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                                                                    EXHIBIT 10.2

                                DALLAS G. SMILEY
                              EMPLOYMENT AGREEMENT

         THIS EMPLOYMENT AGREEMENT (this "AGREEMENT") is made and entered into
as of the 7th day of November, 2004, by and between MAIN STREET TRUST, INC., a
Delaware Corporation ("MSTI") and DALLAS G. SMILEY ("EMPLOYEE") and shall be
effective immediately upon the consummation of the merger of MSTI, Citizens
First Financial Corp. and Citizens Acquisition LLC (the "EFFECTIVE DATE").

                                    RECITALS

     A. MSTI desires to employ Employee as a Senior Vice President of MSTI.

     B. Employee desires to be employed as a Senior Vice President of MSTI.

     C. MSTI and Employee have made commitments to each other on a variety of
important issues concerning Employee's employment, including the performance
that will be expected of Employee, the compensation that Employee will be paid,
how long and under what circumstances Employee will remain employed, and the
financial details relating to any decision that either Employee or MSTI might
ever make to terminate Employee's employment.

     D. MSTI and Employee believe that the commitments they have made to each
other should be memorialized in writing, and that is the purpose of this
Agreement.

     THEREFORE, MSTI and Employee agree as follows:

                                   AGREEMENTS

     SECTION 1. TERM. The term of this Agreement and Employee's employment
hereunder will commence as of the Effective Date and terminate as of December
31, 2005, unless earlier terminated as provided in this Agreement.

     SECTION 2. EMPLOYMENT.

          (a) POSITIONS. Subject to the terms of this Agreement, MSTI hereby
     employs Employee, and Employee agrees to serve as a Senior Vice President
     of MSTI or in such other capacities with MSTI or its subsidiaries as the
     Board of Directors deems appropriate in its sole discretion, under the
     terms and conditions set forth herein as of the Effective Date.

          (b) DUTIES. Employee's duties, authority and responsibilities as a
     Senior Vice President of MSTI include all duties, authority and
     responsibilities customarily held by such officer of comparable companies,
     subject always to the charter and bylaw provisions and the policies of MSTI
     and the directions of the President and Chief Executive Officer of MSTI.
     Notwithstanding any other provision of this Agreement, MSTI shall not be
     under any obligation to provide Employee with any work, and MSTI may at any
     time suspend Employee and/or exclude him from any and all premises of MSTI
     and its affiliates, provided that Employee shall continue to be treated as
     an employee of MSTI, and his Base Salary (as defined below) and any

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     other benefits shall continue to be paid or provided by MSTI in accordance
     with the terms of this Agreement. If requested by MSTI in connection with
     the placement of Employee on leave or suspension of Employee from MSTI's
     premises pursuant to the preceding sentence, Employee agrees to resign from
     the position he holds as a Senior Vice President of MSTI.

          (c) CARE AND LOYALTY. Employee will devote Employee's best efforts and
     full business time, energy, skills and attention to the business and
     affairs of MSTI and its subsidiaries, and will faithfully and loyally
     discharge Employee's duties to MSTI and its subsidiaries.

          (d) TRANSFERS. The Board may, in its sole discretion, cause Employee's
     employment to be transferred from MSTI to any wholly owned subsidiary, in
     which case all references in this Agreement to "MSTI" will be deemed to
     refer to such subsidiary, provided that Employee shall not be required to
     relocate to an MSTI office outside of Bloomington, Illinois.

     SECTION 3. COMPENSATION. MSTI will compensate Employee for Employee's
services as follows during the term of this Agreement and Employee's employment
hereunder:

          (a) BASE COMPENSATION. Employee's annual base salary will be $100,000
     ("BASE SALARY").

          (b) REIMBURSEMENT OF EXPENSES. MSTI will reimburse Employee for all
     travel, entertainment and other out-of-pocket expenses that Employee
     reasonably and necessarily incurs in the performance of Employee's duties.
     Employee will document these expenses to the extent necessary to comply
     with all applicable laws and internal policies.

          (c) OTHER BENEFITS. Employee will be entitled to participate in all
     plans and benefits that are now or later made available by MSTI to all its
     employees. Employee shall be entitled to at least four (4) weeks of
     vacation time under MSTI's vacation policy.

