Document:

EX-10.4

Exhibit 10.4

ALTERRA CAPITAL HOLDINGS LIMITED

2000 STOCK INCENTIVE PLAN

1. Purpose. The purpose of the Alterra Capital Holdings Limited 2000 Stock Incentive
Plan (the “Plan”) is to enhance the ability of Alterra Capital Holdings Limited (the
“Company”) and its subsidiaries to attract employees, consultants and directors of
outstanding ability and to provide employees, consultants and directors with an interest in the
Company parallel to that of the Company’s shareholders.

2. Definitions.

(a) “Award” shall mean an award determined in accordance with the terms of the Plan.

(b) “Board” shall mean the Board of Directors of the Company.

(c) “Cause” shall mean (i) if a Participant is party to an employment agreement or
consulting or similar agreement with the Company and such agreement includes a definition of Cause,
the definition contained therein with respect to that Participant or (ii) if no such employment,
consulting or similar agreement exists, it shall mean (A) a Participant’s habitual drug or alcohol
use; (B) a Participant’s conviction by a court of competent jurisdiction, or a pleading of “no
contest” or guilty to a felony or the equivalent if outside the United States or any other crime
involving fraud, dishonesty or moral turpitude; (C) a Participant’s engaging in fraud, embezzlement
or any other misconduct with respect to the Company or its affiliates; (D) a Participant’s
violation of any written Company policies or rules regarding conduct; or (E) a Participant’s
failure or refusal to perform his duties for the Company or a Subsidiary.

(d) “Change in Control” shall mean (i) a sale, assignment, transfer or other
disposition of securities in one or more related transactions where the shareholders immediately
prior to such transaction cease to beneficially own more than 50% of the total combined voting
power of the Company’s outstanding securities; (ii) a merger, consolidation, reorganization or
similar corporate event in which the shareholders immediately prior to such transaction cease to
beneficially own more than 50% of the total combined voting power of the Company’s outstanding
securities or more than 50% or more of the total combined voting power of the resultant corporation
or entity if the Company does not survive such transaction; or (iii) the sale, transfer, assignment
or other disposition of all or substantially all of the Company’s property, assets or business to
one or more unrelated parties. Notwithstanding the foregoing, no Change in Control shall be deemed
to occur as a result of an Initial Public Offering of the Company or any necessary actions taken,
as determined by the Board, in order to effectuate such Initial Public Offering.

(e) “Code” shall mean the U.S. Internal Revenue Code of 1986, as amended.

(f) “Committee” shall mean (i) prior to an Initial Public Offering, and subject to the
provisions of Section 4 hereof, the entire Board and (ii) subsequent to an Initial Public Offering,
the Board or a committee of at least two members of the Board appointed by the Board to administer
the Plan and to perform the functions set forth herein and who are “non-employee directors” within
the meaning of Rule 16b-3 as promulgated under Section 16 of the Securities Exchange Act of 1934,
as amended (the “Exchange Act”) and who are also “outside directors” within the meaning of Section
162(m) of the Code.

(g) “Common Stock” shall mean the common stock, $1.00 par value per share, of the
Company.

(h) “Fair Market Value” per share as of a particular date shall mean the last reported
sale price (on the day immediately preceding such date) of the Common Stock on the New York Stock
Exchange (or any other exchange or national market system upon which price quotations for the
Company’s Common Stock is regularly available); provided, however, that prior to an Initial Public
Offering, Fair Market Value per share shall mean, as of any date, the fair market value on such
date as determined in good faith by the Board, but shall be at least book value per share.

(i) “Immediate Family Member” shall mean, except as otherwise determined by the
Committee, a Participant’s children, stepchildren, grandchildren, parents, stepparents,
grandparents, spouse, siblings, in-laws and persons related by reason of legal adoption.

(j) “Initial Public Offering” shall mean the consummation of the first public offering
of the Company’s Common Stock pursuant to a registration statement (other than on Form S-8 or
successor forms) filed with, and declared effective by the Securities and Exchange Commission.

(k) “Incentive Stock Option” shall mean a stock option which is intended to meet the
requirements of Section 422 of the Code.

(l) “Non-Employee Director” shall mean any member of the Board who is not an employee
of the Company or any Subsidiary or is not directly nominated by a shareholder of the Company.

(m) “Nonqualified Stock Option” shall mean a stock option which is not
intended to be an Incentive Stock Option.

(n) “Option” shall mean either an Incentive Stock Option or a Nonqualified Stock
Option.

(o) “Participant” shall mean an employee, consultant, service provider, or director of
the Company or its Subsidiaries and any other individual who, will become an employee, consultant,
service provider or director of the Company or its Subsidiaries after the date of grant, in either
case, who is selected to participate in the Plan in accordance with Section 5.

(p) “Subsidiary” shall mean any affiliate or subsidiary of the Company; provided,
that, with respect to Incentive Stock Options, such term shall mean any subsidiary of the Company
that is a corporation and which at the time qualifies as a “subsidiary corporation” within the
meaning of Section 424(f) of the Code.

3. Shares Subject to the Plan. Subject to adjustment in accordance with Section 17,
the total of the number of shares of Common Stock which shall be available for the grant of Awards
under the Plan shall not exceed 8,000,000. Shares of Common Stock used to pay the required Option
price or tax obligations, or shares of Common Stock not issued in connection with settlement of an
Award or that are used or withheld to satisfy tax obligations of the Participant shall,
notwithstanding anything herein to the contrary, not be available again for other Awards under the
Plan. Shares of Common Stock underlying Awards under the Plan that are forfeited, cancelled,
expire unexercised, or are settled in cash are available again for Awards under the Plan. Subject
to adjustment in accordance with Section 17, no Participant shall be granted, during any calendar
year, Options to purchase more than 1,000,000 shares of Common Stock. Common Stock available for
issue or distribution under the Plan shall be authorized and unissued shares or shares reacquired
by the Company in any manner.

4. Administration.

(a) The Plan shall be administered by the Board, unless and until the Board shall appoint a
Committee to administer the Plan. All references to the Committee hereinafter shall mean the Board
if no such Committee has been appointed.

(b) The Committee shall (i) approve the selection of Participants, (ii) determine the type of
Awards to be made to Participants, (iii) determine the number of shares of Common Stock subject to
Awards, (iv) determine the terms and conditions of any Award granted hereunder (including, but not
limited to, any restriction and forfeiture conditions on such Award) and (v) have the authority to
interpret the Plan, to establish, amend, and rescind any rules and regulations relating to the
Plan, to determine the terms and provisions of any agreements entered into hereunder, and to make
all other determinations necessary or advisable for the administration of the Plan. The Committee
may correct any defect, supply any omission or reconcile any inconsistency in the Plan or in any
Award in the manner and to the extent it shall deem desirable to carry it into effect.

(c) Any action of the Committee shall be final, conclusive and binding on all persons,
including the Company and its subsidiaries and shareholders, Participants and persons claiming
rights from or through a Participant.

(d) The Committee may delegate to officers or employees of the Company or any subsidiary, and
to service providers, the authority, subject to such terms as the Committee shall determine, to
perform administrative functions with respect to the Plan and Award agreements.

(e) Members of the Committee and any officer or employee of the Company or any subsidiary
acting at the direction of, or on behalf of, the Committee shall not be personally liable for any
action or determination taken or made in good faith with respect to the Plan, and shall, to the
extent permitted by law, be fully indemnified by the Company with respect to any such action or
determination.

