BERKLEY W R CORP
For the period ended Dec 31, 2025. Filed Feb 27, 2026.
View on SEC.govAbout this filing
A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.
FY2025 · Filed Feb 27, 2026
What changed in Risk Factors?
Read the current filingPrevious report: 10-K
Period ended 2024-12-31; filed 2025-02-24.
0000011544-25-000005
Item 1A. RISK FACTORSCurrent report: 10-K
Period ended 2025-12-31; filed 2026-02-27.
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Item 1A. RISK FACTORSThe baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.
Compared 130 previous paragraphs and 144 current paragraphs.
98 unchanged; 30 reworded; 15 added; 1 removed; 1 previous and 1 current paragraphs rearranged.
Tables are not compared: 0 previous and 0 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.
A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.
Added paragraphs (15)
Current report
Adverse economic factors, including recessions, inflation, periods of high unemployment, the impact of tariffs or lower economic activity could result in the sale of fewer policies than expected or an increase in frequency or severity of claims and premium defaults or both, which, in turn, could affect our growth and profitability.
Current report
Numerous factors, such as business revenue, economic conditions, the impact of tariffs, the volatility and strength of the capital markets and inflation can affect the business and economic environment. These same factors affect our ability to generate revenue and profits. In an economic downturn that is characterized by higher unemployment, declining spending and reduced corporate revenues, the demand for insurance products is generally adversely affected, which directly affects our premium levels and profitability. Negative economic factors may also affect our ability to receive the appropriate rate for the risk we insure with our policyholders and may adversely affect the number of policies we can write, including with respect to our opportunities to underwrite profitable business. In an economic downturn, customers may have less need for insurance coverage, cancel existing insurance policies, modify their coverage or not renew the policies they hold. Existing policyholders may exaggerate or even falsify claims to obtain higher claims payments. These outcomes would reduce our underwriting profit to the extent these factors are not reflected in the rates we charge.
Current report
Given the inherent uncertainty of models, the usefulness of such models as a tool to evaluate risk is subject to a high degree of uncertainty that could result in actual losses that are materially different than our estimates. A deviation from our loss estimates may adversely impact, perhaps significantly, our financial results.
Current report
Our approach to risk management relies on subjective variables that entail significant uncertainties. For example, we consider estimates of probability of exceedance and deterministic scenarios for certain events that are generated by computer-run models. In addition, we use historical data and scenarios, among other factors, to analyze and manage credit and interest rate risks in our investment portfolio. It is possible that actual events could give rise to losses materially different to those estimated by these models.
Current report
Small changes in assumptions, which depend heavily on our judgment and foresight, can have a significant impact on the modeled outputs. For example, catastrophe models that simulate loss estimates based on a set of assumptions are important tools used to estimate our exceedance probability curves. These assumptions address a number of factors that impact loss potential including, but not limited to, the characteristics of a given natural catastrophe event; the increase in claim costs resulting from limited supply of labor and materials needed for repairs following a catastrophe event (demand surge); the types, function, location and characteristics of exposed risks; susceptibility of exposed risks to damage from an event with specific characteristics; and the financial and contractual provisions of the (re)insurance contracts that cover losses arising from an event. We run many model simulations in order to understand the impact of these assumptions on a catastrophe’s loss potential.
Current report
Furthermore, there are risks associated with catastrophe events, which are either poorly represented or not represented at all by catastrophe models. Each modeling assumption or un-modeled risk introduces uncertainty into estimated modeled losses that management must consider. These uncertainties can include, but are not limited to, the following:
Current report
•The models do not address all the possible hazard characteristics of a catastrophe peril (e.g. the precise path and wind speed of a hurricane);
Current report
•The models may not accurately reflect the true frequency of events;
Current report
•The models may not accurately reflect a risk's vulnerability or susceptibility to damage for a given event characteristic;
Current report
•The models may not accurately represent loss potential to insurance or reinsurance contract coverage limits, terms and conditions; and
Current report
•The models may not accurately reflect the impact on the economy of the area affected or the financial, judicial, political, or regulatory impact on insurance claim payments during or following a catastrophe event.
Current report
As a result of these factors and contingencies, our reliance on assumptions and data used to estimate exceedance probability curves and modeled scenario losses is subject to a high degree of uncertainty that could result in actual losses that are materially different from our modeled estimates and our financial results could be adversely affected.
Current report
Our employees could take excessive risks, which could negatively affect our financial condition and business.
Current report
As an insurance enterprise, we are in the business of binding certain risks. The employees who conduct our business, including executive officers and other members of management, underwriters, product managers and other employees, do so in part by making decisions and choices that involve exposing us to risk. These include decisions such as setting underwriting guidelines and standards, product design and pricing, determining which business opportunities to pursue and other decisions. We endeavor, in the design and implementation of our compensation programs and practices, to avoid giving our employees incentives to take excessive risks. Employees may, however, take such risks regardless of the structure of our compensation programs and practices. Similarly, although we employ controls and procedures designed to monitor employees’ business decisions and prevent them from taking excessive risks, these controls and procedures may not be effective. If our employees take excessive risks, the impact of those risks could have a material adverse effect on our financial condition and business operations.