          (d) WITHHOLDING. Employee acknowledges that MSTI may withhold any
     applicable federal, state or local withholding or other taxes from payments
     that become due or allowances that are provided to Employee.

     SECTION 4. TERMINATION.

          (a) TERMINATION WITHOUT CAUSE. Either MSTI or Employee may terminate
     this Agreement and Employee's employment hereunder for any reason by
     delivering written notice of termination to the other party no less than
     ninety (90) days before the effective date of termination, which date will
     be specified in the notice of termination. If Employee voluntarily
     terminates Employee's employment under this Agreement, then MSTI shall only
     be required to pay Employee such Base Salary as shall have accrued through
     the effective date of such termination and MSTI shall have no further
     obligations to Employee.

          (b) TERMINATION FOR CAUSE. MSTI may terminate this Agreement and
     Employee's employment hereunder for Cause by delivering written notice of
     termination to Employee no less than thirty (30) days before the effective
     date of termination. "Cause" for termination will exist if: (i) Employee
     engages in one or more unsafe and unsound banking practices or material
     violations of a law or regulation applicable to MSTI or its subsidiaries,
     any

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     repeated violations of a policy of MSTI after being warned in writing
     by the Board and/or a senior officer not to violate such policy, any single
     violation of a policy of MSTI if such violation materially and adversely
     affects the business or affairs of MSTI, or a direction or order of the
     Board and/or one of Employee's senior officers; (ii) Employee engages in a
     breach of fiduciary duty or act of dishonesty involving the affairs of
     MSTI; (iii) Employee is removed or suspended from banking pursuant to
     Section 8(e) of the Federal Deposit Insurance Act or any other applicable
     State or Federal law; or (iv) Employee commits a material breach of
     Employee's obligations under this Agreement. If Employee's employment is
     terminated pursuant to this Section 4(b), then MSTI shall only be required
     to pay Employee such Base Salary as shall have accrued through the
     effective date of such termination and MSTI shall have no further
     obligations to Employee.

          (c) TERMINATION UPON DISABILITY. MSTI will not terminate this
     Agreement and Employee's employment hereunder if Employee becomes disabled
     within the meaning of MSTI's then current employee disability program or,
     at MSTI's election, as determined by a physician selected by MSTI, unless
     as a result of such disability, Employee is unable to perform Employee's
     duties with the requisite level of skill and competence for a period of six
     (6) consecutive months. Thereafter, MSTI may terminate this Agreement for
     Cause in accordance with Subsection 4(b)(v).

          (d) TERMINATION UPON DEATH. This Agreement will terminate if Employee
     dies during the term of this Agreement, effective on the date of Employee's
     death. Any payments that are owing to Employee under this Agreement or
     otherwise at the time of Employee's death will be made to whomever Employee
     may designate in writing as Employee's beneficiary, or absent such a
     designation, to the executor or administrator of Employee's estate.

          (e) SEVERANCE BENEFITS. MSTI will pay severance benefits to Employee
     as follows:

               (i) If this Agreement and Employee's employment hereunder are
          terminated by MSTI without Cause pursuant to Section 4(a), MSTI will
          pay Employee an amount equal to Employee's then applicable annual Base
          Salary through the remaining term of this Agreement as provided in
          Section 1 (the "SEVERANCE PAYMENT"). If the effective date of
          termination occurs before the last day of the term of this Agreement
          as provided in Section 1, the Severance Payment will also include the
          value of the contributions that would have been made to Employee or
          for Employee's benefit under all applicable retirement and other
          employee benefit plans had Employee remained in MSTI's employ through
          the last day of the term. MSTI will also continue to provide Employee
          and Employee's dependents, at the expense of MSTI, with continuing
          coverage under existing health programs for the remaining term of this
          Agreement (or such shorter period during which Employee is eligible
          for and elects coverage under COBRA, as defined below), provided that,
          to the extent Employee paid a portion of the premium for such benefit
          while employed Employee shall continue to pay such portion during the
          period of continuation hereunder and provided further, that if such
          benefit is subject to the health care continuation rules of the
          Consolidated Omnibus Budget Reconciliation Act of 1985 ("COBRA") then
          any period of continuation hereunder shall be credited against the
          continuation rights under COBRA and Employee will be required to
          complete all COBRA election and other forms.

