Document:

Exhibit
    10.6

 

PINEAPPLE
ENERGY INC. 

CHANGE
IN CONTROL AGREEMENT

 

This
CHANGE IN CONTROL Agreement is entered into effective as of the 5th day of December, 2022 (the “Effective Date”) by
and between PINEAPPLE ENERGY INC., a Minnesota corporation (the “Company”), and Eric Ingvaldson (the “Executive”).

 

The
Board of Directors of the Company (the “Board”) has determined that it is in the best interests of the Company to
retain the Executive’s services and to reinforce and encourage the continued attention and dedication of the Executive to
his or her assigned duties, without distraction in potentially disturbing circumstances arising from the possibility of a change
in control of the Company.

 

The
Company and the Executive agree as provided herein.

 

Article
1 

Definitions

 

Whenever
used in this Agreement, the following words and phrases shall have the meanings specified:

 

1.1       “Agreement”
means this Pineapple Energy Inc. Change in Control Agreement, as it may be amended from time to time.

 

1.2       “Cause”
means

 

(a)  Gross
negligence or gross neglect of duties; or

 

(b)  Commission
of a felony or of a gross misdemeanor involving moral turpitude which in the reasonable determination of the Board is materially
and demonstrably injurious to the Company or which impairs the Executive’s ability to perform substantially the Executive’s
duties with the Company or a Subsidiary; or

 

 (c)  Fraud,
disloyalty, dishonesty or willful violation of any law or a willful violation of a material Company or Subsidiary policy which,
after warning, remains a continuing violation, committed in connection with the Executive’s employment.

 

1.3       “Change
in Control” shall occur on the earliest date that:

 

(a)  A
“person” or “group”  acquires ownership of stock of the Company that, together with stock held
by such person or group, constitutes more than fifty

 

    

     

    

 

 percent (50%) of the total fair market value or total voting power of the
stock of the Company;

 

(b)
any person or group acquires (or has acquired during the twelve (12) month period ending on the date of the most recent acquisition
by such person or group) ownership of stock of the Company possessing thirty percent (30%) or more of the total voting power of
the stock of the Company;

 

(c)
a majority of the members of the Board is replaced during any twelve (12) month period by directors whose appointment or election
is not endorsed by a majority of the members of the Board prior to the date that such appointments or elections are made; or

 

(d)
any person or group acquires (or has acquired) during the twelve (12) month period ending on the date of the most recent acquisition
by such person or group, assets from the Company that have a total gross fair market value equal to or more than forty percent
(40%) of the total gross fair market value of all of the assets of the Company immediately prior to such acquisition or acquisitions.

 

1.4       “Code”
means the Internal Revenue Code of 1986, as amended and including the Treasury Regulations and other guidance promulgated or issued
thereunder.

 

1.5       “Disability”
means the Executive’s suffering a sickness, accident or injury which has been determined by the insurance carrier of any
individual or group disability insurance policy covering the Executive, or by the Social Security Administration, to be a disability
rendering the Executive totally and permanently disabled. The Executive must submit proof to the Plan Administrator of the insurance
carrier’s or Social Security Administration’s determination upon the request of the Plan Administrator.

 

1.6       “Good
Reason” means the existence of any of the following without the Executive’s written consent:

 

(a)
A material diminution by the Company in the Executive’s annual base salary.

 

(b)
A material diminution in the Executive’s authority, duties or responsibilities as in effect in the three (3) month period
immediately preceding a Change in Control.

 

(c)
A material diminution in the authority, duties or responsibilities as in effect in the three (3) month period immediately preceding
a Change in Control, of the person to whom the Executive is required to report, including a requirement that the Executive report
to a corporate officer or employee instead of reporting directly to the Board, if the Executive otherwise reported directly to
the Board;

 

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(d)
A material diminution in the budget over which the Executive retains authority as in effect in the three (3) month period immediately
preceding a Change in Control;

 

(e)
the Company requiring the Executive to be based more than fifty (50) miles from where the Executive’s office is located
immediately prior to a Change in Control, except for required travel on the Company’s business, and then only to the extent
substantially consistent with the business travel obligations which the Executive undertook on behalf of the Company during the
90-day period ending on the date of the Change in Control (without regard to travel related to or in anticipation of the Change
in Control); or

 

(f)
any other action or inaction that constitutes a material breach by the Company of this Agreement.

