Purchasing a D&O insurance policy is only the first step in protecting directors and officers from personal liability. What ultimately determines the value of that protection is how the policy performs when a claim is actually made — and D&O claims are notorious for generating coverage disputes that can be as contentious, expensive, and unpredictable as the underlying litigation itself. Insurers defending D&O coverage claims have significant financial incentives to narrow coverage through careful interpretation of policy terms, and the law governing D&O coverage disputes is complex and varies materially across jurisdictions. Directors and officers who understand the common pitfalls of D&O claims — before a claim arises — are far better positioned to preserve their coverage rights and to navigate the claims process effectively.

The most important thing a director or officer should know about D&O insurance is that D&O policies are claims-made policies, not occurrence-based policies. An occurrence-based policy covers claims arising from events that occurred during the policy period, regardless of when the claim is made. A claims-made policy covers claims that are first made against the insured during the policy period, regardless of when the underlying wrongful act occurred. This distinction has enormous practical consequences. If a director is sued in 2026 for alleged misconduct that occurred in 2022, the relevant policy is the 2026 policy — the policy in force when the claim is made — not the 2022 policy that was in force when the alleged wrongful act occurred. This means that lapses in D&O coverage create uncovered gaps: if the company had no coverage in 2026, the claim is not covered, even if coverage existed in 2022.

Reporting Requirements and the Claims-Made Trigger

Because D&O policies are claims-made, the timing of notice to the insurer is critical. Most policies require that claims be reported to the insurer as soon as practicable, and many impose specific reporting deadlines — such as within 60 days of the policy period end — for claims made late in the policy period. Failure to provide timely notice can result in a denial of coverage, even for a covered claim. The definition of ‘claim’ under the policy determines what must be reported: most policies define claim broadly to include not only lawsuits and formal regulatory proceedings but also written demands for monetary relief, criminal complaints, SEC subpoenas, and formal investigations. Directors and officers who receive any communication that might constitute a claim — including a threatening letter, an SEC inquiry, or a government subpoena — should immediately consult with counsel and report the matter to the company’s risk management or legal department for timely notification to the D&O insurer.

Most policies also allow reporting of ‘circumstances’ that the insured reasonably believes may give rise to a future claim, even before any formal claim has been made. Timely reporting of circumstances — sometimes called a ‘notice of circumstances’ — can lock in coverage under the current policy for any claim that later arises from those circumstances, even if the claim is not made until a subsequent policy period. This provision is particularly valuable at the end of a policy period when the company is switching insurers: circumstances reported under the expiring policy will be covered under that policy even if the claim is made under the new policy from a different insurer. Failure to report known circumstances before a policy expires can result in a future claim falling into a coverage gap between the old and new policies.

Advancement of Defense Costs

One of the most valuable features of a D&O policy — and one of the most frequently litigated — is the obligation to advance defense costs to insured persons during the pendency of a covered claim, before the claim is resolved and before it has been determined whether the claim will ultimately be covered. Advancement is critical because D&O claims can take years to resolve, and the cost of defending them can be enormous: securities class actions routinely generate defense costs in the millions to tens of millions of dollars, and regulatory investigations can be equally expensive. Without advancement, directors and officers would be required to fund their own defenses out of pocket pending a coverage determination, which is precisely the financial harm that D&O insurance is designed to prevent.

Most D&O policies provide for advancement of defense costs on a current basis — typically within 30 to 60 days of the insured’s submission of defense invoices — subject to the insurer’s right to reserve its rights regarding coverage. A reservation of rights letter is an insurer’s notification that it is advancing costs but disputes its coverage obligation and reserves the right to seek reimbursement of advanced costs if coverage is ultimately determined not to apply. Receiving a reservation of rights letter is an important signal: it means the insurer has identified coverage issues that could affect its ultimate obligation to pay. Insureds who receive reservation of rights letters should promptly retain independent coverage counsel — counsel who represents their interests in the coverage dispute, not the company’s general counsel who may have conflicting obligations — to assess the coverage issues identified and to protect the individuals’ rights.

Disputes over defense costs advancement arise most commonly in connection with the insurer’s assertion that the retention has not been satisfied, that the claim is not covered under the policy (particularly under the fraud or intentional misconduct exclusion), that the claimed defense costs are not reasonable or necessary, or that the insured’s chosen counsel’s hourly rates exceed the policy’s billing guidelines. Many D&O policies include billing guidelines that specify maximum hourly rates, prohibit certain billing practices (block billing, excessive staffing), and require insurer consent to defense counsel. These guidelines are frequently a source of friction between insureds and insurers: defense counsel in major securities litigation routinely bill at rates far above the guidelines established in standard D&O policies. Companies that anticipate high-stakes litigation should negotiate broader billing guidelines at the time of policy placement.

The Insured Versus Insured Exclusion

The insured versus insured (IvI) exclusion is one of the most frequently litigated exclusions in D&O insurance. As described in the D&O Insurance Overview, the exclusion eliminates coverage for claims brought by one insured (typically the company) against another insured (typically a former director or officer). The exclusion was designed to prevent collusive claims — situations where a company files suit against its own officers as a pretextual vehicle for accessing D&O coverage for losses that the company should bear directly. Over time, however, the exclusion has been interpreted by some insurers to bar coverage for legitimate, non-collusive claims, and the resulting litigation has produced a complex body of case law that varies significantly across jurisdictions.

