Pricing Supplement dated January 5, 2024 to the Prospectus Supplement and Prospectus, each dated May 26, 2022

We urge you to read this pricing supplement together with the prospectus supplement and prospectus. You may access these documents on the SEC website at www.sec.gov as follows (or if that address has changed, by reviewing our filings for the relevant date on the SEC website):

Prospectus supplement and prospectus dated May 26, 2022:
https://www.sec.gov/Archives/edgar/data/927971/000119312522160519/d269549d424b5.htm

Investing in the Notes involves risks, including those described in “Risk Factors” beginning on page P-4 below, S-2 of the accompanying prospectus supplement and on page 8 of the accompanying prospectus. In particular, please note that all payments on the Notes are subject to our credit risk.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these Notes or passed upon the accuracy of this pricing supplement, the prospectus supplement or the prospectus. Any representation to the contrary is a criminal offense.

The Notes will be our unsecured obligations and will not be savings accounts or deposits that are insured by the United States Federal Deposit Insurance Corporation, the Deposit Insurance Fund, the Canada Deposit Insurance Corporation or any other governmental agency or instrumentality or other entity.

We expect to deliver the Notes through the facilities of The Depository Trust Company on January 9, 2024.

We may use this pricing supplement in the initial sale of Notes. In addition, BMO Capital Markets Corp. (“BMOCM”) or another of our affiliates may use this pricing supplement in market-making transactions in any Notes after their initial sale. Unless our agent or we inform you otherwise in the confirmation of sale, this pricing supplement is being used in a market-making transaction.

The public offering price will include accrued interest from January 9, 2024, if settlement occurs after that date. BMOCM will purchase the Notes from us on the settlement date at a purchase price equal to 99.9472% of the principal amount. Certain dealers who purchase the Notes for sale to certain fee-based advisory accounts and/or eligible institutional investors may forgo some or all of their selling concessions, fees or commissions. The price to public for investors purchasing the Notes in these accounts and/or for an eligible institutional investor may be as low as $999.472 (99.9472%) per $1,000 in principal amount of the Notes. See “Supplemental Plan of Distribution” in this pricing supplement.

The Notes are part of a series of our senior debt securities called Senior Medium-Term Notes, Series I, and therefore, this pricing supplement (the “pricing supplement”), should be read together with the accompanying prospectus supplement and prospectus, each dated May 26, 2022. Terms used but not defined in this pricing supplement have the meanings given them in the accompanying prospectus or accompanying prospectus supplement, unless the context requires otherwise.

In this section, references to “holders” mean those who own the Notes registered in their own names, on the books that we or the trustee maintain for this purpose, and not those who own beneficial interests in the Notes registered in street name or in the Notes issued in book-entry form through The Depository Trust Company or another depositary. Owners of beneficial interests in the Notes should read the section entitled “Description of the Notes We May Offer — Legal Ownership” in the accompanying prospectus supplement and “Description of Debt Securities We May Offer — Legal Ownership and Book-Entry Issuance” in the accompanying prospectus.

The Notes are part of a series of senior debt securities entitled “Senior Medium-Term Notes, Series I” (the “medium-term notes”) that we may issue from time to time under the senior indenture, dated January 25, 2010, as amended and supplemented to date, between Bank of Montreal and The Bank of New York Mellon, as trustee. This pricing supplement summarizes specific financial and other terms that apply to the Notes. Terms that apply generally to our medium-term notes are described in “Description of the Notes We May Offer” in the accompanying prospectus supplement. The terms described herein supplement those described in the accompanying prospectus and the accompanying prospectus supplement, and, if the terms described here are inconsistent with those described in those documents, the terms described herein are controlling.

The Notes are bail-inable notes (as defined in the accompanying prospectus supplement) and subject to conversion in whole or in part – by means of a transaction or series of transactions and in one or more steps – into common shares of Bank of Montreal or any of its affiliates under subsection 39.2(2.3) of the Canada Deposit Insurance Corporation Act (the “CDIC Act”) and to variation or extinguishment in consequence, and subject to the application of the laws of the Province of Ontario and the federal laws of Canada applicable therein in respect of the operation of the CDIC Act with respect to the Notes.

Please note that the information about the price to the public and the net proceeds to Bank of Montreal on the front cover of this pricing supplement relates only to the initial sale of the Notes. If you have purchased the Notes in a market-making transaction after the initial sale, information about the price and date of sale to you will be provided in a separate confirmation of sale.

During the period from and including January 9, 2024 to but excluding July 9, 2024, the Notes will bear interest at the fixed rate of 5.50% per annum. From and including July 9, 2024 to but excluding the maturity date, the Notes will bear interest at a floating rate per annum which equals the Reference Rate plus the Spread, subject to the Interest Rate Floor set forth above.

Interest will be payable quarterly in arrears on the Interest Payment Dates set forth above. Interest on the Notes will accrue on the basis of a 360-day year of twelve 30-day months. Interest will be payable to holders of record on the 3^rd business day before each Interest Payment Date. Interest will accrue from and including each Interest Payment Date (or the issue date, as applicable) to but excluding the next Interest Payment Date. In the event that an Interest Payment Date or the Stated Maturity falls on a day other than a business day, in New York, New York, principal and/or interest will be paid on the next succeeding business day in New York and no interest on such payment shall accrue for the period from and after such Interest Payment Date or Stated Maturity, as the case may be, to such next succeeding business day.

By its acquisition of an interest in any Note, each holder or beneficial owner of that Note is deemed to (i) agree to be bound, in respect of that Note, by the CDIC Act, including the conversion of that Note, in whole or in part – by means of a transaction or series of transactions and in one or more steps – into common shares of Bank of Montreal or any of its affiliates under subsection 39.2(2.3) of the CDIC Act and the variation or extinguishment of that Note in consequence, and by the application of the laws of the Province of Ontario and the federal laws of Canada applicable therein in respect of the operation of the CDIC Act with respect to that Note; (ii) attorn and submit to the jurisdiction of the courts in the Province of Ontario with respect to the CDIC Act and those laws; (iii) have represented and warranted that Bank of Montreal has not directly or indirectly provided financing to the holder or beneficial owner of the bail-inable notes for the express purpose of investing in the bail-inable notes; and (iv) acknowledge and agree that the terms referred to in paragraphs (i) and (ii), above, are binding on that holder or beneficial owner despite any provisions in the indenture or that Note, any other law that governs that Note and any other agreement, arrangement or understanding between that holder or beneficial owner and Bank of Montreal with respect to that Note.

