To maintain its qualification as a REIT, not more than 50 percent in value of the outstanding shares of the Company may be owned, directly or indirectly, by five or fewer individuals at any time during the last half of any taxable year of the Company, other than its initial taxable year (defined to include certain entities), applying certain constructive ownership rules.  To help ensure that the Company will not fail this test, the Company's Charter provides for, among other things, certain restrictions on the transfer of common stock to prevent further concentration of stock ownership.  Moreover, to evidence compliance with these requirements, the Company must maintain records that disclose the actual ownership of its outstanding common stock and demands written statements each year from the holders of record of designated percentages of its common stock requesting the disclosure of the beneficial owners of such common stock.

PREFERRED STOCK

The Company has 10,000 shares of eight-percent Series C cumulative redeemable perpetual preferred stock issued and outstanding ("Series C Preferred Stock") in the form of 1,000,000 depositary shares ($25 stated value per depositary share).  Each depositary share represents1/100th of a share of Series C Preferred Stock.

The Series C Preferred Stock has preference rights with respect to liquidation and distributions over the common stock. Holders of the Series C Preferred Stock, except under certain limited conditions, will not be entitled to vote on any matters.  In the event of a cumulative arrearage equal to six quarterly dividends, holders of the Series C Preferred Stock will have the right to elect two additional members to serve on the Company's Board of Directors until dividends have been paid in full.  As of June 30, 2011, there were no dividends in arrears.  The Company may issue unlimited additional preferred stock ranking on a parity with the Series C Preferred Stock but may not issue any preferred stock senior to the Series C Preferred Stock without the consent of two-thirds of its holders.  The Series C Preferred Stock is essentially on an equivalent basis in priority with the preferred units of the Operating Partnership (see Note 15: Noncontrolling interests in subsidiaries).

The Series C Preferred Stock is redeemable at the option of the Company, in whole or in part, at $25 per depositary share, plus accrued and unpaid dividends.

COMMON STOCK

On February 18, 2011, the Company completed a public offering of 7,187,500 shares of common stock and used the net proceeds, which totaled approximately $227.4 million (after offering costs) primarily to repay borrowings under its unsecured revolving credit facility.

SHARE REPURCHASE PROGRAM

On September 12, 2007, the Board of Directors authorized an increase to the Company's repurchase program under which the Company was permitted to purchase up to $150 million of the Company's outstanding common stock ("Repurchase Program").  The Company has purchased and retired 2,893,630 shares of its outstanding common stock for an aggregate cost of approximately $104 million through June 30, 2011 under the Repurchase Program (none of which has occurred in 2010 and the six months ended June 30, 2011).  The Company has a remaining authorization to repurchase up to an additional $46 million of its outstanding common stock, which it may repurchase from time to time in open market transactions at prevailing prices or through privately negotiated transactions.

STOCK OPTION PLANS

In May 2004, the Company established the 2004 Incentive Stock Plan under which a total of 2,500,000 shares have been reserved for issuance.  No options have been granted through June 30, 2011 under this plan.  In September 2000, the Company established the 2000 Employee Stock Option Plan ("2000 Employee Plan") and the Amended and Restated 2000 Director Stock Option Plan ("2000 Director Plan").  In May 2002, shareholders of the Company approved amendments to both plans to increase the total shares reserved for issuance under both of the 2000 plans from 2,700,000 to 4,350,000 shares of the Company's common stock (from 2,500,000 to 4,000,000 shares under the 2000 Employee Plan and from 200,000 to 350,000 shares under the 2000 Director Plan).  In 1994, and as subsequently amended, the Company established the Mack-Cali Employee Stock Option Plan ("Employee Plan") and the Mack-Cali Director Stock Option Plan ("Director Plan") under which a total of 5,380,188 shares (subject to adjustment) of the Company's common stock had been reserved for issuance (4,980,188 shares under the Employee Plan and 400,000 shares under the Director Plan).  As the Employee Plan and Director Plan expired in 2004, and the 2000 Employee Plan and 2000 Director Plan expired in 2010, stock options may no longer be issued under those plans.  Stock options granted under the Employee Plan in 1994 and 1995 became exercisable over a three-year period.  Stock options granted under the 2000 Employee Plan and those options granted subsequent to 1995 under the Employee Plan became exercisable over a five-year period.  All stock options granted under both the 2000 Director Plan and Director Plan became exercisable in one year.  All options were granted at the fair market value at the dates of grant and have terms of ten years.  As of June 30, 2011 and December 31, 2010, the stock options outstanding, which were all exercisable, had a weighted average remaining contractual life of approximately 1.4 and 1.7 years, respectively.

STOCK COMPENSATION

The Company has issued stock awards ("Restricted Stock Awards") to officers, certain other employees, and nonemployee members of the Board of Directors of the Company, which allow the holders to each receive a certain amount of shares of the Company's common stock generally over a one to seven-year vesting period, of which 157,681 unvested shares were outstanding at June 30, 2011.  Of the outstanding Restricted Stock Awards issued to executive officers and senior management, 98,524 are contingent upon the Company meeting certain performance goals to be set by the Executive Compensation and Option Committee of the Board of Directors of the Company each year, with the remaining based on time and service. All Restricted Stock Awards provided to the officers and certain other employees were issued under the 2004 Incentive Stock Plan, 2000 Employee Plan and the Employee Plan. Restricted Stock Awards provided to directors were issued under the 2004 Incentive Stock Plan and the 2000 Director Plan.

Information regarding the Restricted Stock Awards is summarized below:

DEFERRED STOCK COMPENSATION PLAN FOR DIRECTORS

The Amended and Restated Deferred Compensation Plan for Directors, which commenced January 1, 1999, allows non-employee directors of the Company to elect to defer up to 100 percent of their annual retainer fee into deferred stock units.  The deferred stock units are convertible into an equal number of shares of common stock upon the directors' termination of service from the Board of Directors or a change in control of the Company, as defined in the plan.  Deferred stock units are credited to each director quarterly using the closing price of the Company's common stock on the applicable dividend record date for the respective quarter.  Each participating director's account is also credited for an equivalent amount of deferred stock units based on the dividend rate for each quarter.

During the six months ended June 30, 2011 and 2010, 6,385 and 6,311 deferred stock units were earned, respectively.  As of June 30, 2011 and December 31, 2010, there were 90,585 and 84,236 director stock units outstanding, respectively.

EARNINGS PER SHARE

Basic EPS excludes dilution and is computed by dividing net income available to common shareholders by the weighted average number of shares outstanding for the period.  Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock.

The following schedule reconciles the shares used in the basic EPS calculation to the shares used in the diluted EPS calculation:

Unvested restricted stock outstanding as of June 30, 2011 and 2010 were 157,681 and 216,802, respectively.

Dividends declared per common share for each of the three month periods ended June 30, 2011 and 2010 was $0.45 per share.  Dividends declared per common share for each of the six month periods ended June 30, 2011 and 2010 was $0.90 per share.