Document:

Offer Letter - Bruce J Barclay

 Exhibit 10.63 

HANSEN MEDICAL, INC. 

May 26, 2010 
 Bruce J.
Barclay 
 Dear Bruce: 

Hansen Medical, Inc. (the “Company”) is pleased to offer you employment on the following terms: 

1. Position. Your title will be President & Chief Executive Officer, and you will report to the Company’s Board of
Directors. This is a full-time position. In addition, the Board of Directors will appoint you as a member of the Board of Directors on your first day of employment with the Company. While you render services to the Company, you will not engage in
any other employment, consulting or other business activity (whether full-time or part-time) that would create a conflict of interest with the Company. In addition, you agree that during your employment with the Company you will serve as a director
of no more than one other corporation without the prior consent of the Company’s Board of Directors. By signing this letter agreement, you confirm to the Company that you have no contractual commitments or other legal obligations that would
prohibit you from performing your duties for the Company. 
 2. Cash Compensation. The Company will
pay you a starting salary at the rate of $450,000 per year, payable in accordance with the Company’s standard payroll schedule. This salary will be reviewed annually and will be subject to adjustment pursuant to the Company’s employee
compensation policies in effect from time to time. In addition, you will be eligible for an incentive bonus of up to 40% of your base salary for the Company’s 2010 fiscal year, prorated based on the number of days you are employed by the
Company during that fiscal year (the “Target Bonus”). You will be eligible to earn the Target Bonus based on criteria to be mutually agreed to by you and the Compensation Committee and approved by the Company’s Board of Directors
prior to your first day of employment. The Company’s Board of Directors will determine whether and to what extent the bonus criteria have been achieved. With respect to any bonus criteria that are based on the Company’s 2010 operating
plan: (i) no bonus will be earned related to such bonus criteria unless you achieve at least 90% of the applicable bonus criteria, (ii) 75% of the related portion of the Target Bonus will be earned upon achievement of 90% of the bonus
criteria, (iii) 100% of the related portion of the Target Bonus will be earned upon achievement of 100% of the bonus criteria, and (iv) in the event of achievement between 90-100% of the bonus criteria, the amount of the related portion of
your Target Bonus will be determined on a linear basis. Any bonus will be paid within
2 1/2 months after the close of the fiscal year, but
only if you are still employed by the Company at the time of payment. The determinations of the Company’s Board of Directors with respect to your bonus will be final and binding. For future fiscal years you will be considered for a

 Bruce J. Barclay 

May 26, 2010 
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target bonus of at least 40% of your base salary, which target bonus and related bonus criteria will be approved by the Board of Directors at the beginning of such fiscal years. 

3. Employee Benefits. As a regular employee of the Company, you will be eligible to participate in a number of Company-sponsored
benefits. In addition, you will be entitled to paid vacation in accordance with the Company’s vacation policy, as in effect from time to time. 

4. Relocation Benefits. In order to assist you in relocating to the San Francisco Bay Area and to, in part, mitigate the impact of
the higher San Francisco Bay Area housing costs, the Company will pay you a housing and relocation allowance of $15,417 per month. This amount will be paid in accordance with the Company’s standard payroll schedule for the first 12 months of
your employment. 
 5. Equity Awards. 

(a) Stock Option. You will be granted an option to purchase 1,700,000 shares of the Company’s
Common Stock (the “Option”). The Option will be granted on your first day of employment with the Company (the “Grant Date”). The exercise price per share of the Option will be equal to the fair market value of the Company’s
Common Stock on the date the Option is granted. You will vest in
1/8th of the Option shares after 6 months of continuous
employment, and the balance will vest in equal monthly installments over the next 42 months of continuous employment, as described in the applicable Stock Option Agreement. The Company intends to grant the Option as an “inducement grant”
(within the meaning of Nasdaq Marketplace Rule 5635(c)(4)). While the Option will be granted outside of the Company’s 2006 Equity Incentive Plan (the “Plan”), the other terms and conditions applicable to the Option will be consistent
with those applicable to Options granted under the Plan, as described in the applicable Stock Option Agreement. 
 (b)
Performance Options. You will be granted an option to purchase an additional 200,000 shares of the Company’s Common Stock (the “Performance Option”). The Performance Option will be granted on the Grant Date. The exercise
price per share of the Performance Option will be equal to the fair market value of the Company’s Common Stock on the date the Performance Option is granted. The Performance Option will be subject to the terms and conditions applicable to
options granted under the Plan, as described in the Plan and the applicable Stock Option Agreement. Vesting of the Performance Option will be contingent on the achievement of certain milestones to be mutually agreed to by you and the Compensation
Committee and approved by the Company’s Board of Directors prior to the Grant Date, as well as your continuous employment through the applicable milestone vesting date, as further described in the applicable Stock Option Agreement. The
Company’s Board of Directors shall determine whether and when a milestone has been achieved, which date of such determination shall be the vesting date with respect to the related option shares. To the extent a milestone is not met by the
deadline date, the Performance Option will expire with respect to the related option shares 90 days after the applicable deadline date or, if sooner, the date the Board determines that (i) the milestone was not achieved, and (ii) the
unvested option shares shall expire and no longer be subject to the Performance Option. 