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               (ii) All payments that become due to Employee under this Section
          4(e) will be made in equal monthly installments commencing on the
          first day of the month immediately succeeding Employee's termination
          of employment and continuing through the remaining term of this
          Agreement, unless MSTI elects to make those payments in one (1) lump
          sum. MSTI will be obligated to make all payments that become due to
          Employee under this Section 4(e) whether or not Employee obtains other
          employment following termination or takes steps to mitigate any
          damages that Employee claims to have sustained as a result of
          termination. The payments and other benefits provided for in this
          Section 4(e) are intended to supplement any compensation or other
          benefits that have accrued or vested with respect to Employee or for
          Employee's account as of the effective date of termination.

               (iii) MSTI may elect to defer any payments that may become due to
          Employee under this Section 4(e) if, at the time the payments become
          due, MSTI is not in compliance with any regulatory-mandated minimum
          capital requirements or if making the payments would cause MSTI's
          capital to fall below such minimum capital requirements. In this
          event, MSTI will resume making the payments as soon as it can do so
          without violating such minimum capital requirements.

          (f) PAYMENT EQUALIZATION. If MSTI is paying, or in the case of a lump
     sum, has paid, Employee a Severance Payment under Section 4(e), then
     Employee agrees to not seek or apply for unemployment compensation under
     the Illinois Unemployment Act 820 ILCS 405/100 ET SEQ. or any other state
     or federal unemployment compensation law at any time prior to a date
     following the final payment made hereunder or with respect to the period
     during which such payments were or were to be made until the final payment
     is made.

          (g) RELEASE. As a condition to MSTI's obligation to pay any Severance
     Payment under Section 4(e), Employee agrees that Employee will execute a
     general release of MSTI and its affiliates, substantially in the form
     attached hereto as EXHIBIT A.

     SECTION 5. CONFIDENTIALITY. Employee acknowledges that the nature of
Employee's employment will require that Employee produce and have access to
records, data, trade secrets and information that are not available to the
public regarding MSTI and its subsidiaries and affiliates ("CONFIDENTIAL
INFORMATION"). Employee will hold in confidence and not directly or indirectly
disclose any Confidential Information to third parties unless disclosure becomes
reasonably necessary in connection with Employee's performance of Employee's
duties hereunder, or the Confidential Information lawfully becomes available to
the public from other sources, or Employee is authorized in writing by MSTI to
disclose it, or Employee is required to make disclosure by a law or pursuant to
the authority of any administrative agency or judicial body. All Confidential
Information and all other records, files, documents and other materials or
copies thereof relating to the business of MSTI or any of its subsidiaries or
affiliates that Employee prepares or uses will always be the sole property of
MSTI. Employee will promptly return all originals and copies of such
Confidential Information and other records, files, documents and other materials
to MSTI if Employee's employment with MSTI is terminated for any reason.

     SECTION 6. NON-COMPETITION COVENANT.

          (a) RESTRICTIVE COVENANT. MSTI and Employee have jointly reviewed the
     customer lists and operations of MSTI and agree that MSTI's primary service
     area for its

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     lending, deposit and wealth management activities encompasses the fifty
     (50) mile radii from each of MSTI's main office in Champaign, Illinois and
     the branch offices of MSTI and its subsidiary banks. Employee agrees that,
     for a period of one (1) year after the termination of this Agreement,
     Employee will not, without MSTI's prior written consent, directly or
     indirectly Compete with MSTI. For the purposes of Section 6(a):

               (i) "COMPETE" means directly or indirectly owning, managing,
          operating or controlling a Competitor, or directly or indirectly
          serving as an employee, officer or director of or a consultant to a
          Competitor, or soliciting or inducing any employee or agent of MSTI to
          terminate employment with MSTI or any of its subsidiaries and become
          employed by a Competitor, or by soliciting or inducing any customer,
          wherever located, of MSTI or its subsidiary banks with whom Employee
          had contact during Employee's employment to modify or terminate its
          relationship with the Company or its subsidiary banks.