5. Eligibility. Individuals eligible to receive Awards under the Plan shall be the
officers, other employees, consultants, service providers and directors of the Company and its
Subsidiaries and such other individuals who will become employees, consultants, service providers
or directors of the Company and its Subsidiaries after the date of grant, in either case, as
selected by the Committee. In addition, all Non-Employee Directors shall be eligible to receive
such Awards as the Committee may from time to time determine, as provided in Section 11 hereof.

6. Awards. Awards under the Plan may consist of Options, restricted Common Stock,
restricted Common Stock units, purchases, share awards or other awards based on the value of the
Common Stock. Awards shall be subject to the terms and conditions of the Plan and shall be
evidenced by an agreement containing such additional terms and conditions, not inconsistent with
the provisions of the Plan, as the Committee shall deem desirable.

7. Options. Options may be granted under the Plan in such form as the Committee may
from time to time approve pursuant to terms set forth in an Option agreement. The Committee may
alter or waive, at any time, any term or condition of an Option that is not mandatory under the
Plan.

(a) Types of Options and Limitation on Amount. Each Option agreement shall state
whether or not the Option will be treated as an Incentive Stock Option or a Nonqualified Stock
Option. Incentive Stock Options shall only be granted to employees of the Company and its
Subsidiaries. No employee shall be granted Incentive Stock Options which, when first exercisable
during any calendar year (combined with all other incentive stock option plans of the Company and
its Subsidiaries), will permit such employee to purchase stock that has an aggregate Fair Market
Value (determined as of the time the Option is granted) of more than $100,000; provided, that, any
Options granted in excess of such amount shall automatically be deemed to be Nonqualified Stock
Options.

(b) Option Price. The purchase price per share of the Common Stock purchasable under
an Option shall be determined by the Committee, but in the case of Incentive Stock Options, the
Option price will be not less than 100% of the Fair Market Value of the Common Stock on the date of
the grant of the Option and in the case of Incentive Stock Options granted to an employee owning
stock possessing more than 10% of the total combined voting power of all classes of stock of the
Company and its Subsidiaries (a “10% Shareholder”) the price per share specified in the agreement
relating to such Option shall not be less than 110% of the Fair Market Value per share of the
Common Stock on the date of grant.

(c) Option Period. The term of each Option shall be fixed by the Committee, but no
Option shall be exercisable after the expiration of 10 years from the date the Option is granted;
provided, however, that in the case of Incentive Stock Options granted to 10% Shareholders, the
term of such Option shall not exceed 5 years from the date of grant.

(d) Exercisability. Each Option shall vest at a rate determined by the Committee at
or subsequent to grant.

(e) Method of Exercise. Options may be exercised, in whole or in part, by giving
written notice of exercise to the Company specifying the number shares of Common Stock to be
purchased. Such notice shall be accompanied by the payment in full of the Option purchase price.
Such payment shall be made: (a) in cash, or (b) to the extent authorized by the Committee, by
surrender of shares of Common Stock owned by the holder of the Option for at least six (6) months
prior to exercise of the Options, or (c) following an Initial Public Offering, through simultaneous
sale through a broker of shares acquired on exercise, as permitted under Regulation T of the
Federal Reserve Board, or (d) through additional methods prescribed by the Committee, or (e) by a
combination of any such methods. A Participant’s subsequent transfer or disposition on any shares
acquired upon exercised on an Option shall be subject to any applicable U.S. or non-U.S. laws,
specifically securities law.

8. Restricted Stock. The Committee may from time to time award restricted Common
Stock under the Plan to eligible Participants. Restricted Common Stock may not be sold, assigned,
transferred or otherwise disposed of, or pledged or hypothecated as collateral for a loan or as
security for the performance of any obligation or for any other purpose, for such period (the
“Restricted Period”) as the Committee shall determine. The Committee may define the Restricted
Period in terms of the passage of time or in any other manner it deems appropriate. The Committee
may alter or waive at any time any term or condition of restricted Common Stock that is not
mandatory under the Plan.

Unless otherwise determined by the Committee, upon termination of a Participant’s service
relationship with the Company or any Subsidiary for any reason prior to the end of the Restricted
Period, the restricted Common Stock shall be forfeited and the Participant shall have no right with
respect to the Award.

Except as restricted under the terms of the Plan and any Award agreement, any Participant
awarded restricted Common Stock shall have all the rights of a shareholder.

If a share certificate is issued in respect of restricted Common Stock, the certificate shall
be registered in the name of the Participant, but shall be held by the Company for the account of
the Participant until the end of the Restricted Period.

The Committee may also award restricted Common Stock in the form of restricted Common Stock
units having a value equal to an identical number of shares of Common Stock. Payment of restricted
Common Stock units shall be made in shares of Common Stock or in cash or in a combination thereof
(based upon the Fair Market Value of the Common Stock on the day the Restricted Period expires),
all as determined by the Committee in its sole discretion.

9. Stock Purchases. The Committee may authorize eligible individuals to purchase
Common Stock in the Company at a price above, equal to or below the Fair Market Value of the shares
at the time of grant. Any such offer may be subject to the conditions and terms the Committee may
impose. The Company may make loans available to eligible Participants in connection with the
purchase of shares of Common Stock, as the Committee, in its discretion, may determine. The terms
and conditions of any such loans shall be determined by the Committee, in its sole discretion.

10. Stock Awards. Subject to such performance and employment conditions as the
Committee may determine, awards of shares of Common Stock or awards based on the value of the
shares of Common Stock may be granted either alone or in addition to other Awards granted under the
Plan. Any Awards under this Section 10 and any shares covered by any such Award may be forfeited
to the extent so provided in the Award agreement, as determined by the Committee. Payment of
shares of Common Stock awards made under this Section 10 which are based on the value of shares of
Common Stock may be made in shares or in cash or in a combination thereof (based upon the Fair
Market Value of the shares on the date of payment), all as determined by the Committee in its sole
discretion.

11. Non-Employee Director Awards.

(a) The Committee, or such other committee as the Board may designate, shall in its discretion
authorize the grant of Awards to Non-Employee Directors in such amounts and subject to such terms
and conditions as the Committee, or such other designated committee, shall from time to time
determine; provided that the granting of any Option hereunder shall be subject to Section 11(B).

(b) The purchase price for each Option granted under this Section 11 to a Non-Employee
Director shall be the Fair Market Value of the Common Stock on the date of grant of the Option.

12. Change in Control. Upon the occurrence of a Change in Control, all Options shall
automatically become vested and exercisable in full and all restrictions, if any, on any Common
Stock awards, restricted Common Stock, or restricted Common Stock units granted hereunder shall
automatically lapse. The Committee may, in its discretion, include such further provisions and
limitations in any agreement documenting such Awards as it may deem equitable and in the best
interests of the Company.

13. Withholding. The Company shall have the right to deduct from any payment to be
made pursuant to the Plan the amount of any taxes required by law to be withheld therefrom, or to
require a Participant to pay to the Company in cash such amount required to be withheld prior to
the issuance or delivery of any shares of Common Stock or the payment of cash under the Plan. At
the discretion of the Committee, such taxes may be paid by (a) delivering previously owned shares
of Common Stock or (b) having the Company retain shares which would otherwise be delivered upon
exercise or payment of Awards or (c) any combination of a cash payment or the methods set forth in
(a) and (b) above. For purposes of (a) and (b) above, shares of Common Stock shall be valued at
their Fair Market Value. If and to the extent authorized by the Committee, the Company may, upon
election by a Participant, withhold from any distribution of shares hereunder, shares of Common
Stock with a Fair Market Value in excess of the Participant’s required minimum withholding
obligation.