Holders and beneficial owners of any Note will have no further rights in respect of that Note to the extent that Note is converted in a bail-in conversion, other than those provided under the bail-in regime, and by its acquisition of an interest in any Note, each holder or beneficial owner of that Note is deemed to irrevocably consent to the converted portion of the principal amount of that Note and any accrued and unpaid interest thereon being deemed paid in full by Bank of Montreal by the issuance of common shares of Bank of Montreal (or, if applicable, any of its affiliates) upon the occurrence of a bail-in conversion, which bail-in conversion will occur without any further action on the part of that holder or beneficial owner or the trustee; provided that, for the avoidance of doubt, this consent will not limit or otherwise affect any rights that holders or beneficial owners may have under the bail-in regime.

See “Description of the Notes We May Offer — Special Provisions Related to Bail-inable Notes” in the accompanying prospectus supplement for a description of provisions applicable to the Notes as a result of Canadian bail-in powers.

Prior to making an investment in the Notes, investors should carefully consider the information set forth in the prospectus supplement and the prospectus under the caption "Risk Factors," together with the information in this section.

Our credit ratings and credit spreads may adversely affect the market value of the Notes. Investors are dependent on our ability to pay all amounts due on the Notes on each Interest Payment Date and at maturity, and therefore investors are subject to our credit risk and to changes in the market’s view of our creditworthiness. Any decline in our credit ratings or increase in the credit spreads charged by the market for taking our credit risk is likely to adversely affect the value of the Notes.

While the payment at maturity described in this pricing supplement is based on the full principal amount of your Notes, the original offering price of the Notes includes the commission received by BMOCM and other dealers and the cost of hedging our obligations under the Notes. As a result, the price, if any, at which BMOCM may be willing to purchase Notes from you in secondary market transactions will likely be lower than the price you paid for your Notes, and any sale prior to the maturity date could result in a substantial loss to you.

The Secured Overnight Financing Rate Is a Relatively New Reference Rate and its Composition and Characteristics Are Not the Same as LIBOR.

On June 22, 2017, the Alternative Reference Rates Committee (“ARRC”) convened by the Board of Governors of the Federal Reserve System and the Federal Reserve Bank of New York identified the Secured Overnight Financing Rate (“SOFR”) as the rate that, in the consensus view of the ARRC, represented best practice for use in certain new U.S. dollar derivatives and other financial contracts. SOFR is a broad measure of the cost of borrowing cash overnight collateralized by U.S. treasury securities, and has been published by the Federal Reserve Bank of New York since April 2018. The Federal Reserve Bank of New York has also begun publishing historical indicative Secured Overnight Financing Rates from 2014. Investors should not rely on any historical changes or trends in SOFR as an indicator of future changes in SOFR.

The composition and characteristics of SOFR are not the same as those of LIBOR, and SOFR is fundamentally different from LIBOR for two key reasons. First, SOFR is a secured rate, while LIBOR is an unsecured rate. Second, SOFR is an overnight rate, while LIBOR is a forward-looking rate that represents interbank funding over different maturities (e.g., three months). As a result, there can be no assurance that SOFR (including SOFR, compounded as described in this document) will perform in the same way as LIBOR would have at any time, including, without limitation, as a result of changes in interest and yield rates in the market, market volatility or global or regional economic, financial, political, regulatory, judicial or other events.

Since the initial publication of SOFR, daily changes in SOFR have, on occasion, been more volatile than daily changes in other benchmark or market rates, such as USD LIBOR. Although changes in SOFR, compounded as described in this document, generally are not expected to be as volatile as changes in daily levels of SOFR, the return on and value of the Notes may fluctuate more than floating rate securities that are linked to less volatile rates. In addition, the volatility of SOFR has reflected the underlying volatility of the overnight U.S. Treasury repo market. The Federal Reserve Bank of New York has at times conducted operations in the overnight U.S. Treasury repo market in order to help maintain the federal funds rate within a target range. There can be no assurance that the Federal Reserve Bank of New York will continue to conduct such operations in the future, and the duration and extent of any such operations is inherently uncertain. The effect of any such operations, or of the cessation of such operations to the extent they are commenced, is uncertain and could be materially adverse to investors in the Notes.

Market Participants May Not Consider SOFR a Suitable Replacement or Successor to LIBOR.

According to the ARRC, SOFR was developed for use in certain U.S. dollar derivatives and other financial contracts as an alternative to USD LIBOR in part because it is considered a good representation of general funding conditions in the overnight U.S. Treasury repurchase agreement market. However, as a rate based on transactions secured by U.S. Treasury securities, it does not measure bank-specific credit risk and, as a result, is less likely to correlate with the unsecured short-term funding costs of banks. This may mean that market participants would not consider SOFR a suitable replacement or successor for all of the purposes for which USD LIBOR historically has been used (including, without limitation, as a representation of the unsecured short-term funding costs of banks), which may, in turn, lessen market acceptance of SOFR. Any failure of SOFR to gain market acceptance could adversely affect the return on and value of the Notes and the price at which investors can sell the Notes in any secondary market.

In addition, if SOFR does not prove to be widely used as a benchmark in securities that are similar or comparable to the Notes, the trading price of the Notes may be lower than those of securities that are linked to rates that are more widely used. Similarly, market terms for floating-rate debt securities linked to SOFR, such as the spread over the base rate reflected in interest rate provisions or the manner of compounding the base rate, may evolve over time, and trading prices of the Notes may be lower than those of later-issued SOFR-based debt securities as a result. Investors in the Notes may not be able to sell the Notes at all or may not be able to sell the Notes at prices that will provide them with a yield comparable to similar investments that have a developed secondary market, and may consequently suffer from increased pricing volatility and market risk.

The Interest Rate on the Notes Is Based on a Compounded SOFR Rate, which is Relatively New in the Marketplace.