The most significant coverage issue involving the IvI exclusion arises in the context of shareholder derivative suits. A derivative suit is technically brought by a shareholder on behalf of the corporation, meaning that the corporation (an insured entity) is nominally a plaintiff in a suit against the director or officer defendants (also insureds). Some insurers have argued that this makes the entire derivative suit an insured-versus-insured claim that triggers the exclusion. The better view — and the view adopted by courts in most jurisdictions — is that derivative suits are not barred by the IvI exclusion because the derivative plaintiff is a shareholder acting on behalf of the corporation to remedy an injury to the corporation, not the corporation itself filing a collusive claim. Most well-negotiated D&O policies explicitly carve derivative suits out of the IvI exclusion, and the absence of such a carve-back is a significant policy deficiency that should be addressed at renewal.

Other common IvI issues arise in bankruptcy proceedings (where a bankruptcy trustee or estate — arguably a successor to the insured corporation — files claims against former directors and officers), in government-initiated enforcement actions (where a regulator takes control of an insured financial institution and then files claims against former officers), and in employment-related claims by senior officers against the company. Each of these scenarios requires careful analysis of the specific policy language and the applicable law, which is why experienced coverage counsel should be retained promptly when any IvI coverage question arises.

Allocation Between Covered and Uncovered Losses

D&O claims often involve a mix of covered and uncovered claims, covered and uncovered defendants, and covered and uncovered loss components. Allocation — the process of dividing total settlement costs or defense costs between covered and uncovered portions — is one of the most complex and contentious aspects of D&O claims resolution. Insurers are entitled to cover only the portion of loss that is attributable to covered claims and covered persons; they are not required to pay the portion attributable to the company’s uncovered direct liability, to uncovered individual defendants, or to conduct falling under an exclusion.

The allocation methodology varies widely across policies and jurisdictions. Some policies specify a methodology (such as pro-rata allocation based on the relative number of covered versus uncovered defendants, or relative exposure), while others are silent on methodology and leave the allocation to negotiation or litigation. Courts have applied various approaches: some require that the entire loss be allocated to covered claims wherever possible (a ‘relative benefit’ or ‘relative exposure’ standard that favors insureds); others apply a strict pro-rata approach that can significantly reduce the insurer’s coverage obligation. Because allocation disputes can consume a substantial portion of the available D&O coverage, companies should negotiate favorable allocation provisions at the time of placement — for example, provisions requiring that any allocation be made in a manner that gives full consideration to the relative benefit to the covered persons from the covered versus uncovered claims.

Conduct Exclusions and the Final Adjudication Standard

The fraud, dishonesty, and personal profit exclusions in D&O policies present a fundamental tension: the very claims for which insured directors and officers most urgently need defense cost advancement are precisely the claims that the conduct exclusions are designed to exclude from coverage. A securities fraud class action or an SEC enforcement action alleging that the CEO deliberately misrepresented the company’s financial condition will almost certainly trigger a coverage dispute under the fraud exclusion, at exactly the time when the CEO’s legal fees are mounting and the insurer is looking for reasons not to pay.

The most insured-protective approach is a ‘final adjudication’ standard for conduct exclusions, which provides that the exclusion does not apply unless and until there has been a final, non-appealable judicial determination that the excluded conduct actually occurred. This means the insurer must fund the defense through the entire proceeding — including trial, appeals, and any remand — unless and until the excluded conduct is conclusively established. Policies with a weaker trigger — such as an ‘admission’ standard (any conduct for which the insured has admitted culpability in any proceeding), a ‘finding’ standard (any judicial finding of excluded conduct, even a preliminary or reversible finding), or an ‘allegation’ standard — provide materially weaker protection and should be rejected in favor of the final adjudication standard wherever possible. Reviewing and strengthening conduct exclusion triggers is one of the highest-value activities that coverage counsel can perform in the policy placement process.

Cooperation Obligations and Their Limits

D&O policies impose cooperation obligations on insured persons: they must cooperate with the insurer’s investigation of the claim, provide relevant information and documentation, submit to examination under oath if requested, and avoid admitting liability or settling claims without the insurer’s consent. Violation of cooperation obligations can provide the insurer with grounds to deny coverage, and the insurer’s consent requirement for settlements means that insurers have a meaningful voice in how D&O claims are resolved — even in cases where the insured, not the insurer, would bear the primary financial exposure.

The cooperation obligation creates complex tensions when the interests of the insured and the insurer diverge. An insured who believes that a quick settlement serves her interests may find that the insurer refuses consent because it believes the claim can be defeated at lower cost. An insured who wishes to assert a particular legal theory may find that the insurer has retained panel counsel who prefer a different approach. These tensions are manageable in well-structured D&O programs, but they require proactive communication between the insured, coverage counsel, and the insurer from the earliest stages of the claim. Waiting until a settlement is imminent to brief the insurer on the litigation posture is a recipe for coverage conflict.

When a D&O claim arises, directors and officers should take several immediate steps: retain independent personal counsel (not just the company’s counsel, who may have conflicting duties); ensure that the claim is properly and timely reported to all relevant D&O insurers; request advancement of defense costs from the company and the insurer; review the policy with coverage counsel to identify potential coverage issues; and avoid making any public statements, providing documents to the insurer, or agreeing to any examination under oath without consulting coverage counsel. The claims process is adversarial in ways that the placement process is not, and the insured’s interests must be represented by counsel who understands both the underlying litigation and the coverage framework.

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