Document:

Exhibit 10.1

 

THIS PROMISSORY NOTE (“NOTE”) HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES
ACT”). THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF REGISTRATION
OF THE RESALE THEREOF UNDER THE SECURITIES ACT OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY IN FORM, SCOPE AND SUBSTANCE TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED.  

 

PROMISSORY NOTE

 

	Principal Amount:  Up to $250,000	Effective Date:  October
    4, 2022
		

 

Biotech Acquisition Company, a Cayman Islands
exempted company (the “Maker”), promises to pay to the order of Biotech Sponsor LLC, a Delaware limited liability company,
or its registered assigns or successors in interest (the “Payee”),
or order, the principal sum of up to Two Hundred Fifty Thousand Dollars ($250,000) in lawful money of the United States of America, on
the terms and conditions described below.  All payments on this Note shall be made by check or wire transfer of immediately
available funds or as otherwise determined by the Maker to such account as the Payee may from time to time designate by written notice
in accordance with the provisions of this Note.

 

1. Principal. The
principal balance of this Note shall be payable by the Maker on the earlier of: (i) September 30, 2023 or (ii) the date on which Maker
consummates an initial business combination, including without limitation a merger, share exchange, asset acquisition, share purchase,
reorganization or similar business combination involving the Maker and one or more businesses (herein, a “Business Combination”). The
principal balance may be prepaid at any time. Under no circumstances shall any individual, including but not limited to any officer, director,
employee or shareholder of the Maker, be obligated personally for any obligations or liabilities of the Maker hereunder.

 

2. Interest. No
interest shall accrue on the unpaid principal balance of this Note.

 

3. Drawdown Requests. Maker
and Payee agree that Maker may request up to Two Hundred Fifty Thousand Dollars ($250,000) for working capital and general corporate purposes,
including, but not limited to, in connection with a potential Business Combination. The principal of this Note may be drawn down from
time to time prior to the earlier of: (i) September 30, 2023 or (ii) the date on which Maker consummates a Business Combination, upon
written request from Maker to Payee (each, a “Drawdown Request”). Each Drawdown Request must state the amount to be
drawn down, and must not be an amount less than Ten Thousand Dollars ($10,000) unless agreed upon by Maker and Payee. Payee shall fund
each Drawdown Request no later than five (5) business days after receipt of a Drawdown Request; provided, however, that the maximum amount
of drawdowns collectively under this Note is Two Hundred Fifty Thousand Dollars ($250,000). Once an amount is drawn down under this Note,
it shall not be available for future Drawdown Requests even if prepaid. No fees, payments or other amounts shall be due to Payee in connection
with, or as a result of, any Drawdown Request by Maker. Notwithstanding the foregoing, all payments shall be applied first to payment
in full of any costs incurred in the collection of any sum due under this Note, including (without limitation) reasonable attorneys’
fees, and then to the reduction of the unpaid principal balance of this Note. Notwithstanding the foregoing, if the Payee fails to honor
its obligation under this Note to advance funds to Maker upon Maker’s Drawdown Request, as liquidated damages and not as a penalty,
Payee shall forfeit all funds previously advanced to Maker under this Note and shall have no further right to repayment hereunder.

 

4. Application
of Payments. All payments shall be applied first to payment in full of any costs incurred in the collection of any sum due under
this Note, including (without limitation) reasonable attorney’s fees, then to the payment in full of any late charges and finally
to the reduction of the unpaid principal balance of this Note.

 

5. Events of
Default. The following shall constitute an event of default (“Event of Default”):

 

(a) Failure
to Make Required Payments. Failure by Maker to pay the principal amount due pursuant to this Note within five (5) business days of
the date specified above.

 

(b) Voluntary
Bankruptcy, Etc. The commencement by Maker of a voluntary case under any applicable bankruptcy, insolvency, reorganization, rehabilitation
or other similar law, or the consent by it to the appointment of or taking possession by a receiver, liquidator, assignee, trustee, custodian,
sequestrator (or other similar official) of Maker or for any substantial part of its property, or the making by it of any assignment for
the benefit of creditors, or the failure of Maker generally to pay its debts as such debts become due, or the taking of corporate action
by Maker in furtherance of any of the foregoing.