               (ii) "COMPETITOR" means any person, firm, partnership,
          corporation, trust or other entity that owns, controls or is a bank,
          savings and loan association, credit union or similar financial
          institution or financial planning, brokerage or investment firm
          (collectively, a "FINANCIAL INSTITUTION") that is physically located
          and conducts lending, deposit and wealth management activities within
          the fifty (50) mile radii from each of MSTI's main office in
          Champaign, Illinois and of its subsidiary banks.

          (b) SUCCESSORS. In the event that a successor to MSTI succeeds to or
     assumes MSTI's rights and obligations under this Agreement, Section 6(a)
     will apply only to the primary service areas of MSTI as they existed
     immediately before the succession or assumption occurred and will not apply
     to any of the successor's other offices.

          (c) INVESTMENT EXCEPTION. Section 6(a) will not prohibit Employee from
     directly or indirectly owning or acquiring any capital stock or similar
     securities that are listed on a securities exchange or quoted on the NASDAQ
     and do not represent more than five percent (5%) of the outstanding capital
     stock of any Financial Institution.

          (d) INJUNCTIVE RELIEF. Employee agrees that a violation of this
     Section 6 would result in direct, immediate and irreparable harm to MSTI,
     and in such event, agrees that MSTI, in addition to its other right and
     remedies, would be entitled to injunctive relief enforcing the terms and
     provisions of this Section 6.

     SECTION 7. GENERAL PROVISIONS.

          (a) SUCCESSORS; ASSIGNMENT. This Agreement will be binding upon and
     inure to the benefit of Employee, MSTI and their respective personal
     representatives, successors and assigns. For the purposes of this
     Agreement, any successor or assign of MSTI shall be deemed to be "MSTI."
     MSTI will require any successor or assign of MSTI or any direct or indirect
     purchaser or acquiror of all or substantially all of the business, assets
     or liabilities of MSTI, whether by transfer, purchase, merger,
     consolidation, stock acquisition or otherwise, to assume and agree in
     writing to perform this Agreement and MSTI's obligations hereunder in the
     same manner and to the same extent as MSTI would have been required to
     perform them if no such transaction had occurred.

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          (b) ENTIRE AGREEMENT; SURVIVAL. This Agreement constitutes the entire
     agreement between Employee and MSTI concerning the subject matter hereof,
     and supersedes all prior negotiations, undertakings, agreements and
     arrangements with respect thereto, whether written or oral (including but
     not limited to any employment agreements with [CITIZENS FIRST] or any of
     its subsidiaries). The provisions of this Agreement will be regarded as
     divisible and separate; if any provision is ever declared invalid or
     unenforceable, the validity and enforceability of the remaining provisions
     will not be affected. In the event any provision of this Agreement
     (including, but not limited to, any provision of the covenant not to
     compete set forth in Section 6) is held to be overbroad as written, such
     provision shall be deemed to be amended to narrow the application of such
     provision to the extent necessary to make such provision enforceable
     according to applicable law. This Agreement may not be amended or modified
     except by a writing signed by Employee and MSTI. The parties acknowledge
     and agree that the obligations under Section 5 (Confidentiality) and
     Section 6 (Non-Competition Covenant) shall survive the termination of this
     Agreement.

          (c) GOVERNING LAW AND ENFORCEMENT. This Agreement will be construed
     and the legal relations of the parties hereto shall be determined in
     accordance with the laws of the State of Illinois without reference to the
     law regarding conflicts of law.

          (d) ARBITRATION. Any dispute or controversy arising under or in
     connection with this Agreement shall be settled exclusively by arbitration
     conducted at a location selected by MSTI within fifty (50) miles from
     Champaign, Illinois, in accordance with the rules of the American
     Arbitration Association.

          (e) LEGAL FEES. All reasonable legal fees paid or incurred in
     connection with any dispute or question of interpretation relating to this
     Agreement shall be paid to the party who is successful on the merits by the
     other party.

          (f) WAIVER. No waiver by either party at any time of any breach by the
     other party of, or compliance with, any condition or provision of this
     Agreement to be performed by the other party, shall be deemed a waiver of
     any similar or dissimilar provisions or conditions at the same time or any
     prior or subsequent time.