 

The
Executive will have Good Reason to terminate employment only if within ninety (90) days following the Executive’s actual
knowledge of the event which the Executive determines constitutes Good Reason, the Executive notifies the Company in writing that
the Executive has determined a Good Reason exists and specifies the event creating Good Reason; following receipt of the notice,
the Company fails to remedy the event within thirty (30) days; and the Executive’s resignation for Good Reason is effective
within ninety (90) days following the Company’s period for remedy. If such conditions are not met, the Executive will not
have a Good Reason to terminated employment.

 

1.7       “Subsidiary”
means any entity that, along with the Company, would be treated as a single employer under Sections 414(b) and (c) of the Code.

 

1.8       “Successor”
means any entity that assumes the rights and the obligations of the Company by merger, acquisition, or other valid legal succession.

 

1.9       “Termination
Date” shall mean the date of the Executive’s Termination of Employment.

 

1.10      “Termination
of Employment” shall mean Executive’s “separation from service” under Code Section 409A with the Company
or one of its Subsidiaries.

 

Article
2 

Change
in Control Benefit

 

2.1       Change
in Control Benefit.  Subject to the terms and conditions of this Agreement, if within twenty-four (24) months following
a Change in Control, the Executive shall be subject to an involuntary Termination of Employment by the Company other than for
Cause, death, or Disability, or Executive shall initiate a voluntary Termination of Employment for Good Reason, the Company shall
pay to the Executive the benefit specified in this Section 2.1. If a Change in Control occurs, this Agreement

 

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 shall expire on
the second anniversary of such Change in Control; provided, however, that any benefits provided under this Section 2.1
shall continue in effect until fully paid or satisfied.

 

2.1.1       Amount
of Benefit. The benefit under this Section 2.1 is one (1.0) times the Executive’s annual base salary as of the date
of the Change in Control or the Termination Date (whichever is greater).

 

2.1.2       Payment
of Benefit.  The Company shall pay the benefit under this Section 2.1 to the Executive in a lump sum seventy-five
(75) days following the Termination Date provided that, prior to such date the Executive has executed a release of all claims
against the Company, its officers and Directors.

 

2.1.3       Insurance
Benefits.  If a benefit is payable under Section 2.1, then for a period of twelve (12) months following the Termination
Date the Executive shall receive, in addition to the benefit provided in Section 2.1.1 of this Agreement the following benefits
substantially in the form and expense to the Executive as received by the Executive on the Termination Date: (a) medical and dental
insurance; and (b) life insurance.   The provision of medical and dental insurance and the provision of life insurance
benefits pursuant to this Section 2.1.3 shall, however, be subject to the following limitations: (i) the benefits provided during
Executive’s taxable year may not affect the benefits to be provided to Executive in any other taxable year, (ii) reimbursements
or payments must be made on or before the last day of Executive’s taxable year following the taxable year in which the expense
being paid or reimbursed was incurred, and (iii) the right to continued coverage is not subject to liquidation or exchange for
another benefit.

 

It
is understood and agreed that any rights and privileges of the Executive provided by the Consolidated Omnibus Budget Reconciliation
Act of 1986 “(COBRA”), amending the Employee Retirement Income Security Act, the Internal Revenue Code and the Public
Health Services Act, as amended, shall begin immediately following the Termination Date.

 

2.2       Excess
Parachute Payment. Notwithstanding anything to the contrary in this Agreement, the payments made to the Executive under this
Section 2 shall be one dollar ($1.00) less than the amount which would cause the payments to the Executive (including payments
to the Executive which are not included in this Agreement) to be subject to the excise tax imposed by Section 4999 of the Code.
Any reductions in payments under this section will come first from payments under Section 2.1.1 and then from payments under Section
2.1.3

 

2.3       Withholding
& Payroll Taxes. To the extent required by law, the Company shall withhold from other amounts owed to the Executive or
require the Executive to remit to the Company an amount sufficient to satisfy federal, state and local withholding tax requirements
on any payments made to the Executive under this Agreement.  Determinations by the Company as to withholding shall be
binding on the Executive.