The interest rate on the Notes during the floating rate period will be based on the Reference Rate, which is calculated using the SOFR published by the Federal Reserve Bank of New York, compounded according to the specific formula described under “The Secured Overnight Financing Rate,” and not the SOFR rate published on or in respect of a particular date during such interest period or an arithmetic average of SOFR rates during such period. For this and other reasons, the interest rate on the Notes during any applicable interest period will not necessarily be the same as the interest rate on other SOFR-linked investments that use an alternative basis to determine the applicable interest rate. Further, if the SOFR rate in respect of a particular date during an interest period is negative, its contribution to the Reference Rate will be less than one, resulting in a reduction to the formula used to calculate the interest payable on the Notes on the Interest Payment Date for such interest period.

Limited market precedent exists for securities that use SOFR as the interest rate and the method for calculating an interest rate based upon SOFR in those precedents varies. Accordingly, the use of SOFR and/or the specific formula for the Reference Rate used in the Notes may not be widely adopted by other market participants, if at all. If the market adopts a different calculation method, that would likely adversely affect the market value of the Notes.

The Reference Rate with Respect to a Particular Interest Period Will Only Be Capable of Being Determined Near the End of the Relevant Interest Period.

The Reference Rate applicable to a particular interest period and, therefore, the amount of interest payable with respect to such interest period will be determined on the Interest Determination Date (as defined herein) for such interest period. Because each such date is near the end of such interest period, you will not know the amount of interest payable with respect to a particular interest period until shortly prior to the related Interest Payment Date, and it may be difficult for you to reliably estimate the amount of interest that will be payable on each such Interest Payment Date. In addition, some investors may be unwilling or unable to trade the Notes without changes to their information technology systems, both of which could adversely impact the liquidity and trading price of the Notes.

SOFR May Be Modified or Discontinued and the Notes May Bear Interest by Reference to a Rate Other than SOFR, which Could Adversely Affect the Value of the Notes.

SOFR is published by the Federal Reserve Bank of New York based on data received by it from sources other than us, and we have no control over its methods of calculation, publication schedule, rate revision practices or availability of SOFR at any time. There can be no guarantee, particularly given its relatively recent introduction, that SOFR will not be discontinued or fundamentally altered in a manner that is materially adverse to the interests of investors in the Notes. If the manner in which SOFR is calculated, including the manner in which SOFR is calculated, is changed, that change may result in a reduction in the amount of interest payable on the Notes and the trading prices of the Notes. In addition, the Federal Reserve Bank of New York may withdraw, modify or amend the published SOFR data in its sole discretion and without notice. The interest rate for any interest period will not be adjusted for any modifications or amendments to SOFR data that the Federal Reserve Bank of New York may publish after the interest rate for that interest period has been determined.

If the Calculation Agent determines that a Benchmark Transition Event and its related Benchmark Replacement Date have occurred in respect of SOFR, then the interest rate on the Notes will no longer be determined by reference to SOFR, but instead will be determined by reference to a different rate, plus a spread adjustment, which we refer to as a “Benchmark Replacement,” as further described under the caption “The Secured Overnight Financing Rate.”

If a particular Benchmark Replacement or Benchmark Replacement Adjustment cannot be determined, then the next-available Benchmark Replacement or Benchmark Replacement Adjustment will apply. These replacement rates and adjustments may be selected, recommended or formulated by (i) the Relevant Governmental Body (such as the ARRC), (ii) the International Swaps and Derivatives Association (“ISDA”) or (iii) in certain circumstances, the Calculation Agent. In addition, the terms of the Notes expressly authorize the Calculation Agent to make Benchmark Replacement Conforming Changes with respect to, among other things, changes to the definition of “interest period,” the methodology, timing and frequency of determining rates and making payments of interest and other administrative matters. The determination of a Benchmark Replacement, the calculation of the interest rate on the Notes by reference to a Benchmark Replacement (including the application of a Benchmark Replacement Adjustment), any implementation of Benchmark Replacement Conforming Changes and any other determinations, decisions or elections that may be made under the terms of the Notes in connection with a Benchmark Transition Event, could adversely affect the value of the Notes, the return on the Notes and the price at which you can sell such Notes.

In addition, (i) the composition and characteristics of the Benchmark Replacement will not be the same as those of the Reference Rate, the Benchmark Replacement may not be the economic equivalent of the Reference Rate, there can be no assurance that the Benchmark Replacement will perform in the same way as the Reference Rate would have at any time and there is no guarantee that the Benchmark Replacement will be a comparable substitute for the Reference Rate (each of which means that a Benchmark Transition Event could adversely affect the value of the Notes, the return on the Notes and the price at which you may sell the Notes), (ii) any failure of the Benchmark Replacement to gain market acceptance could adversely affect the Notes, (iii) the Benchmark Replacement may have a very limited history and the future performance of the Benchmark Replacement may not be predicted based on historical performance, (iv) the secondary trading market for Notes linked to the Benchmark Replacement may be limited and (v) the administrator of the Benchmark Replacement may make changes that could change the value of the Benchmark Replacement or discontinue the Benchmark Replacement and has no obligation to consider your interests in doing so.

The Calculation Agent will make certain determinations with respect to the Notes, as further described under the caption “The Secured Overnight Financing Rate.” In addition, if a Benchmark Transition Event and its related Benchmark Replacement Date have occurred, the Calculation Agent will make certain determinations with respect to the Notes in the Calculation Agent’s sole discretion as further described under the caption “The Secured Overnight Financing Rate.”

Any determination, decision or election pursuant to the benchmark replacement provisions not made by the Calculation Agent will be made by us. Any of these determinations may adversely affect the value of the Notes, the return on the Notes and the price at which you can sell such Notes. Moreover, certain determinations may require the exercise of discretion and the making of subjective judgments, such as with respect to SOFR, the calculation of interest on the Notes, or the occurrence or non-occurrence of a Benchmark Transition Event and any Benchmark Replacement Conforming Changes. These potentially subjective determinations may adversely affect the value of the Notes, the return on the Notes and the price at which you can sell such Notes. For further information regarding these types of determinations, see “The Secured Overnight Financing Rate.”

The Reference Rate is SOFR, compounded as described in this section. During the floating rate period, interest on the Notes will be determined based on the daily compounding of interest, with the daily SOFR used for the calculation of interest.

