Side A, B and C: How D&O Coverage Is Actually Structured

Most people who buy Directors and Officers insurance think of it as a single policy that protects the company's leadership. In practice, a D&O policy is really three separate coverages bundled into one document, each with its own trigger, its own intended beneficiary, and its own behavior under stress. They are conventionally labeled Side A, Side B, and Side C. Understanding how the three fit together, and where they compete with each other for the same dollars, matters more than almost any other single fact about how D&O actually performs when a real claim arrives.

Side A: Protection for the Individual When the Company Cannot Step In

Side A responds when an individual director or officer faces a covered claim and the company does not, or cannot, indemnify them. That gap arises in a few recognizable situations. The most obvious is insolvency: a bankrupt or deeply distressed company frequently cannot lawfully advance defense costs or indemnify anyone, precisely the moment when trustees and creditor committees are most likely to be scrutinizing the decisions leadership made on the way down. Indemnification can also be unavailable for structural reasons, such as a derivative suit brought by the company or its shareholders against a director, where the company is the plaintiff and cannot simultaneously indemnify the defendant. And in some cases indemnification is simply refused, whether because the board disputes the individual's conduct or because corporate formalities were never followed.

Whatever the reason, Side A pays the individual directly, without the layer of the corporate balance sheet standing in between. This is why experienced directors, particularly independent and outside directors who did not create the company's problems but can still be named in a lawsuit over them, care so much about how a program is built. Side A is the coverage that protects their personal assets when everything else in the corporate structure has failed them.

Side B: Reimbursing the Company for Indemnifying Its Own People

Side B is the workhorse of most D&O programs, even though it gets less attention than Side A. It reimburses the company itself after the company has indemnified a director or officer for a covered claim. Most corporate bylaws and state law permit, and often require, companies to indemnify their leaders for good-faith conduct within the scope of their duties. When the company writes that check, Side B is what reimburses the company for it.

Because Side B involves the company as the actual insured making the claim, this is where the policy's retention, the amount the insured bears before the policy responds, generally sits. Side A claims are typically written with no retention, or a very small one, on the theory that an individual should not be forced to self-fund defense of a claim the company failed to indemnify. Side B claims, by contrast, run through a retention the company absorbs before reimbursement begins, similar in concept to a deductible on a property policy. In the day-to-day life of most D&O programs, especially at companies with reasonably healthy governance and no insolvency exposure, Side B is the provision doing the actual work.

Side C: Coverage for the Entity, With a Different Scope for Public and Private Companies

Side C extends coverage to the organization itself, not just to its individual leaders, for certain claims made directly against the entity. Here is where the scope diverges sharply depending on what kind of company is buying the policy. For a publicly traded company, Side C entity coverage is typically narrowed to securities claims, reflecting the reality that public companies already carry other lines for most other exposures and that securities litigation is the dominant entity-level risk regulators and plaintiffs' firms pursue.

For a private company or a nonprofit, Side C is usually written far more broadly, extending to most of the same wrongful acts covered for individuals, since private companies do not face securities class actions in the same way and instead face claims from investors, lenders, competitors, regulators, and other stakeholders that name the entity alongside its leaders as a matter of course. Reading the entity coverage grant carefully, and understanding exactly which definition of "claim" and "wrongful act" applies to the organization versus the individuals, is one of the more consequential things a board or a broker can do when structuring a program.

The Shared Limit Problem: Entity and Individuals Competing for the Same Dollars

Most D&O policies are written with a single, shared aggregate limit across Sides A, B, and C, rather than three separate pots of money. That structure has a real consequence: if a large claim against the entity under Side C consumes a substantial share of the limit, less remains available to protect individual directors and officers under Side A or to reimburse the company under Side B if a second claim arrives later in the policy period. In a bankruptcy or a severe financial distress scenario, this dynamic becomes acute, because the entity, the company's own indemnification obligations, and individual directors can all be pursuing the same finite limit at the same time, sometimes in the same litigation.

This is precisely the scenario that dedicated, non-shared Side A protection is designed to solve, and it is why the structure of a program, not just its overall limit, deserves attention from anyone responsible for governance.

Side A DIC Excess: A Layer That Sits Above the Traditional Program

Many organizations, particularly those with outside directors, private equity involvement, or elevated bankruptcy risk, layer a separate Side A Difference-in-Conditions policy on top of their traditional D&O program. In broad terms, this kind of policy responds only to individual directors and officers, not to the entity, and only after the underlying Side A coverage in the traditional program is exhausted or fails to respond for some reason, such as the underlying insurer disputing the claim or becoming insolvent itself. Because it sits outside the shared limit structure described above, it is specifically insulated from competition with entity-level or Side B claims. Describing it qualitatively rather than by limit: it functions as a dedicated backstop for individuals, distinct from and generally broader than the Side A coverage embedded in the primary tower, and it is a structural feature boards should understand exists even before discussing what size it should be.

Priority of Payments: What Happens When the Limit Runs Short

Because Sides A, B, and C typically draw from a shared limit, most D&O policies include a priority-of-payments provision specifying the order in which available proceeds are paid if the limit is insufficient to cover everything being claimed at once. The conventional order places Side A payments to individuals first, ahead of Side B reimbursement to the company and Side C payments to the entity. This provision exists specifically to prevent a distressed or bankrupt company, or its creditors, from consuming the limit before individual directors and officers can be protected. Whether a policy includes a strong priority-of-payments clause, and how it is worded, is a meaningful point of differentiation between D&O forms that otherwise look similar on the surface.

Severability: Whose Knowledge and Whose Conduct Counts

D&O applications and policies often contain representations and conduct-based exclusions, for example excluding coverage for fraud or for matters known before the policy began. A severability provision determines whether the knowledge or misconduct of one insured person can be imputed to others, or whether each individual is treated separately when the insurer evaluates whether an exclusion applies. Full severability, where innocent directors and officers are protected from the misconduct or misrepresentations of others, is generally more favorable to individual insureds than a policy that imputes knowledge broadly across the insured group. This is a provision worth reading closely rather than assuming, since severability language varies meaningfully between carriers and forms.

What a Board Should Actually Ask About

Given this structure, a board reviewing its D&O program is better served asking about architecture than about premium alone. Worthwhile questions include: is the limit shared across all three sides, and if so, is there dedicated Side A protection sitting outside that shared structure; how does the entity coverage under Side C differ in scope from the individual coverage under Sides A and B; what does the priority-of-payments provision actually say, and has it been tested or negotiated rather than accepted as boilerplate; is severability full or partial, and does that matter given the makeup of the board; and where does the retention sit, and who is responsible for satisfying it in practice. None of these questions require knowing a specific dollar figure to be useful, and all of them reveal more about how the policy will behave in a real dispute than the headline limit does.

The structure of a D&O policy is not a technicality to skim past on the way to the premium; it is the mechanism that decides who gets paid, in what order, and under what conditions when a real claim tests the program. Coverage is always subject to the terms of the policy actually issued, and those terms differ meaningfully between carriers even when the marketing language sounds the same. If you would like help comparing how different insurers structure Side A, B, and C for a company like yours, our team is glad to walk through the options and help you request quotes from carriers that specialize in management liability.

General information only. Coverage is governed by the terms of the policy actually issued. This article is not legal advice.