 

    4

     

    

 

Article
3 

Miscellaneous

 

3.1       Confidential
Information. The Executive recognizes and acknowledges that the Executive has had, and will continue to have, access to certain
information of the Company and that such information is confidential and constitutes valuable, special and unique property of
the Company. The Executive shall not at any time, either during or subsequent to the Executive’s employment with the Company,
disclose to others, use, copy or permit to be copied, except as directed by law or in pursuance of the Executive’s duties
for or on behalf of the Company, its Successors, assigns or nominees, any Confidential Information of the Company (regardless
of whether developed by the Executive), without the prior written consent of the Company. The term “Confidential Information”
with respect to any person means any secret or confidential information or know-how and shall include, but shall not be limited
to, the plans, customers, costs, prices, uses, and applications of products and services, results of investigations, studies owned
or used by such person, and all products, processes, compositions, computer programs, and servicing, marketing or operational
methods and techniques at any time used, developed, investigated, made or sold by such person, before or during the term of the
Executive’s employment with the Company, that are not readily available to the public or that are maintained as confidential
by such person. The Executive shall maintain in confidence any Confidential Information of third parties received as a result
of the Executive’s employment with the Company in accordance with the Company’s obligations to such third parties
and the policies established by the Company.

 

3.2       No
Competition. If within the twenty-four (24) months following a Change in Control of the Company, the Executive shall have
an involuntary Termination of Employment by the Company other than for Cause, death, or Disability, or shall have a voluntary
Termination of Employment for Good Reason, then and for a period of one (1) year immediately following the Termination Date, the
Executive shall not directly or indirectly engage in any business in which the Company directly or indirectly engages during the
term of the Executive’s employment with the Company; provided, however, that this restriction shall apply only to the geographic
market of the Company. The Executive shall be deemed to engage in a business if the Executive directly or indirectly, engages
or invests in, owns, manages, operates, controls or participates in the ownership, management, operation or control of, is employed
by, associated or in any manner connected with, or renders services or advice to, any business in which the Company directly or
indirectly engages, provided, however, that the Executive may invest in the securities of any enterprise (but without otherwise
participating in the activities of such enterprise) if two conditions are met: (a) such securities are listed on any national
or regional securities exchange or have been registered under Section 12(g) of the Securities Exchange Act of 1934 and (b) the
Executive does not beneficially own (as defined Rule 13d-3 promulgated under the Securities Exchange Act of 1934) in excess of
one percent of the outstanding capital stock of such enterprise. In the event the Executive is eligible for and receives a payment
under this Agreement, for the twelve (12) months after termination of employment, the Executive will not, directly or indirectly,
solicit, induce

 

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 or attempt to solicit or induce any of the Company’s employees or independent contractors for the purpose
of hiring them to work for the Executive or another individual, entity or employer, or for the purpose of inducing them to leave
their employment with the Company, except with the Company’s written consent. In the event the Executive violates this Section
3.2 or Section 3.1, any and all rights of the Executive under this Agreement shall terminate and no further payment shall be due
the Executive, which shall be in addition to, and not in lieu of, any other rights or remedies of the Company under this Agreement.

 

3.3       Termination
of Agreement Prior to Change in Control. At any time after the Effective Date and prior to a Change in Control, the Board
may amend or terminate this Agreement: provided that no such amendment or termination shall be effective until at least
sixty (60) days following written notification of Executive of such termination or amendment of this Agreement. Further, this
Agreement shall automatically terminate if, prior to a Change in Control, Company terminates Executive, whether with or without
Cause, or Executive voluntarily terminates his employment with the Company, whether with or without Good Reason. For avoidance
of doubt, the terms of the Employment Agreement entered into by and between the Company effective as of the same date as of the
Effective Date (the “Employment Agreement”) shall remain in effect in accordance with its terms.

 

3.4       Delivery
of Documents Upon Termination of Employment. The Executive shall deliver to the Company or its designee at the Executive’s
Termination of Employment all correspondence, memoranda, notes, records, drawings, sketches, plans, customer lists, product compositions,
and other documents and all copies thereof, made, composed or received by the Executive, solely or jointly with others, that are
in the Executive’s possession, custody, or control at such Termination of Employment and that are related in any manner
to the past, present, or anticipated business of the Company.

 

3.5       Remedies.
The Executive acknowledges that a remedy at law for any breach or attempted breach of the Executive’s obligations under
Sections 3.1, 3.2 and 3.3 may be inadequate, agrees that the Company may be entitled to specific performance and injunctive and
other equitable remedies in case of any such breach or attempted breach and further agrees to waive any requirement for the securing
or posting of any bond in connection with the obtaining of any such injunctive or other equitable relief. The Company shall have
the right to offset against amounts to be paid to the Executive pursuant to the terms hereof any amounts owed by the Executive
to the Company at the time of payment.