The interest payable on the Notes will be calculated by the Calculation Agent on each relevant Interest Determination Date during the floating rate period, as follows. The resulting percentage will be rounded if necessary to the fifth decimal place, with 0.000005 being rounded upwards:

“d_o^” is the number of U.S. Government Securities Business Days in the relevant Observation Period;

“i” is a series of whole numbers from one to d_o, each representing the relevant U.S. Government Securities Business Day in chronological order from, and including, the first U.S. Government Securities Business Day in the relevant Observation Period;

“n_i”, for any U.S. Government Securities Business Day “i”, means the number of calendar days from and including such U.S. Government Securities Business Day “i” up to but excluding the following U.S. Government Securities Business Day;

“SOFR reference rate,” in respect of any U.S. Government Securities Business Day is a reference rate equal to the daily secured overnight financing rate (“SOFR”) for that day, as provided by the Federal Reserve Bank of New York, as the administrator of such rate (or any successor administrator of such rate) on the website of the Federal Reserve Bank of New York currently at http://www.newyorkfed.org, or any successor website of the Federal Reserve Bank of New York (in each case, on or about 5:00 p.m., New York City time, on the U.S. Government Securities Business Day immediately following that day); provided, however, if that rate is not available at or around the indicated time on such date (and a Benchmark Transition Event and its related Benchmark Replacement Date have not occurred), the SOFR reference rate for the applicable U.S. Government Securities Business Day will be the SOFR rate in respect of the last U.S. Government Securities Business Day for which such rate was published on the Federal Reserve Bank of New York’s website;

“SOFR_i” means, in respect of any U.S. Government Securities Business Day “i”, the SOFR reference rate for that day; and

“U.S. Government Securities Business Day” or “USBD” means any day, except for a Saturday, Sunday or a day on which the Securities Industry and Financial Markets Association recommends that the fixed income departments of its members be closed for the entire day for purposes of trading in U.S. government securities.

The “Interest Determination Date” for each Interest Payment Date during the floating rate period will be the second New York business day prior to the applicable Interest Payment Date.

(a) Benchmark Replacement. If the Calculation Agent determines that a Benchmark Transition Event and its related Benchmark Replacement Date have occurred prior to the Reference Time in respect of any determination of the Benchmark on any date applicable to the payments on the Notes, the Benchmark Replacement will replace the then-current Benchmark for all purposes relating to the Notes in respect of such determination on such date and all determinations on all subsequent dates.

(b) Benchmark Replacement Conforming Changes. In connection with the implementation of a Benchmark Replacement, the Calculation Agent will have the right to make Benchmark Replacement Conforming Changes from time to time.

(c) Decisions and Determinations. Any determination, decision or election that may be made by the Calculation Agent or us pursuant to the benchmark replacement provisions described herein, including any determination with respect to tenor, rate or adjustment or of the occurrence or non-occurrence of an event, circumstance or date and any decision to take or refrain from taking any action or any selection:

Any determination, decision or election pursuant to the benchmark replacement provisions not made by the Calculation Agent will be made by us on the basis as described above. The Calculation Agent shall have no liability for not making any such determination, decision or election. In addition, we may designate an entity (which may be our affiliate) to make any determination, decision or election that we have the right to make in connection with the benchmark replacement provisions set forth in this pricing supplement.

“Benchmark” means, initially, the SOFR reference rate, as such term is defined above; provided that if a Benchmark Transition Event and its related Benchmark Replacement Date have occurred with respect to SOFR or the then-current Benchmark, then “Benchmark” means the applicable Benchmark Replacement.

“Benchmark Replacement” means the first alternative set forth in the order below that can be determined by the Calculation Agent as of the Benchmark Replacement Date:

“Benchmark Replacement Adjustment” means the first alternative set forth in the order below that can be determined by the Calculation Agent as of the Benchmark Replacement Date:

“Benchmark Replacement Conforming Changes” means, with respect to any Benchmark Replacement, any technical, administrative or operational changes (including changes to the definitions or interpretations of interest period and Observation Period, the methodology, timing and frequency of determining rates and making payments of interest, the rounding of amounts or tenors, and other administrative matters) that the Calculation Agent decides may be appropriate to reflect the adoption of such Benchmark Replacement in a manner substantially consistent with market practice (or, if the Calculation Agent decides that adoption of any portion of such market practice is not administratively feasible or if the Calculation Agent determines that no market practice for use of the Benchmark Replacement exists or that no market practice for such use is applicable to the Notes offered hereby, in such other manner as the Calculation Agent determines is reasonably practicable).

“Benchmark Replacement Date” means the earliest to occur of the following events with respect to the then-current Benchmark:

For the avoidance of doubt, if the event giving rise to the Benchmark Replacement Date occurs on the same day as, but earlier than, the Reference Time in respect of any determination, the Benchmark Replacement Date will be deemed to have occurred prior to the Reference Time for such determination.

For the avoidance of doubt, for purposes of the definitions of Benchmark Replacement Date and Benchmark Transition Event, references to Benchmark also include any reference rate underlying such Benchmark.

“Benchmark Transition Event” means the occurrence of one or more of the following events with respect to the then-current Benchmark:

“Interest Determination Date” means the date two U.S. Government Securities Business Days before each Interest Payment Date.

“Observation Period” means, in respect of each interest period, the period from, and including, the date two U.S. Government Securities Business Days preceding the first date in such interest period to, but excluding, the date two U.S. Government Securities Business Days preceding the Interest Payment Date for such interest period.

“U.S. Government Securities Business Day” means any day except for a Saturday, a Sunday or a day on which the Securities Industry and Financial Markets Association recommends that the fixed income departments of its members be closed for the entire day for purposes of trading in U.S. government securities.

“Corresponding Tenor” with respect to a Benchmark Replacement means a tenor (including overnight) having approximately the same length (disregarding business day adjustment) as the applicable tenor for the then-current Benchmark.

“Federal Reserve Bank of New York’s Website” means the website of the Federal Reserve Bank of New York, currently at http://www.newyorkfed.org, or any successor source.

“ISDA Definitions” means the 2006 ISDA Definitions published by the International Swaps and Derivatives Association, Inc. or any successor thereto, as amended or supplemented from time to time, or any successor definitional booklet for interest rate derivatives published from time to time.

