Exhibit 4.5


 


(FACE OF SECURITY)


 




GLOBAL
SECURITY (NOTE NO. 1) FOR MicroSectorsTM OIL & GAS EXPLORATION & PRODUCTION -3X Inverse Leveraged ETNs due JUNE 28,
2041 



 


This Security will not constitute a deposit that
is insured under the Canada Deposit Insurance Corporation act or by the U.S. Federal Deposit Insurance Corporation.


 


THIS SECURITY IS A GLOBAL SECURITY WITHIN THE
MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE THEREOF. THIS SECURITY MAY
NOT BE EXCHANGED IN WHOLE OR IN PART FOR A SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY BE REGISTERED,
IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.



 


UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO BANK OF MONTREAL, OR ITS AGENT FOR
REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH
OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY
AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY
PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 


 


BY PURCHASING THIS SECURITY, THE HOLDER AGREES
TO CHARACTERIZE THIS SECURITY FOR ALL U.S. FEDERAL INCOME TAX PURPOSES AS PROVIDED IN SECTION 7 ON THE FACE OF THIS SECURITY. 


 


THE PERSON MAKING THE DECISION TO ACQUIRE THIS
SECURITY SHALL BE DEEMED, ON BEHALF OF ITSELF AND THE HOLDER, BY ACQUIRING AND HOLDING THIS SECURITY OR EXERCISING ANY RIGHTS RELATED
THERETO, TO REPRESENT THAT: 


 


		(i)	THE FUNDS THAT THE HOLDER IS USING TO ACQUIRE THIS SECURITY ARE NOT THE ASSETS OF AN EMPLOYEE BENEFIT PLAN SUBJECT TO TITLE I OF
THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”), A PLAN DESCRIBED IN AND SUBJECT TO SECTION 4975
OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”), A GOVERNMENTAL PLAN SUBJECT TO ANY FEDERAL, STATE OR LOCAL
LAW THAT IS SIMILAR TO THE PROVISIONS OF SECTION 406 OF ERISA OR SECTION 4975 OF THE CODE, OR AN ENTITY WHOSE UNDERLYING ASSETS INCLUDE
“PLAN ASSETS” BY REASON OF DEPARTMENT OF LABOR REGULATION SECTION 2510.3-101, AS MODIFIED BY SECTION 3(42) OF ERISA, OR OTHERWISE;
OR 



 



    	 	 	 



    	 



    




 


		(ii)	(A) NEITHER THE PURCHASE, HOLDING OR DISPOSITION OF THIS SECURITY OR THE EXERCISE OF ANY RIGHTS RELATED TO THIS SECURITY WILL RESULT
IN A NON-EXEMPT PROHIBITED TRANSACTION UNDER ERISA OR THE CODE (OR WITH RESPECT TO A GOVERNMENTAL PLAN, UNDER ANY SIMILAR APPLICABLE LAW
OR REGULATION); AND (B) NEITHER BANK OF MONTREAL NOR ANY OF ITS AFFILIATES IS A “FIDUCIARY” (WITHIN THE MEANING OF SECTION
3(21) OF ERISA OR, WITH RESPECT TO A GOVERNMENTAL PLAN, UNDER ANY SIMILAR APPLICABLE LAW OR REGULATION) WITH RESPECT TO THE PURCHASER
OR HOLDER IN CONNECTION WITH SUCH PERSON’S ACQUISITION, DISPOSITION OR HOLDING OF THIS SECURITY, OR AS A RESULT OF ANY EXERCISE
BY BANK OF MONTREAL OR ANY OF ITS AFFILIATES OF ANY RIGHTS IN CONNECTION WITH THIS SECURITY, AND NO ADVICE PROVIDED BY BANK OF MONTREAL
OR ANY OF ITS AFFILIATES HAS FORMED A PRIMARY BASIS FOR ANY INVESTMENT DECISION BY OR ON BEHALF OF SUCH PURCHASER OR HOLDER IN CONNECTION
WITH THIS SECURITY AND THE TRANSACTIONS CONTEMPLATED WITH RESPECT TO THIS SECURITY. 



 


(Face of Security continued on next page)


 



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CUSIP No.: 063679575



 


ISIN: US0636795835


 


bank
of MONTREAL 


 


MEDIUM-TERM NOTES, SERIES G


 


	
    MicroSectorsTM Oil & Gas Exploration
& Production -3X Inverse Leveraged ETNs due June 28, 2041


 


(Note No. 1) 



 


The following terms apply to this Security. Capitalized
terms that are not defined the first time they are used in this Security shall have the meanings indicated elsewhere in this Security.


 


Principal Amount: $25 per Security; the
initial aggregate Principal Amount of this Security is equal to $4,000,000 (160,000 Securities). The aggregate Principal Amount may be
increased or decreased as set forth herein.


 


Index: MicroSectorsTM Oil &
Gas Exploration & Production Index


 


Initial Index Level: ______, the closing
level of the Index on the Initial Trade Date 


 


Initial Trade Date: November 8, 2021


 


Denomination: $25 per Security


 


Interest Rate: The principal of this Security
shall not bear interest.


 


Payment at Maturity:  The holder of each
$25 Principal Amount of this Security shall receive a cash payment on the Maturity Date (the “Cash Settlement Amount”)
that shall be equal to the arithmetic mean of the closing Indicative Note Values on each Index
Business Day in the Final Measurement Period. The Cash Settlement Amount shall not be less than $0.