Current report
In addition, Mitsui Sumitomo Insurance Co., Ltd. ("MSI"), which owns approximately 14.7% of our common stock as of February 23, 2026, has entered into voting and other arrangements with members of the Berkley family, such that the Berkley family can, subject to certain exceptions, determine the voting of the Company shares held by MSI, including with respect to an extraordinary transaction, other than one expected to result in a business combination that would give rise to a significant, direct and irresolvable conflict of interest for MSI.
Removed paragraphs (1)
Previous report
•the need for advance notice in order to raise business or make nominations at stockholders' meetings.
Reworded paragraphs (30)
Previous wording
The demand for insurance is influenced primarily by general economic conditions, while the supply of insurance is often directly related to available capacity based on the perceived profitability of the business. The adequacy of premium rates is affected mainly by the severity and frequency of claims, which are influenced by many factors, including natural disasters and other catastrophic events, regulatory measures and court decisions that define and expand the extent of coverage, and the effects of economic and social inflation on the amount of claims payments due for injuries or losses. In addition, investment rates of return impact rate adequacy. These factors can have a significant impact on ultimate profitability because a property casualty insurance policy is priced before its costs are known as premiums usually are determined long before claims are reported. These factors could produce results that would have a negative impact on our results of operations and financial condition.
Current wording
The demand for insurance is influenced primarily by general economic conditions, including the impact of tariffs, while the supply of insurance is often directly related to available capacity based on the perceived profitability of the business. The adequacy of premium rates is affected mainly by the severity and frequency of claims, which are influenced by many factors, including natural disasters and other catastrophic events, regulatory measures and court decisions that define and expand the extent of coverage, and the effects of economic and social inflation on the amount of claims payments due for injuries or losses. In addition, investment rates of return impact rate adequacy. These factors can have a significant impact on ultimate profitability because a property casualty insurance policy is priced before its costs are known as premiums usually are determined long before claims are reported. These factors could produce results that would have a negative impact on our results of operations and financial condition.
Previous wording
The uncertainty of an insurer’s ultimate loss costs, and fluctuating competitive conditions, result in alternating periods of “hard” markets (more profitable for insurers) and “soft” markets (less profitable for insurers). In recent years, improvement (or deterioration) in various lines of property casualty insurance has become less uniform in its cyclicality, with changes frequently happening at different rates, and even at times in different directions. Over the past several years, premium rates have increased for most lines of business, while they have decreased in others, most notably workers' compensation and certain professional liability lines of business.
Current wording
The uncertainty of an insurer’s ultimate loss costs, and fluctuating competitive conditions, result in alternating periods of “hard” markets (more profitable for insurers) and “soft” markets (less profitable for insurers). In recent years, improvement (or deterioration) in various lines of property casualty insurance has become less uniform in its cyclicality, with changes frequently happening at different rates, and even at times in different directions. Recently, insurance rates have generally moderated for many lines of business, particularly for property lines, which in some instances are experiencing rate decreases. Rates for workers' compensation and certain professional liability lines of business continue to decrease.
Previous wording
We compete with a large number of other companies in our selected lines of business. We compete, and will continue to compete, with major U.S. and non-U.S. insurers and reinsurers, other regional companies, as well as mutual companies, specialty insurance companies, underwriting agencies, diversified financial services companies and insurtech companies. Competitiveness in our businesses is based on many factors, including premium charges, ratings assigned by independent rating agencies, commissions paid to producers, the perceived financial strength of the company, other terms and conditions offered, services provided, ease of doing business, speed of claims payment and reputation and experience in the lines to be written. Periods of insurance industry consolidation may further increase competition in some parts of our business and may cause our insurance subsidiaries to incur greater customer retention and acquisition expenses, affecting the profitability of existing and new business. At times, we have faced significant competition in our business as a result of existing insurers seeking to gain or maintain market share as well as new entrants and capital providers.
Current wording
We compete with a large number of other companies in our selected lines of business. We compete, and will continue to compete, with major U.S. and non-U.S. insurers and reinsurers, other regional companies, as well as mutual companies, specialty insurance companies, underwriting agencies, diversified financial services companies and insurtech companies. Competitiveness in our businesses is based on many factors, including premium charges, ratings assigned by independent rating agencies, commissions paid to producers, the perceived financial strength of the company, other terms and conditions offered, services provided, ease of doing business, speed of claims payment and reputation and experience in the lines to be written. Periods of insurance industry consolidation may further increase competition in some parts of our business and may cause our insurance subsidiaries to incur greater customer retention and acquisition expenses, affecting the profitability of existing and new business. At times, we face significant competition in our business as a result of existing insurers seeking to gain or maintain market share as well as new entrants and capital providers.
