Document:

Document

Exhibit 10.1

CIRCOR CONFIDENTIAL

January 14, 2022

Arjun Sharma

RE:     Retention Agreement

Dear AJ:

We consider your continued service and dedication to CIRCOR essential to our business during a critical period of time. To incentivize you to remain employed with CIRCOR during this critical time, we are pleased to offer you the following modifications to your current salary package, as described in this letter agreement.

Additional Compensation for Interim Role

During the time you serve as the CIRCOR’s interim Chief Financial Officer (“Interim CFO”) and as a result in the increased responsibilities associated therewith, you will receive additional compensation in the amount of $4,500 per pay period (the “Additional Compensation”). This amount will be subject to the typical deductions and withholdings. This Additional Compensation will end with the pay period in which the permanent Chief Financial Officer joins CIRCOR or you cease serving as Interim CFO, whichever is earlier. The Additional Compensation will not be included in the calculation of any incentive compensation awards for which you may be eligible, nor will it be considered as salary for purposes of any severance agreements in place between you and CIRCOR. 

Educational Bonus

CIRCOR will pay for you to attend the Advanced Management Program, which is a part of the Wharton School’s Executive Education program, in an amount not to exceed $65,000. You must repay this amount in full, if you leave CIRCOR’s employ for any reason within one year of completion of the program.

Retention Bonus

In recognition of your continued service with CIRCOR through and until December 31, 2022 (the “Retention Period”), we are offering you a retention bonus in the amount of $140,000, less all applicable withholdings and deductions required by law (the “Retention Bonus”).

The Retention Bonus will be paid in two installments. The first installment will be $95,000 and will be payable on June 30, 2022 (“First Payment Date”), with payment to occur on the first regularly scheduled pay date following the First Payment Date . In order to be eligible for the first installment, you must meet the following criteria:

1.         You are actively employed by CIRCOR, and your performance has been satisfactory, as determined in CIRCOR’s sole discretion, from the date of this letter agreement through the First Payment Date.

2.         You have not given notice of your intent to resign your employment.

3.         CIRCOR has not given you notice of its intent to terminate your employment on or before the First Payment Date; provided, however, that you will be eligible to receive a pro rata portion of the first installment if CIRCOR gives you notice of its intent to terminate your employment other than for cause, as determined in CIRCOR’s sole discretion, on or before the First Payment Date and you satisfy all of the other eligibility criteria.

If you are terminated for Cause (as that term is defined in your current Change of Control Agreement), after the first installment is paid but prior to the end of the Retention Period, you agree to repay the first installment in full within fifteen (15) calendar days of the termination of your employment. If CIRCOR terminates you for a reason other than for Cause (as that term is defined in your current Change of Control Agreement), the Retention Bonus shall be accelerated and payable in its entirety within sixty (60) days of your last day of work as a result of such Company termination.

The second installment of $45,000 will be made on the first regularly scheduled pay date after the end of the Retention Period. In order to be eligible for the second installment, you must meet the following criteria:

1.         You are actively employed by CIRCOR (in any Executive Committee level role), and your performance has been satisfactory, as determined in CIRCOR’s sole discretion, through the end of the Retention Period;

2.         You have not given notice of your intent to resign your employment at any point prior to the end of the Retention Period; and 

3.         CIRCOR has not given you notice of its intent to terminate your employment on or before the end of the Retention Period; provided, however, that you will be eligible to receive a pro rata portion of the second installment if CIRCOR gives you notice of its intent to terminate your employment other than for cause, as determined in CIRCOR’s sole discretion, before the end of the Retention Period and you satisfy all of the other eligibility criteria.

Your employment remains at-will, meaning that you and CIRCOR may terminate the employment relationship at any time, with or without cause, and with or without notice.

This letter agreement is intended to comply with, or be exempt from, Section 409A of the Internal Revenue Code of 1986, as amended (“Section 409A”) and shall be construed and administered in accordance with Section 409A.

This letter agreement contains all of the understandings and representations between CIRCOR and you relating to the Retention Bonus and supersedes all prior and contemporaneous understandings, discussions, agreements, representations, and warranties, both written and oral, with respect to any retention bonus; provided, however, that this letter agreement shall not 

supersede any other agreements between CIRCOR and you. Such agreements shall remain in full force and effect. This letter agreement may not be amended or modified unless in writing signed by both the Chief People Officer of CIRCOR and you.

This letter agreement and all related documents, and all matters arising out of or relating to this letter agreement, whether sounding in contract, tort, or statute for all purposes shall be governed by and construed in accordance with the laws of the State of Massachusetts, including its statutes of limitations and Massachusetts choice of law statutes, without giving effect to any conflict of laws principles that would cause the laws of any other jurisdiction to apply.

Please sign and date this letter agreement and return the signed copy to Jessica Wenzell, General Counsel & Chief People Officer within five (5) days.

We look forward to your continued employment with us.

Very truly yours,
Jessica W. Wenzell
SVP, General Counsel & Chief People Officer

Agreed to and accepted by:    

Arjun Sharma

Date:EX-4.1

 Exhibit 4.1 

PRIVATE WARRANT AGREEMENT 

between 
 ATLANTIC COASTAL
ACQUISITION CORP. II 
 and 

CONTINENTAL STOCK TRANSFER & TRUST COMPANY 

Dated as of January 13, 2022 

THIS PRIVATE WARRANT AGREEMENT (as amended, supplemented or otherwise modified from time to time, this “Agreement”), dated as
of January 13, 2022, is by and between Atlantic Coastal Acquisition Corp. II, a Delaware corporation (the “Company”), and Continental Stock Transfer & Trust Company, a New York limited purpose trust company, as warrant
agent (the “Warrant Agent,” also referred to herein as the “Transfer Agent”). 
 WHEREAS, the Company is engaged
in an initial public offering (the “Offering”) of units of the Company’s equity securities, each such unit comprised of one share of Series A common stock of the Company, par value $0.0001 per share (“Common
Stock”), and one-half of one public warrant (the “Units”) and, in connection therewith, has determined to issue and deliver up to 13,050,000 warrants (or up to 15,007,500 warrants if
the over-allotment option is exercised in full) to public investors in the Offering (the “Public Warrants”); 
 WHEREAS, on
January 13, 2022, the Company entered into that certain Private Placement Warrant Purchase Agreement with Atlantic Coastal Acquisition Management II LLC, a Delaware limited liability company (the “Sponsor”), pursuant to which the
Sponsor agreed to purchase an aggregate of 12,290,000 warrants (or 13,856,000 warrants if the over-allotment option is exercised in full) (the “Private Placement Warrants”) simultaneously with the closing of the Offering (and the
closing of the over-allotment option, if applicable), at a purchase price of $1.00 per Private Placement Warrant; 
 WHEREAS, in order to
finance the Company’s transaction costs in connection with an intended initial Business Combination (as defined below), the Sponsor or affiliates of the Sponsor or certain of the Company’s officers and directors may, but are not obligated
to, loan the Company funds as the Company may require, of which up to $1,500,000 of such loans may be convertible into up to an additional 1,500,000 warrants at a price of $1.00 per warrant (the “Working Capital Warrants” and,
together with the Private Placement Warrants, the “Warrants”); 
 WHEREAS, the Company has filed with the U.S. Securities
and Exchange Commission (the “Commission”) a registration statement on Form S-1, File No. 333-261459 (the “Registration Statement”) and a
prospectus (the “Prospectus”), for the registration, under the Securities Act of 1933, as amended (the “Securities Act”), of the issuance of the Units, the Public Warrants and the shares of Common Stock included in the
Units; 
 WHEREAS, the Company desires the Warrant Agent to act on behalf of the Company, and the Warrant Agent is willing to so act, in
connection with the issuance, registration, transfer, exchange and exercise of the Warrants; 

 WHEREAS, the Company desires to provide for the form and provisions of the Warrants, the
terms upon which they shall be issued and exercised, and the respective rights, limitation of rights, and immunities of the Company, the Warrant Agent, and the holders of the Warrants; and 

WHEREAS, all acts and things have been done and performed which are necessary to make the Warrants, when executed on behalf of the Company and
countersigned by or on behalf of the Warrant Agent (if a physical certificate is issued), as provided herein, the valid, binding and legal obligations of the Company, and to authorize the execution and delivery of this Agreement. 

