EX-10.24






 Exhibit 10.24 

BOLT BIOTHERAPEUTICS, INC. 

SEVERANCE AND CHANGE IN CONTROL PLAN 

APPROVED BY THE BOARD OF DIRECTORS:
                    , 2021 

Section 1.    INTRODUCTION. 

The Bolt Biotherapeutics, Inc. Severance and Change in Control Plan (the “Plan”) is hereby established effective
upon the IPO Date (as defined below). The purpose of the Plan is to provide for the payment of severance and/or Change in Control (as defined below) benefits to eligible key employees of Bolt Biotherapeutics, Inc. (the
“Company”) in the event that such individuals become subject to certain involuntary or constructive employment terminations. Except as otherwise provided in an individual Participation Agreement, this Plan shall
supersede any severance or change in control benefit plan, policy or practice previously maintained by the Company, and any such benefits set forth in any individually negotiated employment letter or agreement between the Company and an individual
employee or other service provider. This Plan document also is the Summary Plan Description for the Plan. 
 For purposes of the Plan, the
following terms are defined as follows: 
 (a)    “Affiliate” means any corporation (other
than the Company) in an “unbroken chain of corporations” beginning with the Company, if each of the corporations other than the last corporation in the unbroken chain owns stock possessing fifty percent (50%) or more of the total combined
voting power of all classes of stock in one of the other corporations in such chain. 
 (b)    “Base
Salary” means base pay (excluding incentive pay, premium pay, commissions, overtime, bonuses and other forms of variable compensation) as in effect prior to any reduction that would give rise to an employee’s right to resign for
Good Reason (if applicable). 
 (c)    “Board” means the Board of Directors of the
Company; provided, however, that if the Board has delegated authority to administer the Plan to the Compensation Committee of the Board, then “Board” shall also mean the Compensation Committee of the Board. 

(d)    “Cause” means, with respect to a particular employee, the meaning ascribed to such
term in any written agreement between such employee and the Company defining such term, and, in the absence of such agreement, means with respect to such employee, the term “Cause,” as defined in the Equity Plan. The determination whether
a termination is for Cause shall be made by the Plan Administrator in its sole and exclusive judgment and discretion. 

(e)    “Change in Control” has the meaning ascribed to such term in the Equity Plan. 

(f)    “Change in Control Period” means the period commencing three (3) months prior
to the effective date of a Change in Control and ending twelve (12) months following the effective date of such Change in Control. 

(g)    “Change in Control Termination” means an Involuntary Termination that occurs within
the Change in Control Period. For such purposes, if the events giving rise to an employee’s right to resign for Good Reason arise within the Change in Control Period, and the employee’s resignation occurs not later than thirty
(30) days after the expiration of the Cure Period (as defined below), such termination shall be a Change in Control Termination. 

  
 1. 














 (h)    “COBRA” means the Consolidated
Omnibus Budget Reconciliation Act of 1985. 
 (i)    “Code” means the Internal Revenue
Code of 1986, as amended, including any applicable regulations and guidance thereunder. 

(j)    “Company” means Bolt Biotherapeutics, Inc. or, following a Change in Control, the
surviving entity resulting from such event. 
 (k)    “Covered Termination” means a
Regular Termination or a Change in Control Termination. 
 (l)    “Director” means
a member of the Board. 
 (m)    “Disability” means any physical or mental condition
which renders an employee incapable of performing the work for which he or she was employed by the Company or similar work offered by the Company. The Disability of an employee shall be established if (i) the employee satisfies the
requirements for benefits under the Company’s long-term disability plan or (ii) if no long-term disability plan, the employee satisfies the requirements for Social Security disability benefits. 

(n)    “Eligible Employee” means an employee of the Company that meets the requirements to
be eligible to receive Plan benefits as set forth in Section 2 and is designated in writing as eligible to participate in the Plan by the Plan Administrator. 

(o)    “Entity” means a corporation, partnership, limited liability company
or other entity. 
 (p)    “Equity Plan” means the Bolt Biotherapeutics, Inc. 2021 Equity
Incentive Plan, as amended from time to time, or any successor plan thereto. 
 (q)    “Good
Reason” for an employee’s resignation has the meaning ascribed to such term in any written agreement between such employee and the Company defining such term, and, in the absence of such agreement, means with respect to such
employee the occurrence of any of the following events, conditions or actions taken by the Company without Cause and without such employee’s consent: (i) a material reduction of such employee’s annual base salary, which is a reduction
of at least 10% of such employee’s base salary (unless pursuant to a salary reduction program applicable generally to the Company’s similarly situated employees); (ii) a material reduction in such employee’s authority, duties or
responsibilities, provided, however, that a change in job position or level (including a change in title) shall not be deemed a “material reduction” in and of itself unless such employee’s new duties and responsibilities are
substantially reduced from the prior duties and responsibilities; (iii) a material breach by the Company of any provision of this Plan or any other material agreement between such employee and the Company concerning the terms and conditions of
such employee’s employment with the Company; or (iv) a relocation of such employee’s principal place of employment with the Company (or successor to the Company, if applicable) to a place that increases such employee’s one-way commute by more than fifty (50) miles as compared to such employee’s then-current principal place of employment immediately prior to such relocation (excluding regular travel in the ordinary course
of business); provided that, if such employee’s principal place of employment is his or her personal residence, this clause (iv) shall not apply; provided, however, that in each case above, in order for the employee’s
resignation to be deemed to have been for Good Reason, the employee must first give the Company written notice of the action or omission giving rise to “Good Reason” within thirty (30) days after the first occurrence thereof; the
Company must fail to reasonably cure such action or omission within thirty (30) days after receipt of such notice (the “Cure Period”), and the employee’s resignation must be effective not later than thirty (30) days
after the expiration of such Cure Period. 

  
 2. 