Previous wording
Some of our competitors, particularly in the reinsurance business, have greater financial and/or marketing resources than we do. These competitors within the reinsurance market include Swiss Re, Munich Re, Berkshire Hathaway and Partner Re. We expect that perceived financial strength, in particular, will become more important as customers seek high quality reinsurers.
Current wording
Some of our competitors, particularly in the reinsurance business, have greater financial and/or marketing resources than we do. These competitors within the reinsurance market include Swiss Re, Munich Re, Berkshire Hathaway and Hannover Re. Perceived financial strength, in particular, is important as customers seek high quality reinsurers.
Previous wording
Recently, insurance prices have generally increased for most lines of business, excluding workers' compensation and certain professional liability lines of business. However, loss costs have also increased and the duration and magnitude of the improved pricing environment remains uncertain. Despite higher interest rates, current price levels for certain lines of business may remain below the prices required for us to achieve our long-term return objectives. We expect to continue to face strong competition in our business.
Current wording
Recently, insurance rate increases have generally moderated for many lines of business, particularly for property lines, which in some instances are experiencing rate decreases. Rates for workers' compensation and certain professional liability lines of business continue to decrease. Loss costs continue to increase, principally due to continued social inflation. Current price levels for certain lines of business may remain below the prices required for us to achieve our long-term return objectives. We expect to continue to face strong competition in our business.
Previous wording
Our gross reserves for losses and loss expenses were approximately $20.4 billion as of December 31, 2024. Our loss reserves reflect our best estimates of the cost of settling claims and related expenses with respect to insured events that have occurred.
Current wording
Our gross reserves for losses and loss expenses were approximately $22.2 billion as of December 31, 2025. Our loss reserves reflect our best estimates of the cost of settling claims and related expenses with respect to insured events that have occurred.
Previous wording
Property casualty insurers are subject to claims arising out of catastrophes that may have a significant effect on their results of operations, liquidity and financial condition. Catastrophe losses have had a significant impact on our results. For example, current accident year catastrophe losses net of reinsurance recoveries were $298 million in 2024, $195 million in 2023, and $212 million in 2022. Similarly, man-made catastrophes can also have a material impact on our financial results. Depending on market conditions and other factors, we may seek to increase our writing of property casualty insurance, and, accordingly, our exposure to catastrophic events would be increased.
Current wording
Property casualty insurers are subject to claims arising out of catastrophes that may have a significant effect on their results of operations, liquidity and financial condition. Catastrophe losses have had a significant impact on our results. For example, current accident year catastrophe losses net of reinsurance recoveries were $336 million in 2025, $298 million in 2024 and $195 million in 2023. Similarly, man-made catastrophes can also have a material impact on our financial results. Depending on market conditions and other factors, we may seek to increase our writing of property casualty insurance, and, accordingly, our exposure to catastrophic events would be increased.
Previous wording
The COVID-19 pandemic, including the related impact on the U.S. and global economies, materially and adversely affected our results of operations. New or emerging pandemics, whether related to COVID-19 or otherwise, may materially and adversely affect our results of operations, financial position and liquidity, including the following:
Current wording
New or emerging pandemics, whether related to COVID-19 or otherwise, may materially and adversely affect our results of operations, financial position and liquidity, including the following:
Previous wording
Changing climate conditions may alter the frequency and increase the severity of catastrophic events and thereby adversely affect our financial condition and results.
Current wording
Changing climate conditions may alter the frequency and increase the severity of catastrophic events and thereby adversely affect our financial condition and results of operations.
Previous wording
In recent years, changing weather patterns and climatic conditions, such as global warming, appear to have contributed to the unpredictability, frequency and severity of natural disasters and created additional uncertainty as to future trends and exposures. There is a scientific consensus that global warming and other climate change are altering the frequency, severity and peril characteristics of catastrophic weather events, such as hurricanes, windstorms, floods, wildfires and other natural disasters. Such changes make it more difficult for us to predict and model catastrophic events, reducing our ability to accurately price our exposure to such events and mitigate our risks. Any increase in the frequency or severity of natural disasters may adversely affect our financial condition and results.
Current wording
In recent years, changing weather patterns and climatic conditions, such as global warming, appear to have contributed to the unpredictability, frequency and severity of natural disasters and created additional uncertainty as to future trends and exposures. There is a scientific consensus that global warming and other climate change are altering the frequency, severity and peril characteristics of catastrophic weather events, such as hurricanes, windstorms, floods, wildfires and other natural disasters. Such changes make it more difficult for us to predict and model catastrophic events, reducing our ability to accurately price our exposure to such events and mitigate our risks. Any increase in the frequency or severity of natural disasters may adversely affect our financial condition and results of operations.
Previous wording
We, as a primary insurer, may have significant exposure for terrorist acts.
