Citigroup Inc. 424B Filings

Citigroup Inc. (C) is offering unsecured senior Callable Range Accrual Notes linked to the 10-year constant maturity Treasury (CMT) rate, maturing on November 20, 2035. Each note has a $1,000 principal amount and pays variable interest on quarterly dates starting in February 2026.

On each interest payment date, the coupon is based on a contingent rate of 8.30% per annum, multiplied by the fraction of days in the period when the 10-year CMT rate is between 0.00% and 5.00%. If the CMT rate is outside this range for all days in an accrual period, the coupon for that period is 0.00%. At maturity, investors receive $1,000 per note plus any accrued interest, unless the notes are redeemed earlier.

Citigroup may redeem the notes in whole at par plus accrued interest on any interest payment date on or after November 20, 2026. The notes will not be listed on an exchange, and the estimated value on the pricing date is $955.90 per note, below the $1,000 issue price. The notes are intended to qualify as TLAC-eligible, involve complex U.S. tax treatment (intended as contingent payment debt instruments with a comparable yield of 5.657%), and are described as significantly riskier than conventional debt.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering Bearish Market-Linked Securities tied to the better performer of the Nasdaq-100 Index® and the S&P 500® Index, maturing on August 26, 2027. Each security has a $1,000 stated principal amount and pays at maturity based on the final value of the highest performing index.

If that index is below its initial value, investors receive $1,000 plus its absolute decline, with a maximum return of $305 per security (30.50% of principal). If the index rises, investors lose in line with its gain but no more than $30 per security, for a minimum payment of $970 (97% of principal). The securities are sold at $1,000 with a $20 underwriting fee, so the issuer receives $980 per security, and the estimated value on the pricing date is expected to be at least $917.50.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering unsecured autocallable barrier securities linked to the S&P 500® Index, issued in $1,000 denominations and due in December 2030. The notes pay no interest and will be automatically redeemed, at a premium to principal, if on any scheduled valuation date before maturity the index closes at or above its initial level, with premiums of 8.60%, 17.20%, 25.80% or 34.40% depending on the call date. If held to maturity and not called, investors receive principal plus the greater of a 25.00% premium or 100% participation in any index gain when the final index level is at least its initial level.

If the index is below its initial level but at or above 75% of that level at maturity, investors receive only their $1,000 principal. If it finishes below the 75% barrier, repayment is reduced one-for-one with the index loss, potentially to zero. The notes are not listed, are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc., and have an estimated initial value of at least $920 per security, below the $1,000 issue price, reflecting structuring and hedging costs and an underwriting fee of up to $23.50 per note.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering $1,000-denomination autocallable barrier securities linked to the EURO STOXX 50® Index, maturing in December 2030. The notes pay no interest and may be automatically redeemed early if, on specified annual valuation dates, the index closes at or above its initial level, in which case investors receive $1,000 plus a fixed premium that rises from 10.80% in 2026 to 43.20% in 2029. If held to maturity and not called, investors receive $1,000 plus the greater of a 30.00% premium or 100% participation in index gains when the final index level is at or above the initial level. Principal is only protected down to a barrier set at 75% of the initial index level; below that, losses match the index decline, up to a total loss of principal. The estimated value on the pricing date is expected to be at least $918 per note, below the $1,000 issue price, and the notes will not be listed on any exchange, exposing investors to liquidity and issuer credit risk.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering unsecured autocallable equity-linked securities tied to Fiserv, Inc. (FISV) maturing in November 2027. Each security has a stated principal amount of $1,000 and pays monthly coupons at an annualized rate of at least 11.55%, with the exact rate set on the pricing date.

The notes can be automatically redeemed on specified dates starting in November 2026 if Fiserv’s closing share price is at or above the initial value of $62.70, returning $1,000 plus the coupon for that period. If the notes are not called, principal repayment at maturity depends on Fiserv’s price on the final valuation date. Full principal is repaid only if the final value is at or above the final barrier of $34.485, which is 55.00% of the initial value.

If Fiserv’s final value falls below the barrier, repayment is reduced one-for-one with the stock’s decline, and investors can lose up to their entire principal, aside from the final coupon. The securities are not listed, may have limited liquidity, and all payments are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc. The expected estimated value on the pricing date is at least $911.00 per $1,000 security, below the issue price, reflecting structuring and hedging costs.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering autocallable unsecured notes linked to the worst performer of the Dow Jones Industrial Average, the Russell 2000 Index and the S&P 500 Index, in an aggregate amount of $4,503,000. Each security has a stated principal of $1,000, pays no interest and may be automatically redeemed on scheduled valuation dates through November 2030 if the worst performing index is at or above 90% of its initial level, triggering a fixed premium that steps up from 7.30% to 36.50% of principal over time. If not called, at maturity investors receive principal plus the final premium if the worst index is at or above its autocall barrier, only principal if it is between 75% and 90% of its initial level, and a loss matching the index’s decline on a 1-for-1 basis if it finishes below 75%, which can result in a total loss of invested principal. The securities are not listed, have limited liquidity, and all payments depend on the credit of Citigroup Global Markets Holdings Inc. and Citigroup Inc.

Citigroup Global Markets Holdings Inc., a wholly owned subsidiary of Citigroup Inc., is offering fixed rate notes due November 18, 2026, fully and unconditionally guaranteed by Citigroup Inc. Each note has a stated principal amount of $1,000 and pays a fixed annual interest rate of 3.80%, using a 30/360 day count convention, with principal plus accrued interest paid at maturity.

The notes will not be listed on any securities exchange and may be harder to sell before maturity. Citigroup Global Markets Inc., acting as principal underwriter, may buy and sell the notes in the secondary market and will initially reflect a temporary upward pricing adjustment for about three months after issuance, tied to expected hedging profits. Net proceeds will be used for general corporate purposes and to hedge the issuer’s obligations through derivatives transactions by its affiliates.

