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                                                    Exhibit 10(a) Code of Ethics

                                 CODE OF ETHICS
              FOR PRINCIPAL EXECUTIVE AND SENIOR FINANCIAL OFFICERS
                                       OF
                          MASSMUTUAL INSTITUIONAL FUNDS
                           MML SERIES INVESTMENT FUND

     This Code of Ethics (the "Code") for Principal Executive and Senior
Financial Officers has been adopted by those investment companies identified
above for which Massachusetts Mutual Life Insurance Company ("MassMutual") acts
as investment adviser (individually, a "Fund" and collectively, the "Funds"), to
effectuate compliance with Section 406 under the Sarbanes-Oxley Act of 2002 and
the rules adopted to implement Section 406. The Code applies to each Fund's
principal executive officer, principal financial officer, principal accounting
officer or controller, or persons performing similar functions ("Covered
Officers"). A listing of positions currently within the ambit of Covered
Officers for each Fund is attached as Exhibit A.(1)

1.   PURPOSES OF THE CODE

     This Code sets forth standards and procedures that are reasonably designed
to deter wrongdoing and to promote:

   -  honest and ethical conduct, including the ethical handling of actual or
      apparent conflicts of interest between personal and professional
      relationships;

   -  full, fair, accurate, timely, and understandable disclosure in reports and
      documents that the Funds file with, or submit to, the Securities and
      Exchange Commission ("SEC") and in other public communications made by the
      Funds;

   -  compliance with applicable governmental laws, rules and regulations;

   -  the prompt internal reporting of violations of this Code to an appropriate
      person identified in the Code; and

   -  accountability for adherence to this Code.

     It is acknowledged that, as a result of the contractual relationship
between each Fund and MassMutual, of which the Covered Officers are also
officers or employees, and subject to MassMutual's fiduciary duties to each
Fund, the Covered Officers will, in the normal course of their duties, be
involved in establishing policies and implementing decisions that may have
different effects on MassMutual and the Funds. It is further acknowledged that
the participation of the Covered Officers in such activities is inherent in the
contractual relationship between each Fund and MassMutual and is consistent with
the expectations of each Fund's Board of Trustees with respect to the
performance by the Covered Officers of their duties as officers of the Funds.

     In general, the principles that govern honest and ethical conduct,
including the avoidance of conflicts of interest between personal and
professional relationships, reflect, at the minimum, the following: (1) the duty
at all times in performing any responsibilities as a financial officer,
controller,

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(1) The obligations imposed by this Code on Covered Officers are separate from
and in addition to any obligations that may be imposed on such persons as
Covered Persons under the Code of Ethics adopted by the Funds dated August 4,
2003, under Rule 17j-1 of the Investment Company Act of 1940, as amended and any
other code of conduct applicable to Covered Officers in whatever capacity they
serve. This Code does not incorporate by reference any provisions of the Rule
17j-1 Code of Ethics and accordingly, any violations or waivers granted under
the Rule 17j-1 Code of Ethics will not be considered a violation or waiver under
this Code.

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accountant or principal executive officer of a Fund, to place the interests of
the Fund ahead of personal interests; (2) the fundamental standard that Covered
Officers should not take inappropriate advantage of their positions; (3) the
duty to assure that each Fund's financial statements and reports to shareholders
are prepared honestly and accurately in accordance with applicable rules,
regulations and accounting standards; and (4) the duty to conduct the Fund's
business and affairs in an honest and ethical manner. Each Covered Officer
should be sensitive to situations that may give rise to actual as well as
apparent conflicts of interest.

2.   PROHIBITIONS

     The specific provisions and reporting requirements of this Code are
concerned primarily with promoting honest and ethical conduct and avoiding
conflicts of interest between personal and professional relationships.

     No Covered Officer may use information concerning the business and affairs
of a Fund (including the investment intentions of a Fund), or use his or her
ability to influence such investment intentions, for personal gain to himself or
herself, his or her family or friends or any other person or in a manner
detrimental to the interests of a Fund or its shareholders.

     No Covered Officer may use his or her personal influence or personal
relationships to influence the preparation and issuance of financial reports of
a Fund whereby the Covered Officer would benefit personally to the detriment of
the Fund and its shareholders.

