in such proportion as
          is appropriate to reflect not only the relative benefits received by
          the indemnified party and each such indemnifying party, but also the
          relative fault of the indemnified party and each such indemnifying
          party, as well as any other relevant equitable considerations,
          provided, that no holder of Registrable Securities shall be required
          to contribute an amount greater than the dollar amount of the proceeds
          received by such holder with respect to the sale of the Registrable
          Securities giving rise to such indemnification obligation. The
          relative fault of the Company on the one hand and of the selling
          holders on the other shall be determined by reference to, among other
          things, whether the untrue or alleged untrue statement of a material
          fact or the omission or alleged omission to state a material fact
          relates to information supplied by such party, and the parties'
          relative intent, knowledge, access to information, and opportunity to
          correct or prevent such statement or omission. No person guilty of
          fraudulent misrepresentation (within the meaning of Section 11(f) of
          the Securities Act) shall be entitled to contribution from any person
          who was not guilty of such fraudulent misrepresentations.

                                       15
<PAGE>
 
7.        Rule 144.  The Company hereby agrees that, at any time and from time
     to time, it will file the reports required to be filed by it under the
     Securities Act and the Exchange Act and the rules and regulations adopted
     by the SEC thereunder (or, if the Company is not required to file such
     reports, it will, upon the request of any holder of Registrable Securities
     made ninety (90) days after the date hereof, make publicly available other
     information so long as necessary to permit sales pursuant to Rule 144 under
     the Securities Act), and it will take such further action as any holder of
     Registrable Securities may reasonably request, all to the extent required
     from time to time to enable such holder to sell Registrable Securities
     without registration under the Securities Act within the limitation of the
     exemptions provided by (a) Rule 144 under the Securities Act, as such Rule
     may be amended from time to time, or (b) any similar rule or regulation
     hereafter adopted by the SEC. Upon the request of any holder of Registrable
     Securities, the Company will deliver to such holder a written statement as
     to whether it has complied with such information and requirements.

8.        Participation in Underwritten Registrations.
  
     a.        If any of the Registrable Securities covered by the Shelf
          Registration are to be sold in an Underwritten Offering, the
          investment banker or investment bankers and manager or managers that
          will administer the offering will be selected by the holders of a
          majority of the Registrable Securities included in such offering;
          provided, that such investment bankers and managers must be reasonably
          satisfactory to the Company.
 
     b.        No Person may participate in any Underwritten Registration
          hereunder unless such Person (i) agrees to sell such Person's
          securities on the basis provided in any underwriting arrangements
          approved by the Persons entitled hereunder to approve such
          arrangements and (ii) completes and executes all questionnaires,
          powers of attorney, indemnities, underwriting agreements and other
          documents required under the terms of such underwriting arrangements.
          Nothing in this Section 8 shall be construed to create any additional
          rights regarding the registration of Registrable Securities in any
          Person otherwise than as set forth herein.

9.        [Reserved.]

10.       Miscellaneous.

     a.        Remedies.  Each party hereto, in addition to being entitled to
          exercise all rights provided herein or granted by law, including
          recovery o damages, will be entitled to specific performance of its
          rights under this Agreement to the extent available under applicable
          law. Each party hereto agrees that monetary damages would not be
          adequate compensation for any loss incurred by reason of a breach by
          it of the provisions of this Agreement and hereby agrees to waive the
          defense in any action for specific performance that a remedy at law
          would be adequate. In any proceeding brought to enforce any provision
          of this Agreement, the successful party shall be entitled to recover
          reasonable attorneys' fees in addition to its costs and expenses and
          any other available remedy.