NOW, THEREFORE, in consideration of the mutual agreements herein contained, the parties hereto agree as follows: 

1. Appointment of Warrant Agent. The Company hereby appoints the Warrant Agent to act as agent for the Company for the Warrants, and
the Warrant Agent hereby accepts such appointment and agrees to perform the same in accordance with the express terms and conditions set forth in this Agreement. 

2. Warrants. 
 2.1.
Form of Warrant. Each Warrant shall initially be issued in registered form only. 
 2.2. Effect of Countersignature. If a
physical certificate is issued, unless and until countersigned by the Warrant Agent pursuant to this Agreement, a certificated Warrant shall be invalid and of no effect and may not be exercised by the holder thereof. 

2.3. Registration. 

2.3.1. Warrant Register. The Warrant Agent shall maintain books (the “Warrant Register”) for the registration of the
initial issuance of the Warrants and the registration of transfer of the Warrants. Upon the initial issuance of the Warrants in book-entry form, the Warrant Agent shall issue and register the Warrants in the names of the respective holders thereof
in such denominations and otherwise in accordance with instructions delivered to the Warrant Agent by the Company. If requested, the Registered Holder (as defined below) shall be issued a definitive certificate in physical form evidencing such
Warrants which shall be in the form attached hereto as Exhibit B (the “Definitive Warrant Certificate”). 
 Physical
certificates, if issued, shall be signed by, or bear the facsimile signature of, the Chairman of the board of directors of the Company (the “Board”), Chief Executive Officer, Chief Financial Officer, the President or the Secretary
or other principal officer of the Company. In the event the person whose facsimile signature has been placed upon any Warrant shall have ceased to serve in the capacity in which such person signed the Warrant before such Warrant is issued, it may be
issued with the same effect as if he or she had not ceased to be such at the date of issuance. 
 2.3.2. Registered Holder. Prior to
due presentment for registration of transfer of any Warrant, the Company and the Warrant Agent may deem and treat the person in whose name such Warrant is registered in the Warrant Register (the “Registered Holder”) as the absolute
owner of such Warrant and of each Warrant represented thereby (notwithstanding any notation of ownership or other writing on any physical certificate made by anyone other than the Company or the Warrant Agent), for the purpose of any exercise
thereof, and for all other purposes, and neither the Company nor the Warrant Agent shall be affected by any notice to the contrary. 

 3. Terms and Exercise of Warrants. 

3.1. Warrant Price. Each whole Warrant, when countersigned by the Warrant Agent, shall entitle the Registered Holder thereof, subject
to the provisions of such Warrant and of this Agreement, to purchase from the Company the number of shares of Common Stock stated therein, at the price of $11.50 per share, subject to the adjustments provided in Section 4 hereof and in the
penultimate sentence of this Section 3.1. The term “Warrant Price”, as used in this Agreement shall mean the price per share at which each share of Common Stock may be purchased at the time a Warrant is
exercised. The Company in its sole discretion may lower the Warrant Price at any time prior to the Expiration Date (as defined below) for a period of not less than twenty (20) Business Days, provided, that the Company shall provide at
least twenty (20) days prior written notice of such reduction to Registered Holders of the Warrants and, provided, further, that any such reduction shall be identical among all of the Warrants. The term “Business
Day” means a day other than a Saturday, Sunday or federal holiday, on which banks in New York City are generally open for normal business. 

3.2. Duration of Warrants. A Warrant may be exercised only during the period (the “Exercise Period”) commencing on the
later of: (i) the date that is thirty (30) days after the first date on which the Company completes a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination, involving the Company
and one or more businesses (a “Business Combination”), or (ii) the date that is twelve (12) months from the date of the closing of the Offering and terminating at the earlier to occur of (x) 5:00 p.m., New York City time
on the date that is five (5) years after the date on which the Company completes its initial Business Combination and (y) the liquidation of the Company (the “Expiration Date”); provided, however, that the
exercise of any Warrant shall be subject to the satisfaction of any applicable conditions, as set forth in subsection 3.3.2 hereof, with respect to an effective registration statement. Each Warrant not exercised on or before the Expiration
Date shall become null and void, and all rights thereunder and all rights in respect thereof under this Agreement shall cease at 5:00 p.m., New York City time on the Expiration Date. The Company in its sole discretion may extend the duration of the
Warrants by delaying the Expiration Date; provided, however, that the Company shall provide at least twenty (20) days prior written notice of any such extension to Registered Holders of the Warrants and, provided,
further, that any such extension shall be identical in duration among all the Warrants and the Public Warrants. 
 3.3. Exercise
of Warrants. 
 3.3.1. Payment. Subject to the provisions of the Warrant and this Agreement, a Warrant, when countersigned by
the Warrant Agent, may be exercised by the Registered Holder thereof by delivering to the Warrant Agent at its corporate trust department (i) the Definitive Warrant Certificate evidencing the Warrants to be exercised, or in the case of a
Warrant represented by a book-entry, the Warrants to be exercised (the “Book-Entry Warrants”) on the records of The Depository Trust Company (the “Depository”), to an account of the Warrant Agent at the Depository
designated for such purposes in writing by the Warrant Agent to the Depository from time to time, (ii) an election to purchase (“Election to Purchase”) shares of Common Stock 

 
pursuant to the exercise of a Warrant, properly completed and executed by the Registered Holder on the reverse of the Definitive Warrant Certificate or, in the case of a Book-Entry Warrant,
properly delivered by the Participant in accordance with the Depository’s procedures, and (iii) the payment in full the Warrant Price for each full share of Common Stock as to which the Warrant is exercised and any and all applicable taxes
due in connection with the exercise of the Warrant, the exchange of the Warrant for the shares of Common Stock and the issuance of such share of Common Stock, as follows: 

(a) in lawful money of the United States, in good certified check or good bank draft payable to the Warrant Agent or by wire
transfer of immediately available funds; 
 (b) by surrendering the Warrants for that number of shares of Common Stock equal
to the quotient obtained by dividing (x) the product of the number of shares of Common Stock underlying the Warrants, multiplied by the difference between the “Sponsor Fair Market Value”, as defined in this subsection 3.3.1(b),
over the Warrant Price by (y) the Sponsor Fair Market Value. Solely for purposes of this subsection 3.3.1(b), the “Sponsor Fair Market Value” shall mean the average last sale price of the Common Stock for the ten
(10) trading days ending on the third trading day prior to the date on which notice of exercise of the Warrant is sent to Warrant Agent; or 

as provided in Section 6.4 hereof. 

3.3.2. Issuance of Shares of Common Stock on Exercise. As soon as practicable after the exercise of any Warrant and the clearance of
the funds in payment of the Warrant Price (if payment is pursuant to subsection 3.3.1(a) hereof), the Company shall issue to the Registered Holder of such Warrant a book-entry position or certificate, as applicable, for the number of full
shares of Common Stock to which he, she or it is entitled, registered in such name or names as may be directed by him, her or it, and if such Warrant shall not have been exercised in full, a new book-entry position or countersigned Warrant, as
applicable, for the number of shares of Common Stock as to which such Warrant shall not have been exercised. Notwithstanding the foregoing, the Company shall not be obligated to deliver any shares of Common Stock pursuant to the exercise of a
Warrant and shall have no obligation to settle such Warrant exercise unless a registration statement under the Securities Act with respect to the shares of Common Stock underlying the Warrants is then effective and a prospectus relating thereto is
current or a valid exemption from registration is available. No Warrant shall be exercisable and the Company shall not be obligated to issue shares of Common Stock upon exercise of a Warrant unless the shares of Common Stock issuable upon such
Warrant exercise have been registered, qualified or deemed to be exempt from registration or qualification under the securities laws of the state of residence of the Registered Holder of the Warrants. In the event that the conditions in the two
immediately preceding sentences are not satisfied with respect to a Warrant, the holder of such Warrant shall not be entitled to exercise such Warrant and such Warrant may have no value and expire worthless, in which case the purchaser of a Unit
containing such Warrants shall have paid the full purchase price for the Unit solely for the shares of Common Stock underlying such Unit. In no event will the Company be required to net cash settle the Warrant exercise. If, by reason of any exercise
of Warrants on a “cashless basis”, the holder of any Warrant would be entitled, upon the exercise of such Warrant, to receive a fractional interest in a share of Common Stock, the Company shall round down to the nearest whole number the
number of shares of Common Stock to be issued to 

 
such holder. Notwithstanding anything in this Agreement, for so long as any Warrant is held by the Sponsor or any Permitted Transferees (as defined below), such Warrant will not be exercisable
more than five (5) years from the effective date of the Registration Statement, in accordance with Financial Industry Regulatory Authority, Inc. (“FINRA”) Rules. In addition, no such Warrant will contain terms which allow the Sponsor
or any Permitted Transferees to receive or accrue cash dividends prior to the exercise of the Warrants. 
 3.3.3. Valid Issuance.
All shares of Common Stock issued upon the proper exercise of a Warrant in conformity with this Agreement shall be validly issued, fully paid and non-assessable. 