14. Nontransferability, Beneficiaries. Unless otherwise determined by the Committee
with respect to the transferability of Nonqualified Stock Options by a Participant to his Immediate
Family Members (or to trusts or partnerships or limited liability companies established for such
family members), no Award shall be assignable or transferable by the Participant, otherwise than by
will or the laws of descent and distribution or pursuant to a beneficiary designation, and Options
shall be exercisable, during the Participant’s lifetime, only by the Participant (or by the
Participant’s legal representatives in the event of the Participant’s incapacity). Each
Participant may designate a beneficiary to exercise any Option held by the Participant at the time
of the Participant’s death or to be assigned any other Award outstanding at the time of the
Participant’s death. If no beneficiary has been named by a deceased Participant, any Award held by
the Participant at the time of death shall be transferred as provided in his will or by the laws of
descent and distribution.

15. No Right to Employment. Nothing contained in the Plan or in any Award under the
Plan shall confer upon any employee any right with respect to the continuation of employment with
the Company or any of its Subsidiaries, or interfere in any way with the right of the Company to
terminate his or her employment at any time. Nothing contained in the Plan shall confer upon any
employee or other person any claim or right to any Award under the Plan.

16. Governmental Compliance. Each Award under the Plan shall be subject to the
requirement that if at any time the Committee shall determine that the listing, registration or
qualification of any shares issuable or deliverable thereunder upon any securities exchange or
under any U.S. or non-U.S. law, or the consent or approval of any governmental regulatory body, is
necessary or desirable as a condition thereof, or in connection therewith, no such grant or award
may be exercised or shares issued or delivered unless such listing, registration, qualification,
consent or approval shall have been effected or obtained free of any conditions not acceptable to
the Committee.

17. Adjustments. In the event of any share dividend or split, recapitalization,
merger, consolidation, spinoff, combination or exchange of shares or other corporate change or
event, or any distribution to holders of the shares of Common Stock other than regular cash
dividends, that results in a change in the outstanding shares of Common Stock, the number or kind
of shares of Common Stock available for Options and Awards under the Plan shall be adjusted by the
Committee as it shall in its sole discretion deem equitable and the number and kind of shares of
Common Stock subject to any outstanding Awards granted under the Plan and the purchase price
thereof shall be adjusted by the Committee as it shall in its sole discretion deem equitable to
preserve the value of such Awards.

18. Award Agreement. Each Award under the Plan shall be evidenced by an agreement
setting forth the terms and conditions, as determined by the Committee, which shall apply to such
Award, in addition to the terms and conditions specified in the Plan.

19. Amendment. The Board may amend, suspend or terminate the Plan or any portion
thereof at any time, provided that (a) no amendment shall be made without shareholder approval if
such approval is necessary to comply with any applicable law, regulation or stock exchange rule and
(b) the Committee may, to the extent consistent with the terms of any applicable Award agreement,
waive any conditions or rights under, amend any terms of, or alter, suspend, discontinue, cancel or
terminate any Award theretofore granted or the associated Award agreement, prospectively or
retroactively; provided, that, any such waiver, amendment, alteration, suspension, discontinuance,
cancellation or termination that would materially and adversely affect the rights of any
Participant with respect to any Award theretofore granted shall not to that extent be effective
without the consent of the affected Participant; provided, further, that without shareholder
approval, except as otherwise permitted under Section 17 of the Plan, (i) no amendment or
modification may reduce the Option price of any Option, (ii) the Committee may not cancel any
outstanding Option and replace it with a new Option, another Award or cash and (iii) the Committee
may not take any other action that is considered a “repricing” for purposes of the shareholder
approval rules of the applicable securities exchange or inter-dealer quotation system on which the
Common Stock is listed or quoted. If the Board so delegates, the Committee may amend or modify the
Plan, except to the extent such amendment involves increasing the maximum number of shares of
Common Stock available for issuance under the Plan.

20. General Provisions.

(a) The Committee may require each Participant purchasing or acquiring shares pursuant to an
Award under the Plan to represent to and agree with the Company in writing that such Participant is
acquiring the shares for investment and without a view to distribution thereof.

(b) All certificates for shares of Common Stock delivered under the Plan pursuant to any Award
shall be subject to such stock-transfer orders and other restrictions as the Committee may deem
advisable under the rules, regulations, and other requirements of the Securities and Exchange
Commission, any stock exchange upon which the shares of Common Stock are then listed, and any
applicable U.S. or non-U.S. securities law, and the Committee may cause a legend or legends to be
put on any such certificates to make appropriate reference to such restrictions. If the Committee
determines that the issuance of shares of Common Stock hereunder is not in compliance with, or
subject to an exemption from, any applicable U.S. or non-U.S. securities laws, such shares shall
not be issued until such time as the Committee determines that the issuance is permissible.

(c) Following an Initial Public Offering, it is the intent of the Company that the Plan
satisfy, and be interpreted in a manner that satisfies, the applicable requirements of Rule 16b-3
as promulgated under Section 16 of the Exchange Act so that Participants will be entitled to the
benefit of Rule 16b-3, or any other rule promulgated under Section 16 of the Exchange Act, and will
not be subject to short-swing liability under Section 16. Accordingly, if the operation of any
provision of the Plan would conflict with the intent expressed in this Section 20(c), such
provision to the extent possible shall be interpreted and/or deemed amended so as to avoid such
conflict.

(d) Except as otherwise provided by the Committee in the applicable grant or Award agreement,
a Participant shall have no rights as a shareholder with respect to any shares subject to an Award
until a certificate or certificates evidencing shares shall have been issued to the Participant
and, subject to Section 17, no adjustment shall be made for dividends or distributions or other
rights in respect of any share for which the record date is prior to the date on which Participant
shall become the holder of record thereof.

(e) Except as otherwise provided in an Award agreement, the laws of Bermuda shall apply to all
Awards and interpretations under the Plan.

(f) Where the context requires, words in any gender shall include any other gender.

(g) Headings of Sections are inserted for convenience and reference, they do not constitute
any part of this plan.

21. Term of Plan. Subject to earlier termination pursuant to Section 19, the Plan
shall have a term of 10 years from its Effective Date.

22. Effective Date; Approval of Shareholders. The Plan is effective upon shareholder
approval at the Company’s first annual meeting of shareholders (“Effective Date”).

23. Reloads. The Committee may provide, at or subsequent to the date of grant of any
Option (including without limitation Nonqualified Stock Options under Section 11 hereof), that in
the event a Participant pays the Option price of such option (in whole or in part) or satisfies
his/her tax withholding obligations (in whole or in part) by tendering, Common Stock owned by the
Optionee or having withheld Common Stock otherwise issuable upon exercise, such Participant shall
automatically be granted a reload option for the number of shares of Common Stock used to pay the
exercise price or otherwise withheld. The reload option shall be subject to the terms and
conditions that the Committee will in its discretion provide, consistent with the terms of the
Plan. The Committee may provide in any award agreement that if a reload option is granted as set
forth above, one or more successive reload options will be automatically granted to an Optionee who
pays all or part of the exercise price or satisfies his/her tax withholding obligations (in whole
or in part) of any such reload option by tendering Common Stock owned by the Participant or having
withheld Common Stock otherwise issuable upon exercise of such reload option.