                                       16
<PAGE>
 
     b.        Additional Registration Rights. The Company will not on or after
          the date of this Agreement enter into any agreement granting
          registration right to any other Person with respect to the securities
          of the Company that are not pari passu or subordinate to the rights
          granted to the holders of Registrable Securities hereunder with
          respect to any incidental registration rights of the type described in
          Section 2(c) hereof without the written consent of the holders of a
          majority of the then outstanding Registrable Securities. Any agreement
          entered into pursuant to such consent shall not be amended without a
          further written consent of the holders of a majority of the then
          outstanding Registrable Securities.

     c.        Preemptive Rights.  At any time the Company grants any preemptive
          rights with respect to its securities to any of its shareholders it
          shall grant to each Investor preemptive rights that are no less
          favorable than those granted to such shareholder.

     d.        Amendments and Waivers.  No amendment, modification or supplement
          to this Agreement or any provision hereof, and no waiver or consent to
          departure from the provisions hereof, shall affect or be binding upon
          any party who has not consented in writing to such amendment,
          modification, supplement, waiver or consent to departure.
  
     e.        Notices.  All notices and other communications provided for or
          permitted hereunder shall be made in writing by hand-delivery,
          registered first-class mail, telecopier, or air courier guaranteeing
          overnight delivery:

          i.        if to Ameritech, at the most current address given by
               Ameritech to the Company, in accordance with the provisions of
               this subsection, which address initially is 225 West Randolf
               HQ13A, Chicago, Illinois 60606, Attention: Director Investment
               Operations Department, with copies to (A) Director, Real Estate
               Investments, and Attorney, Real Estate Investments (each at the
               above address), (B) State Street Bank and Trust Company, One
               Enterprise Drive, Solomon Willard Building (W4B), North Quincy,
               Massachusetts 02171, Attention: Antonio M. Pimentel, Jr., and (C)
               Winston & Strawn, 35 West Wacker Drive, Chicago, Illinois 60601,
               Attention: Andrew J. McDonough.

          ii.       if to the Company, initially at 455 Market Street, 17th
               Floor, Sa Francisco, California 94105, Attention: Chief Executive
               Officer, and thereafter at such other address as may be
               designated from time to time by notice given in accordance with
               the provisions of this Section 11(d), with a copy to Vinson &
               Elkins L.L.P., 2001 Ross Avenue, Suite 3700, Dallas, Texas 75201,
               Attention: Michael D. Wortley, Esq.; and
  
          iii.      if to any transferee, at the address given by such
               transferee to the Company.

     f.        Successors and Assigns.  This Agreement shall inure to the
          benefit of and be binding upon the successors, assigns and transferees
          of each of the parties, including,

                                       17
<PAGE>
 
          without limitation and without the need for an express assignment,
          subsequent holders of Registrable Securities; provided that nothing
          herein shall be deemed to permit any assignment, transfer or other
          disposition of Registrable Securities in violation of the terms
          hereof; provided, further, that holders of Registrable Securities may
          not assign their rights under this Agreement except in connection with
          the permitted transfer of Registrable Securities and then only insofar
          as relates to such Registrable Securities; and provided further that
          with respect to any transfers of Registered Securities subsequent to
          the filing or effectiveness of the Shelf Registration the Company
          shall exert its best efforts to amend the Shelf Registration to
          provide that any such transferee shall have the rights of an Investor
          with respect thereto. The rights to request a Demand Registration
          under Section 2(b) hereof reserved to the Investor under this
          Agreement shall not be transferable provided that Ameritech shall be
          permitted to assign the rights to request up to two Demand
          Registrations under Section 2(b) hereof in connection with a transfer
          of Registrable Securities and any such assignee of Ameritech shall
          have no further right to assign such rights. If any transferee shall
          acquire Registrable Securities, in any manner, whether by operation of
          law or otherwise, such Registrable Securities shall be held subject to
          all of the terms of this Agreement, and by taking and holding such
          Registrable Securities, such Person shall be conclusively deemed to
          have agreed to be bound by and to perform all of the terms and
          provisions of this Agreement, including the restrictions on resale set
          forth in this Agreement and, if applicable, the Purchase Agreement,
          and such Person shall be entitled to receive the benefits hereof.

     g.        Counterparts.  This Agreement may be executed in any number of
          counterparts and by the parties hereto in separate counterparts, each
          of which when so executed shall be deemed to be an original and all of
          which taken together shall constitute one and the same agreement.

     h.        Headings.  The headings in this Agreement are for convenience of
          reference only and shall not limit or otherwise affect the meaning
          hereof.