          (g) NOTICES. Notices pursuant to this Agreement shall be in writing
     and shall be deemed given when received; and, if mailed, shall be mailed by
     United States registered or certified mail, return receipt requested,
     postage prepaid; and if to MSTI, addressed to the principal headquarters of
     MSTI, attention: President and Chief Executive Officer; or, if to Employee,
     to the address set forth below Employee's signature on this Agreement, or
     to such other address as the party to be notified shall have given to the
     other.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

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         IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first above written.

MAIN STREET TRUST, INC.

By:      /s/ Van A. Dukeman                     /s/ Dallas G. Smiley
      --------------------------------       --------------------------------
      Name        Van A. Dukeman             Dallas G. Smiley
            --------------------------
      Title       President                  709 Watford Drive
             -------------------------       --------------------------------
                                             Bloomington, IL 61704
                                             --------------------------------
                                                        Address

Signature page to DS Employment Agreement

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                                                                      EXHIBIT A

                              AGREEMENT AND RELEASE

         This Agreement and Release (this "AGREEMENT") is made and entered into
as of this _______ day of ___________, ______, by and between
_______________________ (hereinafter referred to as "EMPLOYEE") and Main Street
Trust, Inc., (hereinafter referred to as the "EMPLOYER"). In consideration of
the mutual covenants hereinafter set forth, the parties hereto agree as follows:

     SECTION 1. SEPARATION. The parties agree that Employee's employment with
the Employer shall end effective ____________________.

     SECTION 2. PAYMENT AND BENEFITS. In consideration of the promises made in
this Agreement, the Employer has agreed to pay Employee the compensation and
benefits as provided in the Employment Agreement entered into between Employee
and the Employer on ______________________. Employee expressly agrees,
understands and acknowledges that the pay provided Employee's under this Section
2 constitutes an amount in excess of that which a separated employee of the
Employer would be entitled without entering into this Agreement. Employee
acknowledges that the above pay is being provided by the Employer as
consideration for Employee entering into this Agreement, including the release
of claims and waiver of rights provided in Section 3.

     SECTION 3. RELEASE OF CLAIMS AND WAIVER OF RIGHTS. Employee, on Employee's
own behalf and that of Employee's heirs, executors, attorneys, administrators,
successors and assigns, fully releases and discharges the Employer, its
predecessors, successors, subsidiaries, affiliates and assigns, and its and
their directors, officers, trustees, employees, and agents whether in their
individual or official capacities and the current and former trustees or
administrators of any retirement or other benefit plan applicable to the
employees or former employees of the Employer, in their official and individual
capacities from any and all liability, claims and demands, including but not
limited to, claims, demands or actions arising under the Employer's policies and
procedures, whether formal or informal, United States or State of Illinois
Constitutions; the Civil Rights Act of 1964, as amended; the Civil Rights Act of
1991; the Illinois Human Rights Act; the Employee Retirement Income Security Act
of 1974, as amended; the Age Discrimination in Employment Act; Executive Order
11246; and any other federal, state or local statute, ordinance or regulation
with respect to employment, and in addition thereto, from any other claims,
demands or actions with respect to Employee's employment with the Employer or
other association with the Employer through the date of this Agreement,
including, but not limited to, the termination of Employee's employment with the
Employer, any right of payment for disability or any other statutory or
contractual right of payment or any claim for relief on the basis of any alleged
tort or breach of contract under the common law of the State of Illinois or any
other state, including, but not limited to, defamation, intentional or negligent
infliction of emotional distress, breach of the covenant of good faith and fair
dealing, promissory estoppel, and negligence. Employee represents that Employee
has not assigned or filed any claim, demand, action or charge against the
Employer.

     SECTION 4. MUTUAL NON-DISPARAGEMENT. The Employer and Employee agree that,
at all times following the signing of this Agreement, they shall not engage in
any vilification of the other, and shall refrain from making any false,
negative, critical or disparaging statements,

                                      A-1
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implied or expressed, concerning the other, including, but not limited to,
management style, methods of doing business, the quality of products and
services, role in the community, or treatment of employees. Employee
acknowledges that the only persons whose statements may be attributed to the
Employer for purposes of this Agreement not to make disparaging statements shall
be each member of the Board of Directors of the Employer and each of Employee's
senior officers. The parties further agree to do nothing that would damage the
other's business reputation or good will.