Current wording
We, as a primary insurer, may have significant exposure to terrorist acts.
Previous wording
To the extent an act of terrorism, whether a domestic or foreign act, is certified by the Secretary of Treasury, we may be covered under the Terrorism Risk Insurance Program Reauthorization Act of 2019 (“TRIPRA”), for up to 80% of our covered losses for certain property/casualty lines of insurance. However, any such coverage would be subject to a mandatory deductible based on 20% of earned premium for the prior year for the covered lines of commercial property and casualty insurance. Based on our 2024 earned premiums, our aggregate deductible under TRIPRA during 2025 is approximately $1,663 million. In addition, the coverage provided under TRIPRA does not apply to reinsurance that we write. To the extent that our reinsurers have excluded coverage for certain terrorist acts or have priced this coverage at rates that make purchasing such coverage economically infeasible, we may not have reinsurance protection and could be exposed to potential losses as a result of any acts of terrorism.
Current wording
To the extent an act of terrorism, whether a domestic or foreign act, is certified by the Secretary of Treasury, we may be covered under the Terrorism Risk Insurance Program Reauthorization Act of 2019 (“TRIPRA”), for up to 80% of our covered losses for certain property/casualty lines of insurance. However, any such coverage would be subject to a mandatory deductible based on 20% of earned premium for the prior year for the covered lines of commercial property and casualty insurance. Based on our 2025 earned premiums, our aggregate deductible under TRIPRA during 2026 is approximately $1,835 million. In addition, the coverage provided under TRIPRA does not apply to reinsurance that we write. To the extent that our reinsurers have excluded coverage for certain terrorist acts or have priced this coverage at rates that make purchasing such coverage economically infeasible, we may not have reinsurance protection and could be exposed to potentially significant losses as a result of any acts of terrorism.
Previous wording
State regulation is the primary form of regulation of insurance and reinsurance in the United States, although Congress has considered various proposals regarding federal regulation of insurance, in addition to the changes brought about by the Dodd-Frank Act, such as proposals for the creation of an optional federal charter for insurance companies. We may be subject to potentially increased federal oversight as a financial institution. In addition, the new U.S. administration and the volatile political environment increases the chance of other federal legislative and regulatory changes that could affect us in ways we cannot predict.
Current wording
State regulation is the primary form of regulation of insurance and reinsurance in the United States, although Congress has considered various proposals regarding federal regulation of insurance, in addition to the changes brought about by the Dodd-Frank Act, such as proposals for the creation of an optional federal charter for insurance companies. We may be subject to potentially increased federal oversight as a financial institution. In addition, the current U.S. administration and the volatile political environment increases the chance of other federal legislative and regulatory changes that could affect us in ways we cannot predict.
Previous wording
With respect to international measures, Solvency II, the EU regime concerning the capital adequacy, risk management and regulatory reporting for insurers and reinsurers may affect our insurance businesses. As described in “International Regulation” above, the EU has recently amended certain provisions in Solvency II, which EU member states will implement in their domestic regulation over the next two years. In addition, despite the waiver of the Solvency II group capital requirements we received, any changes in the application of Solvency II (or any further amendments to Solvency II itself) may have the effect of increasing the capital requirements of our EU domiciled insurers. Additionally, our capital requirements and compliance requirements may be adversely affected if the European Commission does not deem the insurance regulatory regimes of the jurisdictions outside the EU in which we have insurance or reinsurance companies domiciled to be “equivalent” to Solvency II.
Current wording
With respect to international measures, Solvency II, the EU regime concerning the capital adequacy, risk management and regulatory reporting for insurers and reinsurers may affect our insurance businesses. As described in “International Regulation” above, the EU has adopted amendments to certain provisions in Solvency II, which EU member states are in the process of implementing in their domestic regulation over 2025 and 2026. In addition, despite the waiver of the Solvency II group capital requirements we received, any changes in the application of Solvency II (or any further amendments to Solvency II itself) may have the effect of increasing the capital requirements of our EU domiciled insurers. Additionally, our capital requirements and compliance requirements may be adversely affected if the European Commission does not deem the insurance regulatory regimes of the jurisdictions outside the EU in which we have insurance or reinsurance companies domiciled to be “equivalent” to Solvency II.
Previous wording
Similar considerations apply to our U.K. subsidiaries, which are now subject to a separate U.K. prudential regime that derives from Solvency II. However, the two regimes, and their respective requirements, have begun to diverge due to both the EU’s recent amendments to Solvency II described above and the reforms to the U.K.’s domestic prudential regime (please see “International Regulation” above for more information). We therefore may be required to utilize additional resources to ensure compliance with the different rules in each regime.