  

(c) Involuntary
Bankruptcy, Etc. The entry of a decree or order for relief by a court having jurisdiction in the premises in respect of Maker in an
involuntary case under any applicable bankruptcy, insolvency or other similar law, or appointing a receiver, liquidator, assignee, custodian,
trustee, sequestrator (or similar official) of Maker or for any substantial part of its property, or ordering the winding-up or liquidation
of its affairs, and the continuance of any such decree or order unstayed and in effect for a period of 60 consecutive days.

 

     

     

    

  

6. Remedies.

 

(a) Upon
the occurrence of an Event of Default specified in Section 5(a) hereof, Payee may, by written notice to Maker, declare this Note to be
due immediately and payable, whereupon the unpaid principal amount of this Note, and all other amounts payable hereunder, shall become
immediately due and payable without presentment, demand, protest or other notice of any kind, all of which are hereby expressly waived,
anything contained herein or in the documents evidencing the same to the contrary notwithstanding. 

 

(b) Upon
the occurrence of an Event of Default specified in Sections 5(b) and 5(c), the unpaid principal balance of this Note, and all other sums
payable with regard to this Note, shall automatically and immediately become due and payable, in all cases without any action on the part
of Payee.

 

7. Waivers. Maker
and all endorsers and guarantors of, and sureties for, this Note waive presentment for payment, demand, notice of dishonor, protest, and
notice of protest with regard to the Note, all errors, defects and imperfections in any proceedings instituted by Payee under the terms
of this Note, and all benefits that might accrue to Maker by virtue of any present or future laws exempting any property, real or personal,
or any part of the proceeds arising from any sale of any such property, from attachment, levy or sale under execution, or providing for
any stay of execution, exemption from civil process, or extension of time for payment; and Maker agrees that any real estate that may
be levied upon pursuant to a judgment obtained by virtue hereof or any writ of execution issued hereon, may be sold upon any such writ
in whole or in part in any order desired by Payee.

 

8. Unconditional
Liability. Maker hereby waives all notices in connection with the delivery, acceptance, performance, default, or enforcement
of the payment of this Note, and agrees that its liability shall be unconditional, without regard to the liability of any other party,
and shall not be affected in any manner by any indulgence, extension of time, renewal, waiver or modification granted or consented to
by Payee, and consents to any and all extensions of time, renewals, waivers, or modifications that may be granted by Payee with respect
to the payment or other provisions of this Note, and agrees that additional makers, endorsers, guarantors, or sureties may become parties
hereto without notice to Maker or affecting Maker’s liability hereunder.

 

9. Notices. All
notices, statements or other documents which are required or contemplated by this Note shall be made in writing and delivered: (i) personally
or sent by first class registered or certified mail, overnight courier service or facsimile or electronic transmission to the address
designated in writing, (ii) by facsimile to the number most recently provided to such party or such other address or fax number as may
be designated in writing by such party or (iii) by electronic mail, to the electronic mail address most recently provided to such party
or such other electronic mail address as may be designated in writing by such party. Any notice or other communication so transmitted
shall be deemed to have been given on the day of delivery, if delivered personally, on the business day following receipt of written confirmation,
if sent by facsimile or electronic transmission, one (1) business day after delivery to an overnight courier service or five (5) days
after mailing if sent by mail.

 

10. Construction. THIS
NOTE SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF DELAWARE, WITHOUT REGARD TO CONFLICT OF LAW PROVISIONS
THEREOF.

 

11. Severability. Any
provision contained in this Note which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction.

   

12. Trust Waiver.  Notwithstanding
anything herein to the contrary, the Payee hereby waives any and all right, title, interest or claim of any kind (“Claim”)
in or to any distribution of or from the trust account to be established in which the proceeds of the initial public offering (the “IPO”)
conducted by the Maker (including the deferred underwriters discounts and commissions) and the proceeds of the sale of the warrants issued
in a private placement on or to prior to the closing of the IPO deposited, as described in greater detail in the Maker’s registration
statement and prospectus filed with the Securities and Exchange Commission in connection with the IPO, and hereby agrees not to seek recourse,
reimbursement, payment or satisfaction for any Claim against the trust account for any reason whatsoever.