 (r)    “Involuntary Termination” means a
termination of employment that is due to: (1) a termination by the Company without Cause (and other than as a result of the employee’s death or Disability) or (2) an employee’s resignation for Good Reason, provided that in any
case such termination is also a Separation from Service. 
 (s)    “IPO Date” means the
date of the underwriting agreement between the Company and the underwriter(s) managing the initial public offering of the common stock, of the Company pursuant to which the common stock of the Company is priced for the initial public offering. 

(t)    “Own,” “Owned,” “Owner,”
“Ownership” means a person or Entity will be deemed to “Own,” to have “Owned,” to be the “Owner” of, or to have acquired “Ownership” of securities if such person or Entity, directly or
indirectly, through any contract, arrangement, understanding, relationship or otherwise, has or shares voting power, which includes the power to vote or to direct the voting, with respect to such securities. 

(u)    “Participation Agreement” means an agreement between an employee and the Company in
substantially the form of Appendix A attached hereto, and which may include such other terms as the Board deems necessary or advisable in the administration of the Plan. 

(v)    “Plan Administrator” means the Board prior to the effective date of a Change in
Control and the Representative upon and following such date. 

(w)    “Representative” means one or more members of the Board or other
persons or entities designated by the Board prior to or in connection with a Change in Control that will have authority to administer and interpret the Plan upon and following the effective date of such Change in Control as provided in
Section 10(a). 
 (x)    “Regular Termination” means an Involuntary Termination that
is not a Change in Control Termination. 

(y)    “Section 409A” means Section 409A of the Code
and the treasury regulations and other guidance thereunder and any state law of similar effect. 

(z)    “Separation from Service” means a “separation from service” within the
meaning of Treasury Regulations Section 1.409A-1(h), without regard to any alternative definition thereunder. 

Section 2.    ELIGIBILITY FOR BENEFITS. 

(a)    Eligible Employee. An employee of the Company is eligible to participate in the Plan if (i) the
Board has designated such employee as eligible to participate in the Plan by providing such person with a Participation Agreement; (ii) such employee has signed and returned such Participation Agreement to the Company within the period
specified therein; (iii) such employee’s employment with the Company terminates due to a Covered Termination; and (iv) such employee meets the other Plan eligibility requirements set forth in this Section 2. The determination of
whether an employee is an Eligible Employee shall be made by the Plan Administrator, in its sole discretion, and such determination shall be binding and conclusive on all persons. 

  
 3. 














 (b)    Release Requirement. Except as otherwise provided
in an individual Participation Agreement, in order to be eligible to receive benefits under the Plan, the employee also must execute a general waiver and release, in such a form as provided by the Company (the “Release”),
within the applicable time period set forth therein, and such Release must become effective in accordance with its terms, which must occur in no event more than sixty (60) days following the date of the applicable Covered Termination. 

(c)    Exceptions to Benefit Entitlement. An employee who otherwise is an Eligible Employee will not receive
benefits under the Plan in the following circumstances, as determined by the Plan Administrator in its sole discretion: 

(1)    The employee is terminated by the Company for any reason or voluntarily terminates employment with the
Company in any manner (including due to the employee’s death or Disability), and in either case, such termination does not constitute a Covered Termination. Voluntary terminations include, but are not limited to, resignation, retirement or
failure to return from a leave of absence on the scheduled date. 
 (2)    The employee voluntarily terminates
employment with the Company in order to accept employment with another entity that is wholly or partly owned (directly or indirectly) by the Company or an Affiliate. 

(3)    The employee is offered an identical or substantially equivalent or comparable position with the Company or
an Affiliate. For purposes of the foregoing, a “substantially equivalent or comparable position” is one that provides the employee substantially the same level of responsibility and compensation and would not give rise to the
employee’s right to resign for Good Reason. 
 (4)    The employee is offered immediate reemployment by a
successor to the Company or an Affiliate or by a purchaser of the Company’s assets, as the case may be, following a Change in Control and the terms of such reemployment would not give rise to the employee’s right to resign for Good Reason.
For purposes of the foregoing, “immediate reemployment” means that the employee’s employment with the successor to the Company or an Affiliate or the purchaser of its assets, as the case may be, results in uninterrupted
employment such that the employee does not incur a lapse in pay or benefits as a result of the change in ownership of the Company or the sale of its assets. For the avoidance of doubt, an employee who becomes immediately reemployed as described in
this Section 2(c)(4) by a successor to the Company or an Affiliate or by a purchaser of the Company’s assets, as the case may be, following a Change in Control shall continue to be an Eligible Employee following the date of such
reemployment. 
 (d)    Termination of Severance Benefits. An Eligible Employee’s right to receive
severance benefits under this Plan shall terminate immediately if, at any time prior to or during the period for which the Eligible Employee is receiving severance benefits under the Plan, the Eligible Employee, without the prior written approval of
the Plan Administrator, engages in a Prohibited Action (as defined below). In addition, if benefits under the Plan have already been paid to the Eligible Employee and the Eligible Employee subsequently engages in a Prohibited Action during the
Prohibited Period (or it is determined that an Eligible Employee engaged in a Prohibited Action prior to receipt of such benefits), any benefits previously paid to the Eligible Employee shall be subject to recoupment by the Company on such terms and
conditions as shall be determined by the Plan Administrator, in its sole discretion. The “Prohibited Period” shall commence on the date of the Eligible Employee’s Covered Termination and continue for the number of months
corresponding to the Severance Period set forth in such Eligible Employee’s Participation Agreement. A “Prohibited Action” shall occur if the Eligible Employee: (i) 

  
 4. 














 
breaches any material statutory, common law, or contractual obligation to the Company or an Affiliate (including, without limitation, the contractual obligations set forth in the Company’s
standard employee confidentiality agreement, the Release and/or any other obligations of confidentiality, non-solicitation, non-disparagement, no conflicts or non-competition set forth in the Eligible Employee’s employment agreement, offer letter, any other written agreement between the Eligible Employee and the Company, or under applicable law); (ii) encourages or
solicits any of the Company’s then current employees to leave the Company’s employ for any reason or interferes in any other manner with employment relationships at the time existing between the Company and its then current employees; or
(iii) induces any of the Company’s then current clients, customers, suppliers, vendors, distributors, licensors, licensees, or other third parties to terminate their existing business relationship with the Company or interferes in any
other manner with any existing business relationship between the Company and any then current client, customer, supplier, vendor, distributor, licensor, licensee, or other third parties. 