 Bruce J. Barclay 

May 26, 2010 
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 (c) Initial Restricted Stock Units. You will be granted restricted stock
units representing 50,000 shares of the Company’s Common Stock on the Grant Date. The award will be subject to the terms and conditions applicable to restricted stock unit awards granted under the Plan, as described in the Plan and the
applicable Restricted Stock Unit Award Agreement. The award will vest in equal quarterly installments over three years of continuous employment, as described in the applicable Restricted Stock Unit Agreement. 

(d) Additional Restricted Stock Units. Upon completion of 12 months of continuous employment, you will be granted
restricted stock units representing an additional 50,000 shares of the Company’s Common Stock. The award will be subject to the terms and conditions applicable to restricted stock unit awards granted under the Plan, as described in the Plan and
the applicable Restricted Stock Unit Award Agreement. The award will vest in equal quarterly installments over three years of continuous employment from your 12-month anniversary, as described in the applicable Restricted Stock Unit Agreement.

 6. Severance Benefits. The Company will offer you the opportunity to enter into a Retention Agreement in the form
attached hereto as Exhibit A. 
 7. Proprietary Information and Inventions Agreement. Like all Company employees,
you will be required, as a condition of your employment with the Company, to sign the Company’s standard Proprietary Information and Inventions Agreement, a copy of which is attached hereto as Exhibit B. 

8. Legal Fees. The Company shall promptly pay all reasonable costs and expenses (including fees and disbursements of legal
counsel) up to $15,000 incurred by you in negotiating the terms and conditions of this letter agreement. 
 9. Employment
Relationship. Employment with the Company is for no specific period of time. Your employment with the Company will be “at will,” meaning that either you or the Company may terminate your employment at any time and for any reason, with
or without cause. Any contrary representations that may have been made to you are superseded by this letter agreement. This is the full and complete agreement between you and the Company on this term. Although your job duties, title, compensation
and benefits, as well as 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 signed by you and a duly authorized
officer of the Company (other than you). 
 10. Tax Matters. 

(a) Withholding. All forms of compensation referred to in this letter agreement are subject to reduction to reflect applicable
withholding and payroll taxes and other deductions required by law. 
 (b) Tax Advice. You are encouraged to obtain your
own tax advice regarding your compensation from the Company. You agree that the Company does not have a duty to design its compensation policies in a manner that minimizes your tax liabilities, and you will not

 Bruce J. Barclay 

May 26, 2010 
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make any claim against the Company or its Board of Directors related to tax liabilities arising from your compensation. 

11. Interpretation, Amendment and Enforcement. This letter agreement and Exhibit A and Exhibit B constitute the complete
agreement between you and the Company, contain all of the terms of your employment with the Company and supersede any prior agreements, representations or understandings (whether written, oral or implied) between you and the Company. This letter
agreement may not be amended or modified, except by an express written agreement signed by both you and a duly authorized officer of the Company. The terms of this letter agreement and the resolution of any disputes as to the meaning, effect,
performance or validity of this letter agreement or arising out of, related to, or in any way connected with, this letter agreement, your employment with the Company or any other relationship between you and the Company (the “Disputes”)
will be governed by California law, excluding laws relating to conflicts or choice of law. You and the Company submit to the exclusive personal jurisdiction of the federal and state courts located in Santa Clara County, California in connection with
any Dispute or any claim related to any Dispute. 
 * * * * * 

 Bruce J. Barclay 

May 26, 2010 
  Page
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 We hope that you will accept our offer to join the Company. You may indicate your
agreement with these terms and accept this offer by signing and dating both the enclosed duplicate original of this letter agreement and the enclosed Proprietary Information and Inventions Agreement and returning them to me. This offer, if not
accepted, will expire at the close of business on May 26, 2010. As required by law, your employment with the Company is contingent upon your providing legal proof of your identity and authorization to work in the United States. Your employment
is also contingent upon your starting work with the Company on or before June 9, 2010. 
  