     i.        Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED
          IN ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE OF MARYLAND.

     j.        Severability. In the event that any one or more of the provisions
          contained herein, or the application thereof in any circumstance, is
          held invalid, illegal or unenforceable, the validity, legality and
          enforceability of any such provision in every other respect and of the
          remaining provisions contained herein shall not be affected or
          impaired thereby.

     k.        Entire Agreement. This Agreement is intended by the parties as a
          final expression of their agreement and intended to be a complete and
          exclusive statement of the agreement and understanding of the parties
          hereto in respect of the subject matter contained herein. This
          Agreement supersedes all prior agreements and understandings between
          the parties with respect to such subject matter.

                                      18
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have executed this Registration
Rights Agreement as of the date first written above.


                              MERIDIAN INDUSTRIAL TRUST, INC.


                              By: /s/ Robert A. Dobbin
                                 ---------------------
                              Name: Robert A. Dobbin
                                   -----------------
                              Title: Secretary
                                    ----------



                              AMERITECH PENSION TRUST

                              By:  State Street Bank and Trust Company, as 
                                   Trustee
                                   By: /s/ John J. Muir
                                   --------------------
                              Name: John J. Muir
                                   --------------------
                              Title: Vice President
                                    -------------------

                                      19

<PAGE>
 
                                   EXHIBIT H
                                   ---------


                                MIT - AMERITECH
                              AMENDED AND RESTATED
                           EXCEPTED HOLDER AGREEMENT


     This AMENDED AND RESTATED EXCEPTED HOLDER AGREEMENT is made and entered
into as of September 30, 1997 by and between MERIDIAN INDUSTRIAL TRUST, INC., a
Maryland corporation (the "Company"), and STATE STREET BANK AND TRUST COMPANY,
not individually but solely as Trustee for Ameritech Pension Trust, and any
successor trustee therefor ("Ameritech").

                                R E C I T A L S
                                - - - - - - - -

     A.   To help the Company maintain its status as a real estate investment
trust ("REIT") under the Internal Revenue Code of 1986, as amended (the "Code"),
the Company's Third Amended and Restated Articles of Incorporation (the
"Articles") impose certain limitations on the ownership of the Company's stock.
(Capitalized terms used in this Agreement that are not otherwise defined shall
have the meanings given to them in the Articles.)  The Articles contain a
general restriction prohibiting any Person from owning more than a specified
percentage (initially set at eight and one half percent) of the lesser of the
number or value of any class of outstanding shares of the Company (the
"Ownership Limit").

     B.   The Company's Board of Directors is permitted to establish an
"Excepted Holder Limit" allowing ownership in excess of the Ownership Limit if
certain conditions are satisfied. This Agreement is intended to increase the
current Excepted Holder Limit for Ameritech.

     C.   On February 23, 1996,  the Company and Ameritech entered into an
Excepted Holder Agreement.  The Company and Ameritech each desire to amend and
restate the existing Excepted Holder Agreement in its entirety.

                               A G R E E M E N T
                               - - - - - - - - -

1.   REPRESENTATIONS AND COVENANTS OF AMERITECH

     Beginning on February 23, 1996, and during any period that an Excepted
Holder Limit established pursuant to this Agreement (as subsequently adjusted)
remains in effect, Ameritech represents and agrees as follows:

     1.1       Applying the stock ownership rules of Code Section 856(h),

          a.        the shares that Ameritech owns will be treated as owned by
               Ameritech Pension Trust, which is a "qualified trust" that is and
               will be treated as described in clause (i) of Code Section
               856(h)(3)(A), and
<PAGE>
 
          b.        No beneficiary of Ameritech will be considered to own (nor
               any "individual," including individuals who are treated as owning
               an interest through such beneficiary) an actuarial interest in
               Ameritech of more than 0.5%.