     SECTION 5. REPRESENTATIONS BY EMPLOYEE. Employee warrants that Employee is
legally competent to execute this Agreement and that Employee has not relied on
any statements or explanations made by the Employer or its attorney. Moreover,
Employee hereby acknowledges that Employee has been afforded the opportunity to
be advised by legal counsel regarding the terms of this Agreement, including the
release of all claims and waiver of rights set forth in Section 3. Employee
acknowledges that Employee has been offered at least twenty-one (21) days to
consider this Agreement. After being so advised, and without coercion of any
kind, Employee freely, knowingly, and voluntarily enters into this Agreement.
Employee further acknowledges that Employee may revoke this Agreement within
seven (7) days after Employee has signed this Agreement and further understands
that this Agreement shall not become effective or enforceable until seven (7)
days after Employee has signed this Agreement as evidenced by the date set forth
below Employee's signature (the "Effective Date"). Any revocation must be in
writing and directed to the Employer, _____________________________, __________,
Illinois ___________, Attention: ___________________. If sent by mail, any
revocation must be postmarked within the seven (7)-day period and sent by
certified mail, return receipt requested.] In addition, Employee represents that
Employee has returned all property of the Employer that is in Employee's
possession, custody or control, including all documents, records and tangible
property that are not publicly available and reflect, refer or relate to the
Employer or the Employer's business affairs, operations or customers, and all
copies of the foregoing.

     SECTION 6. NO ADMISSIONS. The Employer denies that it or any of its
employees or agents have taken any improper action against Employee, and
Employee agrees that this Agreement shall not be admissible in any proceeding as
evidence of improper action by the Employer or any of their employees or agents.

     SECTION 7. CONFIDENTIALITY. Employee and the Employer agree to keep the
existence and the terms of this Agreement confidential, except for Employee's
immediate family members or their legal or tax advisors in connection with
services related hereto and except as may be required by law or in connection
with the preparation of tax returns.

     SECTION 8. NON-WAIVER. The Employer's waiver of a breach of this Agreement
by Employee shall not be construed or operate as a waiver of any subsequent
breach by Employee of the same or of any other provision of this Agreement.

     IN WITNESS WHEREOF, the undersigned have set their hands the day and year
set forth below their respective signatures.

                                      A-2
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Main Street Trust, Inc.

By:
     ---------------------------------    -------------------------------------
Title:                                    [Employee Name]
        ------------------------------

Date:                                     Date:
       -------------------------------           ------------------------------

                                      A-3QuickLinks
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Exhibit 10.2    
    

 
 

PROMISSORY NOTE    
    

(Date)

        FOR
VALUE RECEIVED, ACUSPHERE, INC. a corporation located at the address stated below ("MAKER") promises, jointly and severally if more than one, to pay to the order of GENERAL
ELECTRIC CAPITAL CORPORATION or any subsequent holder hereof (each, a "PAYEE") at its office located at 401 MERRITT 7 SUITE 23, NORWALK, CT 06851-1177 or at such other place as Payee or
the holder hereof may designate, the principal sum of                          DOLLARS 
($                        ), with interest on the unpaid principal
balance, from the date hereof through and including the dates of payment, at a fixed interest rate of
                         percent
(                        %) per annum, to be paid in lawful money of the United States, in
                        
(                        ) consecutive monthly installments of principal and interest as follows: 

	Periodic

Installment
 
	 	Amount

	

 	
 	

 

(each
"Periodic Installment"), and a final installment which shall be in the amount of                          Dollars
($                        ), plus any
outstanding principal and interest. The first Periodic Installment shall be due and payable on                          and
the following Periodic Installments and the final
installment shall be due and payable on the same day of each succeeding month (each, a "Payment Date"). Such installments have been calculated on the basis of a 360 day year of twelve
30-day months. Each payment may, at the option of the Payee, be calculated and applied on an assumption that such payment would be made on its due date. 

        The
acceptance by Payee of any payment which is less than payment in full of all amounts due and owing at such time shall not constitute a waiver of Payee's right to receive payment in
full at such time or at any prior or subsequent time. 

        The
Maker hereby expressly authorizes the Payee to insert the date value is actually given in the blank space on the face hereof and on all related documents pertaining hereto. 

        This
Note may be secured by a security agreement, chattel mortgage, pledge agreement or like instrument (each of which is hereinafter called a "SECURITY AGREEMENT"). 