Section 3.    AMOUNT OF BENEFIT. 

(a)    Severance Benefit. Benefits under the Plan shall be provided to an Eligible Employee as set forth in
the Participation Agreement. 
 (b)    Additional Benefits. Notwithstanding the foregoing, the Company
may, in its sole discretion, provide benefits to employees or consultants who are not Eligible Employees (“Non-Eligible Employees”) chosen by the Board, in its sole discretion, and the
provision of any such benefits to a Non-Eligible Employee shall in no way obligate the Company to provide such benefits to any other Non-Eligible Employee, even if
similarly situated. If benefits under the Plan are provided to a Non-Eligible Employee, references in the Plan to “Eligible Employee” (and similar references) shall be deemed to refer to such Non-Eligible Employee. 
 (c)    Certain Reductions. The Company, in its
sole discretion, shall have the authority to reduce an Eligible Employee’s severance benefits, in whole or in part, by any other severance benefits, pay and benefits provided during a period following written notice of a plant closing or mass
layoff, pay and benefits in lieu of such notice, or other similar benefits payable to the Eligible Employee by the Company or an Affiliate that become payable in connection with the Eligible Employee’s termination of employment pursuant to
(i) any applicable legal requirement, including, without limitation, the Worker Adjustment and Retraining Notification Act or any other similar state law, (ii) any individually negotiated employment contract or agreement or any other
written employment or severance agreement with the Company, or (iii) any Company policy or practice providing for the Eligible Employee to remain on the payroll for a limited period of time after being given notice of the termination of the
Eligible Employee’s employment, and the Plan Administrator shall so construe and implement the terms of the Plan. Any such reductions that the Company determines to make pursuant to this Section 3(c) shall be made such that any benefit
under the Plan shall be reduced solely by any similar type of benefit under such legal requirement, agreement, policy or practice (i.e., any cash severance benefits under the Plan shall be reduced solely by any cash payments or severance
benefits under such legal requirement, agreement, policy or practice, and any continued insurance benefits under the Plan shall be reduced solely by any continued insurance benefits under such legal requirement, agreement, policy or practice). The
Company’s decision to apply such reductions to the severance benefits of one Eligible Employee and the amount of such reductions shall in no way obligate the Company to apply the same reductions in the same amounts to the severance benefits of
any other Eligible Employee, even if similarly situated. In the Company’s sole discretion, such reductions may be applied on a retroactive basis, with severance benefits previously paid being
re-characterized as payments pursuant to the Company’s statutory obligation. 

  
 5. 














 (d)    Parachute Payments. Except as otherwise provided in
an individual Participation Agreement, if any payment or benefit an Eligible Employee will or may receive from the Company or otherwise (a “Payment”) would (i) constitute a “parachute payment” within the
meaning of Section 280G of the Code, and (ii) but for this sentence, be subject to the excise tax imposed by Section 4999 of the Code (the “Excise Tax”), then any such 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 and local employment taxes, income taxes, and the Excise Tax (all
computed at the highest applicable marginal rate), results in the Eligible 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 the Eligible 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”). 
 Notwithstanding any provisions in this Section above 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 the Eligible 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. 
 The Company shall
appoint a nationally recognized accounting or law firm to make the determinations required by this Section 3. The Company shall bear all expenses with respect to the determinations by such accounting or law firm required to be made hereunder.
If the Eligible Employee receives a Payment for which the Reduced Amount was determined pursuant to clause (x) above and the Internal Revenue Service determines thereafter that some portion of the Payment is subject to the Excise Tax, Eligible
Employee agrees to promptly return to the Company a sufficient amount of the Payment (after reduction pursuant to clause (x) above) 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) above, the Eligible Employee shall have no obligation to return any portion of the Payment pursuant to the preceding sentence. 

Section 4.    RETURN OF COMPANY PROPERTY. 

An Eligible Employee will not be entitled to any severance benefit under the Plan unless and until the Eligible Employee returns all Company
Property. For this purpose, “Company Property” means all Company documents (and all copies thereof) and other Company property which the Eligible Employee had in his or her possession at any time, including, but not limited
to, Company files, notes, drawings, records, plans, forecasts, reports, studies, analyses, proposals, agreements, financial information, research and development information, sales and marketing information, operational and personnel information,
specifications, code, software, databases, computer-recorded information, tangible property and equipment (including, but not limited to, computers, facsimile machines, mobile telephones, servers), credit cards, entry cards, identification badges
and keys; and any materials of any kind which 

  
 6. 














 
contain or embody any proprietary or confidential information of the Company (and all reproductions thereof in whole or in part). As a condition to receiving benefits under the Plan, an Eligible
Employee must not make or retain copies, reproductions or summaries of any such Company documents, materials or property. However, an Eligible Employee is not required to return his or her personal copies of documents evidencing the Eligible
Employee’s hire, termination, compensation, benefits and stock options and any other documentation received as a stockholder of the Company. 