     1.2       Not later than October 31, 1997, Ameritech shall deliver to the
          Company a written certification that to the best knowledge of
          Ameritech based upon the due diligence described below, Ameritech does
          not actually own or Constructively Own an interest in any tenant of
          the Company (or any entity owned or controlled by the Company) listed
          on Schedule 1 attached hereto that would cause the Company to
          Constructively Own more than a 9.9 percent interest (within the
          meaning of Section 856(d)(2)(B) of the Code) in such tenant, without
          regard to the other interests in such tenant which the Company may
          actually or Constructively Own. The due diligence referred to above
          shall consist of a review by Ameritech of the most recently received
          copies of all financial reports received from (i) each partnership in
          which Ameritech directly or indirectly holds an equity interest; and
          (ii) each corporation in which Ameritech owns directly or indirectly a
          10 percent or greater equity interest. The foregoing certification
          shall be made only with respect to the date of such certification and
          shall not constitute a continuing representation or covenant with
          respect to the matters described in this Section 1.2.

     1.3       Ameritech will not own, actually, Beneficially, or Constructively
          shares of the Company's Equity Stock that would violate the Excepted
          Holder Limit established for Ameritech pursuant to this Agreement.

     1.4       Ameritech agrees that any violation or attempted violation of
          Section 1.1 or 1.3 of this Agreement or the provisions of the Board of
          Directors' resolution implementing this Agreement (or other action
          contrary to the ownership restrictions imposed under the Articles)
          will automatically subject the shares that otherwise would result in
          the violation to the treatment described in Sections 5.5 and 5.6 of
          the Articles (the shares will be immediately transferred to a Trust,
          or if the transfer to the Trust would be ineffective, the purported
          Transfer will be void ab initio).

     1.5       Ameritech will not intentionally take any action which is known
          by the person taking such action to result in a breach of any
          representation, warranty or covenant of Ameritech set forth in this
          Agreement, or an Ameritech Ownership Event (as defined below).

     1.6       In the event that Ameritech is unable to perform the undertaking
          set forth in Section 1.2, the representations or covenants provided
          for therein are breached in any respect or Ameritech owns, actually or
          Constructively, an interest in a tenant of the Company (or a tenant of
          any entity owned or controlled by the Company) which causes the
          Company to own, actually or Constructively, an interest in such tenant
          which is described in Section 856(d)(2)(B) of the Code and, as a
          consequence, fail to satisfy any of the gross income requirements of
          Section 856(c) of the Code because of income derived by the Company
          from such tenant (an "Ameritech Ownership Event"), then:

                                       2
<PAGE>
 
     a.        any party hereto who becomes aware of such breach or Ameritech
          Ownership Event shall promptly notify the other party in writing of
          such breach or Ameritech Ownership Event; and

     b.        the Company shall take all reasonably available actions with
          respect to its assets and sources of gross receipts in order to
          prevent the incurrence of any material tax liability by the Company,
          to the extent that the Board of Directors of the Company determines
          that such actions are in the best interests of the Company and its
          stockholders and will not cause significant economic detriment to the
          Company; and

     c.        in the event that, pursuant to the provisions set forth in
          subsection 1.6(b), the Company is unable to resolve the circumstance
          giving rise to the notice provided in subsection 1.6(a) within 60 days
          after the receipt of such notice, then the Company and Ameritech shall
          promptly undertake good faith negotiations to resolve any such
          circumstance in a manner that will not result in any material tax
          liability to the Company or produce any economic loss for Ameritech.

Notwithstanding any other provision of the Articles or of any other agreement
between Ameritech and the Company, the sole and exclusive remedies of the
Company with respect to the failure of Ameritech to perform the undertakings set
forth in Section 1.2 hereof or with respect to the occurrence of an Ameritech
Ownership Event shall be the remedies set forth in this Section 1.6 (and, in
particular, the Preferred Stock or common stock in the Company owned by
Ameritech shall not be subject to the Shares-in-Trust provisions of Section 5.5
of the Articles upon the occurrence of such breach or Ameritech Ownership
Event).

2.   ESTABLISHMENT OF AN EXCEPTED HOLDER LIMIT FOR AMERITECH

     Based on the above representations and agreements, the Company, effective
as of the date of this Agreement, has established an Excepted Holder Limit for
Ameritech by adopting a resolution of its Board of Directors in the form
attached to this Agreement as Exhibit "A".

