Exhibit 10.17

SEVERANCE AGREEMENT

This Severance Agreement (the “Agreement”) is entered into effective December 8, 2022 (the “Effective Date”), by and between Landos Biopharma, Inc. (the “Company”), and Patrick Truesdell (the “Employee”).

Whereas, the Company considers it important to foster the continuous employment of its key management personnel; and

Whereas, the Company desires to provide the Employee with certain severance benefits in the event the employment of the Employee is terminated after the Effective Date under certain circumstances.

Now Therefore, in consideration of the premises and the mutual covenants herein contained, the Company and the Employee hereby agree as follows:

1.Term of Agreement. This Agreement shall become effective on the date hereof and shall remain in effect until the earlier of (i) the date of termination, in the event the Employee’s employment is terminated by the Company for Cause (as defined in Section 4.2(c) below), by the Employee for any reason, due to death or Disability (as defined in Section 4.2(d) below) or due to discontinuance of business, (ii) the expiration of the Severance Period, or (iii) termination by mutual agreement of the parties.

2.At-Will Employment. Employee shall be employed by the Company on an “at- will” basis, meaning either the Company or Employee may terminate Employee’s employment at any time for any reason. Nothing in this Agreement abrogates the at-will employment relationship nor shall be deemed to give Employee the right to be retained in the employ of the Company, or to interfere with the right of the Company.

3.Confidential Information, Non-Competition and Non-Solicitation. As a condition of continued employment, Employee agrees to execute and abide by the Employee Confidential Information and Inventions Assignment Agreement attached hereto as Exhibit A (the “Confidential Information Agreement”), which is incorporated herein by reference, as may be amended by the parties from time to time, and which contains provisions that are intended by the parties to survive and that do survive termination or expiration of this Agreement, including certain non-solicitation and non-competition covenants.

4.Termination Events and Severance. The provisions in this Section govern the payments and severance benefits, if any, to be provided to Employee upon termination of employment.

4.1Termination by the Company without Cause.

(a)The Company shall have the right to terminate Employee’s employment with the Company pursuant to this Section 4.1 at any time without “Cause” (as defined in Section 4.2(c) below) by giving notice as described in Sections 4.3 and 5.1 of this Agreement. A termination pursuant to Section 4.2 below is not a termination without Cause for purposes of

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receiving the benefits described in this Section 4.1.

(b)If the Company terminates Employee’s employment at any time without Cause, and provided that such termination constitutes a “separation from service” (as defined under Treasury Regulation Section 1.409A-1(h), without regard to any alternative definition thereunder, a “Separation from Service”), then Employee shall be entitled to receive the “Accrued Obligations” (as defined in Section 4.1(d) below). Additionally, if Employee complies with the obligations in Section 4.1(d) below, including but not limited to the Release requirement, Employee shall be eligible to receive the following “Severance Benefits”:

(i)The Company will pay Employee an amount equal to Employee’s then current Base Salary for four (4) months, less all applicable withholdings and deductions, and paid in equal installments beginning on the Company’s first regularly scheduled payroll date following the Release Effective Date (as defined below in Section 4.1(d) below), with the remaining installments occurring on the Company’s regularly scheduled payroll dates thereafter.

(ii)If Employee timely elects continued coverage under the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”), for Employee and Employee’s dependents under the Company’s group health plans following such termination, then the Company shall pay the COBRA premiums necessary to continue Employee’s and his covered dependents’ health insurance coverage in effect for Employee (and Employee’s covered dependents) on the termination date until the earliest of: (i) four (4) months following the termination date; (ii) the date when Employee becomes eligible for substantially equivalent health insurance coverage in connection with new employment or self-employment; or (iii) the date Employee ceases to be eligible for COBRA continuation coverage for any reason, including plan termination (such period from the termination date through the earlier of (i)-(iii), (the “COBRA Payment Period”). Notwithstanding the foregoing, if at any time the Company determines that its payment of COBRA premiums on Employee’s behalf would result in a violation of applicable law (including, but not limited to, the 2010 Patient Protection and Affordable Care Act, as amended by the 2010 Health Care and Education Reconciliation Act), then in lieu of paying COBRA premiums pursuant to this Section, the Company shall pay Employee on the last day of each remaining month of the COBRA Payment Period, a fully taxable cash payment equal to the COBRA premium for such month, subject to applicable tax withholding, for the remainder of the COBRA Payment Period. Nothing in this Agreement shall deprive Employee of his rights under COBRA or ERISA for benefits under plans and policies arising under his employment by the Company.

(iii)If the termination occurs after the completion of the Company’s calendar year, but before any bonuses are paid for such calendar year, Employee will be eligible for a bonus for the completed calendar year pursuant to the terms and process set forth in the offer letter between Employee and the Company dated April 7, 2022 (the “Offer Letter”), dependent upon the actual achievement by Employee and the Company of the applicable individual and corporate performance goals, as determined by the Company in its sole discretion. The Company will pay Employee any bonus awarded for the completed calendar year, less applicable withholdings and deductions, payable on the later of (A) the date that annual performance bonuses are normally paid to other similarly situated employees at the Company for that calendar year or (B) the Release Effective Date.

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(iv)If the termination or resignation occurs on or within twelve

(12) months following the effective date of a Corporate Transaction (as defined in the Company’s 2019 Equity Incentive Plan (the “Plan”), but provided that an event will not constitute a “Corporate Transaction” under this Agreement unless it also qualifies as a “change in control event” under Treasury Regulations Section 1.409A-3(i)(5)), then the vesting of all outstanding unvested time-based equity awards that are held by Employee as of the date of Employee’s date of termination from employment shall be accelerated as to the number of shares that would have vested in accordance with the applicable vesting schedule as if Employee had been in service for an additional six (6) months as of Employee’s termination date (based upon months of service and not the occurrence of corporate events or milestones).

(c)Employee will be paid all of the Accrued Obligations on the Company’s first payroll date after Employee’s date of termination from employment or earlier if required by law. If eligible to receive the Severance Benefits pursuant to Section 4.1(c) of this Agreement, Employee will only receive such Severance Benefits if: (i) within the time period provided in the separation agreement (which shall be no longer than 60 days following the date of Employee’s Separation from Service), Employee has signed and delivered to the Company a separation agreement in the form presented by the Company, that includes, among other terms, an effective general release of claims in favor of the Company and its affiliates and representatives in the form presented by the Company (the “Release”), which cannot be revoked in whole or part by such date (the date that the Release can no longer be revoked is referred to as the “Release Effective Date”); (ii) if Employee holds any other positions with the Company, he resigns such position(s) to be effective no later than the date of Employee’s termination date (or such other date as requested by the Company); (iii) Employee returns all Company property; (iv) Employee complies with his post-termination obligations under this Agreement and the Confidential Information Agreement; and (v) Employee complies with the terms of the Release, including, without limitation, any non-disparagement, confidentiality and cooperation provisions contained in the Release. To the extent that any of the Severance Benefits are deferred compensation under Section 409A (as defined below) of the Code (as defined below), and are not otherwise exempt from the application of Section 409A, then, if the period during which Employee may consider and sign the Release spans two calendar years, the payment of the Severance Benefits will not be made or begin until the later calendar year.