Section 5.    TIME OF PAYMENT AND FORM
OF BENEFIT. 
 The Company reserves the right in the Participation Agreement to specify whether severance
payments under the Plan will be paid in a single sum, in installments, or in any other form and to determine the timing of such payments. All such payments under the Plan will be subject to applicable withholding for federal, state and local taxes.
If an Eligible Employee is indebted to the Company on his or her termination date, the Company reserves the right to offset any severance payments under the Plan by the amount of such indebtedness. All severance benefits provided under the Plan are
intended to satisfy the requirements for an exemption from application of Section 409A to the maximum extent that an exemption is available and any ambiguities herein shall be interpreted accordingly; provided, however, that to the extent such
an exemption is not available, the severance benefits provided under the Plan are intended to comply with the requirements of Section 409A to the extent necessary to avoid adverse personal tax consequences and any ambiguities herein shall be
interpreted accordingly. 
 Notwithstanding anything to the contrary set forth herein, any payments and benefits provided under the Plan
that constitute “deferred compensation” within the meaning of Section 409A shall not commence in connection with an Eligible Employee’s termination of employment unless and until the Eligible Employee has also incurred a
“Separation from Service,”, unless the Company reasonably determines that such amounts may be provided to the Eligible Employee without causing the Eligible Employee to incur the adverse personal tax consequences under Section 409A.

 It is intended that (i) each installment of any benefits payable under the Plan to an Eligible 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 the Plan satisfy, to the greatest extent possible, the exemptions from the
application of Section 409A provided under Treasury Regulations Sections 1.409A-1(b)(4) 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). However, if the Company
determines that any such benefits payable under the Plan constitute “deferred compensation” under Section 409A and the Eligible Employee is a “specified employee” of the Company, as such term is defined in
Section 409A(a)(2)(B)(i), then, solely to the extent necessary to avoid the imposition of the adverse personal tax consequences under Section 409A, (A) the timing of such benefit payments shall be delayed until the earlier of
(1) the date that is six (6) months and one (1) day after the Eligible Employee’s Separation from Service and (2) the date of the Eligible Employee’s death (such applicable date, the “Delayed Initial Payment
Date”), and (B) the Company shall (1) pay the Eligible Employee a lump sum amount equal to the sum of the benefit payments that the Eligible Employee would otherwise have received through the Delayed Initial Payment Date if
the commencement of the payment of the benefits had not been delayed pursuant to this paragraph and (2) commence paying the balance, if any, of the benefits in accordance with the applicable payment schedule. 

In no event shall payment of any benefits under the Plan be made prior to an Eligible Employee’s termination date or prior to the
effective date of the Release. If the Company determines that any payments or benefits provided under the Plan constitute “deferred compensation” under Section 409A, and the Eligible Employee’s Separation from Service occurs at a
time during the calendar year 

  
 7. 














 
when the Release could become effective in the calendar year following the calendar year in which the Eligible Employee’s Separation from Service occurs, then regardless of when the Release
is returned to the Company and becomes effective, the Release will not be deemed effective any earlier than the latest permitted effective date (the “Release Deadline”). If the Company determines that any payments or benefits
provided under the Plan constitute “deferred compensation” under Section 409A, then except to the extent that payments may be delayed until the Delayed Initial Payment Date pursuant to the preceding paragraph, on the first regular
payroll date following the effective date of an Eligible Employee’s Release, the Company shall (1) pay the Eligible Employee a lump sum amount equal to the sum of the benefit payments that the Eligible Employee would otherwise have
received through such payroll date but for the delay in payment related to the effectiveness of the Release and (2) commence paying the balance, if any, of the benefits in accordance with the applicable payment schedule. 

All severance payments under the Plan shall be subject to applicable withholding for federal, state and local taxes. If an Eligible Employee
is indebted to the Company at his or her termination date, the Company reserves the right to offset any severance payments under the Plan by the amount of such indebtedness.     

Section 6.    TRANSFER AND ASSIGNMENT. 

The rights and obligations of an Eligible Employee under this Plan may not be transferred or assigned without the prior written consent of the
Company. This Plan shall be binding upon any entity or person who is a successor by merger, acquisition, consolidation or otherwise to the business formerly carried on by the Company without regard to whether or not such entity or person actively
assumes the obligations hereunder and without regard to whether or not a Change in Control occurs. 

Section 7.    MITIGATION. 

Except as otherwise specifically provided in the Plan, an Eligible Employee will not be required to mitigate damages or the amount of any
payment provided under the Plan by seeking other employment or otherwise, nor will the amount of any payment provided for under the Plan be reduced by any compensation earned by an Eligible Employee as a result of employment by another employer or
any retirement benefits received by such Eligible Employee after the date of the Eligible Employee’s termination of employment with the Company. 

Section 8.    CLAWBACK; RECOVERY. 

All payments and severance benefits provided under the Plan will be subject to recoupment in accordance with any clawback policy that the
Company is required to adopt pursuant to the listing standards of any national securities exchange or association on which the Company’s securities are listed or as is otherwise required by the Dodd-Frank Wall Street Reform and Consumer
Protection Act or other applicable law. In addition, the Plan Administrator may impose such other clawback, recovery or recoupment provisions as the Plan Administrator determines necessary or appropriate, including but not limited to a reacquisition
right in respect of previously acquired shares of common stock of the Company or other cash or property upon the occurrence of a termination of employment for Cause. No recovery of compensation under such a clawback policy will be an event giving
rise to a right to resign for Good Reason, constructive termination, or any similar term under any plan of or agreement with the Company. 

Section 9.    REEMPLOYMENT. 

In the event of an Eligible Employee’s reemployment by the Company during the period of time in respect of which severance benefits
pursuant to the Plan have been paid, the Company, in its sole and absolute discretion, may require such Eligible Employee to repay to the Company all or a portion of such severance benefits as a condition of reemployment. 

  
 8. 














 Section 10.    RIGHT TO INTERPRET
AND ADMINISTER PLAN; AMENDMENT OR TERMINATION. 