        Time
is of the essence hereof. If any installment or any other sum due under this Note or any Security Agreement is not received within ten (10) days after its due date, the Maker
agrees to pay, in addition to the amount of each such installment or other sum, a late payment charge of five percent (5%) of the amount of said installment or other sum, but not exceeding any lawful
maximum. If (i) Maker fails to make payment of any amount due hereunder within ten (10) days after the same becomes due and payable; or (ii) Maker is in default under, or fails to
perform under any term or condition contained in any Security Agreement, then the entire principal sum remaining unpaid, together with all accrued interest thereon and any other sum payable under this
Note or any Security Agreement, at the election of Payee, shall, upon Payee's election, immediately become due and payable, with interest thereon at the lesser of eighteen percent (18%) per annum or
the highest rate not prohibited by applicable law from the date of such accelerated maturity until paid (both before and after any judgment). 

        The
Maker may prepay in full, but not in part, its entire indebtedness hereunder upon payment of the entire indebtedness plus an additional sum as a premium equal to the following
percentages of the remaining principal balance for the indicated period: 

	•
	Prior
to the first annual anniversary date of this Note: Not Allowed 

	•
	Thereafter
and prior to the second annual anniversary date of this Note: five percent (5%)

	•
	Thereafter
and prior to the third annual anniversary date of this Note: three percent (3%) 

        Plus
all other sums due hereunder or under any Security Agreement. 

        It
is the intention of the parties hereto to comply with the applicable usury laws; accordingly, it is agreed that, notwithstanding any provision to the contrary in this Note or any
Security Agreement, in no event shall this Note or any Security Agreement require the payment or permit the collection of interest in excess of the maximum amount permitted by applicable law. If any
such excess interest is contracted for, charged or received under this Note or any Security Agreement, or if all of the principal balance shall be prepaid, so that under any of such circumstances the
amount of interest contracted for, charged or received under this Note or any Security Agreement on the principal balance shall exceed the maximum amount of interest permitted by applicable law, then
in such event (a) the provisions of this paragraph shall govern and control, (b) neither Maker nor any other person or entity now or hereafter liable for the payment hereof shall be
obligated to pay the amount of such interest to the extent that it is in excess of the maximum amount of interest permitted by applicable law, (c) any such excess which may have been collected
shall be either applied as a credit against the then unpaid principal balance or refunded to Maker, at the option of the Payee, and (d) the effective rate of interest shall be automatically
reduced to the maximum lawful contract rate allowed under applicable law as now or hereafter construed by the courts having jurisdiction thereof. It is further agreed that without limitation of the
foregoing, all calculations of the rate of interest contracted for, charged or received under this Note or any Security Agreement which are made for the purpose of determining whether such rate
exceeds the maximum lawful contract rate, shall be made, to the extent permitted by applicable law, by amortizing, prorating, allocating and spreading in equal parts during the period of the full
stated term of the indebtedness evidenced hereby, all interest at any time contracted for, charged or received from Maker or otherwise by Payee in connection with such indebtedness; provided, however,
that if any applicable state law is amended or the law of the United States of America preempts any applicable state law, so that it becomes lawful for the Payee to receive a greater interest per
annum rate than is presently allowed, the Maker agrees that, on the effective date of such amendment or preemption, as the case may be, the lawful maximum hereunder shall be increased to the maximum
interest per annum rate allowed by the amended state law or the law of the United States of America. 

        The
Maker and all sureties, endorsers, guarantors or any others (each such person, other than the Maker, an "OBLIGOR") who may at any time become liable for the payment hereof jointly
and severally consent hereby to any and all extensions of time, renewals, waivers or modifications of, and all substitutions or releases of, security or of any party primarily or secondarily liable on
this Note or any Security Agreement or any term and provision of either, which may be made, granted or consented to by Payee, and agree that suit may be brought and maintained against any one or more
of them, at the
election of Payee without joinder of any other as a party thereto, and that Payee shall not be required first to foreclose, proceed against, or exhaust any security hereof in order to enforce payment
of this Note. The Maker and each Obligor hereby waives presentment, demand for payment, notice of nonpayment, protest, notice of protest, notice of dishonor, and all other notices in connection
herewith, as well as filing of suit (if permitted by law) and diligence in collecting this Note or enforcing any of the security hereof, and agrees to pay (if permitted by law) all expenses incurred
in collection, including Payee's actual attorneys' fees. Maker and each Obligor agrees that fees not in excess of twenty percent (20%) of the amount then due shall be deemed reasonable. 