 

13. Amendment;
Waiver. Any amendment hereto or waiver of any provision hereof may be made with, and only with, the written consent of the Maker
and the Payee.

 

14. Assignment. No
assignment or transfer of this Note or any rights or obligations hereunder may be made by any party hereto (by operation of law or otherwise)
without the prior written consent of the other party hereto and any attempted assignment without the required consent shall be void.

 

    2

     

    

 

IN WITNESS WHEREOF,
Maker, intending to be legally bound hereby, has caused this Note to be duly executed by the undersigned as of the day and year first
above written.

 

	 	Biotech Acquisition
    Company
	 	 	 
	 	By:	/s/ Albert
    F. Hummel
	 	 	Name: 
    	Albert
    F. Hummel
	 	 	Title: 	Director

 

 

3Exhibit 10.2

 

THIS PROMISSORY NOTE (“NOTE”) HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES
ACT”). THIS NOTE HAS BEEN ACQUIRED FOR INVESTMENT ONLY AND MAY NOT BE SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF REGISTRATION
OF THE RESALE THEREOF UNDER THE SECURITIES ACT OR AN OPINION OF COUNSEL REASONABLY SATISFACTORY IN FORM, SCOPE AND SUBSTANCE TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED.  

 

PROMISSORY NOTE

 

	Principal
    Amount:  Up to $500,000	Effective
    Date:  October 4, 2022

 

Biotech Acquisition Company, a Cayman Islands
exempted company (the “Maker”), promises to pay to the order of Cryfield Investments Ltd, a United Kingdom company,
or its registered assigns or successors in interest (the “Payee”),
or order, the principal sum of up to Five Hundred Thousand Dollars ($500,000) in lawful money of the United States of America, on the
terms and conditions described below.  All payments on this Note shall be made by check or wire transfer of immediately available
funds or as otherwise determined by the Maker to such account as the Payee may from time to time designate by written notice in accordance
with the provisions of this Note.

 

1. Principal. An
amount equal to two hundred percent (200%) of the outstanding principal balance of this Note shall be payable by the Maker on the earlier
of: (i) September 30, 2023 or (ii) the date on which Maker consummates an initial business combination, including without limitation a
merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination involving the Maker and one
or more businesses (herein, a “Business Combination”). The principal balance may be prepaid at any time. Under
no circumstances shall Biotech Sponsor, LLC (“Sponsor”) or any individual, including but not limited to any officer,
director, employee or shareholder of the Maker (“Maker Representatives”) or any of Sponsor’s officers, directors,
managers, employees or members (“Sponsor Representatives”), be obligated personally for any obligations or liabilities
of the Maker hereunder.

 

2. Interest. No
interest shall accrue on the unpaid principal balance of this Note.

 