(a)    Interpretation and Administration. Prior to the effective date of a Change in Control, the Board shall
be the Plan Administrator and shall have the exclusive discretion and authority to establish rules, forms, and procedures for the administration of the Plan and to construe and interpret the Plan and to decide any and all questions of fact,
interpretation, definition, computation or administration arising in connection with the operation of the Plan, including, but not limited to, the eligibility to participate in the Plan and amount of benefits paid under the Plan. The rules,
interpretations, computations and other actions of the Board shall be binding and conclusive on all persons. Upon and after the effective date of Change in Control, the Plan will be interpreted and administered in good faith by the Representative
who shall be the Plan Administrator during such period. All actions taken by the Representative in interpreting the terms of the Plan and administering the Plan upon and after the effective date of a Change in Control will be final and binding on
all Eligible Employees. Any references in this Plan to the “Board” or “Plan Administrator” with respect to periods following the effective date of a Change in Control shall mean the Representative. 

(b)    Amendment or Termination. The Plan Administrator reserves the right to amend or terminate this Plan
at any time, without advance notice to any Eligible Employee and without regard to the effect of the amendment or termination on any Eligible Employee or on any other individual, except as otherwise provided herein or in an individual Participation
Agreement. Any amendment or termination of the Plan will be in writing. Notwithstanding the foregoing, an Eligible Employee’s rights to receive payments and benefits pursuant to the Plan under an effective Participation Agreement may not be
adversely affected, without the Eligible Employee’s written consent, by an amendment or termination of the Plan. 

Section 11.    NO IMPLIED EMPLOYMENT CONTRACT. 

The Plan shall not be deemed (i) to give any employee or other person any right to be retained in the employ of the Company or
(ii) to interfere with the right of the Company to discharge any employee or other person at any time, with or without cause, which right is hereby reserved. 

Section 12.    LEGAL CONSTRUCTION. 

This Plan is intended to be governed by and shall be construed in accordance with the Employee Retirement Income Security Act of 1974
(“ERISA”) and, to the extent not preempted by ERISA, the laws of the State of California. 

Section 13.    CLAIMS, INQUIRIES AND APPEALS. 

(a)    Applications for Benefits and Inquiries. Any application for benefits, inquiries about the Plan or
inquiries about present or future rights under the Plan must be submitted to the Plan Administrator in writing by an applicant (or his or her authorized representative). The Plan Administrator is: 

Bolt Biotherapeutics, Inc. 
 Board
of Directors 
 900 Chesapeake Drive 

Redwood City, CA 94063 

  
 9. 














 (b)    Denial of Claims. In the event that any application
for benefits is denied in whole or in part, the Plan Administrator must provide the applicant with written or electronic notice of the denial of the application, and of the applicant’s right to review the denial. Any electronic notice will
comply with the regulations of the U.S. Department of Labor. The notice of denial will be set forth in a manner designed to be understood by the applicant and will include the following: 

(1)    the specific reason or reasons for the denial; 

(2)    references to the specific Plan provisions upon which the denial is based; 

(3)    a description of any additional information or material that the Plan Administrator needs to complete the
review and an explanation of why such information or material is necessary; and 
 (4)    an explanation of the
Plan’s review procedures and the time limits applicable to such procedures, including a statement of the applicant’s right to bring a civil action under Section 502(a) of ERISA following a denial on review of the claim, as described
in Section 13(d) below. 
 This notice of denial will be given to the applicant within ninety (90) days after the Plan
Administrator receives the application, unless special circumstances require an extension of time, in which case, the Plan Administrator has up to an additional ninety (90) days for processing the application. If an extension of time for
processing is required, written notice of the extension will be furnished to the applicant before the end of the initial ninety (90) day period. 

This notice of extension will describe the special circumstances necessitating the additional time and the date by which the Plan
Administrator is to render its decision on the application. 
 (c)    Request for a Review. Any person (or
that person’s authorized representative) for whom an application for benefits is denied, in whole or in part, may appeal the denial by submitting a request for a review to the Plan Administrator within sixty (60) days after the application
is denied. A request for a review shall be in writing and shall be addressed to: 
 Bolt Biotherapeutics, Inc. 

Board of Directors 
 900 Chesapeake
Drive 
 Redwood City, CA 94063 
 A request for
review must set forth all of the grounds on which it is based, all facts in support of the request and any other matters that the applicant feels are pertinent. The applicant (or his or her representative) shall have the opportunity to submit (or
the Plan Administrator may require the applicant to submit) written comments, documents, records, and other information relating to his or her claim. The applicant (or his or her representative) shall be provided, upon request and free of charge,
reasonable access to, and copies of, all documents, records and other information relevant to his or her claim. The review shall take into account all comments, documents, records and other information submitted by the applicant (or his or her
representative) relating to the claim, without regard to whether such information was submitted or considered in the initial benefit determination. 

(d)    Decision on Review. The Plan Administrator will act on each request for review within sixty
(60) days after receipt of the request, unless special circumstances require an extension of time (not to exceed an additional sixty (60) days), for processing the request for a review. If an extension


  
 10. 














 
for review is required, written notice of the extension will be furnished to the applicant within the initial sixty (60) day period. This notice of extension will describe the special
circumstances necessitating the additional time and the date by which the Plan Administrator is to render its decision on the review. The Plan Administrator will give prompt, written or electronic notice of its decision to the applicant. Any
electronic notice will comply with the regulations of the U.S. Department of Labor. In the event that the Plan Administrator confirms the denial of the application for benefits in whole or in part, the notice will set forth, in a manner calculated
to be understood by the applicant, the following: 
 (1)    the specific reason or reasons for the denial; 

(2)    references to the specific Plan provisions upon which the denial is based; 

(3)    a statement that the applicant is entitled to receive, upon request and free of charge, reasonable access
to, and copies of, all documents, records and other information relevant to his or her claim; and 
 (4)    a
statement of the applicant’s right to bring a civil action under Section 502(a) of ERISA. 