24. Shareholders Agreement. Prior to an Initial Public Offering, it is a condition to
the exercise of any Option granted hereunder or any other Award granted hereunder that the
Participant and any of his or her permitted transferees agree to be bound by the terms and
conditions of the Company’s shareholders agreement as it may be amended from time to time (the
“Shareholders Agreement”). In any event, any shares of Common Stock acquired with respect
to any Award made hereunder shall be subject to the provisions of the Shareholders Agreement
regarding restrictions on transfer and the right of certain shareholders to compel sale of shares
of Common Stock. A copy of the Shareholders Agreement will be made available upon request.EX-10.1

FORM OF

AMENDED AND RESTATED INDEMNIFICATION AGREEMENT

THIS AMENDED AND RESTATED INDEMNIFICATION AGREEMENT is made and entered into this
     day of      , 2010 (“Agreement”), by and between Healthcare Trust of America,
Inc., a Maryland corporation (the “Company”), and      (“Indemnitee”).

WHEREAS, at the request of the Company, Indemnitee currently serves as a director or officer
of the Company and may, therefore, be subjected to claims, suits or proceedings arising as a result
of his or her service; and

WHEREAS, as an inducement to Indemnitee to continue to serve as such director or officer, the
Company has agreed to indemnify and to advance expenses and costs incurred by Indemnitee in
connection with any such claims, suits or proceedings, subject to certain limitations set forth
herein; and

WHEREAS, the parties by this Agreement desire to set forth their agreement regarding
indemnification and advance of expenses;

NOW, THEREFORE, in consideration of the premises and the covenants contained herein, the
Company and Indemnitee do hereby covenant and agree as follows:

Section 1. Definitions. For purposes of this Agreement:

(a) “Applicable Legal Rate” means a fixed rate of interest equal to the applicable federal
rate for mid-term debt instruments as of the day that it is determined that Indemnitee must repay
any advanced expenses.

(b) “Change in Control” means a change in control of the Company occurring after the Effective
Date of a nature that would be required to be reported in response to Item 6(e) of Schedule 14A of
Regulation 14A (or in response to any similar item on any similar schedule or form) promulgated
under the Securities Exchange Act of 1934, as amended (the “Act”), whether or not the Company is
then subject to such reporting requirement; provided, however, that, without limitation, such a
Change in Control shall be deemed to have occurred if after the Effective Date (i) any “person” (as
such term is used in Sections 13(d) and 14(d) of the Act) is or becomes the “beneficial owner” (as
defined in Rule 13d-3 under the Act), directly or indirectly, of securities of the Company
representing 15% or more of the combined voting power of all of the Company’s then outstanding
securities entitled to vote generally in the election of directors without the prior approval of at
least two-thirds of the members of the Board of Directors in office immediately prior to such
person’s attaining such percentage interest; (ii) the Company is a party to a merger,
consolidation, sale of assets, plan of liquidation or other reorganization not approved by at least
two-thirds of the members of the Board of Directors then in office, as a consequence of which
members of the Board of Directors in office immediately prior to such transaction or event
constitute less than a majority of the Board of Directors thereafter; or (iii) at any time, a
majority of the members of the Board of Directors are not individuals (A) who were directors as of
the Effective Date or (B) whose election by the Board of Directors or nomination for election by
the Company’s stockholders was approved by the affirmative vote of at least two-thirds of the
directors then in office who were directors as of the Effective Date or whose election for
nomination for election was previously so approved.

(c) “Corporate Status” means the status of a person as a present or former director, officer,
employee or agent of the Company or as a director, trustee, officer, partner, manager, managing
member, fiduciary, employee or agent of any other foreign or domestic corporation, partnership,
limited liability company, joint venture, trust, employee benefit plan or other enterprise that
such person is or was serving in such capacity at the request of the Company. As a clarification
and without limiting the circumstances in which Indemnitee may be serving at the request of the
Company, service by Indemnitee shall be deemed to be at the request of the Company if Indemnitee
serves or served as a director, trustee, officer, partner, manager, managing member, fiduciary,
employee or agent of any corporation, partnership, limited liability company, joint venture, trust,
employee benefit plan or other enterprise (i) of which a majority of the voting power or equity
interest is owned directly or indirectly by the Company or (ii) the management of which is
controlled directly or indirectly by the Company.

(d) “Disinterested Director” means a director of the Company who is not and was not a party to
the Proceeding in respect of which indemnification and/or advance of Expenses is sought by
Indemnitee.

(e) “Effective Date” means the date of the Original Agreement.

(f) “Expenses” means any and all reasonable and out-of-pocket attorneys’ fees and costs,
retainers, court costs, transcript costs, fees of experts, witness fees, travel expenses,
duplicating costs, printing and binding costs, telephone charges, postage, delivery service fees,
federal, state, local or foreign taxes imposed on Indemnitee as a result of the actual or deemed
receipt of any payments under this Agreement, ERISA excise taxes and penalties and any other
disbursements or expenses incurred in connection with prosecuting, defending, preparing to
prosecute or defend, investigating, being or preparing to be a witness in or otherwise
participating in a Proceeding. Expenses shall also include Expenses incurred in connection with
any appeal resulting from any Proceeding including, without limitation, the premium for, security
for and other costs relating to any cost bond supersedeas bond or other appeal bond or its
equivalent.

(g) “Independent Counsel” means a law firm, or a member of a law firm, that is experienced in
matters of corporation law and neither is, nor in the past five years has been, retained to
represent: (i) the Company or Indemnitee in any matter material to either such party (other than
with respect to matters concerning Indemnitee under this Agreement or of other indemnitees under
similar indemnification agreements), or (ii) any other party to or participant or witness in the
Proceeding giving rise to a claim for indemnification or advance of Expenses hereunder.
Notwithstanding the foregoing, the term “Independent Counsel” shall not include any person who,
under the applicable standards of professional conduct then prevailing, would have a conflict of
interest in representing either the Company or Indemnitee in an action to determine Indemnitee’s
rights under this Agreement.

(h) “Listing” means the listing of a class of common stock of the Company on (i) the New York
Stock Exchange, the American Stock Exchange, or the Global Market or the Global Select Market of
the Nasdaq Stock Market (or any successor to such entities) or (ii) a national securities exchange
(or tier or segment thereof) that has listing standards that the Securities and Exchange Commission
has determined by rule are substantially similar to the listing standards applicable to securities
described in Section 18(b)(1)(A) of the Securities Act of 1933, as amended.

(i) “Original Agreement” means the Indemnification Agreement, dated     , by and
between the Company and Indemnitee.

(j) “Proceeding” means any threatened, pending or completed action, suit, arbitration,
alternate dispute resolution mechanism, investigation, inquiry, administrative hearing or any other
proceeding, whether brought by or in the right of the Company or otherwise and whether of a civil
(including intentional or unintentional tort claims), criminal, administrative or investigative
(formal or informal) nature, including any appeal therefrom, except one pending or completed on or
before the Effective Date, unless otherwise specifically agreed in writing by the Company and
Indemnitee. If Indemnitee reasonably believes that a given situation may lead to or culminate in
the institution of a Proceeding, such situation shall also be considered a Proceeding.

Section 2. Services by Indemnitee. Indemnitee will serve as a director or officer of
the Company. However, this Agreement shall not impose any independent obligation on Indemnitee or
the Company to continue Indemnitee’s service to the Company. This Agreement shall not be deemed an
employment contract between the Company (or any other entity) and Indemnitee.

Section 3. Indemnification — General. Subject to the limitations in Section 7, the
Company shall indemnify, and advance Expenses to, Indemnitee (a) as provided in this Agreement and
(b) as otherwise permitted by Maryland law in effect on the Effective Date and as amended from time
to time; provided, however, that no change in Maryland law shall have the effect of reducing the
benefits available to Indemnitee hereunder based on Maryland law as in effect on the Effective
Date. Subject to the limitations in Section 7, the rights of Indemnitee provided in this Section 3
shall include, without limitation, the rights set forth in the other sections of this Agreement,
including any additional indemnification permitted by Section 2-418(g) of the Maryland General
Corporation Law (the “MGCL”).