 


Payment Upon Redemption by the Holder: 
Prior to the Maturity Date, the Holder may, subject to the procedural requirements in Section 5 hereof, elect to offer all or a portion
of the Principal Amount of this Security for repurchase by the Bank on any Redemption Date, subject to the repurchase requirements and
procedures set forth in Section 5 hereof. If the Holder fulfills the repurchase requirements and procedures in Section 5 for a Redemption
Date, the Bank shall be obligated to repurchase the Principal Amount of this Security so requested to be repurchased on the Redemption
Date. The Index Business Day immediately succeeding the applicable Redemption Notice Date shall be the Redemption Measurement Date applicable
to such repurchase, subject to adjustment as provided in Section 3 hereof. On the Redemption Date, the Holder will receive the Redemption
Amount.


 


Payment Upon Call by the Bank: The Bank
will have the right to repurchase this Security in whole or in part on any Index Business Day to and including the Maturity Date. To call
the Securities for repurchase, the Bank will deliver an irrevocable call notice to The Depository Trust Company (“DTC”)
(as the Holder of this Global Security). If the Bank issues a call notice on any calendar day, the “Call Calculation Date”
will be the next Index Business Day after the call notice is issued.


 



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On the Call Settlement Date, the Holder of this
Security will receive the Call Settlement Amount.


 


Calculation Agent: BMO Capital Markets Corp.


 


Defeasance: Neither full defeasance nor
covenant defeasance applies to this Security.


 


Listing: NYSE Arca, Inc.


 


OTHER TERMS


 


All terms used in this Security that are not defined
in this Security but are defined in the Indenture referred to on the reverse of this Security shall have the meanings assigned to them
in the Indenture. Section headings on the face of this Security are for convenience only and shall not affect the construction of this
Security.


 


An “Averaging Date” means each
of the Index Business Days during the Final Measurement Period or Call Measurement Period, as applicable, subject to adjustment as described
in Section 3 hereof.


 


A “Business Day” means a Monday,
Tuesday, Wednesday, Thursday or Friday that is neither a legal holiday nor a day on which banking institutions are authorized or obligated
by law or executive order to close in New York City.


 


The “Calculation Date” means
June 12, 2041, unless such day is not an Index Business Day, in which case the Calculation Date will be the next Index Business Day, subject
to adjustment as provided in Section 3 hereof.


 




The “Call Measurement Period”
will be the 10 Index Business Days from and including the Call Calculation Date, subject to adjustment as provided in Section 3
hereof. If the Calculation Agent determines that the “aggregate market value” of the portion of this Security to be called
in a whole or partial call is less than or equal to $25,000,000 at the close of trading on the Index Business Day immediately preceding
the date of delivery by the Bank of the notice to holders described above of its exercise of the Call Right, then the Call Measurement
Period will consist solely of the Call Calculation Date, and will not extend for 10 Index Business Days. The Calculation Agent will
determine the aggregate market value for purposes of this provision by multiplying the closing Indicative Note Value on the applicable
date by the number of units represented by this Security that are outstanding on that date. 



 


“Call Settlement Amount” means
a cash payment per $25 Principal Amount of this Security equal to the arithmetic mean of the closing Indicative Note Values on each Index
Business Day in the Call Measurement Period. The Call Settlement Amount will not be less than $0.


 


The “Call Settlement Date” means
the fifth Business Day following the last Index Business Day in the Call Measurement Period.


 



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A “Constituent Issuer” means
any of the issuers of the Index Constituents.


 


The “Daily Deposit Factor” is
4.


 


The “Daily Interest” was $0
on the Initial Trade Date. On any subsequent Exchange Business Day until maturity, call or redemption of the notes represented by this
Security, the Daily Interest will equal the product of (a) the closing Indicative Note Value on the immediately preceding Exchange Business
Day times (b) the Daily Deposit Factor times (c) the Daily Interest Rate divided by (d) 365 times (e) the number of calendar days since
the last Exchange Business Day.


 


The “Daily 


 


Interest Rate”
equals (a) the most recent US Federal Funds Effective Rate minus (b) the Interest Rate Spread. The US Federal Funds Effective Rate
is released by the NY Federal Reserve each day at approximately 9:00 a.m. EST for the prior business day and published on Bloomberg L.P.
(including any successor, “Bloomberg”) page “FEDL01 Index”.


 


The “Daily Investor Fee” was
$0 on the Initial Trade Date. On any subsequent Exchange Business Day until maturity, call or redemption of this Security, the Daily Investor
Fee will equal the product of (a) the Indicative Note Value at the close of the immediately preceding Exchange Business Day times
(b) the Fee Rate divided by (c) 365 times (d) the number of calendar days since the last Exchange Business Day.


 


The “Daily Leverage Factor”
is 3.


 


The “Deposit Amount” on the
Initial Trade Date was equal to the Principal Amount plus the Short Index Amount on the Initial Trade Date, which sum equals $100.
On any subsequent Exchange Business Day until maturity, call or redemption of this Security, the Deposit Amount will equal (a) the closing
Indicative Note Value on the immediately preceding Exchange Business Day times the Daily Deposit Factor plus (b) the Daily Interest on
that Exchange Business Day minus (c) the Daily Investor Fee on that Exchange Business Day.


 


An “Exchange Business Day” means
any day on which the primary exchange or market for trading of this Security is scheduled to be open for trading.