3.3.4. Date of Issuance. Each person in whose name any book-entry position or certificate, as applicable, for shares of Common Stock
is issued shall for all purposes be deemed to have become the holder of record of such shares of Common Stock on the date on which the Warrant, or book-entry position representing such Warrant, was surrendered and payment of the Warrant Price was
made, irrespective of the date of delivery of such certificate in the case of a certificated Warrant, except that, if the date of such surrender and payment is a date when the share transfer books of the Company or book-entry system of the Warrant
Agent are closed, such person shall be deemed to have become the holder of such shares of Common Stock at the close of business on the next succeeding date on which the share transfer books or book-entry system of the Warrant Agent are open. 

3.3.5. Maximum Percentage. A holder of a Warrant may notify the Company in writing in the event it elects to be subject to the
provisions contained in this subsection 3.3.5; however, no holder of a Warrant shall be subject to this subsection 3.3.5 unless he, she or it makes such election. If the election is made by a holder, the Warrant Agent shall not effect
the exercise of the holder’s Warrant, and such holder shall not have the right to exercise such Warrant, to the extent that after giving effect to such exercise, such person (together with such person’s affiliates), to the Warrant
Agent’s actual knowledge, would beneficially own in excess of 9.8%, or such other amount as a holder may specify (the “Maximum Percentage”) of the shares of Common Stock outstanding immediately after giving effect to such
exercise. For purposes of the foregoing sentence, the aggregate number of shares of Common Stock beneficially owned by such person and its affiliates shall include the number of shares of Common Stock issuable upon exercise of the Warrant with
respect to which the determination of such sentence is being made, but shall exclude shares of Common Stock that would be issuable upon (x) exercise of the remaining, unexercised portion of the Warrant beneficially owned by such person and its
affiliates and (y) exercise or conversion of the unexercised or unconverted portion of any other securities of the Company beneficially owned by such person and its affiliates (including, without limitation, any convertible notes or convertible
preferred stock or warrants) subject to a limitation on conversion or exercise analogous to the limitation contained herein. Except as set forth in the preceding sentence, for purposes of this paragraph, beneficial ownership shall be calculated in
accordance with Section 13(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). For purposes of the Warrant, in determining the number of issued and outstanding shares of Common Stock, the holder may rely
on the number of issued and outstanding shares of Common Stock as reflected in (1) the Company’s most recent annual report on Form 10-K, quarterly report on Form
10-Q, current report on Form 8-K or other public filing with the Commission as the case may be, (2) a more recent public announcement by the Company or (3) any
other notice by the Company 

 
or the Transfer Agent setting forth the number of shares of Common Stock issued and outstanding. For any reason at any time, upon the written request of the holder of the Warrant, the Company
shall, within two (2) Business Days, confirm orally and in writing to such holder the number of shares of Common Stock then outstanding. In any case, the number of issued and outstanding shares of Common Stock shall be determined after giving
effect to the conversion or exercise of equity securities of the Company by the holder and its affiliates since the date as of which such number of issued and outstanding shares of Common Stock was reported. By written notice to the Company, the
holder of a Warrant may from time to time increase or decrease the Maximum Percentage applicable to such holder to any other percentage specified in such notice; provided, however, that any such increase shall not be effective until
the sixty-first (61st) day after such notice is delivered to the Company. 
 3.3.6. Lock-up of
Private Placement Warrants. The Warrants held by the Sponsor (or any Permitted Transferees) and the shares of Common Stock that are issuable upon exercise of such Warrants have been deemed compensation by the FINRA and are therefore subject to a
180-day lock-up pursuant to FINRA Rule 5110(e)(1), commencing on the effective date of the Registration Statement. Pursuant to FINRA Rule 5110(e)(1), these securities
will not be sold during the Offering, or sold, transferred, assigned, pledged, or hypothecated, or be the subject of any hedging, short sale, derivative, put or call transaction that would result in the economic disposition of the securities by any
person for a period of 180 days immediately following the effective date of the Registration Statement or commencement of sales of the Offering, except to any underwriter and selected dealer participating in the Offering and their bona fide officers
or partners (provided that all securities so transferred remain subject to the lockup restriction above for the remainder of the time period) or pursuant to another exception to the applicability of FINRA Rule 5110(e)(1). 

4. Adjustments. 
 4.1.
Stock Dividends. 
 4.1.1. Stock Dividends and Split-Ups. If after the date hereof,
and subject to the provisions of Section 4.6 hereof, the number of issued and outstanding shares of Common Stock is increased by a stock dividend payable in shares of Common Stock, or by a
split-up of shares of Common Stock, or other similar event, then, on the effective date of such stock dividend, split-up or similar event, the number of shares of Common
Stock issuable on exercise of each Warrant shall be increased in proportion to such increase in the issued and outstanding shares of Common Stock. A rights offering to holders of shares of Common Stock entitling holders to purchase shares of Common
Stock at a price less than the “Fair Market Value” (as defined below) shall be deemed a stock dividend of a number of shares of Common Stock equal to the product of (i) the number of shares of Common Stock actually sold in such rights
offering (or issuable under any other equity securities sold in such rights offering that are convertible into or exercisable for the shares of Common Stock) multiplied by (ii) one (1) minus the quotient of (x) the price per share of
Common Stock paid in such rights offering divided by (y) the Fair Market Value. For purposes of this subsection 4.1.1, (i) if the rights offering is for securities convertible into or exercisable for shares of Common Stock, in
determining the price payable for the shares of Common Stock, there shall be taken into account any consideration received for such rights, as well as any additional amount payable upon exercise or conversion and (ii) “Fair Market
Value” 

 
means the volume weighted average price of the Common Stock as reported during the ten trading day period ending on the trading day prior to the first date on which the shares of Common Stock
trade on the applicable exchange or in the applicable market, regular way, without the right to receive such rights. Notwithstanding anything to the contrary herein, no shares of Common Stock shall be issued at less than their par value. 

4.1.2. Extraordinary Dividends. If the Company, at any time while the Warrants are outstanding and unexpired, shall pay a dividend or
make a distribution in cash, securities or other assets to the holders of the shares of Common Stock on account of such shares of Common Stock (or other shares of the Company’s share capital into which the Warrants are convertible), other than
(a) as described in subsection 4.1.1 above, (b) Ordinary Cash Dividends (as defined below), (c) to satisfy the redemption rights of the holders of the shares of Common Stock in connection with a proposed initial Business
Combination, (d) to satisfy the redemption rights of the holders of shares of Common Stock in connection with a stockholder vote to approve an amendment to the Company’s amended and restated certificate of incorporation to modify the
substance or timing of the Company’s obligation to redeem 100% of the shares of Common Stock if the Company does not complete its initial Business Combination within the period set forth in the Company’s amended and restated certificate of
incorporation, or (e) in connection with the redemption of the shares of Common Stock included in the Units sold in the Offering upon the Company’s failure to complete the Company’s initial Business Combination (any such non-excluded event being referred to herein as an “Extraordinary Dividend”), then the Warrant Price shall be decreased, effective immediately after the effective date of such Extraordinary Dividend,
by the amount of cash and/or the fair market value (as determined by the Board, in good faith) of any securities or other assets paid on each share of Common Stock in respect of such Extraordinary Dividend. For purposes of this subsection
4.1.2, “Ordinary Cash Dividends” means any cash dividend or cash distribution which, when combined on a per share basis, with the per share amounts of all other cash dividends and cash distributions paid on the shares of Common
Stock during the 365-day period ending on the date of declaration of such dividend or distribution (as adjusted to appropriately reflect any of the events referred to in other subsections of this
Section 4 and excluding cash dividends or cash distributions that resulted in an adjustment to the Warrant Price or to the number of shares of Common Stock issuable on exercise of each Warrant) does not exceed $0.50. 