The notes are not bank deposits and are not insured by the FDIC or any government agency. They are subject to investment risks, including liquidity and market value risk, as described under “Risk Factors,” and are subject to selling restrictions in the European Economic Area, the United Kingdom, and Canada. Legal opinions from Davis Polk & Wardwell LLP and internal Citigroup counsel confirm the notes and guarantee are valid and binding obligations under applicable New York and Delaware law, subject to customary limitations.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering autocallable Phoenix securities linked to the common stock of Broadcom Inc. (AVGO), maturing in December 2026. Each security has a stated principal amount of $1,000 and pays a contingent coupon of 4.9375% of principal on each coupon date if Broadcom’s share price is at or above a coupon barrier set at 75% of the initial share price. Missed coupons can be “caught up” later if the barrier is met.

The notes may be automatically redeemed on any interim valuation date if Broadcom’s closing price is at or above the initial share price, returning $1,000 plus the applicable coupon. If the notes are not called and the final share price is at or above a 75% final barrier, investors receive $1,000 plus the final coupon. If the final share price falls below the barrier, repayment is reduced according to a formula with a 25% buffer and a buffer rate of about 133.333%, and investors can lose some or all of principal.

The securities will not be listed on any exchange. The issue price is $1,000 per security, with proceeds of $990 to the issuer and an estimated value of at least $935 per security. The product involves complex risks, including issuer and guarantor credit risk, market risk tied to Broadcom’s shares, potential illiquidity, and uncertain U.S. federal tax and withholding treatment, particularly for non-U.S. investors.

Citigroup Inc. is offering Medium-Term Senior Notes, Series G, which are callable fixed rate notes due November 28, 2035. Each note has a stated principal amount of $1,000 and pays a fixed annual interest rate of 4.90%, with interest paid semi-annually on May 28 and November 28, starting May 28, 2026, using a 30/360 day-count convention.

Beginning on May 28, 2027, Citigroup may redeem the notes in whole, but not in part, on specified quarterly redemption dates at 100% of principal plus accrued interest. The notes are senior unsecured obligations intended to qualify as eligible debt under the Federal Reserve’s TLAC rules, meaning in a Citigroup bankruptcy losses would be borne first by shareholders and then by unsecured creditors, including holders of these notes.

The issue price is generally $1,000 per note, but may range from $975 to $1,000 for eligible institutional and fee-based advisory accounts. Citigroup Global Markets Inc., an affiliate, acts as underwriter and may receive up to $25 per note as an underwriting fee. The notes are not bank deposits, are not FDIC insured, will not be listed on any exchange, and may be assumed by a wholly owned subsidiary subject to Citigroup’s full and unconditional guarantee.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc. (C), filed a preliminary pricing supplement for Autocallable Contingent Coupon Equity Linked Securities tied to the worst performer of the Nasdaq‑100, Russell 2000, and S&P 500, due November 24, 2028.

The notes pay a contingent coupon of ~10.00%–11.00% per annum (0.8333%–0.9166% per month) if, on a valuation date, the worst-performing index is at or above its 70% coupon barrier. They may be automatically called on specified dates starting in November 2026 if the worst performer is at or above its initial level, returning $1,000 plus the coupon. If not called, at maturity holders receive $1,000 if the worst performer is at or above its 70% final barrier; otherwise repayment declines one-for-one with the worst index’s loss, potentially to zero.

The notes are unsecured, unlisted, and subject to the credit risk of the issuer and guarantor. Issue price: $1,000 per security; underwriting fee: up to $6; per-security proceeds: $994. The issuer expects an estimated value of at least $933.50 per security on the pricing date. A broad risk summary highlights barrier risk, worst-of structure, autocall truncation of coupons, market volatility, liquidity limits, and tax uncertainty.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering unsecured autocallable contingent coupon equity-linked securities tied to the worst performer of the S&P 500 Dynamic Participation Index and the SPDR® S&P® Biotech ETF, maturing on November 15, 2028.

Each $1,000 security pays a 0.5833% monthly contingent coupon (about 7.00% per annum) only if, on the relevant valuation date, the worst-performing underlying is at or above 65% of its initial value. The notes may be automatically called from November 10, 2026 onward if the worst performer is at or above its initial value, in which case investors receive $1,000 plus the coupon.

If not called, principal is protected only down to a 20% buffer. If the worst-performing underlying falls more than 20% at final valuation, repayment is reduced 1% for each additional 1% drop, potentially down to zero. The securities are not listed, are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc., and had an estimated value of $946.10 per $1,000 at pricing, below the issue price.

Citigroup Global Markets Holdings Inc. filed a 424(b)(2) preliminary pricing supplement for Autocallable Securities linked to the S&P 500 Futures 35% Edge Volatility 6% Decrement Index (USD) ER, due November 29, 2035, fully and unconditionally guaranteed by Citigroup Inc.

The notes are unsecured, pay no interest, and may be automatically redeemed after any valuation date if the underlying closes at or above its initial level, returning $1,000 per security plus a fixed premium. Premiums range from 18.90% (first call window) up to 189.00% (final valuation date). If not called, at maturity investors receive $1,000 plus the applicable premium if the final value is at least the 60% barrier. Otherwise, repayment is reduced 1-to-1 with the underlying’s decline from the initial level.

Per-security economics: Issue price $1,000; underwriting fee $50; proceeds to issuer $950. The issuer currently expects an estimated value ≥ $850 per security on the pricing date. The notes will not be listed and are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc. The underlying employs up to 500% leverage with a 35% volatility target and a 6% per‑annum decrement, which can materially drag performance.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering unsecured medium-term senior notes called autocallable contingent coupon equity-linked securities tied to the S&P 500 Futures 35% Edge Volatility 6% Decrement Index (USD) ER, maturing on November 29, 2035 unless called earlier.