			
	Very truly yours,
	
	HANSEN MEDICAL, INC.
		
		 	 /S/ RUSSELL C. HIRSCH, M.D., PH.D.

	By:	 	 Russell C. Hirsch, M.D., Ph.D.

		 	 On behalf of the Board of Directors

I have read and accept this employment offer: 
  

			
	     /S/ BRUCE J
BARCLAY

		 	Signature of Bruce J. Barclay
		
	Dated:	 	 May 26, 2010

Attachment 
 Exhibit A: Retention
Agreement 
 Exhibit B: Proprietary Information and Inventions AgreementRetention Agreement - Bruce J Barclay

 Exhibit 10.64 

RETENTION AGREEMENT 

This Retention Agreement (the “Agreement”) is entered into as of May 26, 2010 (the “Effective
Date”), by and between Bruce Barclay (the “Executive”) and Hansen Medical, Inc. (the “Corporation”). 

AGREEMENT 
 In
consideration of the promises and mutual covenants set forth herein, the parties hereby agree as follows: 
 1.
Definitions. As used in this Agreement, unless the context requires a different meaning, the following terms shall have the meanings set forth herein: 

(a) “Board” shall mean the Board of Directors of the Corporation. 

(b) “Cause” shall mean any of the following: (i) an intentional unauthorized use or disclosure of the
Corporation’s confidential information or trade secrets, which use or disclosure causes material harm to the Corporation, (ii) a material breach of any agreement between Executive and the Corporation, (iii) a material failure to
comply with the Corporation’s written policies or rules, (iv) conviction of, or plea of “guilty” or “no contest” to, a felony under the laws of the United States or any state thereof, (v) gross negligence or
willful misconduct or (vi) a continued failure to perform assigned duties after receiving written notification of such failure from the Board. Executive shall not be deemed to have been terminated for Cause unless and until there shall have
been delivered to Executive a Notice of Termination and copy of a resolution duly adopted by the affirmative vote of not less than three-quarters of those members of the Board who are not then employees of the Corporation at a meeting of the Board
called and held for the purpose (after reasonable notice to Executive and an opportunity for Executive, together with Executive’s counsel, to be heard before the Board), finding that, in the good faith opinion of the Board, Executive was guilty
of the conduct set forth in the first sentence of this Section 1(b) and specifying the particulars thereof in detail. 

(c) “Change in Control” means the occurrence of any of the following events: 

(i) a transaction or series of transactions (other than an offering of the Corporation’s Common Stock to the general public through
a registration statement filed with the Securities and Exchange Commission) whereby any “person” or related “group” of “persons”, as such terms are used in Sections 13(d) and 14(d)(2) of the Exchange Act (other than the
Corporation, any of its subsidiaries, an employee benefit plan maintained by the Corporation or any of its subsidiaries or a “person” that, prior to such transaction, directly or indirectly controls, is controlled by, or is under common
control with, the Corporation) directly or indirectly acquires beneficial ownership (within the meaning of Rule 13d-3 under the Exchange Act) of securities of the Corporation possessing more than 50% of the total combined voting power of the
Corporation’s securities outstanding immediately after such acquisition; or 
 (ii) During any period of two consecutive
years , individuals who, at the beginning of such period, constitute the Board together with any new director(s) (other than a 

 
director designated by a person who shall have entered into an agreement with the Corporation to effect a transaction described in Section 1(c)(i) or Section 1(c)(iii)) whose election
by the Board or nomination for election by the Corporation’s stockholders was approved by a vote of at least two-thirds of the directors then still in office who either were directors at the beginning of the two-year period or whose election or
nomination for election was previously so approved, cease for any reason to constitute a majority thereof; or 
 (iii) The
consummation by the Corporation (whether directly involving the Corporation or indirectly involving the Corporation through one or more intermediaries) of (x) a merger, consolidation, reorganization, or business combination or (y) a sale
or other disposition of all or substantially all of the Corporation’s assets in any single transaction or series of related transactions, in each case, other than a transaction: 