(e)    Rules and Procedures. The Plan Administrator will establish rules and procedures, consistent with the
Plan and with ERISA, as necessary and appropriate in carrying out its responsibilities in reviewing benefit claims. The Plan Administrator may require an applicant who wishes to submit additional information in connection with an appeal from the
denial of benefits to do so at the applicant’s own expense. 
 (f)    Exhaustion of Remedies. No
legal action for benefits under the Plan may be brought until the applicant (i) has submitted a written application for benefits in accordance with the procedures described by Section 13(a) above, (ii) has been notified by the Plan
Administrator that the application is denied, (iii) has filed a written request for a review of the application in accordance with the appeal procedure described in Section 13(c) above, and (iv) has been notified that the Plan
Administrator has denied the appeal. Notwithstanding the foregoing, if the Plan Administrator does not respond to an Eligible Employee’s claim or appeal within the relevant time limits specified in this Section 13, the Eligible Employee
may bring legal action for benefits under the Plan pursuant to Section 502(a) of ERISA. 

Section 14.    BASIS OF PAYMENTS TO AND
FROM PLAN. 
 The Plan shall be unfunded, and all cash payments under the Plan shall be paid only from the
general assets of the Company. 
 Section 15.    OTHER PLAN INFORMATION. 

(a)    Employer and Plan Identification Numbers. The Employer Identification Number assigned to the Company
(which is the “Plan Sponsor” as that term is used in ERISA) by the Internal Revenue Service is 47-2804636. The Plan Number assigned to the Plan by the Plan Sponsor pursuant to the instructions of the
Internal Revenue Service is 510. 
 (b)    Ending Date for Plan’s Fiscal Year. The date of the
end of the fiscal year for the purpose of maintaining the Plan’s records is December 31. 

  
 11. 














 (c)    Agent for the Service of Legal Process. The agent
for the service of legal process with respect to the Plan is: 
 Bolt Biotherapeutics, Inc. 

900 Chesapeake Drive 
 Redwood City,
CA 94063 
 In addition, service of legal process may be made upon the Plan Administrator. 

(d)    Plan Sponsor. The “Plan Sponsor” is: 

Bolt Biotherapeutics, Inc. 
 900
Chesapeake Drive 
 Redwood City, CA 94063 

(e)    Plan Administrator. The Plan Administrator is the Board prior to the effective date of a Change in
Control and the Representative upon and following such date. The Plan Administrator’s contact information is: 
 Bolt Biotherapeutics,
Inc. 
 Board of Directors or Representative 

900 Chesapeake Drive 
 Redwood City,
CA 94063 
 The Plan Administrator is the named fiduciary charged with the responsibility for administering the Plan. 

Section 16.    STATEMENT OF ERISA RIGHTS. 

Participants in this Plan (which is a welfare benefit plan sponsored by Bolt Biotherapeutics, Inc.) are entitled to certain rights and
protections under ERISA. If you are an Eligible Employee, you are considered a participant in the Plan and, under ERISA, you are entitled to: 

(a)    Receive Information About Your Plan and Benefits. 

(1)    Examine, without charge, at the Plan Administrator’s office and at other specified locations, such as
worksites, all documents governing the Plan and a copy of the latest annual report (Form 5500 Series), if applicable, filed by the Plan with the U.S. Department of Labor and available at the Public Disclosure Room of the Employee Benefits Security
Administration; 
 (2)    Obtain, upon written request to the Plan Administrator, copies of documents governing
the operation of the Plan and copies of the latest annual report (Form 5500 Series), if applicable, and an updated (as necessary) Summary Plan Description. The Administrator may make a reasonable charge for the copies; and 

(3)    Receive a summary of the Plan’s annual financial report, if applicable. The Plan Administrator is
required by law to furnish each Eligible Employee with a copy of this summary annual report. 
 (b)    Prudent
Actions by Plan Fiduciaries. In addition to creating rights for Plan Eligible Employees, ERISA imposes duties upon the people who are responsible for the operation of the employee benefit plan. The people who operate the Plan, called
“fiduciaries” of the Plan, have a duty to 

  
 12. 














 
do so prudently and in the interest of you and other Eligible Employees and beneficiaries. No one, including your employer, your union or any other person, may fire you or otherwise discriminate
against you in any way to prevent you from obtaining a Plan benefit or exercising your rights under ERISA. 

(c)    Enforce Your Rights. If your claim for a Plan benefit is denied or ignored, in whole or in part, you
have a right to know why this was done, to obtain copies of documents relating to the decision without charge, and to appeal any denial, all within certain time schedules. 

Under ERISA, there are steps you can take to enforce the above rights. For instance, if you request a copy of Plan documents or the latest
annual report from the Plan, if applicable, and do not receive them within thirty (30) days, you may file suit in a Federal court. In such a case, the court may require the Plan Administrator to provide the materials and pay you up to $110 a
day until you receive the materials, unless the materials were not sent because of reasons beyond the control of the Plan Administrator. 

If you have a claim for benefits which is denied or ignored, in whole or in part, you may file suit in a state or Federal court. 

If you are discriminated against for asserting your rights, you may seek assistance from the U.S. Department of Labor, or you may file suit in
a Federal court. The court will decide who should pay court costs and legal fees. If you are successful, the court may order the person you have sued to pay these costs and fees. If you lose, the court may order you to pay these costs and fees, for
example, if it finds your claim is frivolous. 
 (d)    Assistance with Your Questions. If you have any
questions about the Plan, you should contact the Plan Administrator. If you have any questions about this statement or about your rights under ERISA, or if you need assistance in obtaining documents from the Plan Administrator, you should contact
the nearest office of the Employee Benefits Security Administration, U.S. Department of Labor, listed in your telephone directory or the Division of Technical Assistance and Inquiries, Employee Benefits Security Administration, U.S. Department of
Labor, 200 Constitution Avenue N.W., Washington, D.C. 20210. You may also obtain certain publications about your rights and responsibilities under ERISA by calling the publications hotline of the Employee Benefits Security Administration. 

  
 13. 














 APPENDIX A 

BOLT BIOTHERAPEUTICS, INC. 