4.2. Aggregation of Shares. If after the date hereof, and subject to the provisions of Section 4.6 hereof,
the number of issued and outstanding shares of Common Stock is decreased by a consolidation, combination, reverse stock split or reclassification of shares of Common Stock or other similar event, then, on the effective date of such consolidation,
combination, reverse stock split, reclassification or similar event, the number of shares of Common Stock issuable on exercise of each Warrant shall be decreased in proportion to such decrease in issued and outstanding shares of Common Stock. 

4.3. Adjustments in Warrant Price. 

4.3.1. Adjustment. Whenever the number of shares of Common Stock purchasable upon the exercise of the Warrants is adjusted, as
provided in Section 4.1 or 4.2 hereof, the Warrant Price shall be adjusted (to the nearest cent) by multiplying such Warrant Price immediately prior to such adjustment by a fraction (x) the numerator of which
shall be the number of shares of Common Stock purchasable upon the exercise of the Warrants immediately prior to such adjustment, and (y) the denominator of which shall be the number of shares of Common Stock so purchasable immediately
thereafter.. 

 4.3.2. Additional Shares. If (x) the Company issues additional shares of Common
Stock or securities convertible into or exercisable or exchangeable for shares of Common Stock for capital raising purposes in connection with the closing of its initial Business Combination at an issue price or effective issue price of less than
$9.20 per share of Common Stock, with such issue price or effective issue price to be determined in good faith by the Board (and in the case of any such issuance to the Sponsor or their affiliates, without taking into account any founder shares held
by the Sponsor or their affiliates, as applicable, prior to such issuance) (the “Newly Issued Price”), (y) the aggregate gross proceeds from such issuances represent more than 60% of the total equity proceeds, and interest thereon,
available for the funding of an initial Business Combination on the date of the consummation of such initial Business Combination (net of redemptions), and (z) the volume weighted average trading price of the Common Stock during the 20 trading
day period starting on the trading day prior to the day on which the Company consummates an initial Business Combination (such price, the “Market Value”) is below $9.20 per share, the Warrant Price will be adjusted (to the nearest
cent) to be equal to 115% of the higher of the Market Value and the Newly Issued Price, and the $18.00 per share redemption trigger price (as described in Section 6 hereof) will be adjusted (to the nearest cent) to be equal
to 180% of the higher of the Market Value and the Newly Issued Price. 
 4.4. Replacement of Securities upon Reorganization, etc. In
case of any reclassification or reorganization of the issued and outstanding shares of Common Stock (other than a change covered by Section 4.1 or 4.2 hereof or that solely affects the par value of such shares of
Common Stock), or in the case of any merger or consolidation of the Company with or into another entity in which any “person” or “group” (as such terms are used in Section 13(d) and 14(d) of the Exchange Act) acquires more
than 50% of the voting power of the Company’s securities or conversion of the Company into another type of entity (other than a consolidation or merger in which the Company is the continuing entity and that does not result in any
reclassification or reorganization of the outstanding shares of Common Stock), or in the case of any sale or conveyance to another corporation or entity of the assets or other property of the Company as an entirety or substantially as an entirety in
connection with which the Company is dissolved, the holders of the Warrants shall thereafter have the right to purchase and receive, upon the basis and upon the terms and conditions specified in the Warrants and in lieu of the shares of Common Stock
of the Company immediately theretofore purchasable and receivable upon the exercise of the rights represented thereby, the kind and amount of shares of stock or other securities or property (including cash) receivable upon such reclassification,
reorganization, merger or consolidation, or upon a dissolution following any such sale or transfer, that the holder of the Warrants would have received if such holder had exercised his, her or its Warrant(s) immediately prior to such event (the
“Alternative Issuance”); provided, however, that (i) if the holders of the shares of Common Stock were entitled to exercise a right of election as to the kind or amount of securities, cash or other assets
receivable upon such consolidation or merger, then the kind and amount of securities, cash or other assets constituting the Alternative Issuance for which each Warrant shall become exercisable shall be deemed to be the weighted average of the kind
and amount received per share by the holders of the shares of Common Stock in such consolidation or merger that affirmatively make such election or (ii) if a tender, exchange or redemption offer shall

 
have been made to and accepted by the shares of Common Stock (other than a tender, exchange or redemption offer made by the Company in connection with redemption rights held by stockholders of
the Company as provided for in the Company’s Amended and Restated Certificate of Incorporation, or as a result of the redemption of the shares of Common Stock by the Company if a proposed initial Business Combination is presented to the
stockholders of the Company for approval) under circumstances in which, upon completion of such tender or exchange offer, the maker thereof, together with members of any group (within the meaning of Rule
13d-5(b)(1) under the Exchange Act) of which such maker is a part, and together with any affiliate or associate of such maker (within the meaning of Rule 12b-2 under the
Exchange Act) and any members of any such group of which any such affiliate or associate is a part, own beneficially (within the meaning of Rule 13d-3 under the Exchange Act) securities representing more than
50% of the aggregate voting power, including the power to vote on the election of directors of the Company, of the issued and outstanding equity securities of the Company, and (for the avoidance of doubt) such tender offer results in a change of
control of the Company, the holder of a Warrant shall be entitled to receive as the Alternative Issuance, the highest amount of cash, securities or other property to which such holder would actually have been entitled as a stockholder if such
Warrant holder had exercised the Warrant prior to the expiration of such tender or exchange offer, accepted such offer and all of the shares of Common Stock held by such holder had been purchased pursuant to such tender or exchange offer, subject to
adjustments (from and after the consummation of such tender or exchange offer) as nearly equivalent as possible to the adjustments provided for in this Section 4 and, in each case, if less than seventy percent (70%) of the
consideration receivable by the holders of the shares of Common Stock in the applicable event is payable in the form of common stock in the successor entity that is listed for trading on a national securities exchange or is quoted in an established over-the-counter market, or is to be so listed for trading or quoted immediately following such event, and if the Registered Holder properly exercises the Warrant within
thirty (30) days following the public disclosure of the consummation of such applicable event by the Company pursuant to a current report on Form 8-K filed with the Commission, the Warrant Price shall be
reduced by an amount (in dollars) equal to the difference, if positive, of (i) the Warrant Price in effect prior to such reduction minus (ii) (A) the Per Share Consideration (as defined below) (but in no event less than zero) minus
(B) the Black-Scholes Warrant Value (as defined below) (which amount determined under this clause (ii) shall not be less than zero). The “Black-Scholes Warrant Value” means the value of a Warrant immediately prior to the
consummation of the applicable event based on the Black-Scholes Warrant Model for an uncapped American Call on Bloomberg Financial Markets (“Bloomberg”), as calculated by an accounting, appraisal, investment banking firm or
consultant of nationally recognized standing that is, in the good faith judgment of the Board, qualified to make such calculation. For purposes of calculating such amount, (1) the price of each share of Common Stock shall be the average last
reported sale price of the Common Stock as reported during the ten (10) trading day period ending on the trading day prior to the effective date of the applicable event, (2) the assumed volatility shall be the ninety (90) day
volatility obtained from the HVT function on Bloomberg determined as of the trading day immediately prior to the day of the announcement of the applicable event unless the third party valuation firm definitively determines that a different
volatility is more appropriate, and (3) the assumed risk-free interest rate shall correspond to the U.S. Treasury rate for a period equal to the remaining term of the Warrant. “Per Share Consideration” means (i) if the
consideration paid to holders of the shares of Common Stock consists exclusively of cash, the amount of such cash per share of Common Stock, and (ii) in all other cases, the volume weighted average price of the shares