Current wording
Similar considerations apply to our U.K. subsidiaries, which are now subject to a separate U.K. prudential regime that derives from Solvency II. However, the two regimes, and their respective requirements, continue to diverge due to both the EU’s amendments to Solvency II described above and the reforms to the U.K.’s domestic prudential regime (please see “International Regulation” above for more information). We therefore may be required to utilize additional resources to ensure compliance with the different rules in each regime.
Previous wording
We face additional risks as a result of our international operations which could have an adverse effect on our results of operations and financial condition including: burdens and costs of compliance with a variety of foreign laws and regulations and the associated risk and costs of non-compliance; exposure to undeveloped or evolving legal systems, which may result in unpredictable or inconsistent application of laws and regulations; exposure to commercial, political, legal or regulatory corruption; political, economic or other instability in countries in which we conduct business, including possible terrorist acts; the imposition of tariffs, trade barriers or other protectionist laws or business practices that favor local competition, increased costs and adverse effects on our business; changes to visa or immigration policies; diminished ability to enforce our contractual rights; potential increased risk of data breaches; differences in cultural environments; sociopolitical instability; social, political or economic instability resulting from climate change; changes in regulatory requirements, including changes in regulatory treatment of certain products or services; exposure to local economic conditions and its impact on our clients’ performance and creditworthiness; and restrictions on the repatriation of non-U.S. investments and earnings.
Current wording
We face additional risks as a result of our international operations which could have an adverse effect on our results of operations and financial condition including: burdens and costs of compliance with a variety of foreign laws and regulations and the associated risk and costs of non-compliance; exposure to undeveloped or evolving legal systems, which may result in unpredictable or inconsistent application of laws and regulations; exposure to commercial, political, legal or regulatory corruption; political, economic or other instability in countries in which we conduct business, including possible terrorist acts; the imposition of existing or future tariffs, trade barriers or other protectionist laws or business practices that favor local competition, increased costs and adverse effects on our business; changes to visa or immigration policies; diminished ability to enforce our contractual rights; potential increased risk of data breaches; differences in cultural environments; sociopolitical instability; social, political or economic instability resulting from climate change; changes in regulatory requirements, including changes in regulatory treatment of certain products or services; exposure to local economic conditions and its impact on our clients’ performance and creditworthiness; and restrictions on the repatriation of non-U.S. investments and earnings.
Previous wording
by a malicious computer virus, denial of service attack, or other cybersecurity incident, our systems could be inaccessible for an extended period of time. In addition, because our information technology and telecommunications systems interface with and depend on third-party systems and infrastructure beyond our control, we could experience service denials or failures of controls if demand for our service exceeds capacity or a third-party system or infrastructure fails or experiences an interruption. If our business continuity plans or system security does not sufficiently address such a business interruption, system failure or service denial, our ability to write and process new and renewal business, provide customer service, pay claims in a timely manner or perform other necessary business functions could be significantly impaired and our business could be harmed.
Current wording
Our business is highly dependent upon our employees' ability to perform necessary business functions in an efficient and uninterrupted fashion. A shutdown of, or inability to access, one or more of our facilities, a power outage or a failure of one or more of our information technology, telecommunications, other computer systems, or other critical infrastructure could significantly impair our employees' ability to perform such functions on a timely basis. In the event of a disaster such as a natural catastrophe, terrorist attack or industrial accident, physical or electronic security breaches, such as breaches by computer hackers, the infection of our systems by a malicious computer virus, denial of service attack, or other cybersecurity incident, our systems could be inaccessible for an extended period of time. In addition, because our information technology and telecommunications systems interface with and depend on third-party systems and infrastructure beyond our control, we could experience service denials or failures of controls if demand for our service exceeds capacity or a third-party system or infrastructure fails or experiences an interruption. If our business continuity plans or system security does not sufficiently address such a business interruption, system failure or service denial, our ability to write and process new and renewal business, provide customer service, pay claims in a timely manner or perform other necessary business functions could be significantly impaired and our business and results of operations could be harmed.
Previous wording
Although we have taken steps intended to protect our data and information technology systems and mitigate the risk of harm caused by cybersecurity incidents or breaches, no safeguards are perfect and any failure of these safeguards could cause a substantial disruption of our business operations, which could result in service interruptions, data security compromises, regulatory action, and other similar operational and legal issues, as well as substantial remediation and other costs. Our operations rely on the secure processing, storage and transmission of confidential and other sensitive information, including personal information, in our computer systems and networks. Cybersecurity breaches, including physical or electronic break-ins, computer viruses, malware, attacks by hackers, ransomware attacks, phishing attacks, supply chain attacks, breaches due to employee error or misconduct and other similar breaches can create system disruptions, shutdowns or unauthorized access to, or disclosure of, information maintained in our information technology systems and in the information technology systems of our vendors and other third parties.
