A founder-CEO quietly signs a contract sending company work to a side business she owns. A controlling investor blocks a funding round so he can buy more of the company at a lower price. Two co-founders vote to push out the third, then pay themselves bonuses. Each of these moves can be a breach of fiduciary duty.
A fiduciary duty is the legal obligation to put the company and its owners ahead of your own interests. Founders, directors, and controlling shareholders all carry this duty.
When someone in one of those roles uses their position for personal gain at the expense of the company or its other owners, they may have broken that duty, and they can be sued for it. This guide explains what a breach of fiduciary duty means in a startup, who owes the duty, the most common ways it gets broken, and what a wronged founder or investor can do. The goal is to help you spot the problem early, because acting quickly usually protects you better than waiting.
What Is a Fiduciary Duty
A fiduciary duty is a duty of trust. When the law makes you a fiduciary, other people are relying on you to act in their interest, not your own.
In a startup, this duty exists because some people hold power over the company and its money, while others depend on them. The law requires those in control to act fairly, instead of enriching themselves at everyone else’s expense.
A fiduciary duty generally breaks down into two core obligations:
- The duty of loyalty. You must put the company’s interests ahead of your personal interests. No secret self-dealing, no taking company opportunities for yourself.
- The duty of care. You must make decisions carefully and on an informed basis, the way a sensible person would when handling something important.
When either duty is broken, the result can be a breach of fiduciary duty claim.
Who Owes a Fiduciary Duty in a Startup
Not everyone in a company is a fiduciary, but the people with power usually are. In most startups, fiduciary duties are owed by:
- Directors, who sit on the board and make major decisions for the company.
- Officers, such as the CEO and CFO, who run day-to-day operations.
- Controlling shareholders mean anyone whose ownership gives them real control over the company’s decisions.
Here is the part that surprises many first-time founders: the moment you bring on outside investors, you become a fiduciary to them. As a founder who controls the company, you now owe duties to the people who bought a piece of it, even though you started it yourself.
While these principles apply nationwide, New Jersey courts closely examine conflicts of interest, self–dealing transactions, and conduct that harms minority owners. In New Jersey, startups and closely held companies’ breach of fiduciary duty claims often overlap with shareholder oppression disputes and other business-owner conflicts.
| Role | Owes a duty to | Why |
| Director | The company and its shareholders | They make decisions on everyone’s behalf |
| Officer (CEO, CFO) | The company | They run the business day-to-day |
| Controlling shareholder | Minority shareholders | Their control can be used to harm others |
How a Breach of Fiduciary Duty Happens
Once you know who owes the duty, it is easier to see how it gets broken. A breach of fiduciary duty usually happens when a person in a position of trust puts their own interest first, and most violations fall into a few clear patterns.
Self-Dealing and Taking Company Opportunities
Self-dealing is the classic breach. It happens when a fiduciary is on both sides of a deal and benefits personally.
For example, a founder-CEO steers a company contract to another business she secretly owns, or sells company assets to herself at a low price. Unless the deal was fully disclosed and approved by neutral parties, this is a textbook duty-of-loyalty problem.
A related breach is taking a company opportunity. If a director learns about a valuable deal because of their role, they generally cannot take it for themselves and cut the company out. Using confidential company information, funds, or property for personal benefit is a breach for the same reason.
Freezing Out Other Owners
When those in control use their power to squeeze out a minority owner through termination, board removal, or cutting off information, that conduct can breach fiduciary duties at the same time it creates a shareholder oppression claim.
In closely held startups, freeze-out tactics often target minority founders or early investors who lack voting control. Examples include removing a founder from employment, excluding them from key meetings, withholding financial information, refusing distributions, or diluting ownership through unfair transactions.
In New Jersey, these situations frequently support shareholder oppression claims alongside breach of fiduciary duty allegations. Courts may examine whether those in control frustrated the reasonable expectations of minority owners or used their authority primarily for personal gain rather than the benefit of the company.
Warning Signs to Watch For
If you are a founder or investor who is not in control, certain behaviors are early signals that a breach of fiduciary duty may be happening:
- Decisions that benefit one insider while harming the company.