 
of Common Stock as reported during the ten (10) trading day period ending on the trading day prior to the effective date of the applicable event. If any reclassification or reorganization
also results in a change in shares of Common Stock covered by subsection 4.1.1 hereof, then such adjustment shall be made pursuant to subsection 4.1.1 or Sections 4.2, or 4.3 hereof and this
Section 4.4. The provisions of this Section 4.4 shall similarly apply to successive reclassifications, reorganizations, mergers or consolidations, sales or other transfers. In no event will the
Warrant Price be reduced to less than the par value per share issuable upon exercise of the Warrant. 
 4.5. Notices of Changes in
Warrant. Upon every adjustment of the Warrant Price or the number of shares of Common Stock issuable upon exercise of a Warrant, the Company shall give written notice thereof to the Warrant Agent, which notice shall state the Warrant Price
resulting from such adjustment and the increase or decrease, if any, in the number of shares of Common Stock purchasable at such price upon the exercise of a Warrant, setting forth in reasonable detail the method of calculation and the facts upon
which such calculation is based; provided, however, that no adjustment to the number of shares of Common Stock issuable upon exercise of a Warrant shall be required until cumulative adjustments amount to one percent (1%) or more of the number of
shares of Common Stock issuable upon exercise of a Warrant as last adjusted; provided, further, that any such adjustments that are not made are carried forward and taken into account in any subsequent adjustment. Notwithstanding the foregoing, all
such carried forward adjustments shall be made (i) in connection with any subsequent adjustment that (taken together with such carried forward adjustments) would result in a change of at least one percent (1%) in the number of shares of Common
Stock issuable upon exercise of a Warrant and (ii) on the exercise date of any Warrant. Upon the occurrence of any event specified in Sections 4.1, 4.2, 4.3 or 4.4 hereof, the Company shall give written notice of the
occurrence of such event to each holder of a Warrant, at the last address set forth for such holder in the Warrant Register, of the record date or the effective date of the event. Failure to give such notice, or any defect therein, shall not affect
the legality or validity of such event. 
 4.6. No Fractional Shares. Notwithstanding any provision contained in this Agreement to
the contrary, the Company shall not issue a fractional share of Common Stock upon the exercise of Warrants. If, by reason of any adjustment made pursuant to this Section 4, the holder of any Warrant would be entitled, upon
the exercise of such Warrant, to receive a fractional interest in a share, the Company shall, upon such exercise, round down to the nearest whole number the number of shares of Common Stock to be issued to such holder. 

4.7. Form of Warrant. The form of Warrant need not be changed because of any adjustment pursuant to this
Section 4, and Warrants issued after such adjustment may state the same Warrant Price and the same number of shares of Common Stock as is stated in the Warrants initially issued pursuant to this Agreement; provided,
however, that the Company may at any time in its sole discretion make any change in the form of Warrant that the Company may deem appropriate and that does not affect the substance thereof, and any Warrant thereafter issued or countersigned,
whether in exchange or substitution for an outstanding Warrant or otherwise, may be in the form as so changed. 

 5. Transfer and Exchange of Warrants. 

5.1. Transferability. The Warrants and any shares of Common Stock held by the Sponsor or any Permitted Transferees and issued upon
exercise of the Warrants may only be transferred by the holders thereof: 
 (a) to any persons (including their affiliates
and members) participating in the private placement of the Private Placement Warrants; 
 (b) among the Company’s
founders, or to the Company’s officers, directors and employees; 
 (c) in the case of an entity, as a distribution to
its, partners, stockholders or members upon its liquidation; 
 (d) by bona fide gift to a member of the holder’s
immediate family or to a trust, the beneficiary of which is a member of the holder’s immediate family, for estate planning purposes; 

(e) by virtue of the laws of descent and distribution upon death; 

(f) pursuant to a qualified domestic relations order; 

(g) by certain pledges to secure obligations incurred in connection with purchases of the Company’s securities; 

(h) by private sales or transfers at prices no greater than the price at which the securities were originally purchased; or

 (i) to the Company for no value for cancellation in connection with the completion of the initial Business Combination;

 provided, however, that, in the case of clauses (a) through (h), any such transferees (the “Permitted Transferees”)
enter into a written agreement with the Company agreeing to be bound by the transfer restrictions in this Agreement. 
 5.2. Registration
of Transfer. The Warrant Agent shall register the transfer, from time to time, of any outstanding Warrant upon the Warrant Register, upon surrender of such Warrant for transfer, properly endorsed with signatures properly guaranteed and
accompanied by appropriate instructions for transfer. Upon any such transfer, a new Warrant representing an equal aggregate number of Warrants shall be issued and the old Warrant shall be cancelled by the Warrant Agent. In the case of certificated
Warrants, the Warrants so cancelled shall be delivered by the Warrant Agent to the Company from time to time upon request. 
 5.3.
Procedure for Surrender of Warrants. Warrants may be surrendered to the Warrant Agent, together with a written request for exchange or transfer, and thereupon the Warrant Agent shall issue in exchange therefor one or more new Warrants as
requested by the Registered Holder of the Warrants so surrendered, representing an equal aggregate number of Warrants; provided, however, that, except as otherwise provided herein or with respect to any Book-Entry Warrant, each
Book-Entry Warrant may be transferred only in whole and only to the Depository, 

 
to another nominee of the Depository, to a successor depository or to a nominee of a successor depository; provided, further, that in the event that a Warrant surrendered for
transfer bears a restrictive legend, the Warrant Agent shall not cancel such Warrant and issue new Warrants in exchange thereof until the Warrant Agent has received an opinion of counsel for the Company stating that such transfer may be made and
indicating whether the new Warrants must also bear a restrictive legend. 
 5.4. Transfers of Fractions of Warrants. The Warrant
Agent shall not be required to effect any registration of transfer or exchange of Warrants which would result in the issuance of a Warrant certificate or book-entry position for a fraction of a Warrant. 

5.5. Service Charges. No service charge shall be made for any exchange or registration of transfer of Warrants. 

5.6. Warrant Execution and Countersignature. The Warrant Agent is hereby authorized to countersign and to deliver, in accordance with
the terms of this Agreement, the Warrants required to be issued pursuant to the provisions of this Section 5, and the Company, whenever required by the Warrant Agent, shall supply the Warrant Agent with Warrants duly
executed on behalf of the Company for such purpose. 
 6. Other Provisions Relating to Rights of Holders of Warrants. 

6.1. No Rights as Stockholder. A Warrant does not entitle the Registered Holder thereof to any of the rights of a stockholder of the
Company, including, without limitation, the right to receive dividends, or other distributions, exercise any preemptive rights to vote or to consent or to receive notice as stockholder in respect of the meetings of shareholders or the election of
directors of the Company or any other matter. 
 6.2. Lost, Stolen, Mutilated, or Destroyed Warrants. If any Warrant is lost, stolen,
mutilated or destroyed, the Company and the Warrant Agent may on such terms as to indemnity or otherwise as they may in their discretion impose (which shall, in the case of a mutilated Warrant, include the surrender thereof), issue a new Warrant of
like denomination, tenor and date as the Warrant so lost, stolen, mutilated or destroyed. Any such new Warrant shall constitute a substitute contractual obligation of the Company, whether or not the allegedly lost, stolen, mutilated or destroyed
Warrant shall be at any time enforceable by anyone. 
 6.3. Reservation of Shares of Common Stock. The Company shall at all times
reserve and keep available a number of its authorized but unissued shares of Common Stock that shall be sufficient to permit the exercise in full of all outstanding Warrants issued pursuant to this Agreement. 

7. Concerning the Warrant Agent and Other Matters. 

7.1. Payment of Taxes. The Company shall from time to time promptly pay all taxes and charges that may be imposed upon the Company or
the Warrant Agent in respect of the issuance or delivery of shares of Common Stock upon the exercise of the Warrants, but the Company and the Warrant Agent shall not be obligated to pay any transfer taxes in respect of the Warrants or such shares of
Common Stock. 