(d)For purposes of this Agreement, “Accrued Obligations” are (i) Employee’s accrued but unpaid salary through the date of termination, (ii) any unreimbursed business expenses incurred by Employee payable in accordance with the Company’s standard expense reimbursement policies, and (iii) benefits owed to Employee under any qualified retirement plan or health and welfare benefit plan in which Employee was a participant in accordance with applicable law and the provisions of such plan.

(e)The Severance Benefits provided to Employee pursuant to this Section 4.1 are in lieu of, and not in addition to, any benefits to which Employee may otherwise be entitled under any Company severance plan, policy or program.

(f)Any damages caused by the termination of Employee’s employment without Cause would be difficult to ascertain; therefore, the Severance Benefits for which Employee is eligible pursuant to Section 4.1(c) above in exchange for the Release is agreed to by the parties as liquidated damages, to serve as full compensation, and not a penalty.

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4.2All Other Terminations.

(a)If, at any time, the Company terminates Employee’s employment for Cause, Employee resigns for any reason, or if either party terminates Employee’s employment as a result of Employee’s death or Disability (as defined below), Employee will not receive the Severance Benefits, or any other severance compensation or benefit, except that, pursuant to the Company’s standard payroll policies, the Company shall provide to Employee (or Employee’s legal representatives, in the event of Employee’s death) the Accrued Obligations.

(b)For the avoidance of doubt, in the event the Company’s business is discontinued because rendered impracticable by substantial financial losses, lack of funding, legal decisions, administrative rulings, declaration of war, dissolution, national or local economic depression or crisis or any reasons beyond the control of the Company, then this Agreement shall terminate as of the day the Company determines to cease operation with the same force and effect as if such day of the month were originally set as the termination date hereof. In the event this Agreement is terminated pursuant to this Section 4.2(b), Employee will not receive the Severance Benefits, or any other severance compensation or benefit, except that, pursuant to the Company’s standard payroll policies, the Company shall provide to Employee the Accrued Obligations.

(c)“Cause” for purposes of this Agreement shall mean that the Company has determined in its sole discretion that Employee has engaged in any of the following: (i) a material breach of any covenant or condition under this Agreement, the Confidential Information Agreement, or any other similar written agreement between the Company and Employee; (ii) any act constituting dishonesty, fraud or immoral conduct; (iii) any conduct which constitutes a felony under applicable law; (iv) material violation of any Company policy or any act of misconduct; (v) refusal to follow or implement a clear and reasonable directive of Company; (vi) negligence or incompetence in the performance of Employee’s duties or failure to perform such duties in a manner satisfactory to the Company after the expiration of ten (10) days without cure after written notice of such failure; or (vii) breach of fiduciary duty.

(d)Termination by the Company of Employee’s employment based on “Disability” shall mean termination because Employee is unable due to a physical or mental condition to perform the essential functions of Employee’s position with or without reasonable accommodation for six (6) months in the aggregate during any twelve (12) month period or based on the written certification by two licensed physicians of the likely continuation of such condition for such period. One of the physicians shall be chosen by the Company and the other shall be chosen by the Employee, or by Employee’s representative. This definition shall be interpreted and applied consistent with the Americans with Disabilities Act, the Family and Medical Leave Act, and other applicable law.

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4.3Notice; Effective Date of Termination.

(a)Termination of Employee’s employment pursuant to this Agreement shall be effective on the earliest of:

(i)immediately after the Company gives notice to Employee of Employee’s termination, with or without Cause, unless pursuant to Section 4.2(c)(vi) in which case ten (10) days after notice if not cured, or unless the Company specifies a later date, in which case, termination shall be effective as of such later date;

(ii)immediately upon Employee’s death;

(iii)immediately after the Company gives written notice to Employee of Employee’s termination on account of Employee’s Disability, unless the Company specifies a later Separation Date, in which case, termination shall be effective as of such later Separation Date, provided that Employee has not returned to the full-time performance of Employee’s duties prior to such date;

(iv)twenty (20) days after Employee gives written notice to the Company of Employee’s resignation for any reason, provided, however, the Company may, in its sole discretion, set a termination date at any time between the date of notice and the date of resignation, in which case Employee’s resignation shall be effective as of such other date. Employee will receive compensation through any required notice period.

(b)In the event notice of a termination under subsections (a)(i) is given orally, at the other party’s request, the party giving notice must provide written confirmation of such notice within five (5) business days of the request in compliance with the requirement of Section 5.1 below. In the event of a termination for Cause, written confirmation shall specify the subsection(s) of the definition of Cause relied on to support the decision to terminate.

4.4Cooperation with the Company After Termination of Employment. As a condition of receiving Severance Benefits pursuant to this Agreement, following termination of Employee’s employment for any reason, Employee shall reasonably cooperate with the Company in all matters relating to the winding up of Employee’s pending work including, but not limited to, any litigation in which the Company is involved, and the orderly transfer of any such pending work to such other Employees as may be designated by the Company. The Company will reimburse Employee for reasonable out-of-pocket expenses Employee incurs in connection with any such cooperation (excluding forgone wages, salary, or other compensation) and will make reasonable efforts to accommodate Employee’s scheduling needs.

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4.5Application of Section 409A.

(a)It is intended that all of the severance benefits and other payments under this Agreement satisfy, to the greatest extent possible, one or more exemptions from the application of Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”) and the regulations and other guidance thereunder and any state law of similar effect (collectively, “Section 409A”) to the maximum extent that such an exemption is available and any ambiguities herein shall be interpreted accordingly; provided, however, that to the extent such exemption is not available, the severance benefits and other payments under this Agreement are intended to comply with the requirements of Section 409A to the extent necessary to avoid adverse personal tax consequences , and this Agreement will be construed in a manner consistent with such intention, incorporating by reference all required definitions and payment terms.

(b)No severance payments will be made under this Agreement unless Employee’s termination of employment constitutes a Separation from Service. It is intended that

(i) each installment of any benefits payable under this Agreement to Employee be regarded as a separate “payment” for purposes of Treasury Regulations Section 1.409A-2(b)(2)(i), (ii) all payments of any such benefits under this Agreement satisfy, to the greatest extent possible, the exemptions from the application of Section 409A provided under Treasury Regulations Sections 1.409A-1(b)(4), 1.409A-1(b)(5) and 1.409A-1(b)(9)(iii), and (iii) any such benefits consisting of COBRA premiums also satisfy, to the greatest extent possible, the exemption from the application of Section 409A provided under Treasury Regulations Section 1.409A-1(b)(9)(v).