 


The “Final Measurement Period”
means the 10 Index Business Days from and including the Calculation Date, subject to adjustment as provided in Section 3 hereof. If the
Calculation Agent determines that the “aggregate market value” represented by this Security is less than or equal to $25,000,000
at the close of trading on the Index Business Day immediately preceding the Calculation Date, the Final Measurement Period will consist
solely of the Calculation Date.


 


The Calculation Agent will determine the aggregate
market value for purposes of this section by multiplying the closing Indicative Note Value on the applicable date by the number of units
represented by this Security that are outstanding on that date.


 


The “Fee Rate” is 0.95% per
annum.


 


An “Index Business Day” means
any day on which the Index Sponsor publishes the Index Closing Level.





 



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The “Index Closing Level” on
any Index Business Day means the closing level of the Index as published on Bloomberg under the ticker symbol “SOLOILT <Index>”,
subject to adjustment as provided in Section 3 hereof.


 


An “Index Constituent” means
the equity interests of the Constituent Issuer included in the Index.


 


The “Index Performance Factor”
on the Initial Trade Date was 1. On any subsequent Exchange Business Day until maturity, call or redemption of this Security, the Index
Performance Factor will equal (a) the Index Closing Level on that Exchange Business Day (or, if such day is not an Index Business Day,
the Index Closing Level on the immediately preceding Index Business Day) divided by (b) the Index Closing Level on the immediately preceding
Index Business Day, as determined by the Calculation Agent.


 


If a Market Disruption Event occurs or is continuing
on any applicable Index Business Day on which the Index Performance Factor must be determined, the Calculation Agent will determine the
Index Performance Factor for the Securities on that day using an appropriate closing level of the Index for the applicable Index Business
Day, taking into account the nature and duration of such Market Disruption Event. Furthermore, if a Market Disruption Event occurs and
is continuing with respect to this Security on any Index Business Day (or occurred or was continuing on the immediately preceding Index
Business Day), the calculation of the Index Performance Factor will be modified so that the applicable leveraged exposure does not reset
until the first Index Business Day on which no Market Disruption Event with respect to this Security is continuing.


 


Furthermore, if a Market Disruption Event occurs
and is continuing with respect to this Security on any Index Business Day or occurred or was continuing on the immediately preceding Index
Business Day, the calculation of the Index Performance Factor will be modified as set forth in Section 3.


 


“Index Sponsor” means Solactive
AG, or any successor.


 


The “Indicative Note Value”
of this Security on the Initial Trade Date was equal to the Principal Amount of $25. On any subsequent Exchange Business Day until maturity,
call or redemption of this Security, the closing Indicative Note Value will equal (a) the Deposit Amount on that Exchange Business Day
minus (b) the Short Index Amount on that Exchange Business Day; provided that if that calculation results in a value less than or equal
to $0, the closing Indicative Note Value will be $0. If the closing Indicative Note Value is $0 on any Exchange Business Day, or the Intraday
Indicative Value at any time during the core trading session on the NYSE Arca on an Exchange Business Day, is less than or equal to $0,
then the Indicative Note Value on all future days during the term of this Security will be $0.


 


The “Interest Rate Spread”,
as of the Initial Trade Date, means 2.00%. The Interest Rate Spread may be adjusted from time to time by the Calculation Agent, but in
no case will it increase by more than 2.00% per annum, to a maximum amount of 4.00%.


 


The Calculation Agent may adjust the Interest Rate
Spread, subject to the limitations set forth in this document. If it elects to do so, the Bank will notify the Trustee, and the Bank will
issue a press release that we will publish on its website at least five Business Days prior to the effective date (a “Fee Effective
Date”) of the applicable change. We refer to the date on which the Bank publishes such a press release as a “Fee Notice Date.”
Notwithstanding the forgoing, the Fee Effective Date for any increase to the Interest Rate Spread may be any date after the Fee Notice
Date that is designated in the applicable press release.


 



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The “Intraday Indicative Value”
of this Security at any time during an Exchange Business Day will equal (a) the Deposit Amount minus (b) the Intraday Short Index Amount;
provided that if such calculation results in a value less than or equal to $0, the Intraday Indicative Value will be $0. If the Intraday
Indicative Value is less than or equal to $0 at any time on any Exchange Business Day, then both the Intraday Indicative Value and the
closing Indicative Note Value on that day, and for the remainder of the term of this Security, will be $0. The Intraday Indicative Value
is published by Bloomberg under the symbol OILDIV.


 


The “Intraday Short Index Amount”
of this Security will equal the product of (a) the closing Indicative Note Value on the immediately preceding Exchange Business Day times
(b) the Daily Leverage Factor times (c) the Intraday Index Performance Factor.


 


The “Intraday Index Performance Factor”
of this Security will equal (a) the most recently published level of the Index divided by (b) the Index Closing Level on the immediately
preceding Index Business Day.


 


A “Market Disruption Event”
means with respect to the Index, in each case as determined by the Calculation Agent in its sole discretion: 





 


		(a)	the suspension, absence or material limitation of trading in a material number of the Index Constituents for more than two hours or
during the one-half hour before the close of trading in the applicable Primary Exchange or Primary Exchanges;



 


		(b)	the suspension, absence or material limitation of trading in option or futures contracts relating to the Index or to a material number
of Index Constituents on a Related Exchange for more than two hours of trading or during the one-half hour before the close of trading
in that market;



 


		(c)	the applicable Index is not published, or the Calculation Agent reasonably determines that the published level of the Index is or
may be inaccurate; or



  


		(d)	any other event, if the Calculation Agent determines in its sole discretion that the event materially interferes with the ability
of the Bank or any of its affiliates to unwind all or a material portion of a hedge with respect to this Security that the Bank or its
affiliates have effected or may effect.