 

The
termination of the Agreement shall not be deemed to be a waiver by the Company of any breach by the Executive of this Agreement
or any other obligation owed the Company, and notwithstanding such a termination the Executive shall be liable for all damages
attributable to such a breach.

 

3.6       Dispute
Resolution.  Subject to the Company’s right to seek injunctive relief in court as provided in Section 3.4
of this Agreement, any dispute, controversy or claim

 

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arising out of or in relation to or connection to this Agreement, including
without limitation any dispute as to the construction, validity, interpretation, enforceability or breach of this Agreement, shall
be settled by arbitration administered by the American Arbitration Association under its National Rules for the Resolution of
Employment Disputes and judgment upon the award rendered by the arbitrator(s) may be entered in any court having jurisdiction
thereof.

 

Any
such Arbitration will be conducted: (i) by a neutral arbitrator appointed by mutual agreement of the parties; or (ii) failing
such agreement, by a neutral arbitrator appointed in accordance with said AAA rules; the Company shall pay the fees and reasonable
expenses of the arbitrator; the parties will be permitted reasonable discovery in accordance with the provisions of the Minnesota
Rules of Civil Procedure, including the production of relevant documents by the other party, the exchange of witness lists, and
a limited number of depositions, including depositions of any expert who will testify at the arbitration; the arbitrator’s
award will include findings of fact and conclusions of law showing the legal and factual bases for the arbitrator’s decision;
the arbitrator will have the authority to award to the prevailing party any remedy or relief that a United States District Court
or court of the State of Minnesota could order or grant if the Dispute had first been brought in that judicial forum, including
costs and attorney’s fees; and unless otherwise agreed by the parties, the place of any arbitration proceeding will be Minneapolis,
Minnesota.

 

3.7       Acknowledgement
of Parties. The Company and the Executive understand and acknowledge that this Agreement means that neither can pursue an
action against the other in a court of law regarding any employment dispute, except for claims involving workers’ compensation
benefits or unemployment benefits, and except as set forth elsewhere in this Agreement, in the event that either party notifies
the other of its demand for arbitration under this Agreement. The Company and the Executive understand and agree that this Section
3.7, concerning arbitration, shall not include any controversies or claims related to any agreements or provisions (including
provisions in this Agreement) respecting confidentiality, proprietary information, non-competition, non-solicitation, trade secrets,
or breaches of fiduciary obligations by the Executive, which shall not be subject to arbitration.

 

3.8       Right
to Consult Counsel.  Executive has been advised of the Executive’s right to consult with an attorney prior
to entering into this Agreement.

 

3.9       Successors
of the Company. The Company will require any Successor by agreement in form and substance satisfactory to the Executive,
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 it if no such succession had taken place.  The failure of the Company to obtain such agreement prior to the
effectiveness of any such succession shall be a breach of this Agreement and shall entitle the Executive to terminate the
Agreement and receive compensation from the Company in the same amount and on the same terms as the Executive would be entitled
hereunder if the Executive terminated the Executive’s employment for Good Reason.  As used in this

 

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Agreement,
“Company” as hereinbefore defined shall include any Successor to its business and/or assets as aforesaid which executes
and delivers the agreement provided for in this Section 3.8 or which otherwise becomes bound by all the terms and provisions of
this Agreement by operation of law.

 

3.10       Executive’s
Heirs, etc. The Executive may not assign the Executive’s rights or delegate the Executive’s duties or obligations
hereunder without the written consent of the Company. This Agreement shall inure to the benefit of and be enforceable by the Executive’s
personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees and legatees. If the Executive
should die while any amounts would still be payable to the Executive hereunder if the Executive had continued to live, all such
amounts, unless other provided herein, shall be paid in accordance with the terms of this Agreement to the Executive’s designee
or, if there be no such designee, to the Executive’s estate.