(c)To the extent that any severance payments are deferred compensation under Section 409A, and are not otherwise exempt from the application of Section 409A, then, to the extent required to comply with Section 409A, if the period during which Separation Agreement could become effective spans two calendar years, then, regardless of when the Separation Agreement is returned to the Company and becomes effective, the Separation Agreement will not be deemed effective (solely for purposes of the timing of payment of severance benefits under this Agreement) any earlier than the latest permitted effective date, and all severance payments shall accordingly occur in the second calendar year. If the Company determines that the severance benefits provided under this Agreement constitutes “deferred compensation” under Section 409A and if Employee is a “specified employee” of the Company, as such term is defined in Section 409A(a)(2)(B)(i) of the Code at the time of Employee’s Separation from Service, then, solely to the extent necessary to avoid the incurrence of the adverse personal tax consequences under Section 409A, the timing of the severance will be delayed as follows: on the earlier to occur of (a) the date that is six months and one day after Employee’s Separation from Service, and (b) the date of Employee’s death, the Company will:

(i) pay to Employee a lump sum amount equal to the sum of the severance benefits that Employee would otherwise have received if the commencement of the payment of the severance benefits had not been delayed pursuant to this Section 4.5(c); and (ii) commence paying the balance of the severance benefits in accordance with the applicable payment schedule set forth in Section 4.1. No interest shall be due on any amounts deferred pursuant to this Section 4.5(c).

(d)The Company makes no representation that compensation paid pursuant to the terms of this Agreement will be exempt from or comply with Section 409A and makes no undertaking to preclude Section 409A from applying to any such payment.

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4.6Excise Tax Adjustment.

(a)If any payment or benefit Employee will or may receive from the Company or otherwise (a “280G Payment”) would (i) constitute a “parachute payment” within the meaning of Section 280G of the Code, and (ii) but for this Section, be subject to the excise tax imposed by Section 4999 of the Code (the “Excise Tax”), then any such 280G Payment provided pursuant to this Agreement (a “Payment”) shall be equal to the Reduced Amount. The “Reduced Amount” shall be either (x) the largest portion of the Payment that would result in no portion of the Payment (after reduction) being subject to the Excise Tax, or (y) the largest portion, up to and including the total, of the Payment, whichever amount (i.e., the amount determined by clause (x) or by clause (y)), after taking into account all applicable federal, state, foreign and local employment taxes, income taxes, and the Excise Tax (all computed at the highest applicable marginal rate), results in Employee’s receipt, on an after-tax basis, of the greater economic benefit notwithstanding that all or some portion of the Payment may be subject to the Excise Tax. If a reduction in a Payment is required pursuant to the preceding sentence and the Reduced Amount is determined pursuant to clause (x) of the preceding sentence, the reduction shall occur in the manner (the “Reduction Method”) that results in the greatest economic benefit for Employee. If more than one method of reduction will result in the same economic benefit, the items so reduced will be reduced pro rata (the “Pro Rata Reduction Method”).

(b)Notwithstanding any provision of this Section 4.6 to the contrary, if the Reduction Method or the Pro Rata Reduction Method would result in any portion of the Payment being subject to taxes pursuant to Section 409A that would not otherwise be subject to taxes pursuant to Section 409A, then the Reduction Method and/or the Pro Rata Reduction Method, as the case may be, shall be modified so as to avoid the imposition of taxes pursuant to Section 409A as follows: (A) as a first priority, the modification shall preserve to the greatest extent possible, the greatest economic benefit for Employee as determined on an after-tax basis;

(B) as a second priority, Payments that are contingent on future events (e.g., being terminated without Cause), shall be reduced (or eliminated) before Payments that are not contingent on future events; and (C) as a third priority, Payments that are “deferred compensation” within the meaning of Section 409A shall be reduced (or eliminated) before Payments that are not deferred compensation within the meaning of Section 409A.

(c)Unless Employee and the Company agree on an alternative accounting firm or law firm, the accounting firm engaged by the Company for general tax compliance purposes as of the day prior to the effective date of the Change in Control transaction shall perform the foregoing calculations. If the accounting firm so engaged by the Company is serving as accountant or auditor for the individual, entity, or group effecting the Change in Control transaction, the Company shall appoint a nationally recognized accounting or law firm to make the determinations required by this Section 4.6. The Company shall bear all expenses with respect to the determinations by such accounting or law firm required to be made hereunder. The Company shall use commercially reasonable efforts to cause the accounting or law firm engaged to make the determinations hereunder to provide its calculations, together with detailed supporting documentation, to Employee and the Company within fifteen (15) calendar days after the date on which Employee’s right to a 280G Payment becomes reasonably likely to occur (if requested at that time by Employee or the Company) or such other time as requested by Employee or the Company.

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(d)If Employee receives a Payment for which the Reduced Amount was determined pursuant to clause (x) of Section 4.6(a) and the Internal Revenue Service determines thereafter that some portion of the Payment is subject to the Excise Tax, Employee agrees to promptly return to the Company a sufficient amount of the Payment (after reduction pursuant to clause (x) of Section 4.6(a)) so that no portion of the remaining Payment is subject to the Excise Tax. For the avoidance of doubt, if the Reduced Amount was determined pursuant to clause (y) of Section 4.6(a), Employee shall have no obligation to return any portion of the Payment pursuant to the preceding sentence.

4.7Withholding. Any payments to the Employee provided for hereunder shall be provided net of any applicable withholding required under federal, state, or local law and of any additional withholding to which the Employee has agreed.

5.Miscellaneous.

5.1Notices. Any notices required hereunder shall be in writing and shall be deemed effectively given: (a) upon personal delivery to the party to be notified, (b) when sent by electronic mail or confirmed facsimile if sent during normal business hours of the recipient, and if not, then on the next business day, (c) five (5) days after having been sent by registered or certified mail, return receipt requested, postage prepaid, or (d) one (1) day after deposit with a nationally-recognized overnight courier, specifying next-day delivery, with written verification of receipt. All communications shall be sent to the Company at its primary office location and to Employee at Employee’s address as listed on the Company payroll or (if notice is given prior to Employee’s termination of employment) to Employee’s Company-issued email address, or at such other address as the Company or Employee may designate by ten (10) days’ advance written notice to the other.

5.2Severability. Whenever possible, each provision of this Agreement will be interpreted in such manner as to be effective and valid under applicable law, but if any provision of this Agreement is held to be invalid, illegal, or unenforceable in any respect under any applicable law or rule in any jurisdiction, such invalidity, illegality, or unenforceability will not affect any other provision or any other jurisdiction, but this Agreement will be reformed, construed, and enforced in such jurisdiction as if such invalid, illegal, or unenforceable provisions had never been contained herein.

5.3Waiver. If either party should waive any breach of any provisions of this Agreement, Employee or the Company shall not thereby be deemed to have waived any preceding or succeeding breach of the same or any other provision of this Agreement.