 7.2. Resignation, Consolidation, or Merger of Warrant Agent. 

7.2.1. Appointment of Successor Warrant Agent. The Warrant Agent, or any successor to it hereafter appointed, may resign its duties
and be discharged from all further duties and liabilities hereunder after giving sixty (60) days’ notice in writing to the Company. If the office of the Warrant Agent becomes vacant by resignation or incapacity to act or otherwise, the
Company shall appoint in writing a successor Warrant Agent in place of the Warrant Agent. If the Company shall fail to make such appointment within a period of thirty (30) days after it has been notified in writing of such resignation or
incapacity by the Warrant Agent or by the holder of a Warrant (who shall, with such notice, submit his, her or its Warrant for inspection by the Company), then the holder of any Warrant may apply to the Supreme Court of the State of New York for the
County of New York for the appointment of a successor Warrant Agent at the Company’s cost. Any successor Warrant Agent, whether appointed by the Company or by such court, shall be a corporation or other entity organized and existing under the
laws of the State of New York, in good standing and having its principal office in the Borough of Manhattan, City and State of New York, and authorized under such laws to exercise corporate trust powers and subject to supervision or examination by
federal or state authority. After appointment, any successor Warrant Agent shall be vested with all the authority, powers, rights, immunities, duties, and obligations of its predecessor Warrant Agent with like effect as if originally named as
Warrant Agent hereunder, without any further act or deed; but if for any reason it becomes necessary or appropriate, the predecessor Warrant Agent shall execute and deliver, at the expense of the Company, an instrument transferring to such successor
Warrant Agent all the authority, powers, and rights of such predecessor Warrant Agent hereunder; and upon request of any successor Warrant Agent the Company shall make, execute, acknowledge, and deliver any and all instruments in writing for more
fully and effectually vesting in and confirming to such successor Warrant Agent all such authority, powers, rights, immunities, duties, and obligations. 

7.2.2. Notice of Successor Warrant Agent. In the event a successor Warrant Agent shall be appointed, the Company shall give notice
thereof to the predecessor Warrant Agent and the Transfer Agent for the shares of Common Stock not later than the effective date of any such appointment. 

7.2.3. Merger or Consolidation of Warrant Agent. Any entity into which the Warrant Agent may be merged or with which it may be
consolidated or any entity resulting from any merger or consolidation to which the Warrant Agent shall be a party shall be the successor Warrant Agent under this Agreement without any further act. 

7.3. Fees and Expenses of Warrant Agent. 

7.3.1. Remuneration. The Company agrees to pay the Warrant Agent reasonable remuneration for its services as such Warrant Agent
hereunder and shall, pursuant to its obligations under this Agreement, reimburse the Warrant Agent upon demand for all expenditures that the Warrant Agent may reasonably incur in the execution of its duties hereunder. 

 7.3.2. Further Assurances. The Company agrees to perform, execute, acknowledge, and
deliver or cause to be performed, executed, acknowledged, and delivered all such further and other acts, instruments, and assurances as may reasonably be required by the Warrant Agent for the carrying out or performing of the provisions of this
Agreement. 
 7.4. Liability of Warrant Agent. 

7.4.1. Reliance on Company Statement. Whenever in the performance of its duties under this Agreement, the Warrant Agent shall deem it
necessary or desirable that any fact or matter be proved or established by the Company prior to taking or suffering any action hereunder, such fact or matter (unless other evidence in respect thereof be herein specifically prescribed) may be deemed
to be conclusively proved and established by a statement signed by the Chairman of the Board, Chief Executive Officer, Chief Financial Officer, the President or the Secretary or other principal officer of the Company and delivered to the Warrant
Agent. The Warrant Agent may rely upon such statement for any action taken or suffered in good faith by it pursuant to the provisions of this Agreement. 

7.4.2. Indemnity. The Warrant Agent shall be liable hereunder only for its own, or its representatives’, gross negligence,
willful misconduct, fraud, bad faith or material breach of this Agreement. The Company agrees to indemnify the Warrant Agent and save it harmless against any and all liabilities, including judgments, out-of-pocket costs and reasonable outside counsel fees, for anything done or omitted by the Warrant Agent in the execution of this Agreement, except as a result of the Warrant Agent’s or its
representatives’ gross negligence, willful misconduct, fraud, bad faith or material breach of this Agreement. 
 7.4.3.
Exclusions. The Warrant Agent shall have no responsibility with respect to the validity of this Agreement or with respect to the validity or execution of any Warrant (except its countersignature thereof). The Warrant Agent shall not be
responsible for any breach by the Company of any covenant or condition contained in this Agreement or in any Warrant. The Warrant Agent shall not be responsible to make any adjustments required under the provisions of Section 4
hereof or responsible for the manner, method, or amount of any such adjustment or the ascertaining of the existence of facts that would require any such adjustment; nor shall it by any act hereunder be deemed to make any representation or warranty
as to the authorization or reservation of any shares of Common Stock to be issued pursuant to this Agreement or any Warrant or as to whether any shares of Common Stock shall, when issued, be valid and fully paid and
non-assessable. 
 7.5. Acceptance of Agency. The Warrant Agent hereby accepts the agency
established by this Agreement and agrees to perform the same upon the terms and conditions herein set forth and among other things, shall account promptly to the Company with respect to Warrants exercised and concurrently account for, and pay to the
Company, all monies received by the Warrant Agent for the purchase of shares of Common Stock through the exercise of the Warrants. 
 7.6.
Waiver. The Warrant Agent has no right of set-off or any other right, title, interest or claim of any kind (“Claim”) in, or to any distribution of, the Trust Account (as defined in that
certain Investment Management Trust Agreement, dated as of the date hereof, by and between the Company and the Warrant Agent as trustee thereunder) and hereby agrees not to seek recourse, reimbursement, payment or satisfaction for any Claim against
the Trust Account for any reason whatsoever. The Warrant Agent hereby waives any and all Claims against the Trust Account and any and all rights to seek access to the Trust Account. 

 8. Miscellaneous Provisions. 

8.1. Successors. All the covenants and provisions of this Agreement by or for the benefit of the Company or the Warrant Agent shall
bind and inure to the benefit of their respective successors and assigns. 
 8.2. Notices. Any notice, statement or demand authorized
by this Agreement to be given or made by the Warrant Agent or by the holder of any Warrant to or on the Company shall be sufficiently given when so delivered if by hand or overnight delivery or if sent by certified mail or private courier service
within five (5) days after deposit of such notice, postage prepaid, addressed (until another address is filed in writing by the Company with the Warrant Agent), as follows: 

Atlantic Coastal Acquisition Corp. II 

6 St Johns Lane 
 New York, New
York 10013 
 Attn: Shahraab Ahmad 

Email: shahraab@atlanticcoastalacquisition.com 

with a copy to (which shall not constitute notice): 

Pillsbury Winthrop Shaw Pittman LLP 

31 W 52nd Street 
 New York, New
York 10019 
 Attn: Stephen Ashley 

Email: stephen.ashley@pillsburylaw.com 

Any notice, statement or demand authorized by this Agreement to be given or made by the holder of any Warrant or by the Company to or on the
Warrant Agent shall be sufficiently given when so delivered if by hand or overnight delivery or if sent by certified mail or private courier service within five (5) days after deposit of such notice, postage prepaid, addressed (until another
address is filed in writing by the Warrant Agent with the Company), as follows: 
 Continental Stock Transfer & Trust Company 

1 State Street, 30th Floor 

New York, NY 10004 
 Attn: Stacy
Aqui 
 Email: saqui@continentalstock.com 

in each case, with a copy to: 

Pillsbury Winthrop Shaw Pittman LLP 

31 W 52nd Street 
 New York, New
York 10019 
 Attn: Stephen Ashley 

 Email: stephen.ashley@pillsburylaw.com 

and 
 Cantor
Fitzgerald & Co. 
 499 Park Avenue 

New York, New York 10022 
 Attn:
Head of Investment Banking 
 Attn: Head of SPACs 

Facsimile: (212) 829-4708 

Email: Sage.kelly@cantor.com; David.batalion@cantor.com 

and 
 Ellenoff
Grossman & Schole LLP 
 1345 Avenue of the Americas 

New York, New York 10105 
 Attn:
Stuart Neuhauser, Esq. 
 Email: sneuhauser@egsllp.com 