Current wording
Although we have taken reasonable steps intended to protect our data and information technology systems, and to mitigate potential risk of harm caused by cybersecurity incidents or breaches, no safeguards are perfect and any failure of these safeguards could cause a substantial disruption of our business operations, which could result in service interruptions, data security compromises, regulatory action, and other similar operational and legal issues, as well as substantial remediation and other costs. Our operations rely on the secure processing, storage and transmission of confidential and other sensitive information, including personal information, in our computer systems and networks. Cybersecurity breaches, including physical or electronic break-ins, computer viruses, malware, attacks by hackers, ransomware attacks, phishing attacks, supply chain attacks, breaches due to employee error or misconduct and other similar breaches can create system disruptions, shutdowns or unauthorized access to, or disclosure of, information maintained in our information technology systems and in the information technology systems of our vendors and other third parties on which we rely.
Previous wording
We have in the past experienced cybersecurity incidents affecting our information technology systems as well as the information technology systems of our vendors and other third parties, but, to our knowledge, we have not experienced any material cybersecurity breaches. We expect cybersecurity threats to continue to occur in the future and we are constantly managing efforts to infiltrate and compromise our systems and data. Our electronic transmission of personal, confidential and proprietary information to third parties with whom we have business relationships and our outsourcing of certain technology and business process functions to third parties may expose us to enhanced risk related to data security. While we have implemented secure data transmission capabilities with these third-party vendors and others with whom we do business, such capabilities may not function as intended and our vendors and third parties could still suffer data breaches that could result in the exposure of sensitive data and the infiltration of our computer systems. Our failure to effectively protect sensitive personal and/or proprietary information, whether owing to breaches of our own systems or those of our vendors and other third parties, could result in significant monetary and reputational damages, material adverse effects to our financial condition, costly litigation, or other regulatory enforcement actions. These increased risks, and expanding regulatory requirements regarding data security, including required compliance with applicable privacy and data protection laws (e.g., the GDPR, CCPA, and other state-specific privacy statutes and regulations), could expose us to data loss, monetary and reputational damages and significant increases in compliance costs. As a result, our ability to conduct our business could be materially and adversely affected.
Current wording
We have in the past experienced cybersecurity incidents affecting our information technology systems as well as the information technology systems of our vendors and other third parties, but, to our knowledge, we have not experienced any material cybersecurity breaches. We expect cybersecurity threats to continue to occur in the future and we are constantly responding to these threats to infiltrate and compromise our systems and data. Our electronic transmission of personal, confidential and proprietary information to third parties with whom we have business relationships and our outsourcing of certain technology and business process functions to third parties may expose us to enhanced risk related to data security. While we have implemented secure data transmission capabilities with these third-party vendors and others with whom we do business, such capabilities may not function as intended and our vendors and third parties could still suffer data breaches that could result in the exposure of sensitive data and the infiltration of our computer systems. Our failure to effectively protect sensitive personal and/or proprietary information, whether owing to breaches of our own systems or those of our vendors and other third parties, could result in significant monetary and reputational damages, material adverse effects to our financial condition, costly litigation, or other regulatory enforcement actions. These increased risks, and expanding regulatory requirements regarding data security, including required compliance with applicable privacy and data protection laws (e.g., the GDPR, CCPA, and other state-specific privacy statutes and regulations), could expose us to data loss, monetary and reputational damages and significant increases in compliance costs. As a result, our ability to conduct our business could be materially and adversely affected.
Previous wording
Use of artificial intelligence technologies by us or third-parties on which we rely could expose us to technological, security, legal, and other risks.
Current wording
Our increasing investment in and use of artificial intelligence technologies or their use by third-parties on which we rely could expose us to technological, security, legal, and other risks.
Previous wording
Products or services offered that develop or adopt artificial intelligence (“AI”) technologies, including generative AI and machine learning, offer potential benefits (e.g., with respect to efficiency) but likewise may raise technological, security, legal and other risks and challenges that may adversely affect our operations, business, or reputation. Such risks include the misuse, inadvertent or otherwise, of personal data or other sensitive, confidential or proprietary information; flaws in our models or training datasets resulting in biased, inaccurate or unanticipated outcomes; ethical considerations regarding the use and deployment of AI technologies; potential infringement of third-party intellectual property rights or the dilution of our intellectual property; and our ability to implement appropriate governance controls to ensure the ongoing, safe deployment of AI systems. AI technologies may be misused, and that risk is increased by the relative newness of the technology, the speed at which it is being adopted, and ongoing uncertainty with respect to the laws, regulations, and standards governing its development and deployment federally, across states, and internationally. Such misuse, and a realization of the previously mentioned risks, could negatively impact our reputation, financial condition and results of operations, the demand for our products and services, otherwise cause competitive harm, and/or draw adverse legal and regulatory scrutiny. Moreover, because some AI technologies are relatively new, such as generative AI, many of the potential risks regarding their use are currently unknown.