5.4Complete Agreement. This Agreement constitutes the entire agreement between Employee and the Company with regard to the subject matter hereof and supersede any prior oral discussions or written communications and agreements on the same subject matter. This Agreement is intended to sit side by side with other agreements between Employee and the Company including, without limitation, the Offer Letter and the Confidential Information Agreement, each interpreted according to its terms. This Agreement is entered into without reliance on any promise or representation other than those expressly contained herein, and it cannot be modified or amended except in writing signed by Employee and an authorized officer of the Company.

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5.5Counterparts. This Agreement may be executed by electronic transmission and in separate counterparts, any one of which need not contain signatures of more than one party, but all of which taken together will constitute one and the same Agreement.

5.6Headings. The headings of the sections hereof are inserted for convenience only and shall not be deemed to constitute a part hereof nor to affect the meaning thereof.

5.7Successors and Assigns. The Company shall assign this Agreement and its rights and obligations hereunder in whole, but not in part, to any company or other entity with or into which the Company may hereafter merge or consolidate or to which the Company may transfer all or substantially all of its assets, if in any such case said company or other entity shall by operation of law or expressly in writing assume all obligations of the Company hereunder as fully as if it had been originally made a party hereto, but may not otherwise assign this Agreement or its rights and obligations hereunder. Employee may not assign or transfer this Agreement or any rights or obligations hereunder, other than to Employee’s estate upon Employee’s death.

5.8No Assignment of Benefits. Except as otherwise provided herein or by law, no right or interest of the Employee under this Agreement shall be assignable or transferable, in whole or in part, either directly or by operation of law or otherwise, including without limitation by execution, levy, garnishment, attachment, pledge, or in any manner; no attempted assignment or transfer thereof shall be effective; and no right or interest of the Employee under this Agreement shall be liable for, or subject to, any obligation or liability of the Employee.

5.9Governing Law. The validity, interpretation, construction and performance of this Agreement shall be governed by the laws of the Commonwealth of Virginia without regard to principles of conflicts of laws thereof.

5.10Headings. The headings and captions herein are provided for reference and convenience only, shall not be considered part of this Agreement, and shall not be employed in the construction of this Agreement.

5.11Resolution of Disputes. The parties recognize that litigation in federal or state courts or before federal or state administrative agencies of disputes arising out of Employee’s employment with the Company or out of this Agreement, or Employee’s termination of employment or termination of this Agreement, may not be in the best interests of either Employee or the Company, and may result in unnecessary costs, delays, complexities, and uncertainty. The parties agree that any dispute between the parties arising out of or relating to the negotiation, execution, performance or termination of this Agreement or Employee’s employment, including, but not limited to, any claim arising out of this Agreement, claims under Title VII of the Civil Rights Act of 1964, as amended, the Civil Rights Act of 1991, the Age Discrimination in Employment Act of 1967, the Americans with Disabilities Act of 1990, Section 1981 of the Civil Rights Act of 1966, as amended, the Family Medical Leave Act, the Employee Retirement Income Security Act, and any similar federal, state or local law, statute, regulation, or any common law doctrine, whether that dispute arises during or after employment, shall be settled by binding arbitration in accordance with the National Rules for the Resolution of Employment Disputes of the American Arbitration Association (the “AAA”); provided however, that this dispute resolution provision shall not apply to any separate agreements between the parties that do not themselves specify arbitration as an exclusive remedy. The location for the arbitration shall be the Blacksburg, Virginia area. Employee acknowledges that by agreeing to this arbitration procedure, both

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Employee and the Company waive the right to resolve any such dispute through a trial by jury or judge or administrative proceeding. In addition, all claims, disputes, or causes of action under this section, whether by Employee or the Company, must be brought in an individual capacity, and shall not be brought as a plaintiff (or claimant) or class member in any purported class or representative proceeding, nor joined or consolidated with the claims of any other person or entity. The arbitrator may not consolidate the claims of more than one person or entity, and may not preside over any form of representative or class proceeding. To the extent that the preceding sentences regarding class claims or proceedings are found to violate applicable law or are otherwise found unenforceable, any claim(s) alleged or brought on behalf of a class shall proceed in a court of law rather than by arbitration. This paragraph shall not apply to any action or claim that cannot be subject to mandatory arbitration as a matter of law, to the extent such claims are not permitted by applicable law(s) to be submitted to mandatory arbitration and the applicable law(s) are not preempted by the Federal Arbitration Act or otherwise invalid (collectively, the “Excluded Claims”). In the event Employee intends to bring multiple claims, including one of the Excluded Claims listed above, the Excluded Claims may be filed with a court, while any other claims will remain subject to mandatory arbitration. Employee will have the right to be represented, at Employee’s own expense, by legal counsel at any arbitration proceeding. Questions of whether a claim is subject to arbitration under this agreement shall be decided by the arbitrator. Likewise, procedural questions which grow out of the dispute and bear on the final disposition are also matters for the arbitrator. 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 statement signed by the arbitrator regarding the disposition of each claim and the relief, if any, awarded as to each claim, the reasons for the award, and the arbitrator’s essential findings and conclusions on which the award is based. The arbitrator shall be authorized to award all relief that Employee or the Company would be entitled to seek in a court of law. Employee and the Company shall equally share all arbitration fees, or such fees shall be paid in such other manner to the extent required by, and in accordance with, applicable law to effectuate Employee’s and the Company’s agreement to arbitrate. Each party is responsible for its own attorneys’ fees, except as expressly set forth in any written agreement between Employee and the Company. To the extent AAA does not collect or Employee otherwise does not pay to AAA an equal share of all AAA’s arbitration fees for any reason, and the Company pays AAA Employee’s share, Employee acknowledges and agree that the Company shall be entitled to recover from Employee half of the AAA arbitration fees invoiced to the parties (less any amounts Employee paid to AAA) in a federal or state court of competent jurisdiction. Nothing in this Agreement is intended to prevent either Employee or the Company from obtaining injunctive relief in court to prevent irreparable harm pending the conclusion of any such arbitration. Any awards or orders in such arbitrations may be entered and enforced as judgments in the federal and state courts of any competent jurisdiction.

[signatures to follow on next page]

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IN WITNESS WHEREOF, the Company has caused this Agreement to be executed by its duly authorized officer, and the Employee has executed this Agreement, each on the day and year written below.

Landos Biopharma, Inc.	Employee
BY:/s/ Gregory Oakes	/s/ Patrick Truesdell
Gregory Oakes	Patrick Truesdell
Chief Executive Officer
Date:December 8, 2022	Date:December 8, 2022

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Exhibit A

EMPLOYEE CONFIDENTIAL INFORMATION AND INVENTIONS ASSIGNMENT AGREEMENT

In consideration of my employment or continued employment by Landos Biopharma, Inc., and its subsidiaries, parents, affiliates, successors and assigns (together, “Company”), the compensation now and later paid to me, and the Company’s agreement to provide me with access to its Confidential Information (defined below), I hereby enter into this Employee Confidential Information and Inventions Assignment Agreement (the “Agreement”) and agree as follows:

1.CONFIDENTIAL INFORMATION PROTECTIONS.