 


The following events will not be Market
Disruption Events with respect to the Index:


 


		(a)	a limitation on the hours or numbers of days of trading, but only if the limitation results from an announced change in the regular
business hours of the Primary Exchange or Related Exchange; or



 


		(b)	a decision to permanently discontinue trading in the option or futures contracts relating to the Index or any Index Constituents.



 



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For this purpose, an “absence of trading”
in the primary securities market on which option or futures contracts related to the Index or any Index Constituents are traded will not
include any time when that market is itself closed for trading under ordinary circumstances.


 


Notwithstanding the occurrence of one or more of
the events described above, which may, in the Calculation Agent’s discretion, constitute a Market Disruption Event, the Calculation
Agent in its discretion may waive its right to postpone the determination of the Index Closing Level if it determines that one or more
of the above events has not and is not likely to materially impair its ability to determine the Index Closing Level on any date.


 


“Maturity Date” means the third
Business Day following the last Index Business Day in the Final Measurement Period, which is scheduled to be June 28, 2041, unless that
day is not a Business Day, in which case the Maturity Date will be the following Business Day, subject to adjustment as provided in Sections
3 and 11 hereof.


 


“Primary Exchange” means, with
respect to each Index Constituent or each component underlying a successor index, the primary exchange or market of trading such Index
Constituent or such component underlying a successor index.


 


The “Redemption Amount” means
a cash payment on the relevant Redemption Date equal to the Indicative Note Value as of the Redemption Measurement Date, minus the Redemption
Fee Amount. The Redemption Amount will not be less than $0.


 


A “Redemption Confirmation”
is the confirmation of the Holder’s redemption delivered to the Bank.


 



A “Redemption
Date” means any Business Day during the term of this Security until the last scheduled Index
Business Day prior to the Calculation Date or Call Calculation Date, as applicable, subject to
compliance with Section 5 hereof. Any Redemption Date shall also be the third Business
Day after the applicable Redemption Measurement Date.


 



The “Redemption Fee Amount”
equals 0.125% of the Indicative Note Value, subject to the Bank’s right from time to time to reduce or waive the Redemption Fee
Amount in its sole discretion on a case-by-case basis.


 


The applicable “Redemption Measurement
Date” means the Index Business Day following the applicable Redemption Notice Date, subject to adjustment as provided in Section
3 hereof. The Bank reserves the right to accelerate the Redemption Measurement Date to the Redemption Notice Date, in its sole discretion.








 


A “Redemption
Notice” is the form provided by the Bank substantially in the form of Annex A to this Security.


 


A “Redemption Notice Date” will
be the date that the applicable Redemption Notice and Redemption Confirmation are delivered in compliance with Section 5 hereof. If such
Redemption Notice or Redemption Confirmation is delivered on a day that is not an Index Business Day, then the Redemption Notice Date
shall be the next Index Business Day.


 



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A “Related Exchange” means,
with respect to each Index Constituent or each component underlying a successor index, each exchange or quotation system where trading
has a material effect (as determined by the Calculation Agent) on the overall market for futures or options contracts relating to such
Index Constituent or such component underlying a successor index.


 


The “Short Index Amount” of
this Security on the Initial Trade Date was equal the Daily Leverage Factor times the principal amount, which equals $75. On any
subsequent Exchange Business Day until maturity, call or redemption of this Security, the Short Index Amount will equal the product of
(a) the closing Indicative Note Value on the immediately preceding Exchange Business Day times (b) the Daily Leverage Factor times (c)
the Index Performance Factor on that Exchange Business Day. 


 


The “Trustee” means, The Bank
of New York Mellon, as series trustee under the second supplemental indenture, dated as of May 27, 2021, among Bank of Montreal, The Bank
of New York Mellon, as series trustee with respect to the Senior Medium-Term Notes, Series G, and Wells Fargo Bank, National Association,
and as further amended from time to time.


 


		1.	Promise to Pay at Maturity or Upon Early Redemption or Call



 


Bank of Montreal, a Canadian chartered bank (together
with its successors and assigns, the “Bank”), for value received, hereby promises to pay (or cause to be paid) to Cede &
Co., as nominee for The Depository Trust Company, or registered assigns, the principal sum, calculated as provided under (i) “Payment
upon Redemption by the Holder” and elsewhere on the face of this Security on the applicable Redemption Date, in the case of any
Securities in respect of which a Holder exercises such Holder’s right to require the Bank to repurchase such Holder’s Securities
prior to the Maturity Date, (ii) “Payment upon Call by the Bank” and elsewhere on the face of this Security on the applicable
Call Settlement Date, in the case of any Securities in respect of which the Bank exercises its right to repurchase all Securities prior
to the Maturity Date or (iii) “Payment at Maturity” and elsewhere on the face of this Security on the Maturity Date.


 


		2.	Payment of Interest



 


The principal of this Security shall not bear interest.