Current wording
Products or services offered that develop or employ artificial intelligence (“AI”) technologies, including generative AI and machine learning, offer potential benefits (e.g., efficiency) but likewise may raise technological, security, legal and other risks and challenges that may adversely affect our operations, business, or reputation. Such risks include the misuse, inadvertent or otherwise, of personal data or other sensitive, confidential or proprietary information; flaws in our models or training datasets resulting in biased, inaccurate or unanticipated outcomes; ethical considerations regarding the use and deployment of AI technologies; potential infringement of third-party intellectual property rights or the dilution of our intellectual property; and our ability to implement appropriate governance controls to ensure the ongoing, safe deployment of AI systems. As we make significant investments in AI and related technology and increasingly rely on the use of AI by third parties, we may not achieve the expected operational and other benefits, or such benefits may take longer than anticipated, and our competitors may adopt AI technologies more effectively or efficiently than we do, which may adversely affect our market position and results of operations.
Previous wording
Our investment portfolio consists substantially of fixed maturity securities. As of December 31, 2024, our investment in fixed maturity securities was approximately $22.4 billion, or 75.0% of our total investment portfolio including cash and cash equivalents. As of that date, our portfolio of fixed maturity securities consisted of the following types of securities: U.S. Government securities (10.0%); state and municipal securities (10.5%); corporate securities (37.6%); asset-backed securities (17.3%); mortgage-backed securities (16.8%) and foreign government (7.8%).
Current wording
Our investment portfolio consists substantially of fixed maturity securities. As of December 31, 2025, our investment in fixed maturity securities was approximately $25.0 billion, or 75.3% of our total investment portfolio including cash and cash equivalents. As of that date, our portfolio of fixed maturity securities consisted of the following types of securities: U.S. Government securities (16.0%); state and municipal securities (7.4%); corporate securities (34.7%); asset-backed securities (15.2%); mortgage-backed securities (19.2%) and foreign government (7.5%).
Previous wording
Although the historical rates of default on state and municipal securities have been relatively low, our state and municipal fixed maturity securities could be subject to a higher risk of default or impairment due to declining municipal tax bases and revenue. Many states and municipalities operate under deficits or projected deficits, the severity and duration of which could have an adverse impact on both the valuation of our state and municipal fixed maturity securities and the issuer's ability to perform its obligations thereunder. Additionally, our investments are subject to losses as a result of a general decrease in commercial and economic activity for an industry sector in which we invest, as well as risks inherent in particular securities.
Current wording
Although the historical rates of default on state and municipal securities have been relatively low, our state and municipal fixed maturity securities could be subject to a higher risk of default or impairment due to declining municipal tax bases and revenue, particularly in the event of a recession. Many states and municipalities operate under deficits or projected deficits, the severity and duration of which could have an adverse impact on both the valuation of our state and municipal fixed maturity securities and the issuer's ability to perform its obligations thereunder. Additionally, our investments are subject to losses as a result of a general decrease in commercial and economic activity for an industry sector in which we invest, as well as risks inherent in particular securities. Similarly, our investments in foreign government fixed maturity securities expose us to currency risk, in addition to the underlying credit, interest rate and other risks.
Previous wording
We invest a portion of our investment portfolio in equity securities, merger arbitrage securities, investment funds, private equity, loans and real estate related assets. At December 31, 2024, our investment in these assets was approximately $5.5 billion, or 18.4%, of our investment portfolio, including cash and cash equivalents.
Current wording
We invest a portion of our investment portfolio in equity securities, merger arbitrage securities, investment funds, private equity, loans and real estate related assets. At December 31, 2025, our investment in these assets was approximately $5.6 billion, or 17.1%, of our investment portfolio, including cash and cash equivalents.
Previous wording
Merger and arbitrage trading securities were $1.1 billion, or 3.8% of our investment portfolio, including cash and cash equivalents at December 31, 2024. Merger arbitrage involves investing in the securities of publicly held companies that are the targets in announced tender offers and mergers. Merger arbitrage differs from other types of investments in its focus on transactions and events believed likely to bring about a change in value over a relatively short time period, usually four months or less. Our merger arbitrage positions are exposed to the risk associated with the completion of announced deals, which are subject to regulatory as well as political and other risks.
Current wording
Merger and arbitrage trading securities were $1.2 billion, or 3.7% of our investment portfolio, including cash and cash equivalents at December 31, 2025. Merger arbitrage involves investing in the securities of publicly held companies that are the targets in announced tender offers and mergers. Merger arbitrage differs from other types of investments in its focus on transactions and events believed likely to bring about a change in value over a relatively short time period, usually four months or less. Our merger arbitrage positions are exposed to the risk associated with the completion of announced deals, which are subject to regulatory as well as political and other risks.
Previous wording
Real estate related investments, including directly owned, investment funds and loans receivable, were $1.9 billion, or 6.3% of our investment portfolio, including cash and cash equivalents, at December 31, 2024. We also invest in real estate, financial services, energy, transportation and other investment funds. The values of these investments are subject to fluctuation based on changes in the economy and interest rates in general and the related asset valuations in particular. In addition, our investments in real estate related assets and other alternative investments are less liquid than our other investments.