     No Covered Officer shall, in connection with carrying out his or her
official duties and responsibilities on behalf of a Fund:

     (i)    employ any device, scheme or artifice to defraud a Fund or its
            shareholders;

     (ii)   intentionally cause a Fund to make any untrue statement of a
            material fact or omit to state a material fact necessary in order
            to make the statements made, in light of the circumstances under
            which they are made, not misleading in its official documents,
            regulatory filings, financial statements or communications to the
            public;

     (iii)  engage in any act, practice, or course of business which operates
            or would operate as a fraud or deceit upon any Fund or its
            shareholders;

     (iv)   engage in any manipulative practice with respect to any Fund;

     (v)    intentionally cause a Fund to fail to comply with applicable laws,
            rules and regulations, including failure to comply with the
            requirement of full, fair, accurate, understandable and timely
            disclosure in reports and documents that a Fund files with, or
            submits to, the SEC and in other public communications made by the
            Fund;

     (vi)   intentionally mislead or omit to provide material information to
            the Fund's independent auditors or to the Board of Trustees or the
            officers of the Fund or its investment adviser in connection with
            Fund related matters;

     (vii)  fail to notify the Code Administrator (as defined in Section 7
            below) promptly if he or she becomes aware of any existing or
            potential violations of this Code or applicable laws; or

     (viii) retaliate against others for, or otherwise discourage, the
            reporting of actual or apparent violations of this Code.

3.   REPORTS OF CONFLICTS OF INTERESTS

     If a Covered Officer becomes aware of an actual or apparent conflict of
interest under this Code, he or she must immediately report the matter to the
Code's Administrator. Upon receipt of

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such report, the Code Administrator will take prompt steps to determine whether
an actual conflict of interest exists or appears to exist, and if so, will take
steps (if possible) to resolve the conflict or remedy the appearance thereof. If
the Code Administrator determines that no actual or apparent conflict exists,
the Code Administrator shall meet with the Covered Officer to advise him or her
of such finding and of his or her reason for taking no action. In lieu of
determining whether a conflict or appearance of conflict exists, the Code
Administrator may in his or her discretion refer the matter to the affected
Fund's Board of Trustees or any committee appointed by the Board to deal with
such information.

     If the Code Administrator is involved or believed to be involved in the
conflict of interest or appearance of conflict of interest, the Covered Officer
shall report the matter directly to MassMutual's General Counsel, or his or her
designee, who shall take the same action as described above with respect to
resolving the matter.

4.   WAIVERS

     Any Covered Officer requesting a waiver of any provision of this Code must
submit a written request for such waiver to the Code Administrator, setting
forth the basis of such request and all necessary facts upon which such request
can be evaluated. The Code Administrator shall review such request and make a
written determination thereon.

     In determining whether to waive any of the provisions of this Code, the
Code Administrator shall consider whether the proposed action:

          (i)    is prohibited by this Code;

          (ii)   is consistent with honest and ethical conduct; and

          (iii)  will result in a conflict of interest between the Covered
                 Officer's personal and professional obligations to a Fund.

     In lieu of determining whether to waive any provision of this Code, the
Code Administrator may in his or her discretion refer the matter to the affected
Fund's Board of Trustees or any committee appointed by the Board to deal with
such information.

5.   REPORTING REQUIREMENTS

     (a)  Each Covered Officer shall, upon becoming subject to this Code, be
presented with a copy of this Code by the Code Administrator, and shall affirm
in writing to the Code Administrator that he or she has received, read,
understands and shall adhere to this Code (See Exhibit B).

     (b)  At least annually, all Covered Officers shall be provided with a copy
of the current Code by the Code Administrator, and shall certify that they have
read and understand the Code and recognize that they are subject thereto (See
Exhibit B).

     (c)  At least annually, all Covered Officers shall certify that they have
complied with the requirements of this Code and that they have disclosed or
reported any violations of this Code to the Code Administrator (See Exhibit C).

     (d)  The Code Administrator shall submit a quarterly report to the Board of
Trustees or any committee appointed by the Board to deal with such information,
containing (i) a description of any report of a conflict of interest or apparent
conflict and the disposition thereof; (ii) a description of any request for a
waiver from this Code and the disposition thereof; (iii) any violation of the
Code that has been reported or found and the sanction imposed; and (iv) any
other significant information arising in connection with the Code, including any
proposed amendments.

     (e)  Each Covered Officer shall notify the Code Administrator promptly if
he or she knows of

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or has a reasonable belief that any violation of this Code has occurred or is
likely to occur. Failure to do so is itself a violation of this Code.

     (f)  Any changes to or waivers of this Code, including "implicit" waivers
as defined in applicable SEC rules, will, to the extent required, be disclosed
by the Funds as provided by applicable SEC rules.(2)

6.   SANCTIONS

     Any violations of this Code shall be subject to the imposition of such
sanctions by MassMutual as may be deemed appropriate under the circumstances to
achieve the purpose of this Code and may include, without limitation, a letter
of censure, suspension from employment or termination of employment, in the sole
discretion of MassMutual, and/or removal as an officer of the Fund, in the sole
discretion of the Fund's Board of Trustees or any committee appointed by the
Board to deal with such information.