 


		3.	Discontinuance or Modification of the Index; Market Disruption Event



 
If
the Index Sponsor discontinues publication of the Index, or if the Bank is unable to obtain or maintain a license to use the Index in
connection with the Securities, and the Index Sponsor or anyone else publishes a substitute index that the Calculation Agent determines
is comparable to the Index, then the Calculation Agent will replace the Index with that substitute index (the “successor index”)
for all purposes, and all terms of the Securities applying to the Index will thereafter apply to the successor index instead. If the
Calculation Agent replaces the applicable Index with a successor index, then the Calculation Agent will determine the Cash Settlement
Amount, Redemption Amount or Call Settlement Amount, as applicable, by reference to the successor index. 




 



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If the Calculation Agent determines that the publication
of the applicable Index is discontinued, or if the Bank is unable to obtain or maintain a license to use the Index (or any applicable
successor index) in connection with the Securities, the Calculation Agent will determine the level of the Index and thus the Cash Settlement
Amount, Redemption Amount or Call Settlement Amount, as applicable, by a computation methodology that the Calculation Agent determines
will as closely as reasonably possible replicate the Index.


 


If the Calculation Agent determines that the Index,
the Index Constituents or the method of calculating the Index is changed at any time in any respect, including whether the change is made
by the Index Sponsor under its existing policies or following a modification of those policies, is due to the publication of a successor
index, is due to events affecting the Index Constituents or is due to any other reason and is not otherwise reflected in the level of
the Index by the Index Sponsor pursuant to the Index methodology, then the Calculation Agent will be permitted (but not required) to make
such adjustments in the Index or the method of its calculation as it believes are appropriate to ensure that the Index Closing Level used
to determine the Cash Settlement Amount, Redemption Amount or Call Settlement Amount, as applicable, is equitable.


 


If a Market Disruption Event with respect to this
Security occurs or is continuing on any Index Business Day (for purposes of this paragraph, the “date of determination”) or
if a Market Disruption Event with respect to this Security occurred or was continuing on the Index Business Day immediately preceding
the date of determination, then the Index Performance Factor for this Security on the date of determination will be determined as set
forth in the pricing supplement and product supplement.


 


To the extent a Market Disruption Event has occurred
or is continuing on an Averaging Date or on a Redemption Measurement Date, the closing Indicative Note Value for such Averaging Date or
for such Redemption Measurement Date will be determined by the Calculation Agent or one of its affiliates on the first succeeding Index
Business Day on which a Market Disruption Event does not occur or is not continuing (the “Deferred Averaging Date”) irrespective
of whether, pursuant to such determination, the Deferred Averaging Date would fall on a date originally scheduled to be an Averaging Date.
If the postponement described in the preceding sentence results in the closing Indicative Note Value being calculated on a day originally
scheduled to be an Averaging Date, for purposes of determining the closing Indicative Note Value on the Index Business Days during the
Final Measurement Period or Call Measurement Period, or on a Redemption Measurement Date, as applicable, the Calculation Agent or one
of its affiliates, as the case may be, will apply the closing Indicative Note Value for such Deferred Averaging Date (i) on the date(s)
of the original Market Disruption Event and (ii) such Averaging Date.


 


In no event, however, will any postponement pursuant
to the two immediately preceding paragraphs result in the final Averaging Date or the Redemption Measurement Date, as applicable, occurring
more than three Index Business Days following the day originally scheduled to be such final Averaging Date or Redemption Measurement Date.
If the third Index Business Day following the date originally scheduled to be the final Averaging Date, or the Redemption Measurement
Date, as applicable, is not an Index Business Day or a Market Disruption Event has occurred or is continuing on such third Index Business
Day, the Calculation Agent or one of its affiliates will determine the Index Closing Level to be used in the calculation of the closing
Indicative Note Value based on its good faith estimate of the Index Closing Level that would have prevailed on such third Index Business
Day but for such Market Disruption Event.


 



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		4.	Payment at Maturity or Upon Repurchase



 


The payment of this Security that becomes due and
payable on the Maturity Date, Call Settlement Date or a Redemption Date, as the case may be, shall be the cash amount that must be paid
to redeem this Security as provided herein under “Payment at Maturity,” “Payment Upon Redemption by the Holder”
and “Payment Upon Call by the Bank,” respectively. The payment of this Security that becomes due and payable upon acceleration
of the Maturity Date hereof after an Event of Default has occurred pursuant to the Indenture shall be the payment as determined pursuant
to Section 9 hereof. When the principal referred to in either of the two preceding sentences has been paid as provided herein (or such
payment has been made available), the principal of this Security shall be deemed to have been paid in full, whether or not this Security
shall have been surrendered for payment or cancellation. References to the payment at maturity or upon repurchase of this Security on
any day shall be deemed to mean the payment of cash that is payable on such day as provided in this Security. This Security shall cease
to be Outstanding as provided in the definition of such term in the Indenture when the principal of this Security shall be deemed to have
been paid in full as provided above.


 


		5.	Procedure for Early Redemption



 


Prior to the Maturity Date, the Holder may elect
to offer all or a portion of the Principal Amount of this Security for redemption by the Bank on any Redemption Date, in a minimum of
at least 25,000 Securities by following the procedures set forth below:


 


		·	cause its broker to deliver a Redemption Notice to the Bank via email no later than 2:00 p.m. (New York City time) on the Index Business
Day preceding the applicable Redemption Measurement Date;



 


		·	cause its broker to deliver the signed Redemption Confirmation to the Bank via e-mail in the specified form by 5:00 p.m. (New York
City time) on the same day. The Bank or its affiliate must acknowledge receipt in order for the Redemption Confirmation to be effective;



 


		·	cause its broker to instruct its DTC custodian book a delivery vs. payment trade with respect to this Security on the applicable Redemption
Measurement Date at a price equal to the Redemption Amount; and



 


		·	cause its broker to make its DTC custodian deliver the trade as booked for settlement via DTC at or prior to 10:00 a.m. (New York
City time) on the applicable Redemption Date.