“ISDA Fallback Adjustment” means the spread adjustment (which may be a positive or negative value or zero) that would apply for derivatives transactions referencing the ISDA Definitions to be determined upon the occurrence of an index cessation event with respect to the Benchmark for the applicable tenor.

“ISDA Fallback Rate” means the rate that would apply for derivatives transactions referencing the ISDA Definitions to be effective upon the occurrence of an index cessation date with respect to the Benchmark for the applicable tenor excluding the applicable ISDA Fallback Adjustment.

“Reference Time” with respect to any determination of the Benchmark means (1) if the Benchmark is SOFR, the time determined as set forth above with respect to SOFR, and (2) if the Benchmark is not SOFR, the time determined by the Calculation Agent in accordance with the Benchmark Replacement Conforming Changes.

“Relevant Governmental Body” means the Federal Reserve Board and/or the Federal Reserve Bank of New York, or a committee officially endorsed or convened by the Federal Reserve Board and/or the Federal Reserve Bank of New York or any successor thereto.

“Unadjusted Benchmark Replacement” means the Benchmark Replacement excluding the Benchmark Replacement Adjustment.

The interest rate and amount of interest to be paid on the Notes for each interest period will be determined by the Calculation Agent. BMO Capital Markets Corp. is currently serving as our Calculation Agent; however, we may change the Calculation Agent at any time without notice, and BMO Capital Markets Corp. may resign as Calculation Agent at any time upon sixty (60) days’ written notice to us. All determinations made by the Calculation Agent shall, in the absence of manifest error, be conclusive for all purposes and binding on Bank of Montreal and the holders of the Notes. So long as SOFR is required to be determined with respect to the Notes, there will at all times be a Calculation Agent. In the event that any then acting Calculation Agent shall be unable or unwilling to act, or that such Calculation Agent shall fail duly to establish SOFR for any interest period, or we propose to remove such Calculation Agent, we shall appoint another Calculation Agent.

The following is a general description of material tax considerations relating to the Notes. It does not purport to be a complete analysis of all tax considerations relating to the Notes. Prospective purchasers of the Notes should consult their tax advisers as to the consequences under the tax laws of the country of which they are resident for tax purposes and the tax laws of Canada and the U.S. of acquiring, holding and disposing of the Notes and receiving payments under the Notes. This summary is based upon the law as in effect on the date of this pricing supplement and is subject to any change in law that may take effect after such date.

In the opinion of Torys LLP, our Canadian federal income tax counsel, the following summary describes the principal Canadian federal income tax considerations generally applicable to a purchaser who acquires from us as the beneficial owner Notes offered by this document, and who, at all relevant times, for purposes of the Income Tax Act (Canada) and the Income Tax Regulations (collectively, the “Tax Act”), (1) is not, and is not deemed to be, resident in Canada, (2) deals at arm’s length with us, with any issuer of common shares acquired on a bail-in conversion and with any transferee resident (or deemed to be resident) in Canada to whom the purchaser disposes of Notes, (3) is not affiliated with us or with any issuer of common shares acquired on a bail-in conversion, (4) does not receive any payment of interest on a Note in respect of a debt or other obligation to pay an amount to a person with whom we do not deal at arm’s length, (5) acquires and holds Notes and any common shares acquired on a bail-in conversion as capital property, (6) does not use or hold Notes or any common shares acquired on a bail-in conversion in a business carried on in Canada and (7) is not a “specified shareholder” of ours as defined in the Tax Act for this purpose or a non-resident person not dealing at arm’s length with such “specified shareholder” (a “Non-Resident Holder”). Special rules, which are not discussed in this summary, may apply to a Non-Resident Holder that is an insurer that carries on an insurance business in Canada and elsewhere.

This summary does not address the possible application of the “hybrid mismatch arrangement” rules contained in proposals to amend the Tax Act released by the Minister of Finance (Canada) on April 29, 2022 (the “Hybrid Mismatch Proposals”) to a Non-Resident Holder (i) that disposes of a Note to a person or entity with which it does not deal at arm’s length or to an entity that is a “specified entity” (as defined in the Hybrid Mismatch Proposals) with respect to the Non-Resident Holder or in respect of which the Non-Resident Holder is a “specified entity”, (ii) that disposes of a Note under, or in connection with, a “structured arrangement” (as defined in such Hybrid Mismatch Proposals), or (iii) in respect of which we are a “specified entity”. Such Non-Resident Holders should consult their own tax advisors.

This summary is based on the current provisions of the Tax Act and on counsel’s understanding of the current administrative policies and assessing practices of the Canada Revenue Agency published in writing prior to the date hereof. This summary takes into account all specific proposals to amend the Tax Act publicly announced by or on behalf of the Minister of Finance (Canada) prior to the date of this document (the “Proposed Amendments”), including the Hybrid Mismatch Proposals, and assumes that all Proposed Amendments will be enacted in the form proposed. However, no assurances can be given that the Proposed Amendments will be enacted as proposed, or at all. This summary does not otherwise take into account or anticipate any changes in law or administrative policy or assessing practice whether by legislative, administrative or judicial action nor does it take into account tax legislation or considerations of any province, territory or foreign jurisdiction, which may differ from those discussed herein.

This summary is of a general nature only and is not, and is not intended to be, legal or tax advice to any particular holder. This summary is not exhaustive of all Canadian federal income tax considerations. Accordingly, prospective purchasers of the Notes should consult their own tax advisors having regard to their own particular circumstances.

Generally, for purposes of the Tax Act, all amounts relating to the acquisition, holding or disposition of a Note and any common shares acquired on a bail-in conversion must generally be expressed in Canadian dollars using the appropriate exchange rate determined in accordance with the detailed rules in the Tax Act in that regard. As a result, the amounts, if any, subject to withholding tax and any capital gains or capital losses realized by a Non-Resident Holder may be affected by fluctuations in the value of the U.S. dollar relative to the Canadian dollar.