 

3.11       Notices.
Any notice or communication required or permitted under the terms of this Agreement shall be in writing and shall be delivered
personally, or sent by registered or certified mail, return receipt requested, postage prepaid, or sent by nationally recognized
overnight carrier, postage prepaid, or sent by facsimile transmission to the Company at the Company’s principal office and
facsimile number in Minnetonka, Minnesota, or to the Executive at the address and  facsimile number, if any, appearing
on the books and records of the Company. Such notice or communication shall be deemed given (a) when delivered if personally delivered;
(b) five mailing days after having been placed in the mail, if delivered by registered or certified mail; (c) the business day
after having been placed with a nationally recognized overnight carrier, if delivered by nationally recognized overnight carrier,
and (d) the business day after transmittal when transmitted with electronic confirmation of receipt, if transmitted by facsimile.
Any party may change the address or facsimile number to which notices or communications are to be sent to such party by giving
notice of such change in the manner herein provided for giving notice. Until changed by notice, the following shall be the address
and facsimile number to which notices shall be sent:

 

	If
    to the Company, to:	If
    to the Executive, to:
	 	Attn:
    Chief Executive Officer	 	Attn:
        Eric Ingvaldson

         

	 	PINEAPPLE
ENERGY INC. 

        10900
Red Circle Drive 

        Minnetonka,
MN 55343 

        Fax:
(952) 946-1835 
	 	5505
    Oaklawn Ave Edina, MN 55424

 

3.12       Amendment
or Waiver. No provisions of this Agreement may be modified, waived or discharged unless such waiver, modification or discharge
is agreed to in writing signed by the Executive and such officer as may be specifically designated by the

 

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Board (which shall not
include the Executive). No waiver by either party hereto at any time of any breach by the other party hereto of or compliance
with, any condition or provision of this Agreement to be performed by such other party shall be deemed a waiver of similar or
dissimilar provisions or conditions at the same or at any prior or subsequent time. No agreements or representations, oral or
otherwise, express or implied, with respect to the subject matter hereof have been made by either party, which are not set forth
expressly in this Agreement. This Agreement constitutes the entire agreement between the Company and the Executive as to
the subject matter hereof; provided, however, the Employment Agreement shall remain in effect in accordance with its terms. No
rights are granted to the Executive by virtue of this Agreement other than those specifically set forth herein.

 

3.13       Invalid
Provisions. Should any portion of this Agreement be adjudged or held to be invalid, unenforceable or void, such holding shall
not have the effect of invalidating or voiding the remainder of this Agreement and the parties hereby agree that the portion so
held invalid, unenforceable or void shall if possible, be deemed amended or reduced in scope, or otherwise be stricken from this
Agreement to the extent required for the purposes of validity and enforcement thereof. In this regard, the parties hereto hereby
agree that any judicial authority construing this Agreement shall be empowered to sever any portion of the geographic area or
any prohibited business activity from the coverage of this Agreement, and to reduce the duration of the non-compete period
and to apply the provisions of this Agreement to the remaining portion of the geographic area or the remaining business activities
not to be severed by such judicial authority and to the duration of the non-compete period as reduced by judicial determination.

 

3.14       Survival
of the Executive’s Obligations. The Executive’s obligations under this Agreement shall survive regardless of whether
the Executive incurs a Termination of Employment, voluntarily or involuntarily, by the Company or the Executive, with or without
Cause.

 

3.15       Counterparts.
This Agreement may be executed in one or more counterparts, each of which shall be deemed to be an original but all of which together
will constitute one and the same instrument.

 

3.16       Governing
Law.  This Agreement and any action or proceeding related to it shall be governed by and construed under the laws
of the State of Minnesota.

 

3.17       Captions
and Gender. The use of Captions and Section headings herein is for purposes of convenience only and shall not affect the interpretation
or substance of any provisions contained herein. Similarly, the use of the masculine gender with respect to pronouns in this Agreement
is for purposes of convenience and includes either sex who may be a signatory.

 

3.18       No
guarantee of tax treatment.  Nothing herein shall be construed as an entitlement to or guarantee of any particular
tax treatment to the Executive. This

 

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Agreement is drafted and shall be interpreted to provide for payments that are exempt from,
or that comply with, Code Section 409A.

 

IN
WITNESS WHEREOF, the Executive and a duly authorized representative of the Company have signed this Agreement. 

 

	 EXECUTIVE:   	 	 	COMPANY:
	 	 	 	 
	 	 	 	PINEAPPLE
ENERGY INC. 