Section 4. Rights to Indemnification. Subject to the limitations in Section 7, if, by
reason of Indemnitee’s Corporate Status, Indemnitee is, or is threatened to be, made a party to any
Proceeding, the Company shall indemnify Indemnitee against all judgments, penalties, fines and
amounts paid in settlement and all Expenses actually and reasonably incurred by Indemnitee or on
Indemnitee’s behalf in connection with any such Proceeding unless it is established by clear and
convincing evidence that (i) the act or omission of Indemnitee was material to the matter giving
rise to the Proceeding and (a) was committed in bad faith or (b) was the result of active and
deliberate dishonesty, (ii) Indemnitee actually received an improper personal benefit in money,
property or services or (iii) in the case of any criminal Proceeding, Indemnitee had reasonable
cause to believe that his or her conduct was unlawful.

Section 5. Court-Ordered Indemnification. Subject to the limitations in Section 7(a)
and (b), a court of appropriate jurisdiction, upon application of Indemnitee and such notice as the
court shall require, may order indemnification of Indemnitee in the following circumstances:

(a) if such court determines that Indemnitee is entitled to reimbursement under
Section 2-418(d)(1) of the MGCL, the court shall order indemnification, in which case Indemnitee
shall be entitled to recover the Expenses of securing such reimbursement; or

(b) if such court determines that Indemnitee is fairly and reasonably entitled to
indemnification in view of all the relevant circumstances, whether or not Indemnitee (i) has met
the standards of conduct set forth in Section 2-418(b) of the MGCL or (ii) has been adjudged liable
for receipt of an improper personal benefit under Section 2-418(c) of the MGCL, the court may order
such indemnification as the court shall deem proper. However, indemnification with respect to any
Proceeding by or in the right of the Company or in which liability shall have been adjudged in the
circumstances described in Section 2-418(c) of the MGCL shall be limited to Expenses.

Section 6. Indemnification for Expenses of an Indemnitee Who is Wholly or Partly
Successful. Subject to the limitations in Section 7, to the extent that Indemnitee was or is,
by reason of his or her Corporate Status, made a party to (or otherwise becomes a participant in)
any Proceeding and is successful, on the merits or otherwise, in the defense of such Proceeding, he
or she shall be indemnified for all Expenses actually and reasonably incurred by him or her or on
his or her behalf in connection therewith. If Indemnitee is not wholly successful in such
Proceeding but is successful, on the merits or otherwise, as to one or more but less than all
claims, issues or matters in such Proceeding, the Company shall indemnify Indemnitee under this
Section 6 for all Expenses actually and reasonably incurred by him or her or on his or her behalf
in connection with each such claim, issue or matter, allocated on a reasonable and proportionate
basis. For purposes of this Section and without limitation, the termination of any claim, issue or
matter in such a Proceeding by dismissal, with or without prejudice, shall be deemed to be a
successful result as to such claim, issue or matter.

Section 7. Limitations on Indemnification. Notwithstanding any other provision of this
Agreement (other than Section 5), Indemnitee shall not be entitled to:

(a) indemnification prior to Listing for any loss or liability unless all of the following
conditions are met: (i) Indemnitee has determined, in good faith, that the course of conduct that
caused the loss or liability was in the best interests of the Company; (ii) Indemnitee was acting
on behalf of or performing services for the Company; (iii) such loss or liability was not the
result of negligence or misconduct, or, if Indemnitee is an independent director, gross negligence
or willful misconduct; and (iv) such indemnification is recoverable only out of the Company’s net
assets and not from the Company’s stockholders;

(b) indemnification prior to Listing for any loss or liability arising from an alleged
violation of federal or state securities laws unless one or more of the following conditions are
met: (i) there has been a successful adjudication on the merits of each count involving alleged
material securities law violations as to Indemnitee; (ii) such claims have been dismissed with
prejudice on the merits by a court of competent jurisdiction as to Indemnitee; or (iii) a court of
competent jurisdiction approves a settlement of the claims against Indemnitee and finds that
indemnification of the settlement and the related costs should be made, and the court considering
the request for indemnification has been advised of the position of the Securities and Exchange
Commission and of the published position of any state securities regulatory authority in which
securities of the Company were offered or sold as to indemnification for violations of securities
laws;

(c) indemnification hereunder if the Proceeding was one by or in the right of the Company and
Indemnitee is adjudged to be liable to the Company;

(d) indemnification hereunder if Indemnitee is adjudged to be liable on the basis that
personal benefit was improperly received in any Proceeding charging improper personal benefit to
Indemnitee, whether or not involving action in the Indemnitee’s Corporate Status; or

(e) indemnification or advance of Expenses hereunder if the Proceeding was brought by
Indemnitee, unless: (i) the Proceeding was brought to enforce indemnification under this Agreement,
and then only to the extent in accordance with and as authorized by Section 12 of this Agreement,
or (ii) the Company’s charter or Bylaws, a resolution of the stockholders entitled to vote
generally in the election of directors or of the Board of Directors or an agreement approved by the
Board of Directors to which the Company is a party expressly provide otherwise.

Section 8. Advance of Expenses for an Indemnitee. If, by reason of Indemnitee’s
Corporate Status, Indemnitee is, or is threatened to be, made a party to any Proceeding, the
Company shall, without requiring a preliminary determination of Indemnitee’s ultimate entitlement
to indemnification hereunder and except as set forth in the following sentence, advance all
reasonable Expenses incurred by or on behalf of Indemnitee in connection with such Proceeding
within ten days after the receipt by the Company of a statement or statements requesting such
advance or advances from time to time, whether prior to or after final disposition of such
Proceeding. Prior to Listing, the Company may not advance Expenses incurred by or on behalf of
Indemnitee in connection with a Proceeding unless (a) such Proceeding is initiated by a third party
who is not a stockholder of the Company or, if such Proceeding is initiated by a stockholder of the
Company acting in his or her capacity as such, a court of competent jurisdiction specifically
approves such advancement, and (b) such Proceeding relates to acts or omissions with respect to the
performance of duties or services on behalf of the Company. The statement or statements requesting
advance or advances shall reasonably evidence the Expenses incurred by Indemnitee and shall include
or be preceded or accompanied by a written affirmation by Indemnitee of Indemnitee’s good faith
belief that the standard of conduct necessary for indemnification by the Company as authorized by
law and by this Agreement has been met and a written undertaking by or on behalf of Indemnitee, in
substantially the form attached hereto as Exhibit A or in such form as may be required
under applicable law as in effect at the time of the execution thereof, to reimburse the portion of
any Expenses advanced to Indemnitee, together if prior to Listing with the Applicable Legal Rate of
interest thereon, relating to claims, issues or matters in the Proceeding as to which it shall
ultimately be established, by clear and convincing evidence, that the standard of conduct has not
been met by Indemnitee and which have not been successfully resolved as described in Section 6 of
this Agreement. To the extent that Expenses advanced to Indemnitee do not relate to a specific
claim, issue or matter in the Proceeding, such Expenses shall be allocated on a reasonable and
proportionate basis. The undertaking required by this Section 8 shall be an unlimited general
obligation by or on behalf of Indemnitee and shall be accepted without reference to Indemnitee’s
financial ability to repay such advanced Expenses and without any requirement to post security
therefor.