Interest paid or credited or deemed to be paid or credited by us on a Note (including amounts on account or in lieu of payment of, or in satisfaction of interest) to a Non-Resident Holder generally will not be subject to Canadian non-resident withholding tax, unless any portion of such interest (other than on a “prescribed obligation,” as defined in the Tax Act for this purpose) is contingent or dependent on the use of or production from property in Canada or is computed by reference to revenue, profit, cash flow, commodity price or any other similar criterion or by reference to dividends paid or payable to shareholders of any class or series of shares of the capital stock of a corporation (“participating debt interest”). The administrative policy of the Canada Revenue Agency is that interest paid on a debt obligation is not subject to Canadian non-resident withholding tax unless, in general, it is reasonable to consider that there is a material connection between the index or formula to which any amount payable under the debt obligation is calculated and the profits of the issuer. With respect to any interest on a Note, or any portion of the principal amount of a Note in excess of the issue price, such interest or principal, as the case may be, paid or credited to a Non-Resident Holder should not be subject to Canadian non-resident withholding tax, except as discussed below.

In the event that a Note held by a Non-Resident Holder is converted to common shares on a bail-in conversion, the amount, if any, by which the fair market value of the common shares received on the conversion exceeds the sum of: (i) the price for which the Note was issued, and (ii) any amount that is paid in respect of accrued and unpaid interest on the Note at the time of the conversion, may be deemed to be interest paid to the Non-Resident Holder. There is a risk that the excess, if any, and the amount of interest described in item (ii) of the preceding sentence could be characterized as “participating debt interest” and be subject to Canadian non-resident withholding tax unless certain exceptions apply. Non-Resident Holders should consult their own tax advisors in this regard.

If an amount of interest paid by us on a Note were to be non-deductible by us in computing our income as a result of the application of proposed subsection 18.4(4) of the Tax Act, such amount of interest would be deemed to have been paid by us as a dividend, and not to have been paid by us as interest, and be subject to Canadian non-resident withholding tax. Proposed subsection 18.4(4) would apply only if a payment of interest by us on a Note constituted the deduction component of a “hybrid mismatch arrangement” under which the payment arises within the meaning of proposed paragraph 18.4(3)(b) of the Tax Act.

No payment of interest by us on a Note should be considered to arise under a “hybrid mismatch arrangement” as no such payment should be considered to arise under or in connection with a “structured arrangement”, both as defined in proposed subsection 18.4(1) of the Tax Act, on the basis that (i) based on pricing data and analysis provided to Torys LLP by us in relation to these Notes, it should not be reasonable to consider that any economic benefit arising from any “deduction/non-inclusion mismatch” as defined in proposed subsection 18.4(6) of the Tax Act is reflected in the pricing of the Notes, and (ii) it should also not be reasonable to consider that the Notes were designed to, directly or indirectly, give rise to any “deduction/non-inclusion mismatch”.

Generally, there are no other taxes on income (including taxable capital gains) payable by a Non-Resident Holder on interest, discount, or premium in respect of a Note or on the proceeds received by a Non-Resident Holder on the disposition of a Note (including redemption, cancellation, purchase or repurchase).

Dividends paid or credited, or deemed under the Act to be paid or credited, to a Non-Resident Holder on common shares of the issuer or any affiliate of the issuer that is a corporation that is resident or deemed to be resident in Canada for purposes of the Tax Act acquired by the Non-Resident Holder on a bail-in conversion will generally be subject to Canadian non-resident withholding tax at the rate of 25% on the gross amount of such dividends unless the rate is reduced under the provisions of an applicable income tax treaty or convention between Canada and the country of residence of the Non-Resident Holder.

A Non-Resident Holder will not be subject to tax under the Tax Act in respect of any capital gain realized on a disposition or deemed disposition of a common share of the issuer or any affiliate of the issuer acquired by the Non-Resident Holder on a bail-in conversion unless such common share is, or is deemed to be, “taxable Canadian property” of the Non-Resident Holder for the purposes of the Tax Act and the Non-Resident Holder is not entitled to an exemption under an applicable income tax convention between Canada and the country in which the Non-Resident Holder is resident.

Generally, common shares of the issuer or any affiliate of the issuer acquired by a Non-Resident Holder on a bail-in conversion will not constitute taxable Canadian property of a Non-Resident Holder at a particular time provided that such common shares are listed at that time on a designated stock exchange (which includes the Toronto Stock Exchange), unless at any particular time during the 60-month period that ends at that time (1) the Non-Resident Holder, persons with whom the Non-Resident Holder does not deal with at arm’s length, and partnerships in which the Non-Resident Holder or persons with whom the Non-Resident Holder does not deal at arm’s length holds a membership interest directly or indirectly through one or more partnerships, or the Non-Resident Holder together with all such persons and partnerships, owned 25% or more of the issued shares of any class or series of the applicable issuer’s capital stock and (2) more than 50% of the fair market value of such common shares was derived directly or indirectly from one or any combination of: (i) real or immovable properties situated in Canada, (ii) “Canadian resource properties” (as defined in the Tax Act), (iii) “timber resource properties” (as defined in the Tax Act), and (iv) options in respect of, or interests in, or for civil law rights in, property in any of the foregoing whether or not the property exists. Notwithstanding the foregoing, in certain circumstances set out in the Tax Act, such common shares could be deemed to be taxable Canadian property. Non-Resident Holders for whom common shares acquired on a bail-in conversion may constitute taxable Canadian property should consult their own tax advisors.

The following section supplements the discussion of U.S. federal income taxation in the accompanying prospectus and prospectus supplement with respect to United States holders (as defined in the accompanying prospectus). It applies only to those United States holders who are not excluded from the discussion of U.S. federal income taxation in the accompanying prospectus. It does not apply to holders subject to special rules including holders subject to Section 451(b) of the Code. For purposes of this discussion, any interest with respect to the Notes, as determined for U.S. federal income tax purposes, will be treated as from sources outside the United States.

You should consult your tax advisor concerning the U.S. federal income tax and other tax consequences of your investment in the Notes in your particular circumstances, including the application of state, local or other tax laws and the possible effects of changes in federal or other tax laws.