Each security has a $1,000 stated principal amount and pays a contingent coupon of 2.60% per quarter (annualized 10.40%) only if, on the relevant valuation date, the index is at or above a coupon barrier equal to 50% of its initial level. The same 50% level is the final barrier: if the final index value is at or above this barrier and the notes are not called, investors receive $1,000 back; if it is below, repayment is reduced one-for-one with the index loss and can fall to zero.

The notes may be automatically called on scheduled dates starting in November 2026 if the index is at or above its initial level, in which case holders receive $1,000 plus the applicable coupon and no further payments. The issuer expects the estimated value on the pricing date to be at least $850 per security versus a $1,000 issue price, with underwriter proceeds of $950 per security. The complex, leveraged, decrement index and long maturity make these securities significantly riskier than conventional debt.

Citigroup Global Markets Holdings Inc., fully guaranteed by Citigroup Inc., is offering unsecured autocallable notes linked to the worst performer of three ETFs: the Energy Select Sector SPDR Fund (XLE), SPDR S&P Regional Banking ETF (KRE) and VanEck Semiconductor ETF (SMH), maturing November 13, 2026.

Each note has a $1,000 stated principal amount. The notes may be automatically called on quarterly valuation dates starting February 9, 2026 if the worst-performing ETF is at or above 90% of its initial value, paying $1,000 plus a fixed premium that steps up from 2.4375% to 9.75% by the final valuation date. If not called, investors receive at maturity either principal plus the final premium (if the worst ETF is at or above 90%), principal only (if it is between 60% and 90%), or suffer 1‑for‑1 downside below 60%, potentially losing their entire investment.

The notes pay no interest, are not listed, and all payments depend on the credit of Citigroup Global Markets Holdings Inc. and Citigroup Inc. The issue price is $1,000 per note, with an estimated value of $955.30 and an underwriting fee of up to $22.25 per note.

Citigroup Global Markets Holdings Inc. is offering autocallable contingent coupon equity-linked securities tied to the Nasdaq-100 Futures 35% Edge Volatility 6% Decrement Index ER, fully and unconditionally guaranteed by Citigroup Inc.

Each $1,000 security pays a 1.425% monthly contingent coupon (about 17.10% per annum) if the underlying on the prior valuation date is at or above the coupon barrier of 70% of the initial value. If below, no coupon is paid. Unless earlier redeemed, the securities mature on December 16, 2032, with monthly valuation dates on the 11th, starting January 2026. During the autocall period from December 11, 2026 until just before the final valuation date, the notes are automatically redeemed at $1,000 per security if the closing value is at or above the initial value on any trading day.

At maturity, if not called: you receive $1,000 if the final value is at or above the final barrier of 60%; otherwise, $1,000 plus $1,000 × underlying return, which can result in substantial loss. Issue price is $1,000, underwriting fee $20, and proceeds to issuer $980 per security. The estimated value on the pricing date is expected to be at least $850 per security. The securities will not be listed.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering unsecured, autocallable securities linked to the worst performing of the Energy Select Sector SPDR Fund (XLE), the Nasdaq‑100 Index and the Russell 2000 Index. The notes are issued at $1,000 per security (total issue price $2,857,000), pay no interest, are not listed, and mature on November 8, 2030, unless called earlier.

The notes auto‑redeem for $1,000 plus a premium if, on any observation date, the worst performer is at or above its initial value; scheduled premiums step from 13.60% (November 6, 2026) up to 68.00% (November 5, 2030). If not redeemed: you receive $1,000 + final premium if the worst performer is at or above its initial value; $1,000 if it is below initial but at or above the 70% barrier; otherwise, you lose 1% for each 1% the worst performer falls from its initial value. Underwriting fee is $40.75 per security (proceeds to issuer $959.25 per security). The estimated value is $911.10 per security, reflecting selling, structuring and hedging costs and the issuer’s internal funding rate. All payments are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., filed a 424(b)(2) preliminary pricing supplement for Autocallable Contingent Coupon Equity Linked Securities linked to the worst performer of the DJIA, Russell 2000, and S&P 500, due November 29, 2030.

The notes pay a contingent coupon of 0.5833% monthly (~7.00% per annum) only if, on each valuation date, the worst-performing index closes at or above its coupon barrier set at 75.00% of its initial value. They are autocallable at $1,000 plus the coupon on scheduled potential autocall dates beginning November 25, 2026 if the worst performer is at or above its initial value.

If not called, maturity return depends solely on the worst performer: you receive $1,000 if it is at or above its final barrier (75.00% of initial); otherwise, you are exposed one-for-one to downside and could lose your entire investment. Denomination is $1,000 per note; the estimated value on the pricing date is expected to be at least $896.50. The issue price allocates up to $41.00 per note as underwriting fees, with proceeds to issuer of $959.00 per note under the maximum fee. The notes will not be listed and are subject to the credit risk of the issuer and guarantor.

Citigroup Global Markets Holdings Inc., fully guaranteed by Citigroup Inc., filed a 424(b)(2) preliminary pricing supplement for Autocallable Contingent Coupon Equity Linked Securities linked to the worst of the Russell 2000 and S&P 500, due November 12, 2027.

The notes pay a contingent coupon of at least 9.15% per annum (0.7625% per month) if, on the relevant valuation date, the worst-performing index is at or above its coupon barrier (80% of initial). Missed coupons may be paid later if the barrier is met on a subsequent date. Early redemption can occur on scheduled autocall dates starting May 6, 2026 if the worst performer is at or above its initial level, returning $1,000 plus the coupon.

At maturity, if not called, investors receive $1,000 if the worst performer is at or above its final buffer (80%); otherwise, principal is reduced using a 20% buffer and a 1.25 buffer rate. The notes are unsecured, not listed, and subject to the credit risk of the issuer and guarantor. Issue price is $1,000 with an underwriting fee of up to $4 per note; the estimated value on pricing is expected to be at least $939.

Citigroup Global Markets Holdings Inc. filed a preliminary 424(b)(2) pricing supplement for Autocallable Contingent Coupon Equity Linked Securities linked to the worst performing of the Russell 2000 and S&P 500, due May 24, 2027, fully and unconditionally guaranteed by Citigroup Inc.