(A) Which results in the Corporation’s voting securities outstanding immediately before the transaction continuing
to represent (either by remaining outstanding or by being converted into voting securities of the Corporation or the person that, as a result of the transaction, controls, directly or indirectly, the Corporation or owns, directly or indirectly, all
or substantially all of the Corporation’s assets or otherwise succeeds to the business of the Corporation (the Corporation or such person, the “Successor Entity”)) directly or indirectly, at least a majority of the combined
voting power of the Successor Entity’s outstanding voting securities immediately after the transaction, and 

(B) After which no person or group beneficially owns voting securities representing 50% or more of the combined voting
power of the Successor Entity; provided, however, that no person or group shall be treated for purposes of this Section 1(c)(iii)(B) as beneficially owning 50% or more of combined voting power of the Successor Entity solely as a result of the
voting power held in the Corporation prior to the consummation of the transaction. 
 (d) “COBRA” shall mean
the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended. 
 (e) “COBRA Coverage” shall mean the
coverage under the Corporation’s medical, dental and/or vision benefit plans that Executive and/or Executive’s eligible dependents participates following a termination of employment pursuant to COBRA. 

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

(g) “Covered Termination” shall mean (i) an Involuntary Termination Without Cause or (ii) a voluntary
termination of employment by Executive for Good Reason, provided that in either case, the termination constitutes a Separation from Service. 

(h) “Date of Termination” shall mean (i) if Executive’s employment is terminated due to Executive’s
death, the date of Executive’s death; and (ii) if Executive’s employment is terminated for any reason other than death, the date specified in the Notice of Termination. 

 

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 (i) “Exchange Act” shall mean the Securities Exchange Act of 1934, as
amended. 
 (j) “Good Reason” shall mean Executive’s resignation due to any of the following events which
occurs without Executive’s written consent, provided that the requirements regarding advance notice and an opportunity to cure set forth below are satisfied: (i) a material diminution of Executive’s base salary, other than in
connection with an across-the-board reduction in the compensation of the Company’s senior management that does not disproportionately affect Executive, (ii) a material diminution of Executive’s authority, duties or responsibilities,
(iii) a requirement to report to anyone other than the Board except for a requirement to report to the Chief Executive Officer of a successor to the Corporation as a result of Executive’s position as an officer of a subsidiary or division
of a successor following a Change in Control, (iv) a material change in the geographic location at which Executive must perform services for the Corporation, or (v) any other action or inaction of the Corporation that constitutes a
material breach of this Agreement or the letter agreement setting forth the terms and conditions of Executive’s employment with the Corporation and entered into by and between Executive and the Corporation as of the Effective Date (each of (i),
(ii), (iii), (iv) and (v) a “Good Reason Condition”). In order for Executive to resign for Good Reason, Executive must provide written notice to the Corporation of the existence of the Good Reason Condition within 90 days
of the initial existence of such Good Reason Condition. Upon receipt of such notice of the Good Reason Condition, the Corporation will be provided with a period of 30 days during which it may remedy the Good Reason Condition and not be required to
provide for the payments and benefits described herein as a result of such proposed resignation due to the Good Reason Condition specified in the Notice of Termination. If the Good Reason Condition is not remedied within the period specified in the
preceding sentence, Executive may resign based on the Good Reason Condition specified in the Notice of Termination effective no later than 180 days following the initial existence of such Good Reason Condition. 

(k) “Involuntary Termination Without Cause” shall mean termination of Executive’s employment by the Corporation
other than for Cause. For purposes of this Agreement, an Involuntary Termination Without Cause shall only include a termination by the Corporation where the Executive was willing and able to continue performing services within the meaning of
Treasury Regulation Section 1.409A-1(n)(1). 
 (l) “Notice of Termination” shall mean a notice from
Executive or the Corporation to the other party regarding the intent to terminate Executive’s employment. To the extent applicable, the Notice of Termination shall indicate the specific termination provision in this Agreement (if any) relied
upon and shall set forth in reasonable detail the facts and circumstances claimed to provide a basis for termination of Executive’s employment under the provision so indicated. 