SEVERANCE AND CHANGE IN CONTROL PLAN 

PARTICIPATION AGREEMENT 

Name:                      

Section 1.    ELIGIBILITY. 

You have been designated as eligible to participate in the Bolt Biotherapeutics, Inc. Severance and Change in Control Plan (the
“Plan”), a copy of which is attached as Annex I to this Participation Agreement (the “Agreement”). Capitalized terms not explicitly defined in this Agreement but defined in the Plan shall have the same
definitions as in the Plan. 
 Section 2.    SEVERANCE BENEFITS. 

Subject to the terms of the Plan and Section 4 of this Agreement, if you are terminated in a Covered Termination, and meet all the other
eligibility requirements set forth in the Plan, including, without limitation, executing the required Release within the applicable time period set forth therein and provided that such Release becomes effective in accordance with its terms, you will
receive the severance benefits set forth in this Section 2. Notwithstanding the schedule for provision of severance benefits as set forth below, the provision of any severance benefits under this Section 2 is subject to any delay in
payment that may be required under Section 5 of the Plan. 
 (a)    Regular Termination. Upon a
Regular Termination, you shall be eligible to receive the following severance benefits during the [twelve (12) / nine (9) / six (6)] months following your employment termination (the “Severance Period”) . 

(1)    Cash Severance Benefits. You will be entitled to continue to receive the cash severance benefits set
forth below, which will be paid to you in equal payroll installments over the applicable Severance Period, provided however that any such payments otherwise scheduled to be made prior to the effective date of your Release will instead accrue and be
paid to you on the first payroll period following your Release effective date: 
 (i)    continued payment of
your Base Salary[; and 
 (ii)    an additional amount equal to a
pro-rata portion of the annual target cash bonus, if any, established for you by the Board (or an authorized committee or designee thereof) for the year in which your Regular Termination occurs. If at the time
of the Regular Termination you are eligible for the annual target cash bonus for the year in which the Regular Termination occurs, but the target percentage (or target dollar amount, if specified as such in the applicable bonus plan) for such bonus
has not yet been established for such year, the target percentage shall be the target percentage established for you for the preceding year (but adjusted, if necessary for your position for the year in which the Termination occurs). For the
avoidance of doubt, the amount of the pro-rata annual target bonus to which you are entitled under this Section 2(a)(1)(ii) will be calculated (1) assuming all articulated performance goals for such
bonus (including, but not limited to, corporate and individual performance, if applicable), for the year of the Regular Termination was achieved at 100% of the target performance levels; (2) with the
pro-rata portion of such amount determined by dividing the number of days you were employed by the Company for the year of the Regular Termination by the total number of














 
days in such calendar year; and (3) ignoring any reduction in your Base Salary that would give rise to your right to resign for Good Reason (such bonus to which you are entitled under this
Section 2(a)(1)(ii).][; and 
 (iii)    an additional amount equal to any performance bonus that you had
earned as of the date of your Regular Termination for the calendar year preceding the Regular Termination, but which has not yet been paid as of the date of your Regular Termination, if and to the extent applicable.] 

(2)    Payment of Continued Group Health Plan Benefits. 

(i)    If you timely elect continued group health plan continuation coverage under COBRA following your
termination date, the Company shall pay directly to the carrier the full amount of your COBRA premiums, or shall provide coverage under any self-funded plan, on behalf of you for your continued coverage under the Company’s group health plans,
including coverage for your eligible dependents, until the earliest of (i) the end of the Severance Period following the date of your termination, (ii) the expiration of your eligibility for the continuation coverage under COBRA, or
(iii) the date when you become eligible for substantially equivalent health insurance coverage in connection with new employment (such period from your termination date through the earliest of (i) through (iii), the “COBRA
Payment Period”). Upon the conclusion of such period of insurance premium payments made by the Company, or the provision of coverage under a self-funded group health plan, you will be responsible for the entire payment of premiums (or
payment for the cost of coverage) required under COBRA for the duration of your eligible COBRA coverage period. For purposes of this Section, (i) references to COBRA shall be deemed to refer also to analogous provisions of state law and
(ii) any applicable insurance premiums that are paid by the Company shall not include any amounts payable by you under an Internal Revenue Code Section 125 health care reimbursement plan, which amounts, if any, are your sole
responsibility. You agree to promptly notify the Company as soon as you become eligible for health insurance coverage in connection with new employment or self-employment. 

(ii)    Notwithstanding the foregoing, if at any time the Company determines, in its sole discretion, that it
cannot provide the COBRA premium benefits without potentially incurring financial costs or penalties under applicable law (including, without limitation, Section 2716 of the Public Health Service Act), then in lieu of paying COBRA premiums
directly to the carrier on your behalf, the Company will instead pay you on the last day of each remaining month of the COBRA Payment Period a fully taxable cash payment equal to the COBRA premium for that month, subject to applicable tax
withholding (such amount, the “Special Severance Payment”), such Special Severance Payment to be made without regard to your election of COBRA coverage or payment of COBRA premiums and without regard to your continued
eligibility for COBRA coverage during the COBRA Payment Period. Such Special Severance Payment shall end upon expiration of the COBRA Payment Period. 

(b)    Change in Control Termination. Upon a Change in Control Termination, you shall be eligible to receive
the following severance benefits. For the avoidance of doubt, in no event shall you be entitled to benefits under both Section 2(a) and this Section 2(b). If you are eligible for severance benefits under both Section 2(a) and this
Section 2(b), you shall receive the benefits set forth in this Section 2(b) and such benefits shall be reduced by any benefits previously provided to you under Section 2(a). 