The notes pay a contingent coupon of at least 0.725% per period (≥8.70% per annum) only if the worst performing index on the prior valuation date is at or above its coupon barrier (70% of its initial value). They may be automatically called beginning August 19, 2026 if the worst performer is at or above its initial value, returning $1,000 plus the related coupon. If not called, at maturity investors receive $1,000 if the worst performer is at or above its final barrier (70% of initial); otherwise, repayment is reduced one-for-one with the index decline, potentially to zero.

The notes are unsecured, subject to the credit risk of the issuer and guarantor, and will not be listed. The issue price is $1,000 per security; the underwriting fee is up to $9.00; and the issuer’s estimated value on the pricing date is expected to be at least $933.50 per security.

Citigroup Global Markets Holdings Inc., fully guaranteed by Citigroup Inc., filed a preliminary 424(b)(2) for Autocallable Contingent Coupon Equity Linked Securities tied to Amazon.com, Inc., due May 24, 2027. Each note has a $1,000 stated principal amount and may pay a contingent coupon of at least 10.45% per annum (paid if the underlying closes at or above the coupon barrier on the prior valuation date).

The notes can be automatically called on specified dates starting May 19, 2026 if AMZN’s closing value is at least the initial value, returning $1,000 plus the coupon for that period. If not called, at maturity holders receive $1,000 if the final value is at least the 70% final barrier; otherwise, they receive a fixed number of AMZN shares (or cash equivalent) that can be worth substantially less, including zero, and no coupon at maturity.

The securities are unsecured and subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc., will not be listed, and may have limited liquidity. The estimated value on the pricing date is expected to be at least $919 per security. Underwriting fee is up to $24 per security; per-security proceeds to issuer are $976.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc. (C), filed a preliminary 424(b)(2) pricing supplement for Callable Contingent Coupon Equity Linked Securities due November 17, 2028, linked to the worst performer of the Dow Jones Industrial Average, Energy Select Sector SPDR (XLE) and Invesco S&P 500 Equal Weight ETF (RSP). Coupons are contingent at at least 0.7667% per month (approximately 9.20% per annum) if the worst performer is at or above its 70% coupon barrier on the relevant valuation date.

The notes may be called on specified dates; if not called, principal is repaid at par only if the worst performer on the final valuation date is at or above its 60% final barrier, otherwise repayment declines one-for-one with the underlying’s loss. Issue price is $1,000 per security, with an underwriting fee up to $7.50 and per-security proceeds of $992.50. The issuer expects an estimated value of at least $910 on the pricing date. The securities will not be listed and are subject to the credit risk of the issuer and guarantor.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc. (C), is offering Autocallable Contingent Coupon Equity Linked Securities linked to the worst of the Dow Jones Industrial Average, the Russell 2000 Index and the S&P 500 Index. The notes target a contingent coupon of at least 0.55% per period (at least 6.60% per annum) when the worst-performing index on a valuation date is at or above its coupon barrier, set at 70% of its initial value.

The notes may be automatically redeemed on specified potential autocall dates if the worst-performing index is at or above its initial value, returning $1,000 plus the coupon. If not called, they mature on November 22, 2030. At maturity, holders receive $1,000 if the worst-performing index is at or above its 70% final barrier; otherwise, repayment is reduced one-for-one with the index decline, potentially to zero.

Each $1,000 note carries an underwriting fee of $41 and initial proceeds to issuer of $959; the estimated value on pricing is expected to be at least $897 per note. The securities will not be listed and all payments are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc. (C), is offering unsecured Medium‑Term Senior Notes via a 424(b)(2) pricing supplement: Autocallable Contingent Coupon Equity Linked Securities tied to the worst performer of the Nasdaq‑100, Russell 2000, and S&P 500, due November 10, 2027.

The notes pay a contingent coupon of at least 1.1667% per period (≈ at least 14.00% per annum) only when the worst performing index closes at or above its coupon barrier (80% of its initial value). Principal is protected only if, at final valuation, the worst performer is at or above its final barrier (75% of initial); otherwise repayment is reduced one‑for‑one with the decline of that index.

The notes may be automatically called on scheduled dates if the worst performer is at or above its initial value, returning $1,000 plus the coupon. Issue price is $1,000 per security, underwriting fee up to $4, and per‑security proceeds to the issuer $996. The issuer expects an estimated value of at least $937 per security on the pricing date. The securities will not be listed and are subject to the credit risk of the issuer and guarantor.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering Autocallable Contingent Coupon Equity Linked Securities linked to the worst performer of the Nasdaq‑100, Russell 2000, and S&P 500, maturing on November 12, 2027. Each security has a $1,000 stated principal amount and may pay a contingent coupon of 11.10%–11.25% per annum, if on each valuation date the worst-performing index is at or above its coupon barrier.

Coupon barriers are set at 80% of the initial value and final barriers at 70%. The notes are subject to automatic early redemption on specified dates if the worst performer is at or above its initial value, returning $1,000 plus the applicable coupon. If held to maturity and the worst performer is below its final barrier, repayment is reduced one-for-one with index decline and can be zero. The issue price is $1,000, the underwriting fee is up to $4 per security (proceeds to issuer $996 at maximum fee), and the estimated value on the pricing date is expected to be at least $940.50. The securities will not be listed.

Citigroup Global Markets Holdings Inc. filed a preliminary 424(b)(2) pricing supplement for Autocallable Securities linked to the worst of the Nasdaq-100, Russell 2000, and S&P 500, due November 21, 2030, fully and unconditionally guaranteed by Citigroup Inc.

The notes are $1,000 denomination, pay no interest, and may be automatically redeemed if, on a valuation date before maturity, the worst performing underlying is at or above its initial value. Minimum premiums are scheduled at 10.10% (Nov 18, 2026), 20.20% (Nov 18, 2027), 30.30% (Nov 20, 2028), 40.40% (Nov 19, 2029), and 50.50% (Nov 18, 2030). Each underlying has a final barrier set at 70.00% of its initial value.