(m) “Release” shall mean a release by Executive of all claims arising out of Executive’s employment with the
Corporation or the termination thereof, in a form reasonably acceptable to the Corporation. 
  

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 (n) “Separation from Service” means Executive’s termination of
employment or service which constitutes a “separation from service” within the meaning of Treasury Regulation Section 1.409A-1(h). 

2. Notice. 

(a) Notice of Termination. Any termination of Executive’s employment by the Corporation or by Executive (other than
termination due to Executive’s death, which shall terminate Executive’s employment automatically) shall be communicated by a written Notice of Termination to the other party hereto in accordance with Section 2(b) and shall set forth
the Date of Termination, which shall not be earlier than the date on which the Notice of Termination is provided. 
 (b)
Manner of Notice. For purposes of this Agreement, a Notice of Termination, as well as other notices and communications provided for in this Agreement, shall be in writing and shall be deemed to have been duly given when delivered or mailed by
United States certified or registered mail, return receipt requested, postage prepaid, addressed to the Corporation at its principal office or to Executive at the address in the Corporation’s payroll records, provided that all notices to the
Corporation shall be directed to the attention of its Secretary, or to such other address as either party may have furnished to the other in writing in accordance herewith, except that notice of change of address shall be effective only upon
receipt. 
 3. Compensation upon Certain Terminations. 

(a) Termination for Any Reason. Upon Executive’s termination of employment with the Corporation for any reason, Executive
shall be paid all amounts earned or accrued but unpaid as of the Executive’s termination of employment, including (i) base salary, (ii) reimbursement for reasonable and necessary expenses incurred by the Executive on behalf of the
Corporation during the period ending on the Date of Termination, (iii) pay for unused vacation time, (iv) any bonuses and incentive compensation earned through the Date of Termination, and (v) reimbursement for any unused amounts
deposited in the Corporation’s ESPP. 
 (b) Covered Termination More Than Three Months Prior to a Change in Control or
More Than Twelve Months After a Change in Control. If Executive’s employment with the Corporation is terminated due to a Covered Termination which occurs more than three (3) months prior to a Change in Control or more than twelve
(12) months following a Change in Control, and Executive satisfies the conditions described in Section 3(d) below, then Executive shall be entitled to the following severance benefits: 

(i) Severance Payment. Executive shall be entitled to a lump-sum severance payment equal to twelve
(12) months’ worth of the Executive’s then-current annual base salary compensation (measured as of the Date of Termination), which shall be paid on the
60th day after Executive’s Date of Termination.

 (ii) Bonus Payment. Executive shall be entitled to a lump-sum payment equal to the incentive bonus that Executive
would have earned for the fiscal year prior to the Date of Termination (to the extent that such incentive bonus has not been paid as of the 

 

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Termination Date) had Executive been employed on the payment date of such bonus, paid no later than
March 15th of the year in which the Date of
Termination occurs. 
 (iii) Continued Benefits. The Corporation shall pay COBRA Coverage for Executive and
Executive’s dependents for the period beginning on the Date of Termination and extending through the earlier of either (A) the date that the Company has paid twelve (12) months of COBRA premiums, or (B) the first day of
Executive’s eligibility to participate in a comparable group health plan maintained by a subsequent employer. 
 (c)
Covered Termination Within Three Months Prior to or Twelve Months After a Change in Control. If Executive’s employment with the Corporation is terminated due to a Covered Termination which occurs within three (3) months prior to, or
twelve (12) months following, a Change in Control, and Executive satisfies the conditions described in Section 3(d) below, then Executive shall be entitled to the following severance benefits: 

