Offer Letter of Employment with Pam Strayer, dated October 31, 2019

Exhibit 10.18

An annual base salary of $450,000, paid on a semi-monthly basis, less all applicable withholding and deductions. Currently, the Company's salary payroll dates are the 15^th and the last working day of each month.

The opportunity to earn an annual, discretionary bonus of up to 75% of your base salary (less all applicable withholding and deductions). This bonus is based on the Company's overall performance to be determined by the Company in its sole discretion and upon your successful completion of full year objectives and individual performance. The Company may determine in its sole discretion to pay the bonus in cash, stock, restricted stock units or other equity awards. The bonus will be prorated to your start date in your first year of employment and you must be an employee of the Company by October 1^st to be eligible for the bonus payment. You must remain an employee of the Company and be in good performance standing through each bonus payment date in order to receive your bonus.

A signing bonus of $50,000, less all applicable withholding and deductions, to be paid on the last working day of the third month anniversary of your start date.

A benefits package (subject to eligibility) which includes medical, dental, and vision coverage. You may also be eligible to participate in Quotient’s 401(k) plan, which currently includes a company match of up to $6,000 annually. The complete benefits package is outlined in the attached benefits summary.

Subject to the approval of Quotient's Board of Directors (the "Board") or its Compensation Committee (the "Comp Committee"), you will be granted a number of restricted stock units (the "RSUs") to acquire a number of shares of Quotient's Common Stock equal to $1,500,000 divided by the stock's closing price on the first calendar day of the month following the month in which the Comp Committee approved the grant. The RSUs will be subject to the terms and conditions applicable to awards granted under Quotient's equity incentive plan ("Plan"), as described in the Plan and the applicable award agreement. The RSUs will vest twenty-five percent (25%) of the shares on the one (1) year anniversary of grant date or on the date as determined by the Comp Committee (the "Vesting Commencement Date"), and six and ¼ percent (6.25%) of the shares every three (3) months thereafter on the three-month anniversary date of the Vesting Commencement Date, as further described in the Plan and the applicable award agreement. No right to any stock is earned or accrued until such time that vesting occurs, nor does the grant confer any right to continue vesting or employment.

Subject to the approval of the Board or the Comp Committee, you will be granted an option to purchase a number of shares of Quotient's Common Stock having a Black-Scholes value of $1,500,000 based on the the stock's closing price on the first calendar day of the month following the month in which the Comp Committee approved the grant ("Option"). The exercise price per share will be equal to the fair market value per share on the date the Option is granted, which will be the first calendar day of the month following the month in which the Comp Committee approved the grant. The Option will be subject to the terms and conditions applicable to options granted under the Plan and the applicable stock option agreement. Twenty-five percent (25%) of the shares subject to the Option vest on the one (1) year anniversary of the Vesting Commencement Date, and one forty-eighth (1/48) of the shares subject to the Option will vest each month thereafter on the same day of the month as the Vesting Commencement Date, as further described in the Plan and the applicable stock option agreement.

Subject to the approval of the Board or the Comp Committee, and subject to the execution of the enclosed Change of Control Severance Agreement ("CoC Agreement"), you will be eligible to receive additional benefits in case of termination of employment without cause or resignation for good reason, both within and outside of a change of control period, pursuant to the terms of the CoC Agreement.

We require a fully signed and executed At-Will Employment, Confidential Information, Invention Assignment and Arbitration Agreement (the "Confidentiality Agreement"). This is being provided to you with this offer, and, your signed copy will be provided to you on or after your last day of employment. In the event of any dispute or claim relating to or arising out of our employment relationship, you and the Company agree that (i) any and all disputes between you and the Company shall be fully and finally resolved by binding arbitration, (ii) you are waiving any and all rights to a jury trial but all court remedies will be available in arbitration, (iii) all disputes shall be resolved by a neutral arbitrator who shall issue a written opinion, (iv) the arbitration shall provide for adequate discovery, and (v) the Company shall pay all the arbitration fees, except an amount equal to the filing fees you would have paid had you filed a complaint in a court of law. Please note that we must receive your signed Confidentiality Agreement before your first day of employment.

In addition, by signing this letter, you confirm that you are under no contractual or other obligations that would prohibit you from, or that would conflict or that are inconsistent with your performing your duties with Quotient. Lastly, we fully expect that you will comply with any prior employers' agreements of this nature or any other obligations you may have to a former employer or otherwise.

All employment with Quotient is "at-will," meaning that either you or Quotient may terminate your employment at any time and for any reason or for no reason, with or without cause. Any contrary representations that may have been made to you are superseded by this offer. This is the full and complete agreement between you and Quotient regarding this term. Although your job duties, title, compensation and benefits, as well as Quotient's 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 Quotient's Chief Executive Officer. We request that, in the event of resignation, you give the Company at least two weeks' notice.

During the period that you are employed by Quotient, you agree to not engage in any employment, business or activity that is in any way competitive with the business or proposed business of Quotient. Please disclose to Quotient in writing any other employment, business or activity that you are currently associated with or participate in that competes with Quotient. You may not assist any other person or organization in competing with Quotient or in preparing to engage in competition with the business or proposed business of Quotient.

On your first day of work, please bring documentation demonstrating that you have authorization to work in the United States. A list of required documents will be provided to you prior to your start date. If you have questions about this requirement, which applies to U.S. citizens and non- U.S. citizens alike, you may contact our Human Resources office at ###-###-####.

The Company reserves the right to conduct background investigations and/or reference checks on all of its potential employees. Your job offer is contingent upon a clearance of such a background investigation and/or reference check, if any.

Duplicate Original Letter

At-Will Employment, Confidential Information, Invention Assignment and Arbitration Agreement

Change of Control Severance Agreement