3.   APPLICABILITY OF CHARTER PROVISIONS

     3.1       Ameritech and the Company agree that, in lieu of the provisions
          of paragraphs 5.3.3(a) and 5.3.3(b) of the Articles, by which
          Ameritech, as an Excepted Holder, would otherwise be bound, Ameritech
          will be bound by the provisions set forth in Section 1.2 and Section
          1.6 above as if they were set forth in the Articles.

     3.2       Ameritech and the Company agree that, in lieu of the provisions
          of paragraph 5.4.2 of the Articles, by which Ameritech, as a
          Beneficial Owner or Constructive Owner of Equity Stock, would
          otherwise be bound, Ameritech will provide the following information
          to the Company on an annual basis in accordance with this Section 3.2:

                                       3
<PAGE>
 
     a.        No later than December 31 of each calendar year, the Company will
          use commercially reasonable efforts to ascertain the equity ownership
          of each of its tenants, excluding those tenants from whom the Company
          (or any entity owned or controlled by the Company, in whole or in
          part) derives or is expected to continue to derive a sufficiently
          small amount of revenue such that, in the opinion of the management of
          the Company, rent from such tenant would not adversely affect the
          Company's ability to qualify as a REIT (after such exclusion, herein
          referred to as the "Remaining Tenants");

     b.        No later than December 31 of each year, the Company will compile
          a list of the Remaining Tenants whose equity ownership it has been
          unable to ascertain (the "Tenant List") and will deliver the Tenant
          List to Ameritech along with the Letter of Direction substantially in
          the form attached hereto as Exhibit "B";

     c.        So long as Ameritech owns or Constructively Owns at least 10% of
          the Equity Stock in the Company, no later than 60 days after the
          receipt of the Tenant List and Letter of Direction from the Company,
          Ameritech will complete the Letter of Direction and return it to the
          Company by U.S. Certified Mail, certifying that to the best of the
          knowledge of the certifying person, based on the Tenant List either
          (i) Ameritech does not directly own or Constructively Own (A) any
          equity interest in any Tenant that is a partnership listed on the
          Tenant List or (B) 10% or more of the equity interests in any Tenant
          that is a corporation listed on the Tenant List or (ii) Ameritech does
          directly own or Constructively Own 10% or more of the equity interests
          in a Tenant listed on the Tenant List and will provide the name of
          such Tenant. As an alternative to making the certification required
          herein, Ameritech will have the option to provide the Company with a
          list of all partnerships in which it holds any equity interest and all
          corporations in which it holds a 10% or more equity interest.
          Ameritech and the Company agree that the Company's sole remedy for a
          failure by Ameritech to comply with the provisions of this Section 3.2
          shall be to seek injunctive or equitable relief to cause Ameritech to
          deliver the documents referred to in this subsection 3.2(c).

4.        MISCELLANEOUS

     4.1       The Company represents and warrant that Schedule 1 sets forth a
          true and complete list of the Company's Remaining Tenants.

     4.2       All questions concerning the construction, validity and
          interpretation of this Agreement shall be governed by and construed in
          accordance with the domestic laws of the State of Maryland, without
          giving effect to any choice of law or conflict of law provision
          (whether of the State of Maryland or any other jurisdiction) that
          would cause the application of the laws of any jurisdiction other than
          the State of Maryland.

                                       4
<PAGE>
 
   4.3         This Agreement may be signed by the parties in separate
          counterparts, each of which when so signed and delivered shall be an
          original, but all such counterparts shall together constitute one and
          the same instrument.

                                       5
<PAGE>
 
     Each of the parties has caused this Agreement to be signed by its duly
authorized officers as of the date set forth in the introductory paragraph of
this Agreement.


