BANK OF MONTREAL /CAN/ (BMO) SEC Filings, May 4, 2026

Bank of Montreal priced US$3,756,000 of Senior Medium-Term Notes, Series K — Callable Barrier Notes with Contingent Coupons due April 05, 2028, linked to the least performing of the S&P 500®, Russell 2000® and the Nasdaq-100 Technology Sector Index. Pricing Date was April 30, 2026 with Settlement on May 05, 2026 and Valuation Date on March 31, 2028. Notes pay a Contingent Coupon of 1.0667% per month (approximately 12.80% per annum) only if each reference asset on an Observation Date is at or above its Coupon Barrier Level (70% of initial level). The issuer may call the notes beginning November 02, 2026. At maturity investors receive principal unless a Trigger Event occurred, in which case payment equals $1,000 + $1,000 × Percentage Change of the Least Performing Reference Asset, which could be less than principal or zero. The estimated initial value was $991.85 per $1,000.

Bank of Montreal is offering US$4,534,000 of Senior Medium‑Term Notes, Series K — Autocallable Barrier Notes with Contingent Coupons due April 05, 2028, linked to the least performing of the Russell 2000®, the Dow Jones Industrial Average® and the Nasdaq‑100 Technology Sector Index. The notes pay a contingent coupon of 0.775% per month (approximately 9.30% per annum) if on each Observation Date all reference assets are at or above their Coupon Barrier Levels (each set at 60.00% of the Initial Level). The notes are autocallable beginning on November 02, 2026 if all reference assets are at or above their Call Level (100% of Initial Level). If not redeemed, at maturity investors receive $1,000 per $1,000 principal unless a Trigger Event occurs (any Reference Asset final level below its Trigger Level of 60.00% of Initial Level), in which case the maturity payment equals $1,000 plus the Percentage Change of the least performing Reference Asset, which may be less than principal, possibly zero. Price to public is 100% and the estimated initial value on the Pricing Date was $983.98 per $1,000.

Bank of Montreal (BMO) priced US$4,039,000 Senior Medium-Term Notes, Series K — Autocallable Barrier Notes with Contingent Coupons due May 06, 2030, linked to the least performing of the S&P 500®, Russell 2000® and Nasdaq-100 Technology Sector Index. The notes pay monthly contingent coupons of 0.775% (approximately 9.30% per annum) when each reference asset is at or above its 60.00% Coupon Barrier on observation dates. Beginning May 03, 2027, the notes may auto-redeem if each reference asset is at or above its Call Level (100% of initial level) on an Observation Date. At maturity (if not auto-redeemed), holders receive $1,000 per $1,000 unless a Trigger Event occurs; if a Trigger Event occurs the payment equals $1,000 plus the percentage change of the least performing reference asset, which may be less than principal and could be zero.

Bank of Montreal (BMO) priced US$1,982,000 of Senior Medium-Term Notes, Series K — autocallable barrier notes linked to the VanEck Semiconductor ETF (SMH) and the Dow Jones Industrial Average (INDU).

The notes pay a contingent coupon of 1.1708% per month (approximately 14.05% per annum) when each reference asset on an Observation Date is at or above its coupon barrier. The notes may autocall beginning on April 30, 2027 if each reference asset is at or above its call level. If the notes are not called, maturity payment on May 05, 2028 depends on the least performing reference asset; a Trigger Event occurs if any final level is below its Trigger Level, in which case repayment equals $1,000 × (Final/Initial) for the least performing asset.

Bank of Montreal priced a structured note issuance: US$271,000 aggregate principal of Senior Medium-Term Notes, Series K — Autocallable Barrier Notes with Step Up Call Amount due May 06, 2030, linked to the S&P 500®, Russell 2000® and Nasdaq-100 Technology Sector indices. The notes pay periodic automatic-call opportunities beginning May 06, 2027, with Call Amounts shown per observation date and a final payoff at maturity tied to the performance of the least performing reference asset. Pricing Date was April 30, 2026, settlement on May 05, 2026, and Valuation Date on May 01, 2030. The estimated initial value on the Pricing Date was $984.26 per $1,000 principal amount. The public offering price was 100% of principal, with an approximately 0.3662% agent commission and proceeds to Bank of Montreal of $270,007.50.

Bank of Montreal (BMO) priced a US$500,000 offering of Senior Medium-Term Notes, Series K: Autocallable Barrier Notes with Contingent Coupons due May 07, 2029. The notes link to the least performing of the S&P 500®, NASDAQ-100® and Russell 2000® and pay a contingent coupon of 0.6875% per month (approximately 8.25% per annum) when each reference asset is at or above its coupon barrier on observation dates. The notes are automatically redeemable beginning on Nov 04, 2026 if all reference assets close above their call levels on an Observation Date. At maturity, if a Trigger Event occurs (any reference asset below its 75.00% Trigger Level on the Valuation Date), the cash payment is reduced proportionally to the percentage change of the least performing reference asset. The pricing supplement states an estimated initial value of $958.99 per $1,000 on the Pricing Date and discloses distribution fees, conflicts of interest, jurisdictional offering restrictions and tax characterization guidance.

Bank of Montreal priced US$240,000 of Senior Medium-Term Autocallable Barrier Notes, Series K, linked to the least performing of the S&P 500, Russell 2000 and the Dow Jones Industrial Average. The notes pay a contingent coupon of 0.8125% per month if each reference asset on an Observation Date is at or above its 75.00% Coupon Barrier Level. The notes mature on May 07, 2029 and may be automatically redeemed beginning May 04, 2027 if each reference asset is at or above its Call Level (100% of initial). Estimated initial value was $974.76 per $1,000 on the Pricing Date.

Bank of Montreal (BMO) priced Senior Medium-Term Notes, Series K — equity-linked, market‑linked securities due May 3, 2027. The securities have a $1,000 face amount, an initial estimated value of $954.08 per security and an original offering price of $1,000 per security.

The notes pay a contingent coupon of 6.21% per annum monthly if the lowest performing Underlier meets its 50% coupon threshold on each calculation day (monthly 28th, May 2026–Apr 28, 2027; final calc. day April 28, 2027). They are auto‑callable July 2026–March 2027 if the lowest performing Underlier closes at or above its starting value. At maturity you may receive the face amount or a reduced payment equal to the lowest performing Underlier’s performance factor × $1,000; downside threshold = 50% of starting value.

Bank of Montreal is issuing US$1,545,000 of Senior Medium-Term Market Linked Notes, Series K due May 05, 2028, linked to the least performing of the S&P 500® and the Russell 2000® Index. The notes pay no periodic interest and return at maturity either the principal or an upside participation subject to a Maximum Redemption Amount of $1,150.00 per $1,000 principal (a 15.00% capped return). If the Least Performing Reference Asset finishes below or equal to its Initial Level, investors receive only principal. The Upside Leverage Factor is 100.00%. The public offering price was 100% (aggregate $1,545,000) and the issuer’s estimated initial value was $980.07 per $1,000 principal on the Pricing Date. All payments are subject to the credit risk of Bank of Montreal and the notes will not be exchange-listed.