7.   ADMINISTRATION AND CONSTRUCTION

     (a)  The administration of this Code of Ethics shall be the responsibility
          of the Code Administrator of this Code, acting under the terms of this
          Code and the oversight of the Board of Trustees of the Fund or any
          committee appointed by the Board to deal with such information.

     (b)  The Code Administrator shall be the Compliance Officer of the Funds or
          his or her designee.

     (c)  The duties of such Code Administrator will include:

          (i)   maintaining a current list of the names of all Covered
                Officers;

          (ii)  furnishing all Covered Officers a copy of this Code and
                initially and periodically informing them of their duties and
                obligations thereunder;

          (iii) maintaining or supervising the maintenance of all records
                required by this Code, including records of waivers granted
                hereunder;

          (iv)  issuing interpretations of this Code which appear to the Code
                Administrator to be consistent with the objectives of this
                Code and any applicable laws or regulations;

          (v)   conducting such inspections or investigations as shall
                reasonably be required to detect and report any violations of
                this Code, with his or her recommendations to MassMutual's
                General Counsel, or his or her designee, and to the Board of
                Trustees of the affected Fund(s) or any committee appointed by
                them to deal with such information; and

          (vi)  periodically conducting educational training programs as
                needed to explain and reinforce the terms of this Code.

     (d)  In carrying out the duties and responsibilities described under this
          Code, the Code Administrator may consult with such other persons as
          the Code Administrator shall deem necessary or desirable, including
          legal counsel to the Trust, legal counsel to the Trustees who are not
          "interested persons," as that term is defined in the Investment
          Company Act of 1940, as amended (the "Disinterested Trustees"), and
          legal counsel to the Trust's

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(2) An "implicit waiver" is the failure to take action within a reasonable
period of time regarding a material departure from a provision of this Code that
has been made known to the Code Administrator, MassMutual's General Counsel, or
his or her designee, or an officer of the Trust.

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          investment adviser.

8.   REQUIRED RECORDS

     The Code Administrator shall maintain and cause to be maintained in an
easily accessible place the following records for the period required by
applicable SEC rules (currently six years following the end of the fiscal year
of the Fund in which the applicable event or report occurred):

     (a)  a copy of any Code which has been in effect during the period;

     (b)  a copy of each certification pursuant to the Code made by a Covered
          Officer during the period;

     (c)  a copy of each report made by the Code Administrator pursuant to this
          Code during the period;

     (d)  a list of all Covered Officers who are or have been required to make
          reports pursuant to this Code during the period, plus those person(s)
          who are or were responsible for reviewing these reports;

     (e)  a record of any request to waive any requirement of this Code, the
          decision thereon and the reasons supporting the decision;

     (f)  a record of any report of any conflict of interest or appearance of a
          conflict of interest received by the Code Administrator or discovered
          by the Code Administrator during the period, the decision thereon and
          the reasons supporting the decision; and

     (g)  a record of any violation of any such Code and of any action taken as
          a result of such violation, during the period.

9.   AMENDMENTS AND MODIFICATIONS

     This Code (other than Exhibit A and the names of the Funds identified on
the first page that have adopted the Code) may not be amended or modified except
by a writing that is approved or ratified by a majority vote of the Board of
Trustees and the Disinterested Trustees.

10.  CONFIDENTIALITY.

     This Code is for the internal use of the Funds. Reports and records
prepared or maintained under this Code are considered confidential and shall be
maintained and protected accordingly to the extent permitted by applicable laws,
rules and regulations. Except as otherwise required by law or this Code, such
matters shall not be disclosed to anyone other than the Trustees and their
counsel, Fund counsel, Fund officers, the independent auditors of the Funds, and
MassMutual or its counsel, except as such disclosure may be required pursuant to
applicable judicial or regulatory process.

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                                    EXHIBIT A

                    POSITIONS COVERED BY THIS CODE OF ETHICS

MASSMUTUAL INSTITUTIONAL FUNDS AND MML SERIES INVESTMENT FUND

Principal Executive Officer
Chief Financial Officer
Treasurer
Assistant Treasurer

PERSONNEL OF MASSMUTUAL WHO BY VIRTUE OF THEIR JOBS PERFORM CRITICAL FINANCIAL
AND ACCOUNTING FUNCTIONS FOR MASSMUTUAL ON BEHALF OF A FUND, INCLUDING:

Second Vice President/Fund Operations

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                                    EXHIBIT B

                          INITIAL/ANNUAL CERTIFICATION

By signing below I certify that I have received, read, and understand this Code
of Ethics for Principal Executive and Senior Financial Officers of the Funds
(the "Code"), and further certify that I shall adhere to this Code.

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Signature

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(Type or Print) Name and Title

---------------------------
Date

Please return the executed certification to the Code Administrator.

