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 FINANCIAL HOLDINGS LIMITED

(Name of Registrant)

95 Wellington Street WestSuite 800Toronto, OntarioCanada 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

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, June 19, 2026

Not for distribution to U.S. news wire servicesor dissemination in the United States.

FAIRFAX COMPLETES C$300 MILLION SENIOR NOTESOFFERING

Fairfax Financial Holdings Limited (“Fairfax”) (TSX: FFH and FFH.U) has completed its previously announced offering (the “Offering”) of an additional C$300 million aggregate principal amount of its 4.40% Senior Notes due 2036 (the “Senior Notes”). Together with the previously issued C$400 million aggregate principal amount 4.40% Senior Notes due 2036, there is C$700 million aggregate principal amount of notes of this series outstanding.

The Senior Notes were offered through a syndicate of dealers led by BMO Nesbitt Burns Inc., as sole bookrunner, and included Scotia Capital Inc., CIBC World Markets Inc., Merrill Lynch Canada Inc., National Bank Financial Inc., RBC Dominion Securities Inc., TD Securities Inc., Citigroup Global Markets Canada Inc., Desjardins Securities Inc., J.P. Morgan Securities Canada Inc., Mizuho Securities Canada Inc. and Morgan Stanley Canada Limited, as agents. The Senior Notes are unsecured obligations of Fairfax.

Fairfax intends to use the net proceeds from the Offering for general corporate purposes, which may include the refinancing, repayment or redemption of outstanding debt, equity or other corporate obligations of Fairfax and its subsidiaries and/or to pursue potential acquisition or investment opportunities.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. This press release is not an offer of securities for sale in the United States, and the securities may not be offered or sold in the United States absent registration or an exemption from the registration requirements. The securities have not been and will not be registered under the United States Securities Act of 1933, as amended.

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

FAIRFAX FINANCIAL HOLDINGS LIMITED

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

Certain statements contained herein may constitute “forward-looking statements” and are made pursuant to the “safe harbour” provisions of applicable Canadian andU.S. securities laws. Such forward-looking statements may include, among other things, the intended use of proceeds from the Offering.Such forward-looking statements are subject to known and unknown risks, uncertainties and other factors which may cause the actual results,performance or achievements of Fairfax to be materially different from any future results, performance or achievements expressed or impliedby such forward-looking statements. Such factors include, but are not limited to: our ability to complete acquisitions and other strategictransactions on the terms and timeframes contemplated, and to achieve the anticipated benefits therefrom; a reduction in net earningsif our loss reserves are insufficient; underwriting losses on the risks we insure that are higher than expected; the occurrence of catastrophicevents with a frequency or severity exceeding our estimates; changes in market variables, including unfavourable changes in interestrates, foreign exchange rates, equity prices and credit spreads, which could negatively affect our operating results and investment portfolio;the cycles of the insurance market and general economic 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; exposureto credit risk in the event our reinsurers fail to make payments to us under our reinsurance arrangements; exposure to credit risk inthe event our insureds, insurance producers or reinsurance intermediaries fail to remit premiums that are owed to us or failure by ourinsureds to reimburse us for deductibles that are paid by us on their behalf; our inability to maintain our long term debt ratings, theinability of our subsidiaries to maintain financial or claims paying ability ratings and the impact of a downgrade of such ratings onderivative transactions that we or our subsidiaries have entered into; risks associated with implementing our business strategies; thetiming of claims payments being sooner or the receipt of reinsurance recoverables being later than anticipated by us; risks associatedwith any use we may make of derivative instruments; the failure of any hedging methods we may employ to achieve their desired risk managementobjective; a decrease in the level of demand for insurance or reinsurance products, or increased competition in the insurance industry;the impact of emerging claim and coverage issues or the failure of any of the loss limitation methods we employ; our inability to accesscash of our subsidiaries; an increase in the amount of capital that we and our subsidiaries are required to maintain and our inabilityto obtain required levels of capital on favourable terms, if at all; the loss of key employees; our inability to obtain reinsurance coveragein sufficient amounts, at reasonable prices or on terms that adequately protect us; the passage of legislation subjecting our businessesto additional adverse requirements, supervision or regulation, including additional tax regulation, in the United States, Bermuda, Canadaor other jurisdictions in which we operate; risks associated with applicable laws and regulations relating to sanctions, anti-money launderingand corrupt practices in Canada and in foreign jurisdictions in which we operate; risks associated with government investigations of,and litigation and negative publicity related to, insurance industry practice or any other conduct; risks associated with political andother developments in foreign jurisdictions in which we operate; risks associated with legal or regulatory proceedings or significantlitigation; 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 on independent brokers over whom we exercise little control;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 economic disruptions from globalconflicts and the development of other geopolitical events worldwide; and risks associated with tariffs, trade restrictions, or otherregulatory measures imposed by domestic or foreign governments that may, directly or indirectly, affect our business. Additional risksand uncertainties are described in our most recently issued Annual Report, which is available at www.fairfax.ca, on SEDAR+ atwww.sedarplus.ca and on EDGAR at www.sec.gov, and in our base shelf prospectus (under “Risk Factors”)filed with the securities regulatory authorities in Canada, which is available on SEDAR+ at www.sedarplus.ca. Fairfax disclaimsany intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future eventsor otherwise, except as required by applicable securities law.