Current wording
Real estate related investments, including directly owned, investment funds and loans receivable, were $1.9 billion, or 5.7% of our investment portfolio, including cash and cash equivalents, at December 31, 2025. We also invest in real estate, financial services, energy, transportation and other investment funds. The values of these investments are subject to fluctuation based on changes in the economy and interest rates in general and the related asset valuations in particular. In addition, our investments in real estate related assets and other alternative investments are less liquid than our other investments.
Previous wording
As an insurance holding company, our principal assets are the shares of capital stock of our insurance company subsidiaries. We have to rely on dividends from our insurance company subsidiaries to meet our obligations for paying principal and interest on outstanding debt obligations, paying dividends to stockholders and repurchasing our shares and paying corporate expenses. The payment of dividends by our insurance company subsidiaries is subject to regulatory restrictions and competitive pressures on maintaining financial strength ratings and will depend on the surplus and future earnings of these subsidiaries. During 2025, the maximum amount of dividends that can be paid without regulatory approval is approximately $1.6 billion. Future regulatory actions could further restrict our insurance subsidiaries’ ability to pay us dividends. As a result, in the future we may not be able to receive dividends from these subsidiaries at times and in amounts necessary to meet our obligations, pay dividends or repurchase shares.
Current wording
As an insurance holding company, our principal assets are the shares of capital stock of our insurance company subsidiaries. We have to rely on dividends from our insurance company subsidiaries to meet our obligations for paying principal and interest on outstanding debt obligations, paying dividends to stockholders and repurchasing our shares and paying corporate expenses. The payment of dividends by our insurance company subsidiaries is subject to regulatory restrictions and competitive pressures on maintaining financial strength ratings and will depend on the surplus and future earnings of these subsidiaries. During 2026, the maximum amount of dividends that can be paid without regulatory approval is approximately $1.4 billion. Future regulatory actions could further restrict our insurance subsidiaries’ ability to pay us dividends. As a result, in the future we may not be able to receive dividends from these subsidiaries at times and in amounts necessary to meet our obligations, pay dividends or repurchase shares.
Previous wording
Certain provisions in our organizational documents may have the effect of hindering, delaying or preventing third party takeovers and thus may prevent our stockholders from receiving premium prices for their shares in an unsolicited takeover or make it more difficult for third parties to replace our current management.
Current wording
Certain provisions in our organizational and other documents (such as voting and other arrangements with Mitsui Sumitomo Insurance Co., Ltd.) may have the effect of hindering, delaying or preventing third party takeovers and thus may prevent our stockholders from receiving premium prices for their shares in an unsolicited takeover or make it more difficult for third parties to replace our current management.
Previous wording
•our classified board of directors and the ability of our board to increase its size and to appoint directors to fill newly created directorships;
Current wording
•our classified board of directors and the ability of our board to increase its size and to appoint directors to fill newly created directorships; and
Previous wording
•the requirement that the holders of 80% of our shares must approve mergers and other transactions between us and the holder of 5% or more of our shares, unless the transaction was approved by our board of directors prior to such holder's acquisition of 5% of our shares; and
Current wording
•the requirement that the holders of 80% of our shares must approve mergers and other transactions between us and the holder of 5% or more of our shares, unless the transaction was approved by our board of directors prior to such holder's acquisition of 5% of our shares.
Rearranged current paragraphs (1)
Current report — wording carried from elsewhere
In addition, AI technologies may be misused, and that risk is increased by the relative newness of the technology, the speed at which it is being adopted, and ongoing uncertainty with respect to the laws, regulations, and standards governing its development and deployment federally, across states, and internationally. Such misuse, and a realization of the previously mentioned risks, could negatively impact our reputation, financial condition and results of operations, the demand for our products and services, otherwise cause competitive harm, and/or draw adverse legal and regulatory scrutiny. Moreover, because some AI technologies such as generative AI are relatively new and rapidly evolving, many of the potential risks regarding their use are currently unknown. Our investment in and use of AI technologies and the introduction of new products and services may also expose us to new or enhanced risks, particularly in areas where we have less experience or our existing internal control systems may be insufficient, which could require us to make substantial expenditures or subject us to legal liability, heightened regulatory scrutiny and brand or reputational harm.
Rearranged previous paragraphs (1)
Previous report — wording carried elsewhere
Our business is highly dependent upon our employees' ability to perform necessary business functions in an efficient and uninterrupted fashion. A shutdown of, or inability to access, one or more of our facilities, a power outage or a failure of one or more of our information technology, telecommunications or other computer systems could significantly impair our employees' ability to perform such functions on a timely basis. In the event of a disaster such as a natural catastrophe, terrorist attack or industrial accident, physical or electronic security breaches, such as breaches by computer hackers, the infection of our systems