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                                    EXHIBIT C

                    ANNUAL COMPLIANCE/REPORTING CERTIFICATION

By signing below, I certify that I have complied with the requirements of this
Code of Ethics for Principal Executive and Senior Financial Officers of the
Funds (the "Code"), and have disclosed or reported any violations of this Code
to the Code Administrator for the year ended _________________.

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Signature

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(Type or Print) Name and Title

--------------------------------
Date

Please return the executed certification to the Code Administrator.

                                        8QuickLinks
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Exhibit 4.1    
    

	COMMON STOCK	 	 	 	COMMON STOCK
	

NUMBER	
 	

 	
 	

SHARES
	

C	
 	

 
	
 	

 
	
THIS CERTIFICATE IS TRANSFERABLE

IN NEW YORK, NEW YORK	
 	
Favrille, Inc.
 INCORPORATED UNDER THE LAWS OF

THE STATE OF DELAWARE	
 	
CUSIP 312088 40 4
 SEE REVERSE FOR CERTAIN DEFINITIONS

THIS
CERTIFIES THAT 

is
the owner of 

FULLY PAID AND NONASSESSABLE SHARES OF COMMON STOCK OF THE PAR VALUE OF

$0.001 EACH PER SHARE OF  

FAVRILLE, INC. transferable on the books of the Corporation by the holder hereof, in person, or by duly authorized attorney, upon surrender of this certificate properly
endorsed. This certificate and the shares represented hereby are issued and shall be subject to the provisions of the laws of the State of Delaware and to all of the provisions of the Certificate of
Incorporation and the Bylaws of the Corporation, as amended from time to time, to all of which the holder hereof by acceptance of this certificate assents. This certificate is not valid until
countersigned by the Transfer Agent and registered by the Registrar. 

        WITNESS
the facsimile seal of the Corporation and facsimile signatures of its authorized officers. 

Dated:

	/s/  TAMARA A. SEYMOUR      	 	FAVRILLE, INC.

CORPORATE

SEAL

2000

DELAWARE	 	/s/  JOHN P. LONGENECKER      
	SECRETARY	 	 	 	PRESIDENT

	 	 	COUNTERSIGNED AND REGISTERED:

                MELLON INVESTOR SERVICES LLC
	 	 	TRANSFER AGENT

AND REGISTRAR
	

 	
 	

BY
	

 	
 	

AUTHORIZED SIGNATURE

Favrille, Inc.  

        The Corporation is authorized to issue shares of more than one class and to issue shares of preferred stock in series. The Certificate of Incorporation on file
with the Secretary of State of Delaware has denied the preemptive right of shareholders to acquire unissued or treasury shares, and further set forth all of the designations, preferences, limitations
and relative rights of the shares of each class authorized to be issued, the variations in the relative rights and preferences of the shares of each series to the extent they have been fixed and
determined, and the authority of the board of directors to fix and determine the relative rights and preferences of subsequent series. The Corporation will furnish a copy of such Certificate of
Incorporation or its Bylaws to the record holder of this certificate without charge on written request to the Corporation at its principal place of business or registered office. 

        The
following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or
regulations: 

	TEN COM	 	—	 	as tenants in common	 	UNIF GIFT MIN ACT	 	—	 	             Custodian             
	TEN ENT	 	—	 	as tenants by the entireties	 	 	 	 	 	    (Cust)                (Minor)
	JT TEN	 	—	 	as joint tenants with right

of survivorship and not as

tenants in common	 	 	 	 	 	Under Uniform Gifts

to Minors

Act                                     

                    (State)

Additional
abbreviations may also be used though not in the above list. 

        For
Value Received,
                                         
                                     hereby sell, assign and
transfer unto 

	PLEASE INSERT SOCIAL SECURITY OR OTHER

IDENTIFYING NUMBER OF ASSIGNEE	 	 

	    
 (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING POSTAL ZIP CODE, OF ASSIGNEE)

    
    
 Shares of the capital stock represented by the within Certificate, and do hereby irrevocably constitute and appoint

    
 Attorney to transfer the said stock on the books of the within named Corporation with full power of substitution in the premises.

	

Dated
                                         
       	
 	

 	
 	

 
	

 	
 	

X	
 	

    
 (SIGNATURE)
	 	 	NOTICE:	 	 	 	 
	 	 	THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME(S) AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.	 	 	 	 
	 	 	 	 	X	 	    
 (SIGNATURE)
	

 	
 	

 	
 	
THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE PROGRAM), PURSUANT TO
S.E.C. RULE 17Ad-15.
	

 	
 	

 	
 	
SIGNATURE(S) GUARANTEED BY:

QuickLinks

Exhibit 4.1

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"}]]