6-K

UNITED STATESSECURITIES AND EXCHANGE COMMISSION****Washington, D.C. 20549

Form 6-K

Report of Foreign Private IssuerPursuant to Rule 13a-16 or 15d-16 ofthe Securities Exchange Act of 1934

FAIRFAX FINANCIALHOLDINGS LIMITED

(Name of Registrant)

95 Wellington Street WestSuite 800

Toronto, Ontario

Canada M5J 2N7

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

EXHIBIT INDEX

-3-

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Exhibit 99.1

FAIRFAX News Release

TSX Stock Symbol: FFH and FFH.U

TORONTO, August 29, 2025

FAIRFAX ANNOUNCESINTENTION TO REDEEMCUMULATIVE PREFERRED SHARES, SERIES G & H

Fairfax Financial Holdings Limited (“Fairfax”) (TSX: FFH and FFH.U) today announced its intention to redeem (i) all of its 7,719,843 outstanding Cumulative 5-Year Rate Reset Preferred Shares, Series G (the “Series G Shares”), and (ii) all of its 2,280,157 outstanding Cumulative Floating Rate Preferred Shares, Series H (the “Series HShares” and, together with the Series G Shares, the “Preferred Shares”) on September 30, 2025 (the “Redemption Date”) at a redemption price equal to C$25.00 per share, for an aggregate total amount of C$250.0 million, together with all accrued and unpaid dividends up to but excluding the Redemption Date (the “Redemption Price”), less any tax required to be deducted and withheld by Fairfax.

Formal notice will be delivered to the sole registered holder of the Preferred Shares in accordance with the terms of the Preferred Shares of the applicable series as set out in Fairfax’s articles.

Separately from the Redemption Price, (i) the final quarterly dividend of C$0.185125 per Series G Share will be paid in the usual manner to holders of Series G Shares on September 30, 2025, and (ii) the final quarterly dividend of C$0.32792 per Series H Share will be paid in the usual manner to holders of Series H Shares on September 29, 2025, in each case to shareholders of record on September 15, 2025.

Non-registered holders of Preferred Shares should contact their broker or other intermediary for information regarding the redemption process for the series of Preferred Shares in which they hold a beneficial interest. Fairfax’s transfer agent for the Preferred Shares is Computershare Trust Company of Canada (“Computershare”). Questions regarding the redemption process may be directed to Computershare at 1-800-564-6253 or by email to corporateactions@computershare.com.

Following the redemption on September 30, 2025, the Series G Shares and the Series H Shares will be delisted from and no longer trade on the Toronto Stock Exchange (“TSX”).

Fairfax is a holding company which, through its subsidiaries, is primarily engaged in property and casualty insurance and reinsurance and the associated investment management.

FAIRFAXFINANCIAL HOLDINGS LIMITED

95Wellington Street West, Suite 800, Toronto, Ontario, M5J 2N7 Telephone: 416-367-4941 Facsimile: 416-367-4946

Certainstatements contained herein may constitute “forward-looking statements” and are made pursuant to the “safe harbour”provisions of applicable Canadian securities laws. Such forward-looking statements may include, among other things, Fairfax’s intentionto redeem the Preferred Shares and the subsequent delisting thereof on the TSX. Such forward-looking statements are subject to knownand unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Fairfax to be materiallydifferent from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factorsinclude, but are not limited to: our ability to complete acquisitions and other strategic transactions on the terms and timeframes contemplated,and to achieve the anticipated benefits therefrom; a reduction in net earnings if our loss reserves are insufficient; underwriting losseson the risks we insure that are higher than expected; the occurrence of catastrophic events with a frequency or severity exceeding ourestimates; changes in market variables, including unfavourable changes in interest rates, foreign exchange rates, equity prices and creditspreads, which could negatively affect our operating results and investment portfolio; the cycles of the insurance market and generaleconomic conditions, which can substantially influence our and our competitors’ premium rates and capacity to write new business;insufficient reserves for asbestos, environmental and other latent claims; exposure to credit risk in the event our reinsurers fail tomake payments to us under our reinsurance arrangements; exposure to credit risk in the event our insureds, insurance producers or reinsuranceintermediaries fail to remit premiums that are owed to us or failure by our insureds to reimburse us for deductibles that are paid byus on their behalf; our inability to maintain our long term debt ratings, the inability of our subsidiaries to maintain financial orclaims paying ability ratings and the impact of a downgrade of such ratings on derivative transactions that we or our subsidiaries haveentered into; risks associated with implementing our business strategies; the timing of claims payments being sooner or the receipt ofreinsurance recoverables being later than anticipated by us; risks associated with any use we may make of derivative instruments; thefailure of any hedging methods we may employ to achieve their desired risk management objective; a decrease in the level of demand forinsurance or reinsurance products, or increased competition in the insurance industry; the impact of emerging claim and coverage issuesor the failure of any of the loss limitation methods we employ; our inability to access cash of our subsidiaries; an increase in theamount of capital that we and our subsidiaries are required to maintain and our inability to obtain required levels of capital on favourableterms, if at all; the loss of key employees; our inability to obtain reinsurance coverage in sufficient amounts, at reasonable pricesor on terms that adequately protect us; the passage of legislation subjecting our businesses to additional adverse requirements, supervisionor regulation, including additional tax regulation, in the United States, Bermuda, Canada or other jurisdictions in which we operate;risks associated with applicable laws and regulations relating to sanctions and corrupt practices in foreign jurisdictions in which weoperate; risks associated with government investigations of, and litigation and negative publicity related to, insurance industry practiceor any other conduct; risks associated with political and other developments in foreign jurisdictions in which we operate; risks associatedwith legal or regulatory proceedings or significant litigation; failures or security breaches of our computer and data processing systems;the influence exercisable by our significant shareholder; adverse fluctuations in foreign currency exchange rates; our dependence onindependent brokers over whom we exercise little control; financial reporting risks associated with IFRS 17 – Insurance Contracts;financial reporting risks relating to deferred taxes associated with amendments to IAS 12 – Income Taxes; impairment of the carryingvalue of our goodwill, indefinite-lived intangible assets or investments in associates; our failure to realize deferred income tax assets;risks associated with Canadian or foreign tax laws, or the interpretation thereof; technological or other change that adversely impactsdemand, or the premiums payable, for the insurance coverages we offer; disruptions of our information technology systems; assessmentsand shared market mechanisms that may adversely affect our insurance subsidiaries; risks associated with the conflicts in Ukraine andIsrael and the development of other geopolitical events and economic disruptions worldwide; and risks associated with tariffs, traderestrictions, or other regulatory measures imposed by domestic or foreign governments that may, directly or indirectly, affect our business.Additional risks and uncertainties are described in our most recently issued Annual Report which is available at www.fairfax.caand on SEDAR+ at www.sedarplus.ca, and in our base shelf prospectus (under “Risk Factors”) filed with the securitiesregulatory authorities in Canada, which is available on SEDAR+ at www.sedarplus.ca. Fairfax disclaims any intention or obligationto update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as requiredby applicable securities law.