	 Eric
    Ingvaldson	 	 	 
	 	 	 	 
	__/s/
        Eric Ingvaldson_______ 

         
	 	By:	/s/ Roger H.D. Lacey

	 	 	 	 
	 	 	 Its:	Chairman

 

    10EX-10.1

  Exhibit 10.1

   

   

   

   

   

  MEMORANDUM

   

   

  To:  	Thomas A. Keuer

   

  From:  	Michael Bristow

   

  Date:	December 8, 2022

   

  Re:	Retention bonus

   

   

   

  In recognition of your continued service with ARCA biopharma, Inc. (the “Company”), we are pleased to offer you the opportunity to receive a cash retention bonus in the amount of $100,000, less applicable withholdings and deductions required by law (the “Retention Bonus”).  This Retention Bonus will be processed and paid to you by the Company via payroll within thirty (30) business days following the earlier to occur of either of the following (the date of occurrence of such event, the “Payment Event Date”), subject to the terms of this letter: (i) a Corporate Transaction (as defined below), or (ii) the date that the board of directors of the Company (the “Board”) approves certain clinical development decisions.

     

  In order to receive the Retention Bonus, you must (i) remain actively and continuously employed in good standing by the Company through the Payment Event Date, and (ii) otherwise comply with the terms and conditions of this letter and the Company’s policies and procedures. In order to be considered in “good standing,” you must have been employed continuously from the date hereof to the Payment Event Date and you must not be the subject of any disciplinary warning, whether written or oral and must not have behaved in a manner that would be grounds for discharge for “Cause” (as defined below).   

    

  Neither the Retention Bonus nor this letter have any bearing on your right to employment with the Company. Your employment remains at-will, meaning that you and the Company may terminate the employment relationship at any time, with or without cause or reason, and with or without notice.  You understand and agree that neither your job performance nor promotions, commendations, bonuses or the like from the Company give rise to or in any way serve as the basis for modification, amendment, or extension, by implication or otherwise, of your at-will employment with the Company. Although your job duties and the Company’s personnel policies and procedures may change from time to time, the “at-will” nature of your employment may only be changed in an express written agreement or memo issued by the Company. For clarity, should 

  4880-2506-7071.4 - 11/29/2022 3:38:11 PM

  

   

  your employment terminate for any reason prior to the Payment Event Date, you will not have earned, and therefore will not receive, the Retention Bonus.  

   

  For purposes of this letter agreement, “Cause” means you have committed or engaged in: (i) misconduct, negligence, theft, fraud, or other illegal or dishonest conduct, any of which are considered to be harmful or potentially harmful to the Company; (ii) refusal, unwillingness, failure, or inability to perform material job duties or habitual absenteeism; (iii) violation of fiduciary duty, violation of any duty of loyalty, or breach of any material term of any agreement between you and the Company; or (iv) violation of any Company policy. 

   

  For purposes of this letter agreement, “Corporate Transaction” means (i) a sale of all or substantially all of the assets of the Company; (ii) a merger, consolidation or reorganization involving the Company if, immediately after the consummation of such merger, consolidation or reorganization, the stockholders of the Company immediately prior thereto do not own, directly or indirectly, either (A) outstanding voting securities representing more than fifty percent (50%) of the combined outstanding voting power of the surviving entity in such merger, consolidation or reorganization or (B) more than fifty percent (50%) of the combined outstanding voting power of the parent of the surviving entity in such merger, consolidation or similar transaction; or (iii) any transaction (including without limitation a merger or reorganization in which the Company is the surviving entity) which results in any person or entity (other than persons who are stockholders or affiliates of the Company immediately prior to the transaction) owning fifty percent (50%) or more of the combined voting power of all classes of stock of the Company, other than the sale by the Company of stock in transactions the primary purpose of which is to raise capital for the Company’s operations and activities.

   

  This letter contains the entire agreement regarding this subject matter and supersedes in their entirety any prior or contemporaneous agreements between you and the Company regarding retention bonuses or payments, whether written, oral, express or implied.

    

  This Agreement may not be amended or modified unless in writing signed by both you and an authorized officer of the Company. This Agreement, for all purposes, shall be construed in accordance with the laws of the State of Colorado without regard to conflicts-of-law principles.

    

  Sincerely,

    

  ARCA BIOPHARMA, Inc.

    

  By:/s/ Michael Bristow

   

  	Dr. Michael Bristow

  CEO

    

    

  4880-2506-7071.4 - 11/29/2022 3:38:11 PM

  

   

  ACCEPTED AND AGREED:

   

  By: /s/ Thomas A. Keuer

   

  Thomas A. Keuer

   	Date: December 8, 2022

    

   

  Confidential

   

   

  4880-2506-7071.4 - 11/29/2022 3:38:11 PM

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