(i) Acceleration of Equity Awards. Executive shall become vested with respect to one hundred percent (100%) of the unvested
portion of any options to purchase the Corporation’s capital stock that Executive then holds and the restrictions with respect to one hundred percent (100%) of any restricted stock, restricted stock unit or other equity award with regard
to the Corporation’s capital stock that Executive then holds shall immediately lapse. 
 (ii)
Severance Payment. Executive shall be entitled to a lump-sum severance payment equal to twelve (12) months’ worth of the Executive’s then-current annual base salary compensation (measured as of the Date of Termination), which
shall be paid on the 60th day after Executive’s Date
of Termination. 
 (iii) Bonus Payment. Executive shall be entitled to a lump-sum payment equal to
the incentive bonus that Executive would have earned for the fiscal year prior to the Date of Termination (to the extent that such incentive bonus has not been paid as of the Termination Date) had Executive been employed on the payment date of such
bonus, paid no later than March 15th of the year in
which the Date of Termination occurs. 
 (iv) Continued Benefits. The Corporation shall pay COBRA Coverage for Executive
and Executive’s dependents for the period beginning on the Date of Termination and extending through the earlier of either (A) the date that the Company has paid twelve (12) months of COBRA premiums, or (B) the first day of
Executive’s eligibility to participate in a comparable group health plan maintained by a subsequent employer. 
 (d)
Preconditions to Severance Benefits. As a condition to Executive’s receipt of any benefits described in this Section 3 (other than in Section 3(a)), Executive shall be required (i) if requested by the Board, to resign
immediately as a member of the Board and as a member of the Boards of Directors of all subsidiaries of the Company, and (ii) to execute a Release within fifty (50) days following the Date of Termination and not revoke such Release within
any period permitted under applicable law. Such Release shall specifically relate to all of Executive’s rights and claims in existence at the time of such execution but shall exclude any continuing obligations the Corporation may have to
Executive following the date of termination 
  

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under this Agreement or any other agreement providing for obligations to survive Executive’s termination of employment. 

4. Section 409A. For purposes of Code Section 409A, each payment provided for hereunder is hereby designated as a
separate payment, including each payment made pursuant to a schedule of installment payments which shall be treated as a right to receive a series of separate payments. Notwithstanding anything stated herein to the contrary, each of the payments
provided in connection with Executive’s Separation from Service (other than COBRA payments) is intended to be exempt from Code Section 409A pursuant to Treasury Regulation Section 1.409A-1(b)(4) or Treasury Regulation
Section 1.409A-1(b)(9)(iii), as applicable. To the extent that any payment is exempt pursuant to Treasury Regulation Section 1.409A-1(b)(9)(iii), it will in any event be paid no later than the last day of Executive’s second taxable
year following the taxable year in which Executive’s Separation from Service has occurred. Notwithstanding any provision to the contrary in this Agreement, if Executive is deemed by the Corporation at the time of his Separation from Service to
be a “specified employee” for purposes of Section 409A(a)(2)(B)(i) of the Code, to the extent delayed commencement of any portion of the benefits to which Executive is entitled under this Agreement is required in order to avoid a
prohibited distribution under Section 409A(a)(2)(B)(i) of the Code, such portion of Executive’s benefits shall not be provided to Executive prior to the earlier of (a) the expiration of the six-month period measured from the date of
Executive’s Separation from Service or (b) the date of Executive’s death. Upon the first business day following the expiration of the applicable Code Section 409A(a)(2)(B)(i) period, all payments deferred pursuant to this
Section 4 shall be paid in a lump sum to Executive, and any remaining payments due under the Agreement shall be paid as otherwise provided herein. 

5. Excise Tax Limitation. 

(a) Notwithstanding anything contained in this Agreement to the contrary, in the event that the benefits provided by this Agreement,
together with all other payments and the value of any benefits received or to be received by Executive (“Payments”), constitute “parachute payments” within the meaning of Section 280G of the Code, and, but for this
Section 5, would be subject to the excise tax imposed by Section 4999 of the Code (the “Excise Tax”), then the Payments shall be made to Executive either (i) in full or (ii) as to such lesser amount as would
result in no portion of the Payments being subject to the Excise Tax, whichever of the foregoing amounts, taking into account the applicable federal, state and local income taxes and the Excise Tax, results in the receipt by Executive on an
after-tax basis, of the greatest amount of benefits, notwithstanding that all or some portion of the Payments may be subject to the Excise Tax. The Corporation shall reduce or eliminate the Payments by first reducing or eliminating cash payments and
then by reducing those payments or benefits which are not payable in cash, in each case in reverse order beginning with payments or benefits which are to be paid the farthest in time from the Determination (as hereinafter defined). 