 


Any redemption instructions received in compliance
with the foregoing procedures shall be irrevocable and, upon compliance with the foregoing procedures, the Bank shall be obliged to repurchase
the principal amount of this Security so requested to be redeemed on the Redemption Date.


 


The Bank will act as paying agent in connection
with repurchases at the election of the Holder of this Security and upon such repurchase the Bank shall so advise the Trustee and deliver
the Principal Amount of this Security that is so repurchased to the Trustee for cancellation.


 



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		6.	Role of Calculation Agent



 
BMO
Capital Markets Corp., an affiliate of the Bank, will act as the Calculation Agent for this Security. The Calculation Agent will make
all determinations relating to this Security, including the Index Performance Factor, the Index Closing Level on any Index Business Day
on which such Index Closing Level is to be determined during the term of this Security, the Indicative Note Value, the Deposit Amount,
the Short Index Amount, the Daily Interest, the Daily Investor Fee, the Redemption Fee Amount, the Cash Settlement Amount, if any, the
Redemption Amount, if any, and the Call Settlement Amount, if any. The Calculation Agent will also be responsible for determining whether
a Market Disruption Event has occurred, whether the Index has been discontinued and whether there has been a material change in the Index.
All determinations made by the Calculation Agent will be at the sole discretion of the Calculation Agent and will, in the absence of
manifest error, be conclusive for all purposes and binding on the Holder and on the Bank. The Holder shall not be entitled to any compensation
from the Bank for any loss suffered as a result of any determinations or calculations made by the Calculation Agent. 




 


The Calculation Agent will provide written notice
to the Trustee at its New York office, on which notice the Trustee may conclusively rely, of the amount to be paid at Maturity or Call,
or upon early redemption on or prior to 12:00 p.m., New York City time, on the Business Day immediately preceding the Maturity Date, any
Redemption Date or any Call Settlement Date, as applicable. Insofar as this Security provides for the Calculation Agent to determine the
matters specified in the preceding paragraph and all such other matters as may be specified elsewhere herein as matters to be determined
by the Calculation Agent, the Calculation Agent may do so from any source or sources of the kind contemplated or otherwise permitted hereby
notwithstanding that any one or more of such sources are the Calculation Agent, affiliates of the Calculation Agent or affiliates of the
Bank.


 


		7.	Tax Characterization



 


By its purchase of this Security, the Holder, on
behalf of itself and any other Person having a beneficial interest in this Security, hereby agrees with the Bank (in the absence of a
change in law or administrative or judicial ruling to the contrary) to treat this Security as a pre-paid cash-settled derivative contract
in respect of the Index for all U.S. federal income tax purposes.


 


		8.	Payment



 


Payment of any amount payable on this Security
will be made in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public
and private debts. Payment will be made to an account designated by the Holder in writing to the Bank and the Trustee on or before any
Redemption Date or the last Index Business Day in the Call Measurement Period or the Final Measurement Period, as applicable, and acceptable
to the Bank or, if no such account is designated and acceptable as aforesaid, at the office or agency of the Bank maintained for that
purpose in The City of New York; provided, however, that payment on the Maturity Date, any Redemption Date or the Call
Settlement Date shall be made only upon surrender of this Security at such office or agency (unless the Bank waives surrender). Notwithstanding
the foregoing, if this Security is a Global Security, any payment may be made pursuant to the Applicable Procedures of the Depositary
as permitted in said Indenture.


 



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All
dollar amounts related to determination of the Indicative Note Value, the Daily Investor Fee, the Daily Interest, the Deposit Amount,
the Short Index Amount, the Redemption Amount and Redemption Fee Amount, if any, the Call Settlement Amount, if any, and the Cash Settlement
Amount, if any, may be rounded by the Calculation Agent; and all dollar amounts paid on the aggregate Principal Amount of this Security
will be rounded to the nearest cent, with one-half cent rounded upward. 




 


		9.	Default Amount Upon Acceleration of Maturity



 


In case an Event of Default with respect to this
Security shall have occurred and be continuing, the amount declared due and payable upon any acceleration of the maturity of this Security
will be determined by the Calculation Agent and will be an amount in cash equal to the Redemption Amount, calculated as if the date of
acceleration were the Redemption Measurement Date. For purposes of this calculation the Repurchase Fee Amount shall be $0.


 


		10.	Split or Reverse Split of the Securities



 


If the Bank or the Calculation Agent decides to
initiate a split or reverse split, the Calculation Agent will issue a notice to Holders announcing the split or reverse split, specifying
the effective date of the split or reverse split. The Calculation Agent will determine the ratio of such split or reverse split, as the
case may be, using relevant market indicia, and will adjust the terms of this Security accordingly. Any adjustment of the closing indicative
value will be rounded to eight decimal places.


 


In the case of a reverse split, the Bank reserves
the right to address odd numbers of Securities (commonly referred to as “partials”) in a manner determined by the Calculation
Agent in its sole discretion.


