Directors and officers (D&O) insurance explained

Directors and officers (D&O) insurance pays defense costs and covered settlements or judgments when directors, officers or the organization itself are sued or investigated over management decisions: governance, finances, disclosures, mergers, hiring leadership, compliance. It is a claims-made policy built from up to three coverage parts, and it sits beside, not inside, your general liability, employment practices and fiduciary policies.

Who is insured and what triggers the policy

A D&O policy covers three groups. The insured persons are past, present and future directors and officers, and usually their spouses and estates. Some forms add employees, either for any claim or only for securities claims. The organization itself is covered for some claims, depending on the type of entity. And the policy defines wrongful acts broadly: any actual or alleged act, error, omission, misstatement, neglect or breach of duty by an insured person in that capacity.

A claim is not only a lawsuit. Policy definitions usually include a written demand for money or relief, a civil, criminal, administrative or regulatory proceeding, and often a subpoena or a formal investigation of an insured person. Better forms add a derivative demand letter (a shareholder asking the board to sue its own members), and some cover costs of responding to an investigation before any charge. Read the claim definition: it decides when your notice duty starts.

The three coverage parts, briefly

IRMI describes the structure this way:

• Side A protects directors and officers personally when the company cannot or will not indemnify them, because of legal restrictions or insolvency.
• Side B reimburses the company when it indemnifies its directors and officers.
• Side C is entity coverage, protecting the company itself against claims made directly against it, which IRMI notes is especially relevant to securities claims against public companies.

We explain how the retention, limits and tower interact in D&O Sides A, B and C explained. The short version: Side A is the part that keeps a director's house safe, and it often has no retention.

Why corporate law and insurance fit together

Companies can usually indemnify their directors and officers, and most bylaws promise to. But the law limits it, which is why insurance exists. Delaware's General Corporation Law, 8 Del. C. § 145, is an example, because so many companies are incorporated there. For third-party suits, a company may indemnify expenses, judgments, fines and settlements if the person acted in good faith and in a manner reasonably believed to be in the corporation's best interests. For suits brought by or on behalf of the corporation, such as derivative suits, indemnity is narrower and generally reaches expenses, not judgments or settlements paid to the company. Section 145(g) also lets a corporation buy insurance for its directors and officers whether or not it could indemnify the underlying liability. Other states have their own versions; see Delaware and your own state's corporation code, and ask your corporate lawyer which applies.

Public companies have a further reason. Item 510 of Regulation S-K (17 CFR 229.510) has issuers tell investors that, in the SEC's opinion, indemnification of directors, officers and controlling persons for Securities Act liabilities is against public policy and therefore unenforceable. Insurance fills part of that gap.

What D&O covers in practice

Typical claim sources, by type of organization:

Cornerstone Research and Stanford counted 207 securities class actions filed in federal and state courts in 2025, and its 2025 year-in-review report put the likelihood of a core filing against a U.S. exchange-listed company at 3.5%. Those numbers describe public companies. For most small and mid-size buyers the claims are less visible but not rare: a co-founder dispute, an investor who says a financial statement was wrong, a lender who says it was misled. See D&O insurance for private companies and startups and D&O insurance for nonprofit boards.

Key policy terms and how they work

• Claims-made with a retroactive or continuity date. The claim must be made and reported during the policy period or extended reporting period. Many D&O forms rely on a pending and prior litigation date, which excludes litigation already under way when coverage was first bought; see prior acts coverage and retroactive dates.
• Defense costs reduce the limit. IRMI notes that D&O policies usually have no explicit duty to defend for for-profit insureds, and that defense spending erodes the limit. The insured chooses counsel (with insurer consent) and the insurer advances costs. Compare defense costs inside vs outside policy limits: why it matters.
• Conduct exclusion. Fraud, dishonesty, and personal profit are excluded, usually only after a final, non-appealable adjudication, so the insurer advances defense until then. A good form has severability: one person's wrongdoing is not imputed to the rest.
• Bodily injury and property damage exclusion. IRMI confirms D&O policies exclude these; they belong on the general liability policy.
• Insured versus insured exclusion. Claims by one insured against another are excluded, with carve-backs for derivative suits, bankruptcy trustees and whistleblowers. See The insured vs insured exclusion in D&O policies.
• Prior and pending litigation. The exclusion bars coverage for claims tied to lawsuits underway before the policy starts. IRMI calls it a "burning building" exclusion, and notes that insurers sometimes agree to remove it at renewal.
• Other exclusions. ERISA and benefit-plan fiduciary claims (use fiduciary liability insurance for employee benefit plans), employment claims (use Employment practices liability insurance (EPLI): what it covers), pollution, and professional services exclusions on the entity side.
• Consent to settle. The hammer clause in many forms limits what the insurer pays if the insured refuses a settlement the insurer recommends; see the hammer clause: what happens if you refuse a settlement.
• Change in control. If the company is acquired or merges, the policy typically stops covering wrongful acts after the transaction. The buyer commonly arranges a run-off, a tail for pre-closing acts, and merger agreements often specify its length. See tail coverage and extended reporting periods.

A hypothetical claim

Say a privately held manufacturer with four directors has a $2 million D&O policy, with a $25,000 retention on entity coverage. A minority shareholder files a derivative suit alleging the board approved a related-party lease at above-market rent.

• Defense: the company can indemnify the directors' defense expenses, and Side B reimburses it above the retention. Say expenses reach $350,000, so the insurer pays $325,000 and the limit erodes by that amount.
• Indemnification limits: under a rule like Delaware's, the company generally cannot indemnify a settlement paid to itself in a derivative suit. That is where Side A responds, usually with no retention.
• Settlement: the case settles for $600,000, funded by the insurer. About $1,075,000 of the limit remains for the policy year, shared with every other claim.
• A separate claim: if a former CFO sues for wrongful termination at the same time, that belongs on the employment practices policy, not this one.

The figures are hypothetical, not typical, and an actual outcome depends on the policy wording and the facts.

Buying checklist

1. Match the form to the entity. Public, private and nonprofit D&O are different products; see the guides above.
2. Confirm the "insured person" and "claim" definitions. Check whether investigations, subpoenas and derivative demands trigger coverage.
3. Look at Side A. Ask whether a separate Side A or Side A difference-in-conditions layer is worth adding for higher limits.
4. Check the application. Statements about financials, litigation and known circumstances become warranties; accuracy matters (see insurance applications: why accuracy matters and what misrepresentation costs).
5. Set limits with your broker's benchmarking data, your assets and your investors' or lenders' requirements, not a rule of thumb.
6. Bundle with care. Many small-business buyers get D&O, EPLI, fiduciary and crime in a Management liability packages: D&O, EPLI, fiduciary and crime with shared limits, which cuts premium but can exhaust the limit across lines.
7. Plan the exit. Know the change-in-control and extended reporting terms before a sale.

Market conditions

Marsh's Global Insurance Market Index, released July 23, 2026, reported U.S. financial and professional lines rates up 1% in Q2 2026 after a 2% decrease in Q1. Broker indexes reflect the accounts they place, and pricing for small accounts can move differently, so use it as background, not a quote.

Key takeaways

• D&O is a claims-made policy for management decisions, with up to three coverage parts that protect individuals, the company's indemnification and the entity.
• Defense costs usually erode the limit, and the insurer usually advances rather than defends.
• It excludes bodily injury and property damage, and employment and benefit-plan claims belong on other policies.
• Corporate law limits indemnification of some claims, especially derivative-suit settlements, which is why Side A matters.
• Read the claim definition, exclusions, change-in-control terms and application warranties before you buy or renew.