8.3. Applicable Law; Exclusive Forum. The validity, interpretation, and performance of this Agreement and of the Warrants shall be
governed in all respects by the laws of the State of New York, without giving effect to conflicts of law principles that would result in the application of the substantive laws of another jurisdiction. Subject to applicable law, the Company hereby
agrees that any action, proceeding or claim against it arising out of or relating in any way to this Agreement shall be brought and enforced in the courts of the State of New York or the United States District Court for the Southern District of New
York, and irrevocably submits to such jurisdiction, which jurisdiction shall be exclusive forum for any such action, proceeding or claim. The Company hereby waives any objection to such exclusive jurisdiction and that such courts represent an
inconvenient forum. Notwithstanding the foregoing, the provisions of this paragraph will not apply to suits brought to enforce any liability or duty created by the Exchange Act or any other claim for which the federal district courts of the United
States of America are the sole and exclusive forum. Any person or entity purchasing or otherwise acquiring any interest in the Warrants shall be deemed to have notice of and to have consented to the forum provisions in this
Section 8.3. If any action, the subject matter of which is within the scope of the forum provisions above, is filed in a court other than a court located within the State of New York or the United States District Court for
the Southern District of New York (a “foreign action”) in the name of any Warrant holder, such Warrant holder shall be deemed to have consented to: (x) the personal jurisdiction of the state and federal courts located within the State
of New York or the United States District Court for the Southern District of New York in connection with any action brought in any such court to enforce the forum provisions (an “enforcement action”), and (y) having service of process
made upon such Warrant holder in any such enforcement action by service upon such warrant holder’s counsel in the foreign action as agent for such warrant holder. 

8.4. Persons Having Rights under this Agreement. Nothing in this Agreement shall be construed to confer upon, or give to, any person,
corporation or other entity other than the parties hereto and the Registered Holders of the Warrants any right, remedy or claim under or by reason of this Agreement or of any covenant, condition, stipulation, promise or agreement hereof.

 
All covenants, conditions, stipulations, promises, and agreements contained in this Agreement shall be for the sole and exclusive benefit of the parties hereto and their successors and assigns
and of the Registered Holders of the Warrants. 
 8.5. Examination of the Warrant Agreement. A copy of this Agreement shall be
available at all reasonable times at the office of the Warrant Agent in the Borough of Manhattan, City and State of New York, for inspection by the Registered Holder of any Warrant. The Warrant Agent may require any such holder to submit such
holder’s Warrant for inspection by the Warrant Agent. 
 8.6. Counterparts; Electronic Signatures. This Agreement may be
executed in any number of original or facsimile counterparts and each of such counterparts shall for all purposes be deemed to be an original, and all such counterparts shall together constitute but one and the same instrument. A signature to this
Agreement transmitted electronically shall have the same authority, effect and enforceability as an original signature. 
 8.7. Effect of
Headings. The section headings herein are for convenience only and are not part of this Agreement and shall not affect the interpretation thereof. 

8.8. Amendments. This Agreement may be amended by the parties hereto without the consent of any Registered Holder for the purpose of
(i) curing any ambiguity or to correct any mistake or defective provision contained herein, including to conform the provisions hereof to the description of the terms of the Warrants and this Agreement set forth in the Prospectus,
(ii) adding or changing any provisions with respect to matters or questions arising under this Agreement as the parties may deem necessary or desirable and that the parties deem shall not adversely affect the rights of the Registered Holders or
(iii) to provide for the delivery of an Alternative Issuance pursuant to Section 4.4 hereof. All other modifications or amendments, including any modification or amendment to increase the Warrant Price or shorten the Exercise Period, shall
require the vote or written consent of the Registered Holders of fifty percent (50%) of the then outstanding Warrants. Notwithstanding the foregoing, the Company may lower the Warrant Price or extend the duration of the Exercise Period pursuant to
Sections 3.1 and 3.2 hereof, respectively, without the consent of the Registered Holders. The Company covenants and agrees to not lower the Warrant Price or extend the duration of the Exercise Period of the Warrants without taking the
same actions with respect to the Public Warrants. 
 8.9. Severability. This Agreement shall be deemed severable, and the invalidity
or unenforceability of any term or provision hereof shall not affect the validity or enforceability of this Agreement or of any other term or provision hereof. Furthermore, in lieu of any such invalid or unenforceable term or provision, the parties
hereto intend that there shall be added as a part of this Agreement a provision as similar in terms to such invalid or unenforceable provision as may be possible and be valid and enforceable. 

 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed as of
the date first above written. 
  

			
	ATLANTIC COASTAL ACQUISITION CORP. II
		
	By:	 	 /s/ Shahraab Ahmad

	Name:	 	Shahraab Ahmad
	Title:	 	Chief Executive Officer
	
	CONTINENTAL STOCK TRANSFER & TRUST COMPANY, as Warrant Agent
		
	By:	 	 /s/ Stacy Aqui

	Name:	 	Stacy Aqui
	Title:	 	Vice President

 [Signature Page to Warrant Agreement] 

 EXHIBIT A 

LEGEND 
 “THE SECURITIES REPRESENTED
BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAWS, AND MAY NOT BE OFFERED, SOLD, TRANSFERRED OR OTHERWISE DISPOSED OF UNLESS REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, AND ANY APPLICABLE STATE SECURITIES LAWS OR AN EXEMPTION FROM REGISTRATION IS AVAILABLE. IN ADDITION, SUBJECT TO ANY ADDITIONAL LIMITATIONS ON TRANSFER DESCRIBED IN THE LETTER AGREEMENT BY AND AMONG ATLANTIC COASTAL ACQUISITION CORP. II
(THE “COMPANY”), ATLANTIC COASTAL ACQUISITION MANAGEMENT II LLC AND THE OTHER PARTIES THERETO, THE SECURITIES REPRESENTED BY THIS CERTIFICATE MAY NOT BE SOLD OR TRANSFERRED PRIOR TO THE DATE THAT IS THIRTY (30) DAYS AFTER THE DATE
UPON WHICH THE COMPANY COMPLETES ITS INITIAL BUSINESS COMBINATION (AS DEFINED IN SECTION 3 OF THE WARRANT AGREEMENT REFERRED TO HEREIN) EXCEPT TO A PERMITTED TRANSFEREE (AS DEFINED IN SECTION 5 OF THE WARRANT AGREEMENT) WHO AGREES IN WRITING WITH
THE COMPANY TO BE SUBJECT TO SUCH TRANSFER PROVISIONS. 
 SECURITIES EVIDENCED BY THIS CERTIFICATE AND SHARES OF COMMON STOCK OF THE COMPANY ISSUED UPON
EXERCISE OF SUCH SECURITIES SHALL BE ENTITLED TO REGISTRATION RIGHTS UNDER A REGISTRATION RIGHTS AGREEMENT TO BE EXECUTED BY THE COMPANY.” 

 EXHIBIT B 

[Form of Warrant Certificate] 

[FACE] 
 Number [__] 

Warrants 
 THIS WARRANT
SHALL BE NULL AND VOID IF NOT EXERCISED PRIOR 
 TO THE EXPIRATION OF THE EXERCISE PERIOD PROVIDED FOR 

IN THE WARRANT AGREEMENT DESCRIBED BELOW 

ATLANTIC COASTAL ACQUISITION CORP. II 

Incorporated Under the Laws of the State of Delaware 

CUSIP [__] 
 Warrant Certificate 

This Warrant Certificate certifies that , or registered assigns, is the registered holder of warrant(s) evidenced hereby (the
“Warrants” and each, a “Warrant”) to purchase shares of Series A common stock, $0.0001 par value per share (“Common Stock”), of Atlantic Coastal Acquisition Corp. II, a Delaware
corporation (the “Company”). Each whole Warrant entitles the holder, upon exercise during the period set forth in the Warrant Agreement referred to below, to receive from the Company that number of fully paid and non-assessable shares of Common Stock as set forth below, at the exercise price (the “Warrant Price”) as determined pursuant to the Warrant Agreement, payable in lawful money of the United
States of America upon surrender of this Warrant Certificate and payment of the Warrant Price (or through “cashless exercise” as provided for in the Warrant Agreement) at the office or agency of the Warrant Agent referred to
below, subject to the conditions set forth herein and in the Warrant Agreement. Defined terms used in this Warrant Certificate but not defined herein shall have the meanings given to them in the Warrant Agreement. 