If not redeemed early, maturity payment is: principal plus the final premium if the worst underlying is at or above its initial value; par if it’s below initial but at or above the barrier; or 1-to-1 downside with the worst underlying below its barrier. The notes will not be listed. Per security economics: underwriting fee $41.25, proceeds to issuer $958.75, and an estimated value of at least $895.50 on the pricing date. Underwriter is CGMI acting as principal.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc. (C), is offering unsecured, callable contingent coupon equity-linked securities tied to the worst performing of the Nasdaq‑100, Russell 2000, and S&P 500. Each security has a $1,000 stated principal and may pay a contingent coupon of at least 8.70% per annum (0.725% per period) if the worst performing index on the relevant valuation date is at or above its coupon barrier.

The coupon and principal protection are conditional. Both the coupon barrier and final barrier for each index are set at 70% of its initial value. If not called and the worst performing index finishes below its final barrier at maturity on November 16, 2028, repayment is reduced 1% for each 1% decline, down to zero. The issuer can redeem the notes in whole on specified dates, paying $1,000 plus any due coupon. The securities will not be listed. The underwriting fee is up to $29.50 per security (issuer proceeds $970.50 per security), and the estimated value on the pricing date is expected to be at least $911.50 per security.

Citigroup Global Markets Holdings Inc. is offering 14,049 Contingent Income Auto‑Callable Securities linked to Occidental Petroleum common stock, with an aggregate stated principal amount of $14,049,000. The notes pay a 2.70% quarterly coupon (10.80% per annum) only if OXY’s closing price on each valuation date is at or above the $26.78 downside threshold, which is 65.00% of the $41.20 initial share price.

The notes auto‑redeem on specified dates if OXY is at or above the initial share price, returning $1,000 per note plus the coupon. If held to maturity on November 3, 2028 and not redeemed early, payment is (i) $1,000 plus the coupon if the final share price is at or above the threshold, or (ii) $1,000 + ($1,000 × share return) if below the threshold, which can result in substantial loss up to total loss of principal. The securities are not listed. The issue price is $1,000 per note and the estimated value is $967.70. Underwriting reflects a total fee of $316,102.50, with total proceeds to the issuer of $13,732,897.50.

Citigroup Global Markets Holdings Inc. filed a 424B2 for autocallable market‑linked notes tied to the S&P 500 Futures 35% Intraday Edge Volatility TCA 6% Decrement Index (ticker SPXI3EV6), fully and unconditionally guaranteed by Citigroup Inc. Each note has a $1,000 stated principal, is expected to price on November 21, 2025, and, unless called earlier, will mature on November 26, 2030. The notes will not be listed.

The notes may be automatically redeemed on scheduled annual valuation dates if the index closes at or above a threshold, paying $1,000 plus a premium: 8.5% (2026) at 125% of initial value, 17.0% (2027) at 120%, 25.5% (2028) at 115%, 34.0% (2029) at 110%, and 42.5% (2030) at 105%. If not called, maturity pays $1,000 or $1,000 plus the 42.5% premium if the final value meets the 105% threshold.

CGMI acts as underwriter and may receive up to $45.00 per note. The issuer currently expects an estimated value of at least $850.00 per note on the pricing date. Key risks include complex index methodology (volatility targeting, leverage up to 500%, and a 6% decrement) and no dividends. Tax disclosure indicates treatment as contingent payment debt instruments.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., filed a preliminary 424(b)(2) pricing supplement for Callable Equity Linked Securities tied to the worst performer of the Nasdaq-100, Russell 2000, and S&P 500. Each $1,000 security pays monthly coupons of at least 1.008333% (approximately at least 12.10% per annum, to be set on the pricing date) and may be redeemed at the issuer’s option on monthly dates from May through October 2026 at $1,000 plus the related coupon.

If not redeemed, maturity is November 24, 2026. Repayment depends on the worst performing index: investors receive $1,000 if its final value is at or above its initial value, or if it is below but no knock-in occurred. If any index closes below 70% of its initial value on any day during the observation period and the worst performer finishes below its initial value, principal is reduced 1:1 with that decline, down to zero (excluding the final coupon). The issue price is $1,000 with an underwriting fee of up to $4.50 and estimated value of at least $942.50 per security. The notes are unsecured, unlisted, and subject to the credit risk of the issuer and guarantor.

Citigroup Inc. plans to issue Medium‑Term Senior Notes, Series G—Callable Fixed Rate Notes due November 7, 2040—under a Rule 424(b)(2) prospectus. The notes pay a fixed 5.21% coupon per year on each November 7, calculated on a 30/360 basis, with $1,000 returned at maturity plus accrued interest.

Beginning November 7, 2030, Citigroup may redeem the notes at 100% of principal plus accrued interest on any November 7, with at least five business days’ notice. The notes will not be listed on an exchange and will be held through DTC. For fee‑based or eligible institutional accounts, the issue price may vary between $996.50 and $1,000 per note; CGMI may receive an underwriting fee of up to $3.50 per note.

The notes are intended to qualify as TLAC‑eligible, and a wholly owned subsidiary may assume the obligations with Citigroup guaranteeing payments, which affects default and covenant remedies. A temporary six‑month valuation adjustment will appear on CGMI statements and decline to zero over time. Net proceeds are for general corporate purposes and related hedging; affiliates may benefit from hedging. Sales are restricted in Canada and to EEA/UK retail investors.

Citigroup Inc. filed a 424B2 pricing supplement for Callable Range Accrual Notes linked to the 10-year CMT rate, due October 31, 2032. The notes pay a variable quarterly coupon at a contingent rate of 8.20% per annum, but only for days when the 10-year CMT is within 0.00% to 4.40%. For days outside this range, no interest accrues. The notes are unsecured senior debt and will not be listed.