 


The minimum number of Securities an investor must
offer for repurchase under Section 5 hereof will not change as a result of any split or reverse split of this Security, but the stated
Principal Amount of the Securities corresponding to such minimum number will change.


 


		11.	Extension of Maturity.



 


The Maturity Date may be extended at the Bank’s
option for up to two additional five-year periods. The Bank may only extend the scheduled Maturity Date for five years at a time. If the
Bank exercises its option to extend the maturity of this Security, the Bank will notify DTC and the Trustee at least 45 but not more than
60 calendar days prior to the then scheduled Maturity Date. The Bank will provide that notice to DTC and the Trustee in respect of
each five-year extension of the scheduled Maturity Date of this Security.


 


		12.	Payment When Offices Are Closed



 


Notwithstanding any provision of this Security
or of the Indenture, if, after giving effect to any provision of this Security governing the timing of payment hereunder of the payment
at maturity, call or redemption, payment of such amount would otherwise be due on this Security on a day (the “Specified Day”)
that is not a Business Day, such amount may be paid (or made available for payment) on the next succeeding Business Day with the same
force and effect as if such amount were paid on the Specified Day. The provisions of this Section shall apply to this Security in lieu
of the provisions of Section 113 of the Indenture.


 



    		13	



    	 



    




 


		13.	Increases and Decreases of Principal Amount



 


At any time after the initial issue date, the
aggregate Principal Amount of this Security shall be the most recent amount set forth on Schedule I hereto under the heading ”Principal
Amount of this Security Following Such Increase or Decrease”, if applicable. Upon receipt of a written instruction from the Bank
instructing the Trustee to issue more Securities represented by this Security and delivery of such Securities through the DTC book-entry
system, the Trustee shall make notations on Schedule I to evidence such issuance and the new aggregate Principal Amount represented by
this Security. The Bank may also instruct the Trustee to cancel Securities held by the Bank represented by this Security. Upon delivery
of the Securities to be cancelled through the DTC book-entry system, the Trustee shall make notations on Schedule I to evidence such
cancellation and the new aggregate Principal Amount represented by this Security. The Trustee may, as necessary, add additional pages
of the same format to Schedule I, to evidence additional issuances, cancellations and the aggregate Principal Amount represented by this
Security, which additional pages shall constitute part of this Security to the same extent as if they had been part of this Security
at the initial issuance and authentication hereof.


  


		14.	Reverse of this Security



 


Reference is hereby made to the further provisions
of this Security set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth
at this place.


 


		15.	Certificate of Authentication



 


Unless the certificate of authentication hereon
has been executed by the Trustee referred to on the reverse hereof by manual signature, this Security shall not be entitled to any benefit
under the Indenture or be valid or obligatory for any purpose.


 



    		14	



    	 



    




 


IN WITNESS WHEREOF, the Bank has caused this instrument
to be duly executed.


 


	Dated:  November 11, 2021	Bank of Montreal	 
	 	 	 	 	 
	 	 	 	 	 
	 	By:  	 	 	 
	 	 	Name:     	Laurence Kaplan	 
	 	 	Title:	Managing Director, Cross-Asset Solutions Global Structured
Products BMO Capital Markets



 


 


 


 


This is one of the Securities of the series designated
therein referred to in the within-mentioned Indenture.


 


 


Dated: November 11, 2021


 


	 	THE BANK OF NEW YORK MELLON	 
	 	as Trustee	 
	 	 	 	 
	 	 	 	 
	 	By:	 	 
	 		Authorized Signatory	 




 



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(Reverse of Security)


 


This Security is one of a duly authorized issue
of securities of the Bank (herein called the “Securities”), issued and to be issued in one or more series under the Senior
Indenture (the “Indenture”), dated as of January 25, 2010, between Bank of Montreal and Wells Fargo Bank, National Association,
as trustee, as supplemented by the first supplemental indenture thereto, dated as of September 23, 2018, between Bank of Montreal and
Wells Fargo Bank, National Association, as trustee, and the second supplemental indenture thereto, dated as of May 27, 2021, among Bank
of Montreal, The Bank of New York Mellon, as trustee with respect to the Senior Medium-Term Notes, Series G, and Wells Fargo Bank, National
Association, and as further amended from time to time), and reference is hereby made to the Indenture for a statement of the respective
rights, limitations of rights, duties and immunities thereunder of the Bank, the Trustee and the Holders of the Securities and of the
terms upon which the Securities are, and are to be, authenticated and delivered. Insofar as the provisions of the Indenture may conflict
with the provisions set forth on the face of this Security, the latter shall control for purposes of this Security.


 


The terms set forth in the sections “Summary”
of the pricing supplement and “Additional Terms of the Notes” of the product supplement (each as it may be amended or supplemented)
relating to the notes represented hereby are incorporated by reference herein, and are binding upon Holders of such notes.


 


This Security is one of the series designated
on the face hereof limited in aggregate principal amount to $100,000,000, provided that the Bank may, without the consent of any Holder,
at any time and from time to time, increase such principal amount if in the future it determines that it may wish to sell additional
Securities of this series. References herein to “this series” mean the series designated on the face hereof. 