(b) Unless the Corporation and Executive otherwise agree in writing, an initial determination as to whether the Payments shall be reduced
and the amount of such reduction shall be made, at the Corporation’s expense, by the accounting firm that is the Corporation’s independent accounting firm as of the date of the Change in Control (the “Accounting Firm”).
The Accounting Firm shall provide its determination (the “Determination”), together with 
  

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detailed supporting calculations and documentation, to the Corporation and Executive within twenty (20) days of the Date of Termination if applicable, or such other time as requested by the
Corporation or by Executive (provided Executive reasonably believes that Executive will receive Payments which may be subject to the Excise Tax), and if the Accounting Firm determines that there is substantial authority (within the meaning of
Section 6662 of the Code) that no Excise Tax is payable by Executive with respect to a Payment or Payments, it shall furnish Executive with an opinion reasonably acceptable to Executive that no Excise Tax will be imposed with respect to any
such Payment or Payments. Within ten (10) days of the delivery of the Determination to Executive, Executive shall have the right to dispute the Determination (the “Dispute”). If there is no Dispute, the Determination shall be
binding, final and conclusive upon the Corporation and Executive. 
 (c) As a result of the uncertainty in the application of
Sections 4999 and 280G of the Code, it is possible that the Payments to be made to, or provided for the benefit of, Executive either will be greater (an “Excess Payment”) or less (an “Underpayment”) than the amounts
provided for by the limitation contained in Section 5(a). 
 (i) If it is established pursuant to a final determination of
a court or an Internal Revenue Service (the “IRS”) proceeding which has been finally and conclusively resolved that an Excess Payment has been made, such Excess Payment shall be deemed for all purposes to be a loan to Executive made
on the date Executive received the Excess Payment and Executive shall repay the Excess Payment to the Corporation on demand (but not less than ten (10) days after written notice is received by Executive) together with interest on the Excess
Payment at the “Applicable Federal Rate” (as defined in Section 1274(d) of the Code) from the date of Executive’s receipt of such Excess Payment until the date of such repayment. 

(ii) In the event that it is determined by (A) the Accounting Firm, the Corporation (which shall include the position taken by the
Corporation, or together with its consolidated group, on its federal income tax return) or the IRS, (B) pursuant to a determination by a court, or (C) upon the resolution to Executive’s satisfaction of the Dispute that an Underpayment
has occurred, the Corporation shall pay an amount equal to the Underpayment to Executive within ten (10) days of such determination or resolution, together with interest on such amount at the Applicable Federal Rate from the date such amount
would have been paid to Executive until the date of payment. 
 6. Successors; Binding Agreement. 

(a) The Corporation shall require any successor (whether direct or indirect, by purchase, merger, consolidation or otherwise) to all or
substantially all of the business and/or assets of the Corporation to expressly assume and agree to perform this Agreement in the same manner and to the same extent that the Corporation would be required to perform it if no such succession had taken
place. Unless expressly provided otherwise, “Corporation” as used herein shall mean the Corporation as defined in this Agreement and any successor to its business and/or assets as aforesaid. 

(b) This Agreement shall inure to the benefit of and be enforceable by Executive and Executive’s personal or legal representatives,
executors, administrators, 
  

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successors, heirs, distributees, devisees and legatees. If Executive should die while any amount would still be payable to Executive hereunder had Executive continued to live, all such amounts,
unless otherwise provided herein, shall be paid in accordance with the terms of this Agreement to Executive’s devisee, legatee or other designee or, if there is no such designee, to Executive’s estate. 

7. Miscellaneous. 

(a) Modification or Amendment. No provision of this Agreement may be modified or amended unless such modification or amendment is
agreed to in writing and signed by Executive and an authorized officer of the Corporation as may be specifically designated by the Board or a committee thereof. 

(b) Waiver. 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. 

(c) Complete Agreement. This Agreement constitutes the entire agreement between Executive and the Corporation and is the complete,
final and exclusive embodiment of their agreement with regard to this subject matter, and this Agreement shall supersede any prior or contemporaneous written or oral agreements regarding this subject matter. 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 expressly set forth in this Agreement. 