1.1Recognition of Company’s Rights; Nondisclosure. I understand and acknowledge that my employment by Company creates a relationship of confidence and trust with respect to Company’s Confidential Information (as defined below) and that Company has a protectable interest therein. At all times during and after my employment, I will hold in confidence and will not disclose, use, lecture upon or publish any of Company’s Confidential Information, except as such disclosure, use or publication may be required in connection with my work for Company, or unless an officer of Company expressly authorizes such disclosure in writing. I will obtain Company’s written approval before publishing or submitting for publication any material (written, verbal, or otherwise) that discloses and/or incorporates any Confidential Information. I hereby assign to Landos Biopharma, Inc. any rights I may have or acquire in such Confidential Information and recognize that all Confidential Information shall be the sole and exclusive property of Landos Biopharma, Inc. and its assigns. I will take all reasonable precautions to prevent the inadvertent or accidental disclosure of Confidential Information. Notwithstanding the foregoing, pursuant to 18 U.S.C. Section 1833(b), I shall not be held criminally or civilly liable under any Federal or State trade secret law for the disclosure of a trade secret that:

(1) is made in confidence to a Federal, State, or local government official, either directly or indirectly, or to an attorney, and solely for the purpose of reporting or investigating a suspected violation of law; or (2) is made in a complaint or other document filed in a lawsuit or other proceeding, if such filing is made under seal.

1.2Confidential Information. The term “Confidential Information” shall mean any and all confidential knowledge, data or information of Company. By way of illustration but not limitation, “Confidential Information” includes (a) trade secrets, inventions, mask works, ideas, processes, formulas, software in source or object code versions, data, programs, other works of authorship, know-how, improvements, discoveries, developments, designs and techniques and any other proprietary technology and all Intellectual Property Rights therein (collectively, “Inventions”); (b) information regarding research, development, new products, marketing and selling, business plans, budgets and unpublished financial statements, licenses, prices and costs, margins, discounts, credit terms, pricing and billing policies, quoting procedures, methods of obtaining business, forecasts, future plans and potential strategies, financial projections and business strategies, operational plans, financing and capital-raising plans, activities and agreements, internal services and operational manuals, methods of conducting Company business, suppliers and supplier information, and purchasing; (c) information regarding customers and potential customers of Company, including customer lists, names, representatives, their needs or desires with respect to the types of products or services offered by Company, proposals, bids, contracts and their contents and parties, the type and quantity of products and services provided or sought to be provided to customers and potential customers of Company and other non-public information relating to customers and potential customers; (d) information regarding any of Company’s business partners and their services, including names; representatives, proposals, bids, contracts and their contents and parties, the type and quantity of products and services received by Company, and other non-public information relating to business partners; (e) information regarding personnel, employee lists, compensation, and employee skills; and (f) any other non-public information which a competitor of Company could use to the competitive disadvantage of Company. Notwithstanding the foregoing, it is understood that, at all such times, I am free to use information which was known to me prior to employment with Company or which is generally known in the trade or industry through no breach of this Agreement or other act or omission by me. Notwithstanding the foregoing or anything to the contrary in this Agreement or any other agreement between Company and me, nothing in this Agreement shall limit my right to discuss my employment or report possible violations of law or regulation, including discrimination or harassment, with the Equal Employment Opportunity Commission, United States Department of Labor, the National Labor Relations Board, the Securities and Exchange Commission, or other federal government agency or similar state or local agency or to discuss the terms and conditions of my employment with others to the extent expressly permitted by Section 7 of the National Labor Relations Act or to the extent that such disclosure is protected under the applicable provisions of law or regulation, including but not limited to “whistleblower” statutes or other similar provisions that protect such disclosure.

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1.3Third Party Information. I understand, in addition, that Company has received and in the future will receive from third parties their confidential and/or proprietary knowledge, data or information (“Third Party Information”) subject to a duty on Company’s part to maintain the confidentiality of such information and to use it only for certain limited purposes. During my employment and thereafter, I will hold Third Party Information in confidence and will not disclose to anyone (other than Company personnel who need to know such information in connection with their work for Company) or use, except in connection with my work for Company, Third Party Information unless expressly authorized by an officer of Company in writing.

1.4Term of Nondisclosure Restrictions. I understand that Confidential Information and Third Party Information is never to be used or disclosed by me, as provided in this Section 1. If a temporal limitation on my obligation not to use or disclose such information is required under applicable law, and the Agreement or its restriction(s) cannot otherwise be enforced, I agree and Company agrees that the two (2) year period after the date my employment ends will be the temporal limitation relevant to the contested restriction, provided, however, that this sentence will not apply to trade secrets protected without temporal limitation under applicable law.

1.5No Improper Use of Information of Prior Employers and Others. During my employment by Company, I will not improperly use or disclose confidential information or trade secrets, if any, of any former employer or any other person to whom I have an obligation of confidentiality, and I will not bring onto the premises of Company any unpublished documents or any property belonging to any former employer or any other person to whom I have an obligation of confidentiality unless consented to in writing by that former employer or person.

2.ASSIGNMENTS OF INVENTIONS.

2.1Definitions. As used in this Agreement, the term “Intellectual Property Rights” means all trade secrets, Copyrights, trademarks, mask work rights, patents and other intellectual property rights recognized by the laws of any jurisdiction or country; the term “Copyright” means the exclusive legal right to reproduce, perform, display, distribute and make derivative works of a work of authorship (as a literary, musical, or artistic work) recognized by the laws of any jurisdiction or country; and the term “Moral Rights” means all paternity, integrity, disclosure, withdrawal, special and any other similar rights recognized by the laws of any jurisdiction or country.

2.2Excluded Inventions and Other Inventions. Attached hereto as Exhibit A-1 is a list describing all existing Inventions, if any, that may relate to Company’s business or actual or demonstrably anticipated research or development and that were made by me or acquired by me prior to the commencement of my employment with, and which are not to be assigned to, Company (“Excluded Inventions”). If no such list is attached, I represent and agree that it is because I have no rights in any existing Inventions that may relate to Company’s business or actual or demonstrably anticipated research or development. For purposes of this Agreement, “Other Inventions” means Inventions in which I have or may have an interest, as of the commencement of my employment, other than Company Inventions (defined below) and Excluded Inventions. I acknowledge and agree that if I use any Excluded Inventions or any Other Inventions in the scope of my employment, or if I include any Excluded Inventions or Other Inventions in any product or service of Company, or if my rights in any Excluded Inventions or Other Inventions may block or interfere with, or may otherwise be required for, the exercise by Company of any rights assigned to Company under this Agreement, I will immediately so notify Company in writing. Unless Company and I agree otherwise in writing as to particular Excluded Inventions or Other Inventions, I hereby grant to Company, in such circumstances (whether or not I give Company notice as required above), a non-exclusive, perpetual, transferable, fully-paid and royalty-free, irrevocable and worldwide license, with rights to sublicense through multiple levels of sublicensees, to reproduce, make derivative works of, distribute, publicly perform, and publicly display in any form or medium, whether now known or later developed, make, have made, use, sell, import, offer for sale, and exercise any and all present or future rights in, such Excluded Inventions and Other Inventions. To the extent that any third parties have rights in any such Other Inventions, I hereby represent and warrant that such third party or parties have validly and irrevocably granted to me the right to grant the license stated above.