Citigroup may redeem the notes, in whole, on any interest payment date on or after October 31, 2026 at 100% of principal plus accrued coupon, if any. The issue price is $1,000 per note; the estimated value is $959.60 based on CGMI models and internal funding rates. An $25.00 per note underwriting fee applies. The 10-year CMT rate was 4.08% on October 29, 2025. The notes are intended to qualify as TLAC-eligible. Citibank, N.A. acts as calculation agent. U.S. tax treatment is expected as contingent payment debt instruments with a disclosed comparable yield.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc. (C), plans to issue unsecured, autocallable medium‑term senior notes linked to the S&P 500 Futures 40% Edge Volatility 6% Decrement Index (USD) ER, due November 26, 2030. Each security has a $1,000 stated principal amount, no interest, and no listing. The notes may be automatically redeemed after any scheduled valuation date if the index closes at or above the initial value, paying $1,000 plus a premium set on pricing (minimums range from 19.50% starting November 23, 2026 to 97.50% on November 21, 2030).

If not redeemed early, maturity payment is: (i) $1,000 plus the final premium if the final value ≥ initial value; (ii) $1,000 if final value is below initial but ≥ the 50% final barrier; or (iii) 1‑for‑1 downside if final value is below the barrier. The issuer expects an estimated value of at least $850 per security on pricing; the underwriting fee is up to $45 per security, with $955 minimum proceeds to issuer. All payments are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc.

Citigroup Global Markets Holdings Inc. (guaranteed by Citigroup Inc.) priced an offering of autocallable barrier securities linked to the EURO STOXX 50 Index under a 424B2. The total issue size is $6,241,000 at $1,000 per security. An automatic early redemption may occur on October 28, 2026 if the index closes at or above the initial value 5,704.35, paying $1,100 per security (includes a 10% premium). The notes pay no interest and are unsecured, subject to the credit risk of the issuer and guarantor.

If not redeemed early, at maturity on November 2, 2028 investors receive: (i) upside of $1,000 plus return times the 193.08% participation if the final value exceeds the initial; (ii) $1,000 if the final value is ≤ initial but ≥ the final barrier 3,993.045 (70% of initial); or (iii) 1:1 downside if below the barrier. The securities will not be listed. The estimated value on the pricing date is $966.40 per security. Underwriter: CGMI; underwriting fee up to $25 per security; proceeds to issuer $6,084,975.

Citigroup Global Markets Holdings Inc. (guaranteed by Citigroup Inc.) is offering unsecured, autocallable securities linked to the worst performing of the Dow Jones Industrial Average and the Russell 2000 Index. The notes have a $1,000 stated principal amount per security (total issue price $324,000.00), carry no interest, are not listed, and all payments are subject to the issuers’ credit risk. Underwriting fee is up to $35.00 per security (total $10,591.56), with proceeds to issuer of $313,408.44. The estimated value on the pricing date is $954.20 per security.

The notes may redeem early if, on a valuation date, the worst performing index is at or above its initial value, paying $1,000 plus a preset premium that steps from 7.00% (Oct 28, 2026) up to 21.00% (Oct 30, 2028). If held to maturity on Nov 2, 2028 and not previously redeemed: you receive $1,000 plus the final premium if the worst performer is at/above its initial value; $1,000 if it is below initial but at/above the 15.00% buffer; or a loss beyond the buffer on a 1-for-1 basis if it finishes below the buffer. Investors do not receive dividends and do not participate in index upside beyond the fixed premiums.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc. (C), is offering Buffered Digital Securities linked to the Dow Jones Industrial Average with a total issue price of $465,000 at $1,000 per security, due February 4, 2027.

The notes pay no interest and return depends on index performance: if the final index value is at or above the initial value (47,706.37), holders receive $1,085 per note (the $85 digital return, or 8.50%, plus principal). If the index finishes below the initial but at or above the final buffer value (42,935.733, a 10% buffer), repayment is $1,000. Below the buffer, repayment is reduced 1% for each 1% decline beyond 10%.

The securities will not be listed and all payments are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc. The estimated value on pricing is $977.80 per security versus the $1,000 issue price. Underwriting fees are up to $20.50 per security, with total underwriting of $9,532.50 and proceeds to issuer of $455,467.50. Key dates: pricing October 28, 2025, issue October 31, 2025, valuation February 1, 2027.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc. (C), filed a 424(b)(2) preliminary pricing supplement for Autocallable Contingent Coupon Equity Linked Securities tied to NVIDIA Corporation, due May 11, 2027.

The securities pay a 3.4625% contingent coupon per period (equivalent to 13.85% per annum) on scheduled dates only if NVIDIA’s closing value on the prior valuation date is at or above the coupon barrier. The final barrier is set at 60% of the initial value. The notes are autocallable on specified dates if the closing value is at least the initial value, redeeming at $1,000 plus the coupon.

If not called, at maturity investors receive $1,000 if the final value is at or above the final barrier; otherwise, they receive a fixed number of NVIDIA shares (or, at the issuer’s election, cash) based on the equity ratio, which may be worth significantly less than principal. The notes are unsecured and subject to the credit risk of Citigroup and its guarantor, will not be listed, and may have limited liquidity. The issue price is $1,000 with a $15 underwriting fee and $985 proceeds per security. The issuer currently expects an estimated value of at least $930 on the pricing date.

Citigroup Global Markets Holdings Inc. is offering Callable Dual Directional Barrier Securities linked to the S&P 500 Futures Excess Return Index, fully and unconditionally guaranteed by Citigroup Inc. The notes have a $1,000 stated principal amount, price on November 21, 2025, and mature on November 26, 2030, unless redeemed earlier.

The issuer may call the notes on scheduled dates, paying $1,000 plus a preset premium (e.g., 8.75% on November 27, 2026). If held to maturity and final value ≥ initial value, you receive $1,000 plus the upside return at an upsight participation rate of at least 200%. If the index is down but ≥ 60% of the initial value, you receive $1,000 plus the absolute return. If the index finishes below 60% of the initial value, the payoff is $1,000 plus $1,000 × underlying return, which can be substantially less than principal.