(d) Non-Exclusivity of Rights. Notwithstanding Section 7(c), nothing in this Agreement shall prevent or limit
Executive’s continuing or future participation in any benefit, bonus, incentive or other plan or program provided by the Corporation (except for any severance or termination policies, plans, programs or practices) and for which Executive may
qualify, nor shall anything herein limit or reduce such rights as Executive may have under any other agreements with the Corporation (except for any severance, termination or other agreement regarding the subject matter of this Agreement). Amounts
which are vested benefits or which Executive is otherwise entitled to receive under any plan or program of the Corporation shall be payable in accordance with such plan or program, except as explicitly modified by this Agreement. 

(e) Governing Law. The validity, interpretation, construction and performance of this Agreement shall be governed by the laws of
the State of California without regard to its conflicts of law principles. 
 (f) Statutory References. All references to
sections of the Exchange Act or the Code shall be deemed also to refer to any successor provisions to such sections. 
 (g)
Tax Withholding. Any payments provided for hereunder shall be paid net of any applicable withholding required under federal, state or local law. 

(h) Section Headings. The section headings contained in this Agreement are for convenience only, and shall not affect the
interpretation of this Agreement. 
  

 8 

 (i) Severability. The invalidity or unenforceability of any provision of this
Agreement shall not affect the validity or enforceability of any other provision of this Agreement, which shall remain in full force and effect. 

(j) Counterparts. This Agreement may be executed in several counterparts, each of which shall be deemed to be an original but all
of which together shall constitute one and the same instrument. 
 8. Arbitration. The parties hereby agree that any and
all claims or controversies regarding this Agreement shall be resolved, to the fullest extent permitted by law, by final, binding and confidential arbitration in Palo Alto, California conducted before a single arbitrator by Judicial Arbitration and
Mediation Services/Endispute (“JAMS”) or its successor, under the then applicable JAMS rules. By agreeing to this arbitration procedure, both parties waive the right to resolve any such dispute through a trial by jury or judge or by
administrative proceeding. The arbitrator shall: (a) have the authority to compel adequate discovery for the resolution of the dispute and to award such relief as would otherwise be permitted by law; and (b) issue a written arbitration
decision including the arbitrator’s essential findings and conclusions and a statement of the award. The Corporation shall pay all of JAMS’ arbitration fees. Nothing in this Agreement shall prevent either party from obtaining injunctive
relief in court if necessary to prevent irreparable harm pending the conclusion of any arbitration. 
 9. Fees and
Expenses. In connection with a Covered Termination which occurs within twelve (12) months after a Change in Control, the Corporation shall pay all reasonable legal fees and related expenses (including the costs of experts, evidence and
counsel) incurred by Executive as they become due as a result of (a) Executive seeking to obtain or enforce any right or benefit provided by this Agreement (including, but not limited to, any such fees and expenses incurred in connection with
the Dispute whether as a result of any applicable government taxing authority proceeding, audit or otherwise), and (b) Executive’s hearing before the Board as contemplated in Section 1(b) of this Agreement. To the extent that any
reimbursements payable to Executive pursuant to this Section 9 are subject to the provisions of Section 409A of the Code, such reimbursements shall be paid to Executive no later than December 31 of the year following the year in which
the cost was incurred, the amount of expenses reimbursed in one year shall not affect the amount eligible for reimbursement in any subsequent year, and Executive’s right to reimbursement under this Section 9 will not be subject to
liquidation or exchange for another benefit. 
 10. Settlement of Claims. The Corporation’s obligation to make the
payments provided for in this Agreement and otherwise to perform its obligations hereunder shall not be affected by any circumstances, including, without limitation, any set-off, counterclaim, recoupment, defense or other right which the Corporation
may have against Executive or others. 
 11. At-Will Employment. Nothing contained in this Agreement shall
(a) confer upon Executive any right to continue in the employ of the Corporation, (b) constitute any contract or agreement of employment, or (c) interfere in any way with the at-will nature of Executive’s employment with the
Corporation. 
  

 9 

 IN WITNESS WHEREOF, the parties have executed this Agreement as of the Effective Date.

  

			
	EXECUTIVE
	
	     /S/ BRUCE BARCLAY

	Bruce Barclay
	
	HANSEN MEDICAL, INC.
	
	     /S/ RUSSELL C. HIRSCH, M.D.,
PH.D.

		
	By:	 	Russell C. Hirsch, M.D., Ph.D.
		 	On behalf of the Board of Directors

  

 10

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