The "Company"                             "Ameritech"
MERIDIAN INDUSTRIAL TRUST, INC.,          STATE STREET BANK AND TRUST
a Maryland corporation                    COMPANY, not invididually but solely
                                          Trustee for Ameritech Pension Trust

 
By: /s/ Robert A. Dobbin                  By: /s/ John J. Muir
   -------------------------                  -----------------------
Name:   Robert A. Dobbin                  Name:   John J. Muir
     -----------------------                   ----------------------
Its:    Secretary                         Its:    Vice President
     -----------------------                   ----------------------

                                       6
<PAGE>
 
                                  EXHIBIT "A"

                                MIT -- AMERITECH
                        EXCEPTED HOLDER LIMIT RESOLUTION

In accordance with Article 5 of the Company's Third Amended and Restated
Articles of Incorporation ("Articles"), the Directors hereby determine that,
effective upon the REIT Ownership Date (capitalized terms used in this
resolution that are not otherwise defined shall have the meanings given to those
terms in the Articles), and subject to adjustment as set forth below:

     1.   An Excepted Holder Limit of 100% of the number of outstanding shares
of Series B Convertible Preferred Stock shall apply to State Street Bank and
Trust Company, not individually but solely as Trustee (and any successor
Trustee) for Ameritech Pension Trust ("Ameritech");

     2.   An Excepted Holder Limit of 29% of the number of outstanding shares of
the Company's Common Stock shall apply to Ameritech (which shall include any
shares of Series B Convertible Preferred Stock owned or treated as owned due to
the convertibility of the Series B Convertible Preferred Stock); provided,
however, that in the event of a redemption, repurchase or cancellation of shares
of Common Stock or similar action on the part of the Company that results in the
number of shares of Common Stock then Beneficially or Constructively Owned by
Ameritech representing a greater percentage of the outstanding shares of Common
Stock, such Ownership Limit shall be increased proportionately;

     3.   As to each Person that is deemed to Beneficially Own or Constructively
Own an interest in shares of the Company that are held by Ameritech, that
Person's deemed indirect interest in the shares held by Ameritech shall be
disregarded for purposes of applying the Ownership Limit to that Person,
provided, however, if such a Person also Beneficially or Constructively Owns an
interest in other shares of the Company, the interest held through Ameritech
shall not be so disregarded; and

     4.   When Ameritech sells or otherwise transfers ownership of shares of the
Company outside of Ameritech, the Excepted Holder Limit then applicable to
Ameritech shall be reduced by the interest that is sold or transferred, but the
limit applicable to Ameritech shall not be reduced below the basic Ownership
Limit.

                                      A-1
<PAGE>
 
                                   EXHIBIT B

                              LETTER OF DIRECTION

                                                                          [DATE]

     The undersigned, being a duly elected and qualified _____________ of
Ameritech Pension Trust ("Ameritech") does hereby certify as follows:

          (1) The undersigned has received from Meridian Industrial Trust, Inc.,
a Maryland corporation ("MIT"), the Tenant List dated as of ___________ (the
"Most Recent Tenant List"), which has been delivered pursuant to Section 3.2(b)
of that certain Amended and Restated Excepted Holder Agreement dated September
30, 1997 by and between MIT and Ameritech (the "Excepted Holder Agreement"; all
capitalized terms used herein and not defined herein shall have the same
respective meanings as are ascribed to such terms in the Excepted Holder
Agreement).

          (2) Either of the following certifications is true and correct 
[**STRIKE INAPPLICABLE PARAGRAPH]:

               (A) Neither Ameritech nor any of its affiliates, individually or
in the aggregate, owns or Constructively Owns 10 percent or more the Equity
Stock of MIT.

               (B) I have reviewed (or have caused appropriate personnel or
agents of Ameritech to review) Ameritech's investments in each entity named as a
tenant in the Most Recent Tenant List in the manner contemplated by Section 1.2
of the Excepted Holder Agreement, and such review has not revealed (except as
specifically noted in Attachment 1 to this Certificate) any circumstances in
which Ameritech, would own or Constructively Own more than a 9.9 percent
interest in any such tenant.

     IN WITNESS WHEREOF, the undersigned has executed this Certificate and
Acknowledgment as of the date first written above.



                                            By:
                                               ---------------------------------
                                            Name:
                                                 -------------------------------
                                            Title:
                                                  ------------------------------


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