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2.3Assignment of Company Inventions. Inventions assigned to Landos Biopharma, Inc., or to a third party as directed by Landos Biopharma, Inc. pursuant to Section 2.6, are referred to in this Agreement as “Company Inventions.” Subject to Section 2.4 (Unassigned or Nonassignable Inventions) and except for Excluded Inventions set forth in Exhibit A-1 and Other Inventions, I hereby assign to Landos Biopharma, Inc. all my right, title, and interest in and to any and all Inventions (and all Intellectual Property Rights with respect thereto) made, conceived, reduced to practice, or learned by me, either alone or with others, during the period of my employment by Company. To the extent required by applicable Copyright laws, I agree to assign in the future (when any copyrightable Inventions are first fixed in a tangible medium of expression) my Copyright rights in and to such Inventions. Any assignment of Company Inventions (and all Intellectual Property Rights with respect thereto) hereunder includes an assignment of all Moral Rights. To the extent such Moral Rights cannot be assigned to Landos Biopharma, Inc. and to the extent the following is allowed by the laws in any country where Moral Rights exist, I hereby unconditionally and irrevocably waive the enforcement of such Moral Rights, and all claims and causes of action of any kind against Company or related to Company’s customers, with respect to such rights. I further acknowledge and agree that neither my successors-in-interest nor legal heirs retain any Moral Rights in any Company Inventions (and any Intellectual Property Rights with respect thereto).

2.4Unassigned or Nonassignable Inventions. I recognize that this Agreement will not be deemed to require assignment of any Invention that I developed entirely on my own time without using Company’s equipment, supplies, facilities, trade secrets or Confidential Information, except for those Inventions that either (i) relate to Company’s actual or anticipated business, research or development, or (ii) result from or are connected with work performed by me for Company. In addition, this Agreement does not apply to any Invention which qualifies fully for protection from assignment to Company under any specifically applicable state law, regulation, rule or public policy (“Specific Inventions Law”).

2.5Obligation to Keep Company Informed. During the period of my employment and for one (1) year after termination of my employment, I will promptly and fully disclose to Company in writing all Inventions authored, conceived, or reduced to practice by me, either alone or jointly with others. In addition, I will promptly disclose to Company all patent applications filed by me or on my behalf within one (1) year after termination of employment. At the time of each such disclosure, I will advise Company in writing of any Inventions that I believe fully qualify for protection under the provisions of any applicable Specific Inventions Law; and I will at that time provide to Company in writing all evidence necessary to substantiate that belief. Company will keep in confidence and will not use for any purpose or disclose to third parties without my consent any Confidential Information disclosed in writing to Company pursuant to this Agreement relating to Inventions that qualify fully for protection under a Specific Inventions Law. I will preserve the confidentiality of any Invention that does not fully qualify for protection under a Specific Inventions Law.

2.6Government or Third Party. I agree that, as directed by Company, I will assign to a third party, including without limitation the United States, all my right, title, and interest in and to any particular Company Invention.

2.7Ownership of Work Product.

(a)I acknowledge that all original works of authorship which are made by me (solely or jointly with others) within the scope of my employment and which are protectable by Copyright are “works made for hire,” pursuant to United States Copyright Act (17 U.S.C., Section 101).

(b)I agree that Landos Biopharma, Inc. will exclusively own all work product that is made by me (solely or jointly with others) within the scope of my employment, and I hereby irrevocably and unconditionally assign to Landos Biopharma, Inc. all right, title, and interest worldwide in and to such work product. I understand and agree that I have no right to publish on, submit for publishing, or use for any publication any work product protected by this Section, except as necessary to perform services for Company.

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2.8Enforcement of Intellectual Property Rights and Assistance. I will assist Company in every proper way to obtain, and from time to time enforce, United States and foreign Intellectual Property Rights and Moral Rights relating to Company Inventions in any and all countries. To that end I will execute, verify and deliver such documents and perform such other acts (including appearances as a witness) as Company may reasonably request for use in applying for, obtaining, perfecting, evidencing, sustaining and enforcing such Intellectual Property Rights and the assignment thereof. In addition, I will execute, verify and deliver assignments of such Intellectual Property Rights to Landos Biopharma, Inc. or its designee, including the United States or any third party designated by Landos Biopharma, Inc. My obligation to assist Company with respect to Intellectual Property Rights relating to such Company Inventions in any and all countries will continue beyond the termination of my employment, but Company will compensate me at a reasonable rate after my termination for the time actually spent by me at Company’s request on such assistance. In the event Company is unable for any reason, after reasonable effort, to secure my signature on any document needed in connection with the actions specified in this paragraph, I hereby irrevocably designate and appoint Company and its duly authorized officers and agents as my agent and attorney in fact, which appointment is coupled with an interest, to act for and in my behalf to execute, verify and file any such documents and to do all other lawfully permitted acts to further the purposes of the preceding paragraph with the same legal force and effect as if executed by me. I hereby waive and quitclaim to Company any and all claims, of any nature whatsoever, which I now or may hereafter have for infringement of any Intellectual Property Rights assigned under this Agreement to Landos Biopharma, Inc.

2.9Incorporation of Software Code. I agree that I will not incorporate into any Company software or otherwise deliver to Company any software code licensed under the GNU General Public License or Lesser General Public License or any other license that, by its terms, requires or conditions the use or distribution of such code on the disclosure, licensing, or distribution of any source code owned or licensed by Company except in strict compliance with Company’s policies regarding the use of such software.

3.RECORDS. I agree to keep and maintain adequate and current records (in the form of notes, sketches, drawings and in any other form that is required by Company) of all Confidential Information developed by me and all Company Inventions made by me during the period of my employment at Company, which records will be available to and remain the sole property of Company at all times.

4.DUTY OF LOYALTY DURING EMPLOYMENT. I agree that during the period of my employment by Company I will not, without Company’s express written consent, directly or indirectly engage in any employment or business activity which is directly or indirectly competitive with, or would otherwise conflict with, my employment by Company.

