<PAGE>
U.S. SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.
FORM 3 OMB APPROVAL
-----------------------------
OMB NUMBER: 3235-0104
Expires: April 30, 1997
Estimated average burden
hours per response ...... 0.5
-----------------------------
INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES
Filed pursuant to Section 16(a) of the Securities and Exchange Act of 1934,
Section 17(a) of the Public Utility Holding Company Act of 1935 or
Section 30(f) of the Investment Company Act of 1940
(Print or Type Responses)
1. Name and Address of Reporting Person*
Berger Martin S.
- --------------------------------------------------------------------------------
(Last) (First) (Middle)
c/o Mack-Cali Realty Corporation
11 Commerce Drive
- --------------------------------------------------------------------------------
(Street)
Cranford NJ 07016
- --------------------------------------------------------------------------------
(City) (State) (Zip)
- --------------------------------------------------------------------------------
2. Date of Event Requiring Statement (Mo/Day/Yr)
12/11/97
- --------------------------------------------------------------------------------
3. IRS or Social Security Number of Reporting Person (Voluntary)
- --------------------------------------------------------------------------------
4. Issuer Name and Ticker or Trading Symbol
Mack-Cali Realty Corporation (CLI)
- --------------------------------------------------------------------------------
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
----- ------
Officer (give X Other (Specify
----- title below) ------ below)
Member of Advisory Board
----------------------------------
- --------------------------------------------------------------------------------
6. If Amendment, Date of Original (Month/Day/Year)
- --------------------------------------------------------------------------------
7. Individual or Joint/Group
Filing (Check Applicable Line)
__X__ Form filed by One Reporting Person
_____ Form filed by More than One Reporting Person
<TABLE>
<CAPTION>
Table 1 -- Non-Derivative Securities Beneficially Owned
1. Title of Security 2. Amount of Securities 3. Ownership Form: 4. Nature of Indirect Beneficial Ownership
(Instr. 4) Beneficially Owned Direct (D) or (Instr. 5)
(Instr. 4) Indirect (I)
(Instr. 5)
- -------------------------- --------------------------- ----------------- ------------------------------------------
<S> <C> <C> <C>
- -------------------------- --------------------------- ----------------- ------------------------------------------
- -------------------------- --------------------------- ----------------- ------------------------------------------
- -------------------------- --------------------------- ----------------- ------------------------------------------
- -------------------------- --------------------------- ----------------- ------------------------------------------
- -------------------------- --------------------------- ----------------- ------------------------------------------
- -------------------------- --------------------------- ----------------- ------------------------------------------
- -------------------------- --------------------------- ----------------- ------------------------------------------
- -------------------------- --------------------------- ----------------- ------------------------------------------
- -------------------------- --------------------------- ----------------- ------------------------------------------
- -------------------------- --------------------------- ----------------- ------------------------------------------
</TABLE>
Reminder: Report on a separate line for each class of securities beneficially
owned directly or indirectly.
If the form is filed by more than one reporting person, see instruction 5(b)(v).
(Over)
<PAGE>
FORM 3 (continued)
<TABLE>
<CAPTION>
Table II -- Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security 2. Date Exer- 3. Title and Amount of Securities 4. Conversion 5. Ownership 6. Nature of
cisable and Underlying Derivative Security or Exercise Form of Indirect
Expiration (Instr. 4) Price of Derivative Beneficial
Date Derivative Security: Ownership
(Month/Day/ Security Direct (D) (Instr. 5)
Year) or
------- -------- -------------------------------- Indirect (I)
Date Expira- Amount (Instr. 5)
Exer- tion or
cisable Date Title Number
of
Shares
- ------------------------------- ------- ---------- ---------------------- ------- -------------- --------------- -------------
<S> <C> <C> <C> <C> <C> <C> <C>
Units of Limited Partnership (1) Common Stock 516,322 D
Interests
- ------------------------------- ------- ---------- ---------------------- ------- -------------- --------------- -------------
Director Stock Options (2) 12/12/2007 Common Stock 10,000 $38.75 D
(Right to Buy)
- ------------------------------- ------- ---------- ---------------------- ------- -------------- --------------- -------------
Units of Limited Partnership (1) Common Stock 5,210 I MSB
Interests Management,
Inc.
- ------------------------------- ------- ---------- ---------------------- ------- -------------- --------------- -------------
</TABLE>
Explanation of Responses:
1) The units of Limited Partnership Interest ("Units") represent interests in
Mack-Cali Realty, L.P., a Delaware limited partnership, through which Mack-
Cali Realty Corporation conducts its real estate activities. The Units shall
be redeemable on a one-for-one basis for shares of Common Stock beginning on
January 31, 1998.
2) The options vest in five equal annual installments beginning on December 31,
1997.
**Intentional misstatements or omissions of facts constitute Federal Criminal
Violations.
See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
/s/ Martin S. Berger February 27, 1998
------------------------------- -----------------
**Signature of Reporting Person Date
Note: File three copies of this Form, one of which must be manually signed. If
space provided is insufficient, see Instruction 6 for procedure.