The notes are not listed. Underwriting fee is up to $41.25 per note; minimum proceeds to issuer per note are $958.75. The estimated value on the pricing date is expected to be at least $881.50 per note, below the issue price. Investors will not receive dividends on the underlying. Tax counsel expects prepaid forward treatment, subject to uncertainty.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc. (C), is offering callable barrier securities linked to the S&P 500 Futures Excess Return Index, due on November 26, 2030. Each note has a $1,000 stated principal and may be redeemed by the issuer on set dates for $1,000 plus a premium.

Potential redemption dates and premiums are: Nov 27, 2026: 13%; Nov 26, 2027: 26%; Nov 27, 2028: 39%; Nov 27, 2029: 52%. If held to maturity and not called: you receive $1,000 + return amount when the index rises (with an upside participation rate of at least 200%), $1,000 if the index is down but above the barrier, and $1,000 + ($1,000 × underlying return) if below the 60% barrier, which can lead to significant loss.

The notes are not listed. Per note economics: issue price $1,000; underwriting fee up to $41.25; proceeds to issuer $958.75. The issuer currently expects an estimated value of at least $882.50 per security on the pricing date. Pricing is Nov 21, 2025; issue date is Nov 26, 2025.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering unsecured Barrier Securities linked to the S&P 500 Index, due December 2, 2026. The notes pay no interest and repay principal only under defined conditions. At maturity, holders receive: (i) $1,000 plus a return linked to the index at a 100% participation rate, capped by the maximum return at maturity (at least $112.50 per security), if the index is above its initial level; (ii) $1,000 if the index is at or below its initial level but at or above the final barrier value set at 80% of the initial level; or (iii) $1,000 plus $1,000 × the index return if below the barrier, which can result in a substantial loss, up to the entire investment.

The issue price is $1,000 per security, with an underwriting fee of up to $10 and per-security proceeds to the issuer of $990. The issuer expects an estimated value on the pricing date of at least $927 per security based on proprietary models and internal funding rates. The notes will not be listed, and all payments are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc. Key dates: pricing November 25, 2025; issue December 1, 2025; valuation November 27, 2026.

Citigroup Global Markets Holdings Inc. plans to offer unsecured buffer securities linked to the S&P 500 Futures Excess Return Index, fully and unconditionally guaranteed by Citigroup Inc. The notes do not pay interest and repay based on index performance at maturity on November 29, 2030.

Each security has a $1,000 stated principal, an upside participation rate of at least 155%, and a 20% downside buffer. If the index falls beyond the buffer, repayment declines 1-for-1 with further losses. The underlying, a futures-based index, is expected to underperform the S&P 500 total return due to an implicit financing cost. The securities will not be listed and carry the credit risk of both the issuer and guarantor.

Issue price is $1,000 per security, with an underwriting fee of up to $11.25 and per-security proceeds to the issuer of $988.75. The issuer estimates the value on the pricing date to be at least $906.50 per security. Key dates: pricing November 25, 2025, issue December 1, 2025, valuation November 25, 2030.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering unsecured, callable contingent coupon equity-linked securities tied to the worst performer of the Nasdaq-100 Technology Sector Index, the Russell 2000 Index, and the S&P 500 Index, due November 26, 2027.

The notes pay a contingent coupon of at least 7.50% per annum (1.875% per period) only if, on each valuation date, the worst-performing index closes at or above its coupon barrier, set at 70% of its initial value. If not called, repayment of principal at maturity requires the worst performer to be at or above its final barrier (70% of initial); otherwise, principal is reduced one-for-one with the index decline, potentially to zero.

The issuer may call the notes on specified dates, returning $1,000 per security plus any due coupon. The securities are not listed and carry the credit risk of the issuer and guarantor. Per-security economics include a $1,000 issue price, up to $27.50 underwriting fee, proceeds to issuer of $972.50, and an estimated value of at least $897.50 on the pricing date.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering unsecured, autocallable market-linked securities tied to the Citi Dynamic Asset Selector 5 Excess Return Index, due November 26, 2032. The notes pay no interest and may redeem early at set premiums if the Index meets rising threshold levels on scheduled valuation dates.

Each security is issued at $1,000, with an underwriting fee of $42.50 and per‑security proceeds to the issuer of $957.50. The estimated value on the pricing date is expected to be at least $878.00 per security. Early redemption premiums are at least 6.75%, 13.50%, 20.25%, 27.00%, 33.75% and 40.50% on annual dates from 2026 to 2031, provided the Index closes at or above threshold levels from 100.50% to 103.00% of the initial level. If not called, maturity return equals Index appreciation times a 100% participation rate; otherwise principal is repaid.

The Index targets 5% volatility, charges a 0.85% p.a. fee, and shifts between equity and Treasury futures. The securities will not be listed. All payments are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc.

Citigroup Inc. filed a preliminary 424B2 for Callable Fixed to Float Range Accrual Notes linked to the 10‑Year CMT, maturing on October 31, 2030.

The notes pay a 6.20% fixed coupon for the first 1.5 years, then a variable coupon each quarter equal to a 6.20% contingent rate times the fraction of days the 10‑Year CMT is within 0.00%–4.30%. Interest is paid on the last day of January, April, July and October. The issuer may redeem the notes at par plus accrued interest on any interest payment date on or after April 30, 2027, with at least five business days’ notice.

The notes will not be listed. CGMI acts as underwriter and may receive up to $20.00 per note; the estimated value per note on the pricing date is expected between $960.00 and $1,000.00. The notes are intended to qualify as TLAC‑eligible senior unsecured debt. A wholly owned subsidiary may assume the obligations with Citigroup guaranteeing payments, subject to stated conditions.