Section 9. Indemnification and Advance of Expenses as a Witness or Other Participant.
Subject to the limitations in Section 7, to the extent that Indemnitee is or may be, by reason of
Indemnitee’s Corporate Status, made a witness or otherwise asked to participate in any Proceeding,
whether instituted by the Company or any other party, and to which Indemnitee is not a party,
Indemnitee shall be advanced all reasonable Expenses and indemnified against all Expenses actually
and reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection therewith within ten
days after the receipt by the Company of a statement or statements requesting any such advance or
indemnification from time to time, whether prior to or after final disposition of such Proceeding.
Such statement or statements shall reasonably evidence the Expenses incurred by Indemnitee

Section 10. Procedure for Determination of Entitlement to Indemnification.

(a) To obtain indemnification under this Agreement, Indemnitee shall submit to the Company a
written request, including therein or therewith such documentation and information as is reasonably
available to Indemnitee and is reasonably necessary to determine whether and to what extent
Indemnitee is entitled to indemnification. Indemnitee may submit one or more such requests from
time to time and at such time(s) as Indemnitee deems appropriate in Indemnitee’s sole discretion.
The officer of the Company receiving any such request from Indemnitee shall, promptly upon receipt
of such a request for indemnification, advise the Board of Directors in writing that Indemnitee has
requested indemnification.

(b) Upon written request by Indemnitee for indemnification pursuant to Section 10(a) above, a
determination, if required by applicable law, with respect to Indemnitee’s entitlement thereto
shall promptly be made in the specific case: (i) if a Change in Control shall have occurred, by
Independent Counsel, in a written opinion to the Board of Directors, a copy of which shall be
delivered to Indemnitee, which Independent Counsel shall be selected by Indemnitee and approved by
the Board of Directors in accordance with Section 2-418(e)(2)(ii) of the MGCL, which approval shall
not be unreasonably withheld; or (ii) if a Change in Control shall not have occurred, (A) by the
Board of Directors by a majority vote of a quorum consisting of Disinterested Directors or, if such
a quorum cannot be obtained, then by a majority vote of a duly authorized committee of the Board of
Directors consisting solely of one or more Disinterested Directors, (B) if Independent Counsel has
been selected by the Board of Directors in accordance with Section 2-418(e)(2)(ii) of the MGCL and
approved by Indemnitee, which approval shall not be unreasonably withheld, by Independent Counsel,
in a written opinion to the Board of Directors, a copy of which shall be delivered to Indemnitee or
(C) if so directed by a majority of the members of the Board of Directors, by the stockholders of
the Company. If it is so determined that Indemnitee is entitled to indemnification, payment to
Indemnitee shall be made within ten days after such determination. Indemnitee shall cooperate with
the person, persons or entity making such determination with respect to Indemnitee’s entitlement to
indemnification, including providing to such person, persons or entity upon reasonable advance
request any documentation or information which is not privileged or otherwise protected from
disclosure and which is reasonably available to Indemnitee and reasonably necessary to such
determination in the discretion of the Board of Directors or Independent Counsel if retained
pursuant to clause (ii)(B) of this Section 10(b). Any Expenses incurred by Indemnitee in so
cooperating with the person, persons or entity making such determination shall be borne by the
Company (irrespective of the determination as to Indemnitee’s entitlement to indemnification) and
the Company shall indemnify and hold Indemnitee harmless therefrom.

(c) The Company shall pay the reasonable fees and expenses of Independent Counsel, if one is
appointed.

Section 11. Presumptions and Effect of Certain Proceedings.

(a) In making any determination with respect to entitlement to indemnification hereunder, the
person or persons or entity making such determination shall presume that Indemnitee is entitled to
indemnification under this Agreement if Indemnitee has submitted a request for indemnification in
accordance with Section 10(a) of this Agreement, and the Company shall have the burden of proof to
overcome that presumption in connection with the making of any determination contrary to that
presumption.

(b) The termination of any Proceeding or of any claim, issue or matter therein, by judgment,
order, settlement or conviction, upon a plea of nolo contendere or its equivalent,
or entry of an order of probation prior to judgment, does not create a presumption that Indemnitee
did not meet the requisite standard of conduct described herein for indemnification.

(c) The knowledge and/or actions, or failure to act, of any other director, officer, employee
or agent of the Company or any other director, trustee, officer, partner, manager, managing member,
fiduciary, employee or agent of any other foreign or domestic corporation, partnership, limited
liability company, joint venture, trust, employee benefit plan or other enterprise shall not be
imputed to Indemnitee for purposes of determining any other right to indemnification under this
Agreement.

Section 12. Remedies of Indemnitee.

(a) If (i) a determination is made pursuant to Section 10(b) of this Agreement that Indemnitee
is not entitled to indemnification under this Agreement, (ii) advance of Expenses is not timely
made pursuant to Section 8 or 9 of this Agreement, (iii) no determination of entitlement to
indemnification shall have been made pursuant to Section 10(b) of this Agreement within 60 days
after receipt by the Company of the request for indemnification, (iv) payment of indemnification is
not made pursuant to Section 6 or 9 of this Agreement within ten days after receipt by the Company
of a written request therefor, or (v) payment of indemnification pursuant to any other section of
this Agreement or the charter or Bylaws of the Company is not made within ten days after a
determination has been made that Indemnitee is entitled to indemnification, Indemnitee shall be
entitled to an adjudication in an appropriate court located in the State of Maryland, or in any
other court of competent jurisdiction, of his or her entitlement to such indemnification or advance
of Expenses. Alternatively, Indemnitee, at his or her option, may seek an award in arbitration to
be conducted by a single arbitrator pursuant to the Commercial Arbitration Rules of the American
Arbitration Association. Indemnitee shall commence a proceeding seeking an adjudication or an award
in arbitration within 180 days following the date on which Indemnitee first has the right to
commence such proceeding pursuant to this Section 12(a); provided, however, that the foregoing
clause shall not apply to a proceeding brought by Indemnitee to enforce his or her rights under
Section 6 of this Agreement. Except as set forth herein, the provisions of Maryland law (without
regard to its conflicts of laws rules) shall apply to any such arbitration. The Company shall not
oppose Indemnitee’s right to seek any such adjudication or award in arbitration.

(b) In any judicial proceeding or arbitration commenced pursuant to this Section 12,
Indemnitee shall be presumed to be entitled to indemnification or advance of Expenses, as the case
may be, under this Agreement and the Company shall have the burden of proving that Indemnitee is
not entitled to indemnification or advance of Expenses, as the case may be. If Indemnitee
commences a judicial proceeding or arbitration pursuant to this Section 12, Indemnitee shall not be
required to reimburse the Company for any advances pursuant to Section 8 of this Agreement until a
final determination is made with respect to Indemnitee’s entitlement to indemnification (as to
which all rights of appeal have been exhausted or lapsed). The Company shall, to the fullest
extent not prohibited by law, be precluded from asserting in any judicial proceeding or arbitration
commenced pursuant to this Section 12 that the procedures and presumptions of this Agreement are
not valid, binding and enforceable and shall stipulate in any such court or before any such
arbitrator that the Company is bound by all of the provisions of this Agreement.

(c) If a determination shall have been made pursuant to Section 10(b) of this Agreement that
Indemnitee is entitled to indemnification, the Company shall be bound by such determination in any
judicial proceeding or arbitration commenced pursuant to this Section 12, absent a misstatement by
Indemnitee of a material fact, or an omission of a material fact necessary to make Indemnitee’s
statement not materially misleading, in connection with the request for indemnification.