5.NO SOLICITATION OF EMPLOYEES, CONSULTANTS, CONTRACTORS, OR CUSTOMERS OR POTENTIAL CUSTOMERS.I agree that during the period of my employment and for the six (6) month period after the date my employment ends for any reason, including but not limited to voluntary termination by me or involuntary termination by Company, I will not, as an officer, director, employee, consultant, owner, partner, or in any other capacity, either directly or through others, except on behalf of Company:

5.1solicit, induce, encourage, or participate in soliciting, inducing or encouraging any person known to me to be an employee, consultant, or independent contractor of Company to terminate his or her relationship with Company, even if I did not initiate the discussion or seek out the contact;

5.2solicit, induce, encourage, or participate in soliciting, inducing, or encouraging any person known to me to be an employee, consultant, or independent contractor of Company to terminate his or her relationship with Company to render services to me or any other person or entity that researches, develops, markets, sells, performs or provides or is preparing to develop, market, sell, perform or provide Conflicting Services (as defined in Section 6 below);

5.3hire, employ, or engage in a business venture with as partners or owners or other joint capacity, or attempt to hire, employ, or engage in a business venture as partners or owners or other joint capacity, with any person then employed by Company or who has left the employment of Company within the preceding three

(3) months to research, develop, market, sell, perform or provide Conflicting Services;

5.4solicit, induce or attempt to induce any Customer or Potential Customer (as defined below), to terminate, diminish, or materially alter in a manner harmful to Company its relationship with Company;

5.5solicit or assist in the solicitation of any Customer or Potential Customer to induce or attempt to induce such Customer or Potential Customer to purchase or contract for any Conflicting Services; or

5.6perform, provide or attempt to perform or provide any Conflicting Services for a Customer or Potential Customer.

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The parties agree that for purposes of this Agreement, a “Customer or Potential Customer” is any person or entity who or which, at any time during the one (1) year period prior to my contact with such person or entity as described in Sections 5.4-5.6 above if such contact occurs during my employment or, if such contact occurs following the termination of my employment, during the one (1) year period prior to the date my employment with Company ends: (i) contracted for, was billed for, or received from Company any product, service or process with which I worked directly or indirectly during my employment by Company or about which I acquired Confidential Information; (ii) was in contact with me or in contact with any other employee, owner, or agent of Company, of which contact I was or should have been aware, concerning the sale or purchase of, or contract for, any product, service or process with which I worked directly or indirectly during my employment with Company or about which I acquired Confidential Information; or (iii) was solicited by Company in an effort in which I was involved or of which I was aware.

6.NON-COMPETE PROVISION. I agree that for the six (6) month period after the date my employment ends for any reason, including but not limited to voluntary termination by me or involuntary termination by Company, I will not, except on behalf of the Company, directly or indirectly, as an officer, director, employee, consultant, owner, partner, or in any other capacity solicit, perform, or provide, or attempt to perform or provide Conflicting Services anywhere in the Restricted Territory (as defined below), nor will I assist another person to solicit, perform or provide or attempt to perform or provide Conflicting Services anywhere in the Restricted Territory.

The parties agree that for purposes of this Agreement, “Conflicting Services” means any product, service, or process or the research and development thereof, of any person or organization other than Company that directly competes with a product, service, or process, including the research and development thereof, of Company with which I worked directly or indirectly during my employment by Company or about which I acquired Confidential Information during my employment by Company.

The parties agree that for purposes of this Agreement, “Restricted Territory” means the one hundred (100) mile radius of any of the following locations: (i) any Company business location at which I have worked on a regular or occasional basis during the preceding year; (ii) my home if I work from home on a regular or occasional basis; (iii) any potential business location of Company under active consideration by Company to which I have traveled in connection with the consideration of that location; (iv) the primary business location of a Customer or Potential Customer; or (v) any business location of a Customer or Potential Customer where representatives of the Customer or Potential Customer with whom I have been in contact in the preceding year are based.

I acknowledge that Section 6 of this Agreement shall not apply to me if: (A) my average weekly earnings, as determined pursuant to Code of Virginia §40.1-28.7:7, are less than the average weekly wage of the Commonwealth as determined by Va. Code Ann. § 65.2-500(B), or (B) I am otherwise not considered to be a “low wage employee” (as defined in Code of Virginia §40.1- 28.7:8.A).

7.REASONABLENESS OF RESTRICTIONS.

7.1I agree that I have read this entire Agreement and understand it. I agree that this Agreement does not prevent me from earning a living or pursuing my career. I agree that the restrictions contained in this Agreement are reasonable, proper, and necessitated by Company’s legitimate business interests. I represent and agree that I am entering into this Agreement freely and with knowledge of its contents with the intent to be bound by the Agreement and the restrictions contained in it.

7.2In the event that a court finds this Agreement, or any of its restrictions, to be ambiguous, unenforceable, or invalid, I and Company agree that the court will read the Agreement as a whole and interpret the restriction(s) at issue to be enforceable and valid to the maximum extent allowed by law.

7.3If the court declines to enforce this Agreement in the manner provided in subsection 7.2, I and Company agree that this Agreement will be automatically modified to provide Company with the maximum protection of its business interests allowed by law and I agree to be bound by this Agreement as modified.

7.4Furthermore, the parties agree that the market for Company’s products is worldwide. If, however, after applying the provisions of subsections 7.2 and 7.3, a court still decides that this Agreement or any of its restrictions is unenforceable for lack of reasonable geographic limitation and the Agreement or restriction(s) cannot otherwise be enforced, the parties hereby agree that the fifty (50) mile radius from any location at which I worked for Company on either a regular or occasional basis during the one (1) year immediately preceding termination of my employment with Company shall be the geographic limitation relevant to the contested restriction.

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8.NO CONFLICTING AGREEMENT OR OBLIGATION. I represent that my performance of all the terms of this Agreement and as an employee of Company does not and will not breach any agreement to keep in confidence information acquired by me in confidence or in trust prior to my employment by Company. I have not entered into, and I agree I will not enter into, any agreement either written or oral in conflict with this Agreement.

9.RETURN OF COMPANY PROPERTY. When I leave the employ of Company, I will deliver to Company any and all drawings, notes, memoranda, specifications, devices, formulas and documents, together with all copies thereof, and any other material containing or disclosing any Company Inventions, Third Party Information or Confidential Information of Company. I agree that I will not copy, delete, or alter any information contained upon my Company computer or Company equipment before I return it to Company. In addition, if I have used any personal computer, server, or e-mail system to receive, store, review, prepare or transmit any Company information, including but not limited to, Confidential Information, I agree to provide Company with a computer-useable copy of all such Confidential Information and then permanently delete and expunge such Confidential Information from those systems; and I agree to provide Company access to my system as reasonably requested to verify that the necessary copying and/or deletion is completed. I further agree that any property situated on Company’s premises and owned by Company, including disks and other storage media, filing cabinets or other work areas, is subject to inspection by Company’s personnel at any time with or without notice. Prior to leaving, I will cooperate with Company in attending an exit interview and completing and signing Company’s termination statement if required to do so by Company.

10.LEGAL AND EQUITABLE REMEDIES.