In the opinion of our special U.S. tax counsel, Ashurst LLP, based on current market conditions as of the date of this pricing supplement, it would generally be reasonable to treat the Notes as variable rate debt instruments providing for stated interest at a single fixed rate and a qualified floating rate for U.S. federal income tax purposes. If the Notes are treated as providing for stated interest at a single fixed rate and a qualified floating rate, based on current market conditions as of the date of this pricing supplement, we expect the Notes will be issued with more than de minimis original issue discount ("OID") and United States holders will be required to include OID in income for U.S. federal income tax purposes as it accrues, in accordance with a constant yield method based on compounding of interest. Information regarding the determination of OID on the Notes may be obtained by contacting the U.S. Retail Investor Solutions Group via email at investor.solutions@bmo.com or via telephone at 1-877-369-5412.

Please see the discussion in the accompanying prospectus under the section entitled “United States Federal Income Taxation” and specifically under the section entitled “United States Federal Income Taxation—Tax Consequences to Holders of Our Debt Securities—Original Issue Discount—Variable Rate Debt Securities.”

A U.S. holder will generally recognize gain or loss on the sale or retirement of the Notes equal to the difference between the amount realized on the sale or retirement of the Notes, excluding any amounts attributable to accrued but unpaid interest (which will be treated as interest payments), and a U.S. holder's tax basis in the Notes. A U.S. holder will generally have a tax basis in the Notes equal to the U.S. dollar cost of the Notes, adjusted by adding any OID previously included in income with respect to the Notes, and then subtracting any payments on the Notes that are not qualified stated interest payments. A U.S. holder will recognize capital gain or loss upon the sale or retirement of the Notes. Capital gain of a noncorporate U.S. holder is generally taxed at preferential rates where the property is held for more than one year.

Please see the discussion under “United States Federal Income Taxation— Other Considerations —Backup Withholding and Information Reporting” in the accompanying prospectus for a description of the applicability of the backup withholding and information reporting rules to payments made on your Notes.

The Foreign Account Tax Compliance Act imposes a 30% U.S. withholding tax on certain U.S. source payments, including interest (and original issue discount), dividends, other fixed or determinable annual or periodical gain, profits, and income (“Withholdable Payments”), if paid to a foreign financial institution (including amounts paid to a foreign financial institution on behalf of a holder), unless such institution enters into an agreement with the Treasury Department to collect and provide to the Treasury Department substantial information regarding U.S. account holders, including certain account holders that are foreign entities with U.S. owners, with such institution. A Note may constitute an account for these purposes. The legislation also generally imposes a withholding tax of 30% on Withholdable Payments made to a non-financial foreign entity unless such entity provides the withholding agent with a certification that it does not have any substantial U.S. owners or a certification identifying the direct and indirect substantial U.S. owners of the entity.

The U.S. Treasury Department has proposed regulations that eliminate the requirement of the Foreign Account Tax Compliance Act withholding on payments of gross proceeds upon the sale or disposition of financial instruments. The U.S. Treasury Department has indicated that taxpayers may rely on these proposed regulations pending their finalization, and the discussion above assumes the proposed regulations will be finalized in their proposed form with retroactive effect.

If we (or an applicable withholding agent) determine withholding is appropriate with respect to the Notes, we (or such agent) will withhold tax at the applicable statutory rate, and we will not pay any additional amounts in respect of such withholding. Account holders subject to information reporting requirements pursuant to the Foreign Account Tax Compliance Act may include holders of the Notes. Foreign financial institutions and non-financial foreign entities located in jurisdictions that have an intergovernmental agreement with the United States governing the Foreign Account Tax Compliance Act may be subject to different rules. Holders are urged to consult with their own tax advisors regarding the possible implications of this legislation on their investment in the Notes.

A fiduciary of a pension, profit-sharing or other employee benefit plan subject to the U.S. Employee Retirement Income Security Act of 1974, as amended (“ERISA”) (each, a “Plan”), should consider the fiduciary standards of ERISA in the context of the Plan’s particular circumstances before authorizing an investment in the Notes. Among other factors, the fiduciary should consider whether the investment would satisfy the prudence and diversification requirements of ERISA and would be consistent with the documents and instruments governing the Plan, and whether the investment would involve a prohibited transaction under ERISA or the U.S. Internal Revenue Code (the “Code”). Please see the section of the prospectus, “Employee Retirement Income Security Act.”

BMOCM will purchase the Notes from us on the settlement date at prices as specified on the cover page of this pricing supplement. BMOCM has informed us that, as part of its distribution of the Notes, it will reoffer the Notes to other dealers who will sell them at the prices set forth on the cover page of this document. Each such dealer, or further dealer engaged by a dealer to whom BMOCM reoffers the Notes, will purchase the Notes at an agreed discount to the initial offering price.

We own, directly or indirectly, all of the outstanding equity securities of BMOCM, the agent for this offering. In accordance with FINRA Rule 5121, BMOCM may not make sales in this offering to any of its discretionary accounts without the prior written approval of the customer.

You should not construe the offering of the Notes as a recommendation as to the suitability of an investment in the Notes.

BMOCM may, but is not obligated to, make a market in the Notes. BMOCM will determine any secondary market prices that it is prepared to offer in its sole discretion.

We may use this pricing supplement in the initial sale of the Notes. In addition, BMOCM or another of our affiliates may use this pricing supplement in market-making transactions in any Notes after their initial sale. Unless BMOCM or we inform you otherwise in the confirmation of sale, this pricing supplement is being used by BMOCM in a market-making transaction.

Each of BMOCM and any other broker-dealer offering the Notes have not offered, sold or otherwise made available and will not offer, sell or otherwise make available any of the Notes to, any retail investor in the European Economic Area (“EEA”). For these purposes, the expression “offer” includes the communication in any form and by any means of sufficient information on the terms of the offer and the Notes to be offered so as to enable an investor to decide to purchase or subscribe the Notes, and a “retail investor” means a person who is one (or more) of: (a) a retail client, as defined in point (11) of Article 4(1) of Directive (EU) 2014/65 (as amended, “MiFID II”); or (b) a customer, within the meaning of Directive (EU) 2016/97, as amended, where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or (c) not a qualified investor as defined in Regulation (EU) No 2017/1129 (the “Prospectus Regulation”). Consequently, no key information document required by Regulation (EU) No 1286/2014 (as amended, the “PRIIPs Regulation”) for offering or selling the Notes or otherwise making them available to retail investors in the EEA has been prepared, and therefore, offering or selling the Notes or otherwise making them available to any retail investor in the EEA may be unlawful under the PRIIPs Regulation.