(d) In the event that Indemnitee is successful in seeking, pursuant to this Section 12, a
judicial adjudication of or an award in arbitration to enforce his or her rights under, or to
recover damages for breach of, this Agreement, Indemnitee shall be entitled to recover from the
Company, and shall be indemnified by the Company for, any and all Expenses actually and reasonably
incurred by him or her in such judicial adjudication or arbitration. If it shall be determined in
such judicial adjudication or arbitration that Indemnitee is entitled to receive part but not all
of the indemnification or advance of Expenses sought, the Expenses incurred by Indemnitee in
connection with such judicial adjudication or arbitration shall be appropriately prorated.

(e) Interest shall be paid by the Company to Indemnitee at the maximum rate allowed to be
charged for judgments under the Courts and Judicial Proceedings Article of the Annotated Code of
Maryland for amounts which the Company pays or is obligated to pay for the period (i) commencing
with either the tenth day after the date on which the Company was requested to advance Expenses in
accordance with Section 8 or 9 of this Agreement or the 60th day after the date on which
the Company was requested to make the determination of entitlement to indemnification under Section
10(b) of this Agreement, as applicable, and (ii) ending on the date such payment is made to
Indemnitee by the Company.

Section 13. Defense of the Underlying Proceeding.

(a) Indemnitee shall notify the Company promptly in writing upon being served with any
summons, citation, subpoena, complaint, indictment, request or other document relating to any
Proceeding which may result in the right to indemnification or the advance of Expenses hereunder
and shall include with such notice a description of the nature of the Proceeding and a summary of
the facts underlying the Proceeding. The failure to give any such notice shall not disqualify
Indemnitee from the right, or otherwise affect in any manner any right of Indemnitee, to
indemnification or the advance of Expenses under this Agreement unless the Company’s ability to
defend in such Proceeding or to obtain proceeds under any insurance policy is materially and
adversely prejudiced thereby, and then only to the extent the Company is thereby actually so
prejudiced.

(b) Subject to the provisions of the last sentence of this Section 13(b) and of Section 13(c)
below, the Company shall have the right to defend Indemnitee in any Proceeding which may give rise
to indemnification hereunder; provided, however, that the Company shall notify Indemnitee of any
such decision to defend within 15 calendar days following receipt of notice of any such Proceeding
under Section 13(a) above. The Company shall not, without the prior written consent of Indemnitee,
which shall not be unreasonably withheld or delayed, consent to the entry of any judgment against
Indemnitee or enter into any settlement or compromise which (i) includes an admission of fault of
Indemnitee, (ii) does not include, as an unconditional term thereof, the full release of Indemnitee
from all liability in respect of such Proceeding, which release shall be in form and substance
reasonably satisfactory to Indemnitee or (iii) would impose any Expense, judgment, fine, penalty or
limitation on Indemnitee. This Section 13(b) shall not apply to a Proceeding brought by Indemnitee
under Section 12 above.

(c) Notwithstanding the provisions of Section 13(b) above, if in a Proceeding to which
Indemnitee is a party by reason of Indemnitee’s Corporate Status, (i) Indemnitee reasonably
concludes, based upon an opinion of counsel approved by the Company, which approval shall not be
unreasonably withheld, that he or she may have separate defenses or counterclaims to assert with
respect to any issue which may not be consistent with other defendants in such Proceeding,
(ii) Indemnitee reasonably concludes, based upon an opinion of counsel approved by the Company,
which approval shall not be unreasonably withheld, that an actual or apparent conflict of interest
or potential conflict of interest exists between Indemnitee and the Company, or (iii) if the
Company fails to assume the defense of such Proceeding in a timely manner, Indemnitee shall be
entitled to be represented by separate legal counsel of Indemnitee’s choice, subject to the prior
approval of the Company, which approval shall not be unreasonably withheld, at the expense of the
Company. In addition, if the Company fails to comply with any of its obligations under this
Agreement or in the event that the Company or any other person takes any action to declare this
Agreement void or unenforceable, or institutes any Proceeding to deny or to recover from Indemnitee
the benefits intended to be provided to Indemnitee hereunder, Indemnitee shall have the right to
retain counsel of Indemnitee’s choice, subject to the prior approval of the Company, which approval
shall not be unreasonably withheld, at the expense of the Company (subject to Section 12(d)), to
represent Indemnitee in connection with any such matter.

Section 14. Non-Exclusivity; Survival of Rights; Subrogation; Coordination of
Payments.

(a) The rights of indemnification and advance of Expenses as provided by this Agreement shall
not be deemed exclusive of any other rights to which Indemnitee may at any time be entitled under
applicable law, the charter or Bylaws of the Company, any agreement or a resolution of the
stockholders entitled to vote generally in the election of directors or of the Board of Directors,
or otherwise. Unless consented to in writing by Indemnitee, no amendment, alteration or repeal of
this Agreement or of any provision hereof shall limit or restrict any right of Indemnitee under
this Agreement in respect of any action taken or omitted by such Indemnitee in his or her Corporate
Status prior to such amendment, alteration or repeal, regardless of whether a claim with respect to
such action or inaction is raised prior or subsequent to such amendment, alteration or repeal. No
right or remedy herein conferred is intended to be exclusive of any other right or remedy, and
every other right or remedy shall be cumulative and in addition to every other right or remedy
given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion of any
right or remedy hereunder, or otherwise, shall not prohibit the concurrent assertion or employment
of any other right or remedy.

(b) In the event of any payment under this Agreement, the Company shall be subrogated to the
extent of such payment to all of the rights of recovery of Indemnitee, who shall execute all papers
required and take all action necessary to secure such rights, including execution of such documents
as are necessary to enable the Company to bring suit to enforce such rights.

(c) The Company shall not be liable under this Agreement to make any payment of amounts
otherwise indemnifiable or payable or reimbursable as Expenses hereunder if and to the extent that
Indemnitee has otherwise actually received such payment under any insurance policy, contract,
agreement or otherwise.

Section 15. Insurance. The Company will use its reasonable best efforts to acquire
directors and officers liability insurance, on terms and conditions deemed appropriate by the Board
of Directors, with the advice of counsel, covering Indemnitee or any claim made against Indemnitee
by reason of his or her Corporate Status and covering the Company for any indemnification or
advance of Expenses made by the Company to Indemnitee for any claims made against Indemnitee by
reason of his or her Corporate Status. Without in any way limiting any other obligation under this
Agreement, the Company shall indemnify Indemnitee for any payment by Indemnitee arising out of the
amount of any deductible or retention and the amount of any excess of the aggregate of all
judgments, penalties, fines, settlements and Expenses incurred by Indemnitee in connection with a
Proceeding over the coverage of any insurance referred to in the previous sentence. The purchase,
establishment and maintenance of any such insurance shall not in any way limit or affect the rights
or obligations of the Company or Indemnitee under this Agreement except as expressly provided
herein, and the execution and delivery of this Agreement by the Company and Indemnitee shall not in
any way limit or affect the rights or obligations of the Company under any such insurance policies.
If, at the time the Company receives notice from any source of a Proceeding to which Indemnitee is
a party or a participant (as a witness or otherwise), the Company has director and officer
liability insurance in effect, the Company shall give prompt notice of such Proceeding to the
insurers in accordance with the procedures set forth in the respective policies.

Section 16. Reports to Stockholders. To the extent required by the MGCL, the Company
shall report in writing to its stockholders the payment of any amounts for indemnification of, or
advance of Expenses to, Indemnitee under this Agreement arising out of a Proceeding by or in the
right of the Company with the notice of the meeting of stockholders of the Company next following
the date of the payment of any such indemnification or advance of Expenses or prior to such
meeting.