3. Drawdown Requests. Maker
and Payee agree that Maker may request up to Five Hundred Thousand Dollars ($500,000) for working capital and general corporate purposes,
including, but not limited to, in connection with a potential Business Combination. The principal of this Note may be drawn down pursuant
to a drawdown request (a “Drawdown Request”) at any time prior to September 30, 2023 as follows: (i) in the amount
of Sixty Six Thousand Dollars ($66,000) upon issuance of this Note (the "Initial Drawdown”), provided, however, that
no Drawdown Request will be required in connection with the Initial Drawdown; (ii) in the amount of One Hundred Eighty Four Thousand Dollars
($184,000) upon the signing of a business combination agreement (the “BCA”), if any, by Maker and a potential target
(the “Signing”) and (iii) in the amount of Two Hundred Fifty Thousand Dollars ($250,000) in the event Maker files an
initial draft S-4 registration statement (“Initial Draft S-4”) with the Securities and Exchange Commission (the “SEC”)
in connection with the signed BCA, if at all, upon receipt of SEC comments (“SEC Comments”) to the Initial Draft S-4.
Payee shall fund the Initial Drawdown immediately upon issuance of this Note to Payee. The Payee shall fund the Signing Drawdown Request
and the SEC Comments Drawdown Request, as the case may be, no later than five (5) business days after receipt of (i) the applicable Drawdown
Request and (ii) wire evidence that the certain promissory note made by Maker dated the date hereof to the order of Sponsor has been paid
to Maker in an amount at least equal to 50% of the amount of the Drawdown Request hereunder; provided, however, that the maximum amount
of drawdowns collectively under this Note is Five Hundred Thousand Dollars ($500,000). Once an amount is drawn down under this Note, it
shall not be available for future Drawdown Requests even if prepaid. Notwithstanding the foregoing, all payments shall be applied first
to payment in full of any costs incurred in the collection of any sum due under this Note, including (without limitation) reasonable attorneys’
fees, and then to the reduction of the unpaid principal balance of this Note.

 

4. Optional Additional
Advances by Payee. Payee, at its option, may advance to the Maker up to an additional $250,000 in the aggregate (the “Optional
Cryfield Advances”) as may be necessary to fund Maker’s working capital and general corporate purposes, including,
but not limited to, in connection with a potential Business Combination. . Any and all such Optional Cryfield Advances shall be added
to the outstanding principal balance secured and covered by the Maker’s obligations under this Note, including without limitation
the obligation to pay the amounts set forth under Item 1 above.

 

     

     

    

 

5. Application
of Payments. All payments shall be applied first to payment in full of any costs incurred in the collection of any sum due under
this Note, including (without limitation) reasonable attorney’s fees, then to the payment in full of any late charges and finally
to the reduction of the unpaid principal balance of this Note.

 

6. Events of
Default. The following shall constitute an event of default (“Event of Default”):

 

(a) Failure
to Make Required Payments. Failure by Maker to pay the outstanding principal amounts due pursuant to this Note within five (5) business
days of the date specified above.

 

(b) Voluntary
Bankruptcy, Etc. The commencement by Maker of a voluntary case under any applicable bankruptcy, insolvency, reorganization, rehabilitation
or other similar law, or the consent by it to the appointment of or taking possession by a receiver, liquidator, assignee, trustee, custodian,
sequestrator (or other similar official) of Maker or for any substantial part of its property, or the making by it of any assignment for
the benefit of creditors, or the failure of Maker generally to pay its debts as such debts become due, or the taking of corporate action
by Maker in furtherance of any of the foregoing.

  

(c) Involuntary
Bankruptcy, Etc. The entry of a decree or order for relief by a court having jurisdiction in the premises in respect of Maker in an
involuntary case under any applicable bankruptcy, insolvency or other similar law, or appointing a receiver, liquidator, assignee, custodian,
trustee, sequestrator (or similar official) of Maker or for any substantial part of its property, or ordering the winding-up or liquidation
of its affairs, and the continuance of any such decree or order unstayed and in effect for a period of 60 consecutive days.

  

7. Remedies.

 

(a) Upon
the occurrence of an Event of Default specified in Section 6(a) hereof, Payee may, by written notice to Maker, declare this Note to be
due immediately and payable, whereupon the unpaid principal amount of this Note, and all other amounts payable hereunder, shall become
immediately due and payable without presentment, demand, protest or other notice of any kind, all of which are hereby expressly waived,
anything contained herein or in the documents evidencing the same to the contrary notwithstanding. 

 

(b) Upon
the occurrence of an Event of Default specified in Sections 6(b) and 6(c), the unpaid principal balance of this Note, and all other sums
payable with regard to this Note, shall automatically and immediately become due and payable, in all cases without any action on the part
of Payee.