Each of BMOCM and any other broker-dealer offering the Notes have not offered, sold or otherwise made available and will not offer, sell or otherwise make available any of the Notes to, any retail investor in the United Kingdom. For these purposes, a retail investor means a person who is one (or more) of: (i) a retail client, as defined in point (8) of Article 2 of Regulation (EU) No 2017/565 as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018; or (ii) a customer within the meaning of the provisions of the Financial Services and Markets Act 2000 (the "FSMA") and any rules or regulations made under the FSMA to implement Directive (EU) 2016/97, where that customer would not qualify as a professional client, as defined in point (8) of Article 2(1) of Regulation (EU) No 600/2014 as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018. Consequently, no key information document required by Regulation (EU) No 1286/2014 as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018 (the "UK PRIIPs Regulation") for offering or selling the Notes or otherwise making them available to retail investors in the UK has been prepared and therefore offering or selling the Notes or otherwise making them available to any retail investor in the UK may be unlawful under the UK PRIIPs Regulation.

In the opinion of Osler, Hoskin & Harcourt LLP, the issue and sale of the Notes has been duly authorized by all necessary corporate action of the Bank in conformity with the senior indenture, and when this pricing supplement has been attached to, and duly notated on, the master note that represents the Notes the Notes will have been validly executed, authenticated, issued and delivered, to the extent that validity of the Notes is a matter governed by the laws of the Province of Ontario and the federal laws of Canada applicable therein and will be valid obligations of the Bank, subject to the following limitations (i) the enforceability of the senior indenture may be limited by the Canada Deposit Insurance Corporation Act (Canada), the Winding-up and Restructuring Act (Canada) and bankruptcy, insolvency, reorganization, receivership, moratorium, arrangement or winding-up laws or other similar laws affecting the enforcement of creditors’ rights generally; (ii) the enforceability of the senior indenture may be limited by equitable principles, including the principle that equitable remedies such as specific performance and injunction may only be granted in the discretion of a court of competent jurisdiction; (iii) pursuant to the Currency Act (Canada) a judgment by a Canadian court must be awarded in Canadian currency and that such judgment may be based on a rate of exchange in existence on a day other than the day of payment; and (iv) the enforceability of the senior indenture will be subject to the limitations contained in the Limitations Act, 2002 (Ontario), and such counsel expresses no opinion as to whether a court may find any provision of the senior indenture to be unenforceable as an attempt to vary or exclude a limitation period under that Act. This opinion is given as of the date hereof and is limited to the laws of the Provinces of Ontario and the federal laws of Canada applicable therein. In addition, this opinion is subject to certain assumptions about (i) the Trustees’ authorization, execution and delivery of the senior indenture, (ii) the genuineness of signatures and (iii) certain other matters, all as stated in the letter of such counsel dated May 26, 2022, which has been filed as Exhibit 5.3 to Bank of Montreal’s Form 6-K filed with the SEC and dated May 26, 2022.

In the opinion of Ashurst LLP, when the pricing supplement has been attached to, and duly notated on, the master note that represents the Notes, the Notes will be executed, authenticated, issued and delivered, and the Notes have been issued and sold as contemplated by the prospectus supplement and the prospectus, the Notes will be valid, binding and enforceable obligations of the Bank, entitled to the benefits of the senior indenture, subject to applicable bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and similar laws of general applicability relating to or affecting creditors’ rights and subject to general principles of equity, public policy considerations and the discretion of the court before which any suit or proceeding may be brought. This opinion is given as of the date hereof and is limited to the laws of the State of New York. This opinion is subject to customary assumptions about the Trustee’s authorization, execution and delivery of the senior indenture and the genuineness of signatures and to such counsel’s reliance on the Bank and other sources as to certain factual matters, all as stated in the legal opinion dated May 26, 2022, which has been filed as Exhibit 5.4 to the Bank’s Form 6-K dated May 26, 2022.

Issuer:	Bank of Montreal
Title of Notes:	Fixed to SOFR Floating Rate Notes, due January 9, 2026
Trade Date:	January 5, 2024
Settlement Date (Original Issue Date):	January 9, 2024
Stated Maturity:	January 9, 2026
Principal Amount (in Specified Currency):	US$58,000,000; Minimum Denomination: US$1,000 and integral multiples of US$1,000 in excess of $1,000.
Original Public Offering Price (Issue Price):	100%
Interest Rate per Annum:	The Notes will bear interest at the following rates: · From and including January 9, 2024 to but excluding July 9, 2024: 5.50% per annum · From and including July 9, 2024 to but excluding January 9, 2026 (the “floating rate period”): a per annum rate equal to SOFR (as defined below), compounded as described in this document (the “Reference Rate”), plus a spread of 0.95% (the "Spread"), subject to the Interest Rate Floor. Interest on the Notes will accrue on the basis of a 360-day year of twelve 30-day months.
	The Reference Rate will be determined by the Calculation Agent as described below in the section “The Secured Overnight Financing Rate.”
Interest Rate Floor:	0.75% per annum
Interest Payment Periods:	Quarterly
Interest Payment Dates:	Interest is payable quarterly in arrears on January 9, April 9, July 9 and October 9 of each year, commencing April 9, 2024. See “Specific Terms of the Notes — Interest” below.
Payment at Maturity:	Subject to our credit risk, you will receive at maturity the principal amount and the final interest payment.
Calculation Agent:	BMO Capital Markets Corp.
Clearance and Settlement:	DTC global (including through its indirect participants Euroclear and Clearstream, as described under “Description of Debt Securities We May Offer —Legal Ownership and Book-Entry Issuance” in the accompanying prospectus).
CUSIP No.:	06375MGN9
Optional Redemption Provision:	Not applicable.
Bail-inable Notes:	The Notes will be bail-inable notes (as defined in the accompanying prospectus supplement and subject to conversion in whole or in part — by means of a transaction or series of transactions and in one or more steps — into common shares of Bank of Montreal or any of its affiliates under subsection 39.2(2.3) of the Canada Deposit Insurance Corporation Act (the “CDIC Act”) and to variation or extinguishment in consequence, and subject to the application of the laws of the Province of Ontario and the federal laws of Canada applicable therein in respect of the operation of the CDIC Act with respect to the Notes.