(1)    Cash Severance Benefit. You will receive the following cash severance benefit payable to you in a
single lump sum on the first payroll period following the later of (i) the effective date of your Release, or (ii) the effective date of the Change in Control,: 













 (i)    an amount equal to [eighteen (18) / twelve (12) / nine
(9)] of your Base Salary; plus 
 (ii)    [150% / 100% /75%] of your annual target cash bonus, if any,
established for you by the Board (or an authorized committee or designee thereof) for the year in which your Change in Control Termination occurs. If at the time of the Change in Control Termination you are eligible for the annual target cash bonus
for the year in which the Change in Control Termination occurs, but the target percentage (or target dollar amount, if specified as such in the applicable bonus plan) for such bonus has not yet been established for such year, the target percentage
shall be the target percentage established for you for the preceding year (but adjusted, if necessary for your position for the year in which the Change in Control Termination occurs). For the avoidance of doubt, the percentage of the annual target
bonus to which you are entitled under this Section 2(b)(1)(ii) will be calculated (1) assuming all articulated performance goals for such bonus (including, but not limited to, corporate and individual performance, if applicable), for the
year of the Change in Control Termination was achieved at 100% of the target levels; (2) as if you had provided services for the entire year for which the bonus relates; and (3) ignoring any reduction in your Base Salary that would give
rise to your right to resign for Good Reason.. 
 (2)    Accelerated Vesting of Stock Awards. 

(i)    Effective as of the later of the effective date of your Release or the effective date of the Change in
Control, to the extent not previously vested: (i) the vesting and exercisability of all outstanding stock options to purchase the Company’s common stock held by you on such date that were granted to you by the Company under the Equity Plan
shall be accelerated in full to the extent not previously fully vested and exercisable, (ii) any reacquisition or repurchase rights held by the Company in respect of common stock issued pursuant to any other stock award granted to you by the
Company under the Equity Plan shall lapse in full, and (iii) the vesting of any other unvested stock awards granted to you by the Company under the Equity Plan, and any issuance of shares triggered by the vesting of such stock awards or any
previously vested stock awards, shall be accelerated in full. For purposes of determining the number of shares that will vest pursuant to the foregoing provision with respect to any performance based vesting award that has multiple vesting levels
depending upon the level of performance, vesting acceleration shall occur with respect to the number of shares subject to the award as if the applicable performance criteria had been attained at a 100% of the target performance level. 

(ii)    In order to give effect to the intent of the foregoing provision, notwithstanding anything to the contrary
set forth in the Equity Plan or the applicable stock award agreement that provides that any then unvested portion of your award will immediately expire upon your termination of service, your stock awards shall remain outstanding following your
Change in Control Termination to give effect to such acceleration as necessary. 
 (iii)    Notwithstanding
anything to the contrary set forth herein, your stock awards shall remain subject to the terms of the Equity Plan or other applicable equity plan under which such awards were granted, including the stock award agreement governing your stock award,
that may apply upon a Change in Control and or/termination of your service and no provision of the Plan or this Agreement shall be construed as to limit the actions that may be taken, or to violate the terms, thereunder. 

(3)    Payment of Continued Group Health Plan Benefits. You will receive the payment for continued group
health plan benefits described in Section 2(a)(2) above, except that the COBRA Payment Period will be equal to the Severance Period applicable to a Change in Control Termination as set forth in Section 2(b)(1) above. 













 Section 3.    [CHANGE IN CONTROL
ACCELERATION. 
 Subject to the terms of Section 2(b)(2)(iii), if a Change in Control occurs while you are an
employee of the Company, 100% of the then-outstanding and unvested stock awards granted to you by the Company will immediately vest in full and, to the extent applicable, become immediately exercisable. If, however, an outstanding stock award is to
vest and/or the amount of the stock award to vest is to be determined based on the achievement of performance criteria, then the stock award will vest as to 100% of the amount of the stock award assuming the performance criteria had been achieved at
100% of the target performance levels for the relevant performance period(s).] 
 Section 4.    REQUIREMENTS
DURING SEVERANCE PERIOD. 
 Your eligibility for and receipt of any severance benefits to
which you may become entitled as described in Section 2 above is expressly contingent upon your timely execution of an effective Release and your compliance with the terms and conditions of the provisions of the Employee
Confidential Information and Invention Assignment Agreement between you and the Company dated [                    ] as may be amended from time to
time (the “CIIA”). Severance benefits under this Agreement shall immediately cease in the event of your violation of the provisions in this Section. 

Section 5.    ACKNOWLEDGEMENTS. 

As a condition to participation in the Plan, you hereby acknowledge each of the following: 

(a)    [If the IPO Date does not occur, the Plan will not become effective, and this Agreement will be void.] 

(b)    The severance benefits that may be provided to you under this Agreement are subject to all of the terms of
the Plan which is incorporated into and becomes part of this Agreement, including but not limited to the reductions under Section 3 of the Plan. 

(c)    Except as explicitly provided herein, contingent upon the IPO Date this Agreement and the Plan supersede and
replace any severance or change in control benefit previously provided to you by the Company, including any provisions to the contrary in your employment offer letter or agreement with the Company. This Agreement and the Plan do not supersede,
replace or otherwise alter the CIIA. 
 (d)    You may not sell, transfer, or otherwise assign or pledge your
right to benefits under this Agreement and the Plan to either your creditors or to your beneficiary, except to the extent permitted by the Plan Administrator if such action would not result in adverse tax consequences under Section 409A. 

(e)    Notwithstanding anything to the contrary in the Plan or this Agreement, your rights under this Agreement may
not be adversely affected by an amendment or termination of the Plan without your written consent. 
 To accept the terms of this Agreement and participate
in the Plan, please sign and date this Agreement in the space provided below and return it to [                    ] no later than
                    , 2021. 














							
	 Bolt Biotherapeutics, Inc.
	 		 	


							
				
	By:	 	 	 		 	
				
	Name:	 	 	 	                                    
                                         
       	 	                                    
                                
				
	Title:	 	 	 		 	
	    

    
     
	 		 	 
	[Eligible Employee]	 	Date














 ANNEX I 

BOLT BIOTHERAPEUTICS, INC. SEVERANCE AND CHANGE
IN CONTROL PLAN