Citigroup Global Markets Holdings Inc. is offering Autocallable Contingent Coupon Equity Linked Securities linked to the S&P 500 Futures 40% Intraday Edge Volatility TCA 6% Decrement Index (USD) ER, fully and unconditionally guaranteed by Citigroup Inc. The total offering is $1,395,000 (issue price $1,000 per security).

The notes pay a contingent coupon of 1.1292% per month (about 13.55% per annum) only if, on the relevant valuation date, the Index closes at or above the coupon barrier of 5,030.075 (50% of the initial value 10,060.15). They are autocallable on specified dates starting in October 2026 if the Index is at or above its initial value, returning $1,000 plus the coupon. If not called, they mature on July 29, 2030.

At maturity, investors receive $1,000 if the final Index value is at or above the final barrier (50% of initial); otherwise, repayment is $1,000 + ($1,000 × underlying return), which can be significantly less than principal and possibly zero. The securities will not be listed. Underwriting fee is $12.50 per security; total proceeds to the issuer are $1,377,562.50. The estimated value is $928.20 per security on the pricing date.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., filed a preliminary 424(b)(2) for Autocallable Contingent Coupon Equity Linked Securities tied to Advanced Micro Devices, Inc. (AMD), due November 3, 2028.

The notes offer contingent coupons of at least 16.75% per annum, paying only if AMD’s closing value on the prior valuation date is at or above the coupon barrier set at 50% of the initial value. The notes may be automatically called on scheduled potential autocall dates if AMD is at or above its initial value, returning $1,000 per note plus the applicable coupon. If not called and AMD finishes below the final barrier (50%), principal is reduced one-for-one with AMD’s decline, down to zero.

Each note has a stated principal of $1,000; the underwriting fee is up to $20 per note, with proceeds to issuer of $980 per note at the maximum fee. The estimated value on pricing is expected to be at least $917.50 per note. The notes will not be listed and all payments are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering unsecured, callable Contingent Coupon Equity Linked Securities tied to the worst performer of the Nasdaq-100 Technology Sector Index, the Russell 2000 Index, and the S&P 500 Index, due October 7, 2027.

The notes may pay a monthly contingent coupon of at least 0.8667% (approximately at least 10.40% per annum) if, on the prior valuation date, the worst-performing index is at or above its coupon barrier. Both the coupon barrier and final barrier for each index are set at 70% of its initial value. If held to maturity and the worst performer is at or above its final barrier, holders receive $1,000 per security (plus any final coupon). If below, repayment is reduced 1-for-1 with the index decline, potentially to zero.

The issuer may redeem the notes in whole on specified monthly dates, paying $1,000 per security plus any coupon then due. The securities will not be listed. The preliminary estimated value is expected to be at least $925.50 per security. Selected dealers may receive up to $3.75 per security; certain service providers up to $3.50 per security.

Citigroup Global Markets Holdings Inc., guaranteed by Citigroup Inc., is offering unsecured Autocallable Contingent Coupon Equity Linked Securities linked to the worst performing of the S&P 500 Dynamic Participation Index and the SPDR S&P Biotech ETF. The notes target contingent coupons of 0.5833% per month (approximately 7.00% per annum) if, on each valuation date, the worst-of is at or above 65% of its initial value.

The notes may be automatically called on specified dates starting November 10, 2026 if the worst-of is at or above its initial value, returning $1,000 plus the applicable coupon. If not called, at maturity on November 15, 2028 you receive $1,000 if the worst-of is at or above 80% (20% buffer) of its initial value; otherwise, principal is reduced 1-for-1 beyond the 20% buffer. The securities do not pay dividends and will not be listed.

Issue date is November 14, 2025. Underwriting fee is $31.00 per security; proceeds to issuer are $969.00 per $1,000 security. The estimated value on the pricing date is expected to be at least $896.50 per security. All payments are subject to the credit risk of the issuer and guarantor. Tax disclosure notes potential 30% withholding on coupons for certain non-U.S. holders.

Citigroup Global Markets Holdings Inc. plans to issue unsecured, autocallable securities linked to the S&P 500 Index, fully and unconditionally guaranteed by Citigroup Inc. Each security has a $1,000 stated principal amount, with a pricing date of October 31, 2025, issue date of November 5, 2025, and maturity on November 3, 2028, unless called earlier.

The notes may redeem automatically after any valuation date—November 9, 2026, November 1, 2027, or October 31, 2028—if the index closes at or above its initial value, paying $1,000 plus a fixed premium of 8.30%, 16.60%, or 24.90%, respectively. If not redeemed, at maturity you receive: (i) $1,000 plus the final premium if the index is at or above the initial value; (ii) $1,000 if it is below the initial but at or above the 80% final barrier; or (iii) $1,000 × the underlying return if below the barrier, risking significant loss, up to total loss.

The securities pay no interest, do not provide dividends, and will not be listed. Per security economics: issue price $1,000, underwriting fee up to $21, proceeds to issuer $979, and an estimated value of at least $920.50. All payments are subject to the credit risk of Citigroup Global Markets Holdings Inc. and Citigroup Inc.

Citigroup Global Markets Holdings Inc. plans to issue unsecured Dual Directional Barrier Securities linked to the S&P 500 Futures Excess Return Index, due November 29, 2029. These notes pay no interest and return at maturity depend on index performance from pricing to valuation.

Each security is issued at $1,000 with a participation rate of at least 110% on gains. If the index declines but remains at or above the final barrier of 60% of the initial value, the maturity payment increases by the absolute decline. If the index finishes below the barrier, losses match the index decline on a 1-to-1 basis, up to total loss of principal. The pricing date is November 25, 2025; issue date December 1, 2025; valuation date November 26, 2029.

CGMI acts as underwriter with a fee of up to $10 per security; per-security proceeds to the issuer are $990. The estimated value on the pricing date is expected to be at least $915 per security. The notes will not be listed and are subject to the credit risk of Citigroup Global Markets Holdings Inc., fully and unconditionally guaranteed by Citigroup Inc.