Each whole Warrant is initially exercisable for one fully paid and non-assessable share of Common
Stock. No fractional shares will be issued upon exercise of any Warrant. If, upon the exercise of Warrants, a holder would be entitled to receive a fractional interest in a share of Common Stock, the Company will, upon exercise, round down to the
nearest whole number of the number of shares of Common Stock to be issued to the holder of the Warrant. The number of shares of Common Stock issuable upon exercise of the Warrants is subject to adjustment upon the occurrence of certain events as set
forth in the Warrant Agreement. 
 The initial Warrant Price per share of Common Stock for any Warrant is equal to $11.50 per share. The
Warrant Price is subject to adjustment upon the occurrence of certain events as set forth in the Warrant Agreement. 
 Subject to the
conditions set forth in the Warrant Agreement, the Warrants may be exercised only during the Exercise Period and to the extent not exercised by the end of such Exercise Period, such Warrants shall become null and void. 

 Reference is hereby made to the further provisions of this Warrant Certificate set forth on
the reverse hereof and such further provisions shall for all purposes have the same effect as though fully set forth at this place. 
 This
Warrant Certificate shall not be valid unless countersigned by the Warrant Agent, as such term is used in the Warrant Agreement. 
 This
Warrant Certificate shall be governed by and construed in accordance with the internal laws of the State of New York, without regard to conflicts of laws principles thereof. 

 

					
	ATLANTIC COASTAL ACQUISITION CORP. II
		
	By:	 	          

		 	Name:	 	Shahraab Ahmad
		 	Title:	 	Chief Executive Officer
	
	CONTINENTAL STOCK TRANSFER & TRUST COMPANY, as Warrant Agent
		
	By:	 	          

		 	Name:	 	
		 	Title:	 	

 [Form of Warrant Certificate] 

[Reverse] 
 The Warrants evidenced
by this Warrant Certificate are part of a duly authorized issue of Warrants entitling the holder on exercise to receive shares of Common Stock and are issued or to be issued pursuant to a Warrant Agreement dated as of [__], 20[__] (the
“Warrant Agreement”), duly executed and delivered by the Company to Continental Stock Transfer & Trust Company, a New York limited purpose trust company, as warrant agent (or successor warrant agent) (collectively,
the “Warrant Agent”), which Warrant Agreement is hereby incorporated by reference in and made a part of this instrument and is hereby referred to for a description of the rights, limitation of rights, obligations, duties and
immunities thereunder of the Warrant Agent, the Company and the holders (the words “holders” or “holder” meaning the Registered Holders or Registered Holder, respectively) of the Warrants. A copy of
the Warrant Agreement may be obtained by the holder hereof upon written request to the Company. Defined terms used in this Warrant Certificate but not defined herein shall have the meanings given to them in the Warrant Agreement. 

Warrants may be exercised at any time during the Exercise Period set forth in the Warrant Agreement. The holder of Warrants evidenced by this
Warrant Certificate may exercise them by surrendering this Warrant Certificate, with the form of election to purchase set forth hereon properly completed and executed, together with payment of the Warrant Price as specified in the Warrant Agreement
(or through “cashless exercise” as provided for in the Warrant Agreement) at the principal corporate trust office of the Warrant Agent. In the event that upon any exercise of Warrants evidenced hereby the number of Warrants
exercised shall be less than the total number of Warrants evidenced hereby, there shall be issued to the holder hereof or his, her or its assignee, a new Warrant Certificate evidencing the number of Warrants not exercised. 

Notwithstanding anything else in this Warrant Certificate or the Warrant Agreement, no Warrant may be exercised unless at the time of exercise
(i) a registration statement covering the shares of Common Stock to be issued upon exercise is effective under the Securities Act and (ii) a prospectus thereunder relating to the shares of Common Stock is current, except through
“cashless exercise” as provided for in the Warrant Agreement. 
 The Warrant Agreement provides that upon the occurrence of
certain events the number of shares of Common Stock issuable upon exercise of the Warrants and the Warrant Price set forth on the face hereof may, subject to certain conditions, be adjusted. If, upon exercise of a Warrant, the holder thereof would
be entitled to receive a fractional interest in Common Stock, the Company shall, upon exercise, round down to the nearest whole number of shares of Common Stock to be issued to the holder of the Warrant. 

This Warrant Certificate, when surrendered at the principal corporate trust office of the Warrant Agent by the Registered Holder thereof in
person or by legal representative or attorney duly authorized in writing, may be exchanged, in the manner and subject to the limitations provided in the Warrant Agreement, but without payment of any service charge, for another Warrant Certificate or
Warrant Certificates of like tenor evidencing in the aggregate a like number of Warrants. 

 Upon due presentation for registration of transfer of this Warrant Certificate at the office
of the Warrant Agent a new Warrant Certificate or Warrant Certificates of like tenor and evidencing in the aggregate a like number of Warrants shall be issued to the transferee(s) in exchange for this Warrant Certificate, subject to the limitations
provided in the Warrant Agreement, without charge except for any tax or other governmental charge imposed in connection therewith. 
 The
Company and the Warrant Agent may deem and treat the Registered Holder(s) hereof as the absolute owner(s) of this Warrant Certificate (notwithstanding any notation of ownership or other writing hereon made by anyone), for the purpose of any exercise
hereof, of any distribution to the holder(s) hereof, and for all other purposes, and neither the Company nor the Warrant Agent shall be affected by any notice to the contrary. Neither the Warrants nor this Warrant Certificate entitles any holder
hereof to any rights of a stockholder of the Company. 

 Election to Purchase 

(To Be Executed Upon Exercise of Warrant) 

The undersigned hereby irrevocably elects to exercise the right, represented by this Warrant Certificate, to receive shares of Common Stock
and herewith tenders payment for such shares of Common Stock to the order of Atlantic Coastal Acquisition Corp. II (the “Company”) in the amount of
$                     in accordance with the terms hereof. The undersigned requests that a certificate for such shares of Common Stock be registered
in the name of                     , whose address is and that such shares of Common Stock be delivered to whose address
is                    . If said number of shares of Common Stock is less than all of the shares of Common Stock purchasable hereunder, the
undersigned requests that a new Warrant Certificate representing the remaining balance of such shares of Common Stock be registered in the name of
                    , whose address is
                    and that such Warrant Certificate be delivered
to                    , whose address
is                    . 
 In
the event that the Warrant is to be exercised on a “cashless” basis pursuant to Section 3.3.1(b) of the Warrant Agreement, the number of shares of Common Stock that this Warrant is exercisable for shall be
determined in accordance with 3.3.1(b) of the Warrant Agreement. 
 In the event that the Warrant may be exercised, to the extent
allowed by the Warrant Agreement, through cashless exercise (i) the number of shares of Common Stock that this Warrant is exercisable for would be determined in accordance with the relevant section of the Warrant Agreement which allows for such
cashless exercise and (ii) the holder hereof shall complete the following: The undersigned hereby irrevocably elects to exercise the right, represented by this Warrant Certificate, through the cashless exercise provisions of the Warrant
Agreement, to receive shares of Common Stock. If said number of shares of Common Stock is less than all of the shares of Common Stock purchasable hereunder (after giving effect to the cashless exercise), the undersigned requests that a new Warrant
Certificate representing the remaining balance of such shares of Common Stock be registered in the name of                     , whose address is
                     and that such Warrant Certificate be delivered to
                    , whose address
is                    . 
 [Signature
Page follows] 

 Date: __, 20[ ] 

 

	
	  
 (Signature)

	
	  

	 (Address)
  

	  
 (Tax Identification
Number)

 Signature Guaranteed: 

THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT
UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO SECURITIES AND EXCHANGE COMMISSION RULE 17Ad-15 (OR ANY SUCCESSOR RULE) UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED).

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