 

8. Waivers. Maker
and all endorsers and guarantors of, and sureties for, this Note waive presentment for payment, demand, notice of dishonor, protest, and
notice of protest with regard to the Note, all errors, defects and imperfections in any proceedings instituted by Payee under the terms
of this Note, and all benefits that might accrue to Maker by virtue of any present or future laws exempting any property, real or personal,
or any part of the proceeds arising from any sale of any such property, from attachment, levy or sale under execution, or providing for
any stay of execution, exemption from civil process, or extension of time for payment; and Maker agrees that any real estate that may
be levied upon pursuant to a judgment obtained by virtue hereof or any writ of execution issued hereon, may be sold upon any such writ
in whole or in part in any order desired by Payee.

 

9. Unconditional
Liability. Maker hereby waives all notices in connection with the delivery, acceptance, performance, default, or enforcement
of the payment of this Note, and agrees that its liability shall be unconditional, without regard to the liability of any other party,
and shall not be affected in any manner by any indulgence, extension of time, renewal, waiver or modification granted or consented to
by Payee, and consents to any and all extensions of time, renewals, waivers, or modifications that may be granted by Payee with respect
to the payment or other provisions of this Note, and agrees that additional makers, endorsers, guarantors, or sureties may become parties
hereto without notice to Maker or affecting Maker’s liability hereunder.

 

    2

     

    

 

10. Notices. All
notices, statements or other documents which are required or contemplated by this Note shall be made in writing and delivered: (i) personally
or sent by first class registered or certified mail, overnight courier service or facsimile or electronic transmission to the address
designated in writing, (ii) by facsimile to the number most recently provided to such party or such other address or fax number as may
be designated in writing by such party or (iii) by electronic mail, to the electronic mail address most recently provided to such party
or such other electronic mail address as may be designated in writing by such party. Any notice or other communication so transmitted
shall be deemed to have been given on the day of delivery, if delivered personally, on the business day following receipt of written confirmation,
if sent by facsimile or electronic transmission, one (1) business day after delivery to an overnight courier service or five (5) days
after mailing if sent by mail.

 

11. Construction. THIS
NOTE SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF DELAWARE, WITHOUT REGARD TO CONFLICT OF LAW PROVISIONS
THEREOF.

 

12. Severability. Any
provision contained in this Note which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective
to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction.  

 

14. Trust Waiver;
Waivers against Maker Representatives and Sponsor Representatives.  Notwithstanding anything herein to the contrary, the
Payee hereby waives any and all right, title, interest or claim of any kind (“Claim”) in or to any distribution of
or from the trust account to be established in which the proceeds of the initial public offering (the “IPO”) conducted
by the Maker (including the deferred underwriters discounts and commissions) and the proceeds of the sale of the warrants issued in a
private placement on or to prior to the closing of the IPO deposited, as described in greater detail in the Maker’s registration
statement and prospectus filed with the Securities and Exchange Commission in connection with the IPO, and hereby agrees not to seek recourse,
reimbursement, payment or satisfaction for any Claim against the trust account for any reason whatsoever. Notwithstanding anything herein
to the contrary, except for fraud and willful misconduct, the Payee hereby waives any and all Claims against Sponsor, any Maker Representatives
and any Sponsor Representatives and hereby agrees not to seek recourse, reimbursement, payment of satisfaction for any Claim against Sponsor,
the Maker Representatives and the Sponsor Representatives..

 

14. Amendment;
Waiver. Any amendment hereto or waiver of any provision hereof may be made with, and only with, the written consent of the Maker
and the Payee.

 

15. Assignment. No
assignment or transfer of this Note or any rights or obligations hereunder may be made by any party hereto (by operation of law or otherwise)
without the prior written consent of the other party hereto and any attempted assignment without the required consent shall be void.

 

    3

     

    

 

IN WITNESS WHEREOF,
Maker, intending to be legally bound hereby, has caused this Note to be duly executed by the undersigned as of the day and year first
above written.

 

	 	Biotech Acquisition Company
	 	 	 
	 	By:	/s/ Albert F. Hummel
	 	 	Name:  	Albert F. Hummel
	 	 	Title: 	Director

 

 

4

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