Section 17. Duration of Agreement; Binding Effect.

(a) This Agreement shall continue until and terminate ten years after the date that
Indemnitee’s Corporate Status shall have ceased; provided, that the rights of Indemnitee hereunder
shall continue until the final termination of any Proceeding then pending or threatened in respect
of which Indemnitee is granted rights of indemnification or advance of Expenses hereunder and of
any proceeding commenced by Indemnitee pursuant to Section 12 of this Agreement relating thereto.

(b) The indemnification and advance of Expenses provided by, or granted pursuant to, this
Agreement shall be binding upon and be enforceable by the parties hereto and their respective
successors and assigns (including any direct or indirect successor by purchase, merger,
consolidation or otherwise to all or substantially all of the business or assets of the Company),
shall continue as to an Indemnitee who has ceased to be a director, officer, employee or agent of
the Company or a director, trustee, officer, partner, manager, managing member, fiduciary, employee
or agent of any other foreign or domestic corporation, partnership, limited liability company,
joint venture, trust, employee benefit plan or other enterprise which such person is or was serving
in such capacity at the request of the Company, and shall inure to the benefit of Indemnitee and
his or her spouse, assigns, heirs, devisees, executors and administrators and other legal
representatives.

(c) The Company shall require and cause any successor (whether direct or indirect by purchase,
merger, consolidation or otherwise) to all, substantially all or a substantial part, of the
business and/or assets of the Company, by written agreement in form and substance satisfactory to
Indemnitee, expressly to assume and agree to perform this Agreement in the same manner and to the
same extent that the Company would be required to perform if no such succession had taken place.

(d) The Company and Indemnitee agree that a monetary remedy for breach of this Agreement, at
some later date, may be inadequate, impracticable and difficult of proof, and further agree that
such breach may cause Indemnitee irreparable harm. Accordingly, the parties hereto agree that
Indemnitee may enforce this Agreement by seeking injunctive relief and/or specific performance
hereof, without any necessity of showing actual damage or irreparable harm and that by seeking
injunctive relief and/or specific performance, Indemnitee shall not be precluded from seeking or
obtaining any other relief to which Indemnitee may be entitled. Indemnitee shall further be
entitled to such specific performance and injunctive relief, including temporary restraining
orders, preliminary injunctions and permanent injunctions, without the necessity of posting bonds
or other undertakings in connection therewith. The Company acknowledges that, in the absence of a
waiver, a bond or undertaking may be required of Indemnitee by a court, and the Company hereby
waives any such requirement of such a bond or undertaking.

Section 18. Severability. If any provision or provisions of this Agreement shall be
held to be invalid, illegal or unenforceable for any reason whatsoever: (a) the validity, legality
and enforceability of the remaining provisions of this Agreement (including, without limitation,
each portion of any section, paragraph or sentence of this Agreement containing any such provision
held to be invalid, illegal or unenforceable that is not itself invalid, illegal or unenforceable)
shall not in any way be affected or impaired thereby and shall remain enforceable to the fullest
extent permitted by law; (b) such provision or provisions shall be deemed reformed to the extent
necessary to conform to applicable law and to give the maximum effect to the intent of the parties
hereto; and (c) to the fullest extent possible, the provisions of this Agreement (including,
without limitation, each portion of any section, paragraph or sentence of this Agreement containing
any such provision held to be invalid, illegal or unenforceable, that is not itself invalid,
illegal or unenforceable) shall be construed so as to give effect to the intent manifested thereby.

Section 19. Identical Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall for all purposes be deemed to be an original but all of which
together shall constitute one and the same Agreement. One such counterpart signed by the party
against whom enforceability is sought shall be sufficient to evidence the existence of this
Agreement.

Section 20. Headings. The headings of the paragraphs of this Agreement are inserted
for convenience only and shall not be deemed to constitute part of this Agreement or to affect the
construction thereof.

Section 21. Modification and Waiver. No supplement, modification or amendment of this
Agreement shall be binding unless executed in writing by both of the parties hereto. No waiver of
any of the provisions of this Agreement shall be deemed or shall constitute a waiver of any other
provisions hereof (whether or not similar) nor shall such waiver constitute a continuing waiver.

Section 22. Notices. All notices, requests, demands and other communications hereunder
shall be in writing and shall be deemed to have been duly given if (i) delivered by hand and
receipted for by the party to whom said notice or other communication shall have been directed, on
the day of such delivery, or (ii) mailed by certified or registered mail with postage prepaid, on
the third business day after the date on which it is so mailed:

(a) If to Indemnitee, to the address set forth on the signature page hereto.

(b) If to the Company to:

Healthcare Trust of America, Inc.

Suite 320

16435 North Scottsdale Road

Scottsdale, Arizona 85254

Attn: General Counsel

or to such other address as may have been furnished in writing to Indemnitee by the Company or to
the Company by Indemnitee, as the case may be.

Section 23. Governing Law. This Agreement shall be governed by, and construed and
enforced in accordance with, the laws of the State of Maryland, without regard to its conflicts of
laws rules.

[SIGNATURE PAGE FOLLOWS]

1

IN WITNESS WHEREOF, the parties hereto have executed this Agreement on the day and year first
above written.

	 	 	 
	ATTEST:
	 	HEALTHCARE TRUST OF AMERICA, INC.

	     
	 	By:        (SEAL)

Name:

	 	 	Title:

	WITNESS:
	 	INDEMNITEE

	     
	 	     

Name:

	 	 	Address:

EXHIBIT A

AFFIRMATION AND UNDERTAKING TO REPAY EXPENSES ADVANCED

To: The Board of Directors of Healthcare Trust of America, Inc.

Re: Affirmation and Undertaking

Ladies and Gentlemen:

This Affirmation and Undertaking is being provided pursuant to that certain Amended and
Restated Indemnification Agreement, dated the        day of      , 2010, by and between
Healthcare Trust of America, Inc., a Maryland corporation (the “Company”), and the undersigned
Indemnitee (the “Indemnification Agreement”), pursuant to which I am entitled to advance of
Expenses in connection with [Description of Proceeding] (the “Proceeding”).

Terms used herein and not otherwise defined shall have the meanings specified in the
Indemnification Agreement.

I am subject to the Proceeding by reason of my Corporate Status or by reason of alleged
actions or omissions by me in such capacity. I hereby affirm my good faith belief that at all
times, insofar as I was involved as a director or officer of the Company, in any of the facts or
events giving rise to the Proceeding, I (1) did not act with bad faith or active or deliberate
dishonesty, (2) did not receive any improper personal benefit in money, property or services and
(3) in the case of any criminal proceeding, had no reasonable cause to believe that any act or
omission by me was unlawful.

In consideration of the advance of Expenses by the Company for reasonable attorneys’ fees and
related Expenses incurred by me in connection with the Proceeding (the “Advanced Expenses”), I
hereby agree that if, in connection with the Proceeding, it is established that (1) an act or
omission by me was material to the matter giving rise to the Proceeding and (a) was committed in
bad faith or (b) was the result of active and deliberate dishonesty or (2) I actually received an
improper personal benefit in money, property or services or (3) in the case of any criminal
proceeding, I had reasonable cause to believe that the act or omission was unlawful, then I shall
promptly reimburse the portion of the Advanced Expenses, together if prior to Listing with the
Applicable Legal Rate of interest thereon, relating to the claims, issues or matters in the
Proceeding as to which the foregoing findings have been established.

IN WITNESS WHEREOF, I have executed this Affirmation and Undertaking on this        day of
     , 20      .

      

Name:

2

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