10.1I agree that it may be impossible to assess the damages caused by my violation of this Agreement or any of its terms. I agree that any threatened or actual violation of this Agreement or any of its terms will constitute immediate and irreparable injury to Company and Company will have the right to enforce this Agreement and any of its provisions by injunction, specific performance or other equitable relief, without bond and without prejudice to any other rights and remedies that Company may have for a breach or threatened breach of this Agreement.

10.2I agree that if Company is successful in whole or in part in any legal or equitable action against me under this Agreement, Company will be entitled to payment of all costs, including reasonable attorneys’ fees, from me.

10.3In the event Company enforces this Agreement through a court order, I agree that the restrictions of Sections 5 and 6 will remain in effect for a period of twelve (12) months from the effective date of the order enforcing the Agreement.

11.NOTICES. Any notices required or permitted under this Agreement will be given to Company at its headquarters location at the time notice is given, labeled “Attention Chief Executive Officer,” and to me at my address as listed on Company payroll, or at such other address as Company or I may designate by written notice to the other. Notice will be effective upon receipt or refusal of delivery. If delivered by certified or registered mail, notice will be considered to have been given five (5) business days after it was mailed, as evidenced by the postmark. If delivered by courier or express mail service, notice will be considered to have been given on the delivery date reflected by the courier or express mail service receipt.

12.PUBLICATION OF THIS AGREEMENT TO SUBSEQUENT EMPLOYER OR BUSINESS ASSOCIATES OF EMPLOYEE.

12.1If I am offered employment or the opportunity to enter into any business venture as owner, partner, consultant or other capacity while the restrictions described in Sections 5 and 6 of this Agreement are in effect I agree to inform my potential employer, partner, co-owner and/or others involved in managing the business with which I have an opportunity to be associated of my obligations under this Agreement and also agree to provide such person or persons with a copy of this Agreement.

12.2I agree to inform Company of all employment and business ventures which I enter into while the restrictions described in Sections 5 and 6 of this Agreement are in effect and I also authorize Company to provide copies of this Agreement to my employer, partner, co-owner and/or others involved in managing the business with which I am employed or associated and to make such persons aware of my obligations under this Agreement.

13.GENERAL PROVISIONS.

13.1Governing Law; Consent to Personal Jurisdiction. This Agreement will be governed by and construed according to the laws of the Commonwealth of Virginia as such laws are applied to agreements entered into and to be performed entirely within Virginia between Virginia residents. I hereby expressly consent to the personal jurisdiction and venue of the state and federal courts for the county in which Company’s principal place of business is located for any lawsuit filed there

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against me by Company arising from or related to this Agreement.

13.2Severability. In case any one or more of the provisions, subsections, or sentences contained in this Agreement will, for any reason, be held to be invalid, illegal or unenforceable in any respect, such invalidity, illegality or unenforceability will not affect the other provisions of this Agreement, and this Agreement will be construed as if such invalid, illegal or unenforceable provision had never been contained in this Agreement. If moreover, any one or more of the provisions contained in this Agreement will for any reason be held to be excessively broad as to duration, geographical scope, activity or subject, it will be construed by limiting and reducing it, so as to be enforceable to the extent compatible with the applicable law as it will then appear.

13.3Successors and Assigns. This Agreement is for my benefit and the benefit of Company, its successors, assigns, parent corporations, subsidiaries, affiliates, and purchasers, and will be binding upon my heirs, executors, administrators and other legal representatives.

13.4Survival. The provisions of this Agreement will survive the termination of my employment, regardless of the reason, and the assignment of this Agreement by Company to any successor in interest or other assignee.

13.5Employment At-Will. I agree and understand that nothing in this Agreement will change my at-will employment status or confer any right with respect to continuation of employment by Company, nor will it interfere in any way with my right or Company’s right to terminate my employment at any time, with or without cause or advance notice.

13.6Waiver. No waiver by Company of any breach of this Agreement will be a waiver of any preceding or succeeding breach. No waiver by Company of any right under this Agreement will be construed as a waiver of any other right. Company will not be required to give notice to enforce strict adherence to all terms of this Agreement.

13.7Export. I agree not to export, reexport, or transfer, directly or indirectly, any U.S. technical data acquired from Company or any products utilizing such data, in violation of the United States export laws or regulations.

13.8Advice of Counsel. I ACKNOWLEDGE THAT, IN EXECUTING THIS AGREEMENT, I HAVE HAD THE OPPORTUNITY TO SEEK THE ADVICE OF INDEPENDENT LEGAL COUNSEL, AND I HAVE READ AND UNDERSTOOD ALL OF THE TERMS AND PROVISIONS OF THIS AGREEMENT. THIS AGREEMENT WILL NOT BE CONSTRUED AGAINST ANY PARTY BY REASON OF THE DRAFTING OR PREPARATION OF THIS AGREEMENT.

13.9Entire Agreement. The obligations pursuant to Sections 1 and 2 (except Subsections 2.4 and 2.7(a)) of this Agreement will apply to any time during which I was previously engaged, or am in the future engaged, by Company as a consultant if no other agreement governs nondisclosure and assignment of Inventions during such period. This Agreement is the final, complete and exclusive agreement of the parties with respect to the subject matter of this Agreement and supersedes and merges all prior discussions between us; provided, however, prior to the execution of this Agreement, if Company and I were parties to any agreement regarding the subject matter hereof, including but not limited to that certain Employee Invention Assignment Agreement between me and the Company dated April 15, 2022, that agreement will be superseded by this Agreement prospectively only. No modification of or amendment to this Agreement, nor any waiver of any rights under this Agreement, will be effective unless in writing and signed by the party to be charged. Any subsequent change or changes in my duties, salary or compensation will not affect the validity or scope of this Agreement.

[Remainder of Page Intentionally Left Blank]

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This Agreement will be effective as of December 8, 2022.

I have read this agreement carefully and understand its terms. I have completely filled out Exhibit A-1 to this Agreement.

/s/ Patrick Truesdell

(Signature)

Patrick Truesdell

(Printed Name)

December 8, 2022

(Date)

ACCEPTED AND AGREED TO:

Landos Biopharma, Inc.

By: /s/ Gregory Oakes

Name: Gregory Oakes

Title: President & CEO

[Signature Page to Confidential Information and Inventions Assignment Agreement]

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EXHIBIT A-1

LIST OF EXCLUDED INVENTIONS

1.Except as listed in Section 2 below, the following is a complete list of all inventions or improvements relevant to the subject matter of my employment by Company that have been made or conceived or first reduced to practice by me alone or jointly with others prior to my engagement by Company:

☐No inventions or improvements.

☐See below:

Title	Date	Identifying Number or Brief Description
1.
2.
3.

☐Additional sheets attached

2.Due to a prior confidentiality agreement, I cannot complete the disclosure under Section 1 above with respect to inventions or improvements generally listed below, the intellectual property rights and duty of confidentiality with respect to which I owe to the following party(ies):

Invention or Improvement	Party(ies)	Relationship
1.
2.
3.
☐Additional sheets attached

277769545

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