 


The Indenture permits, with certain exceptions
as therein provided, the amendment thereof and the modification of the rights and obligations of the Bank and the rights of the Holders
of the Securities of each series to be affected under the Indenture at any time by the Bank and the Trustee with the consent of the Holders
of a majority in principal amount of the Securities at the time Outstanding of each series to be affected, or in certain cases the unanimous
consent of each of such Holders. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount
of the Securities of each series at the time Outstanding, on behalf of the Holders of all Securities of such series, to waive compliance
by the Bank with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent
or waiver by the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security
and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation
of such consent or waiver is made upon this Security.


 


As provided in and subject to the provisions of
the Indenture, the Holder of this Security shall not have the right to institute any proceeding with respect to the Indenture or for the
appointment of a receiver or trustee or for any other remedy thereunder, unless such Holder shall have previously given the Trustee written
notice of a continuing Event of Default with respect to the Securities of this series, the Holders of not less than 25% in principal amount
of the Securities of this series at the time Outstanding shall have made written request to the Trustee to institute proceedings in respect
of such Event of Default as Trustee and offered the Trustee reasonable indemnity satisfactory to the Trustee, and the Trustee shall not
have received from the Holders of a majority in principal amount of Securities of this series at the time Outstanding a direction inconsistent
with such request, and shall have failed to institute any such proceeding, for 90 days after receipt of such notice, request and offer
of indemnity. The foregoing shall not apply to any suit instituted by the Holder of this Security for the enforcement of any payment of
principal hereof or any premium or interest hereon on or after the respective due dates expressed herein.


 



    		16	



    	 



    




 


No reference herein to the Indenture and no provision
of this Security or of the Indenture shall alter or impair the obligation of the Bank, which is absolute and unconditional, to pay the
principal of this Security as herein provided.


 


As provided in the Indenture and subject to certain
limitations therein set forth, the transfer of this Security is registrable in the Security Register, upon surrender of this Security
for registration of transfer at the office or agency of the Bank in any place where the principal of and any premium and interest on this
Security are payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Bank and the Security
Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Securities of
this series and of like tenor, of authorized denominations and for the same aggregate principal amount, will be issued to the designated
transferee or transferees.


 


The Securities of this series are issuable only
in registered form without coupons in denominations of $25.00 and any integral multiple thereof. As provided in the Indenture and subject
to certain limitations therein set forth, Securities of this series are exchangeable for a like aggregate principal amount of Securities
of this series and of like tenor of a different authorized denomination, as requested by the Holder surrendering the same.


 


No service charge shall be made for any such registration
of transfer or exchange, but the Bank or the Trustee may require payment of a sum sufficient to cover any tax or other governmental charge
payable in connection therewith.


 


Prior to due presentment of this Security for registration
of transfer, the Bank, the Trustee and any agent of the Bank or the Trustee may treat the Person in whose name this Security is registered
as the owner hereof for all purposes, whether or not this Security be overdue, and neither the Bank, the Trustee nor any such agent shall
be affected by notice to the contrary.


 


All terms used in this Security that are defined
in the Indenture shall have the meanings assigned to them in the Indenture.


 


This Security is a Global Security and is subject
to the provisions of the Indenture relating to Global Securities, including the limitations in Section 305 thereof on transfers and
exchanges of Global Securities.


 


This Security and the Indenture shall be governed
by and construed in accordance with the laws of the State of New York. 


 



    		17	



    	 



    




 


SCHEDULE I


 


The initial principal amount
of this Security is $4,000,000. The following increases or decreases in the Principal Amount of this Security have been made:


 


	Date	Amount of Increase in 

Principal Amount of 

this Security	Amount of Decrease in 

Principal Amount of 

this Security	Principal Amount of this 

Security Following Such 

Increase or Decrease	Initials of Officer 

of Trustee
	 	$	$	$	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 
	 	 	 	 	 


 



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ANNEX A


 


FORM OF NOTICE OF EARLY REDEMPTION


 


To: [     ].com


 
Subject: Notice of Early Redemption, CUSIP No.:
063679575







 


[BODY OF EMAIL]


 


Name of broker: [ ]


 


Name of beneficial holder: [ ]


 


Number of Notes to be redeemed: [ ]


 


Applicable Redemption Measurement Date: [ ], 20[
]


 


Broker Contact Name: [ ]


 


Broker Telephone #: [ ]


 


Broker DTC # (and any relevant sub-account): [
]


 





The undersigned acknowledges that in addition to any other requirements
specified in the pricing supplement relating to the notes being satisfied, the notes will not be redeemed unless (i) this notice of redemption
is delivered to BMO Capital Markets Corp. (“BMO Capital Markets”) by 2:00 p.m. (New York City time) on the Index
Business Day prior to the applicable Redemption Measurement Date; (ii) the confirmation, as completed and signed by the undersigned
is delivered to BMO Capital Markets by 5:00 p.m. (New York City time) on the same day the notice of redemption is delivered; (iii) 
the undersigned has booked a delivery vs. payment (“DVP”) trade on the applicable Redemption Measurement Date, facing BMO
Capital Markets DTC 5257 and (iv) the undersigned instructs DTC to deliver the DVP trade to BMO Capital Markets as booked for settlement
via DTC at or prior to 10:00 a.m. (New York City time) on the applicable Redemption Date.


 


The undersigned further acknowledges that the undersigned has read
the section “Risk Factors — You will not know the Redemption Amount at the time you elect to request that we redeem your notes”
in the pricing supplement relating to the notes and the undersigned understands that it will be exposed to market risk on the Redemption
Measurement Date.





 


 


19