        THE
MAKER HEREBY UNCONDITIONALLY WAIVES ITS RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF, DIRECTLY OR INDIRECTLY, THIS NOTE, ANY OF THE RELATED
DOCUMENTS, ANY DEALINGS BETWEEN MAKER AND PAYEE RELATING TO THE SUBJECT MATTER OF THIS TRANSACTION OR ANY RELATED TRANSACTIONS, AND/OR THE RELATIONSHIP THAT IS BEING ESTABLISHED BETWEEN MAKER AND
PAYEE. THE SCOPE OF THIS WAIVER IS INTENDED TO BE ALL ENCOMPASSING OF ANY AND ALL DISPUTES THAT MAY BE 

FILED
IN ANY COURT (INCLUDING, WITHOUT LIMITATION, CONTRACT CLAIMS, TORT CLAIMS, BREACH OF DUTY CLAIMS, AND ALL OTHER COMMON LAW AND STATUTORY CLAIMS.) THIS WAIVER IS IRREVOCABLE MEANING THAT IT MAY
NOT BE MODIFIED EITHER ORALLY OR IN WRITING, AND THE WAIVER SHALL APPLY TO ANY SUBSEQUENT AMENDMENTS, RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO THIS NOTE, ANY RELATED DOCUMENTS, OR TO ANY OTHER
DOCUMENTS OR AGREEMENTS RELATING TO THIS TRANSACTION OR ANY RELATED TRANSACTION. IN THE EVENT OF LITIGATION, THIS NOTE MAY BE FILED AS A WRITTEN CONSENT TO A TRIAL BY THE COURT. 

        This
Note and any Security Agreement constitute the entire agreement of the Maker and Payee with respect to the subject matter hereof and supercedes all prior understandings, agreements
and representations, express or implied. 

        No
variation or modification of this Note, or any waiver of any of its provisions or conditions, shall be valid unless in writing and signed by an authorized representative of Maker and
Payee. Any such waiver, consent, modification or change shall be effective only in the specific instance and for the specific purpose given. 

        Any
provision in this Note or any Security Agreement which is in conflict with any statute, law or applicable rule shall be deemed omitted, modified or altered to conform thereto. 

	 	 	ACUSPHERE, INC.
	

 (Witness)	
 	

By:	

	

 (Print name)	
 	

Name:	

	

 (Address)	
 	

Title:	

	

 	
 	

Federal Tax ID #:	

	

 	
 	

Address:	

Schedule of Loan Amounts  

	Sched. No.
 
	 	Date
	 	Principal Amount
	 	Term (mos.)
	 	Monthly Payment
	 	Final Payment

	No. 1	 	4/16/2004	 	$	71,648.75	 	48	 	$	1,685.25	 	$	7,058.90
	No. 2	 	4/16/2004	 	 	156,996.65	 	36	 	 	4,697.05	 	 	16,471.80
	No. 3	 	6/30/2004	 	 	144,862.99	 	48	 	 	3,432.75	 	 	14,297.47
	No. 4	 	6/30/2004	 	 	50,644.96	 	36	 	 	1,525.95	 	 	5,324.32
	No. 5	 	9/24/2004	 	 	212,516.34	 	48	 	 	4,983.70	 	 	20,922.26
	No. 6	 	9/24/2004	 	 	95,244.37	 	36	 	 	2,850.50	 	 	9,993.82
	No. 7	 	12/21/2004	 	 	21,914.00	 	48	 	 	518.00	 	 	2,161.55
	No. 8	 	12/21/2004	 	 	1,800,353.51	 	36	 	 	54,271.85	 	 	189,298.35
	 	 	 	 	
	 	 	 	 	 	 	 	 
	 	 	 	 	$	2,554,181.57	 	 	 	 	 	 	 	 

QuickLinks

Exhibit 10.2

PROMISSORY NOTE

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00076-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00076-of-00352.parquet"}]]