- Contracts with companies secretly owned by a director or officer.
- Sudden refusal to share financial records or board information.
- A controlling owner blocking a financing round for personal advantage.
- Company money or assets being used for personal purposes.
- Major decisions were made without proper board approval or disclosure.
Any one of these can have an innocent explanation. But when you see a pattern, it usually means it is time to ask questions and get advice.
What the Law Considers: Duty of Loyalty vs. Duty of Care
To understand whether conduct crosses the line, it helps to see how the two duties differ.
| Category | Duty of Loyalty | Duty of Care |
| What it requires | Put the company first, no self-dealing | Make informed, careful decisions |
| Typical breach | Secret personal profit, conflicts of interest | Reckless or uninformed decisions |
| Common defense | Full disclosure and neutral approval | The business judgment rule |
The duty of loyalty is taken very seriously because it involves putting personal gain ahead of the company. Courts look hard at any deal where an insider benefited.
The duty of care is judged more forgivingly: under the business judgment rule, courts usually will not second-guess an honest, informed decision just because it turned out badly. That protection falls away when a decision is made carelessly or with a hidden conflict.
How a Breach of Fiduciary Duty Is Proven
Proving a breach is harder than describing one. A claim generally requires showing three things:
- A duty existed. The defendant was a fiduciary, such as a director, officer, or controlling shareholder.
- The duty was breached. The defendant acted disloyally or carelessly, for example, through self-dealing or a conflict of interest.
- The breach caused harm. The company or the owner suffered a real loss, or the fiduciary gained an improper benefit.
If any piece is missing, the claim usually fails. This is why these cases turn heavily on documents: emails, board minutes, contracts, and financial records that show what the fiduciary actually did.
Direct vs. Derivative Claims
Once a breach looks provable, the next question is who actually sues, and that depends on who was harmed. There are two paths:
- A direct claim is brought by an owner who was personally harmed, such as a minority shareholder frozen out of their rights.
- A derivative claim is brought on behalf of the company itself when the company was harmed. Any recovery generally goes back to the company, not the individual who filed.
A lawyer will look closely at which path applies early on, because choosing the wrong one can sink an otherwise strong case.
Remedies: What a Court Can Order
If a breach of fiduciary duty is proven, the next question is what the wronged party can recover. Depending on the facts, a court may order:
- Money damages to compensate for the loss caused by the breach.
- Disgorgement, which forces the fiduciary to give up profits they wrongly gained.
- Rescission, which unwinds an unfair transaction.
- Removal of the fiduciary from their position.
- An injunction ordering the conduct to stop.
In some situations, especially where a breach overlaps with a freeze-out, a court may order a buyout of the wronged owner’s shares.
For Founders and Startup Investors
These rules are not just for large corporations. They apply to small startups from the day the first outside investor comes on board, and founders are often surprised by how early the duties attach. A few situations come up again and again:
- Founder conflicts, where one founder routes business or money to a side venture and creates a potential breach of fiduciary duty.
- Investor control, where a controlling investor uses their power to benefit themselves at the company’s expense.
- Board decisions, where directors approve deals they personally benefit from without disclosure.
The lesson is simple. The best protection comes before any dispute: clear governance, full disclosure of conflicts, and a well-drafted shareholders’ agreement that sets expectations from the start. To see how related disputes unfold, read our guide on startup shareholder disputes.
For Biotech and Life Sciences Companies
Life sciences startups face these issues with higher stakes, because so much of the value sits in a few patents and a small group of key people. Suppose one director also runs a lab that wants to license the startup’s core technology.
If that director pushes the board to approve a cheap license to their own lab without disclosing the conflict, that is a serious duty–of–loyalty problem, and because the technology may be the company’s main asset, the harm can be far larger than in an ordinary business.
Biotech and life sciences companies also face fiduciary duty risks involving patent ownership, licensing rights, and university spinout transactions. Founders, directors, and investors often maintain relationships with research institutions, laboratories, or competing ventures that can create conflicts of interest.
For example, disputes may arise when intellectual property developed within a startup is licensed, assigned, or transferred under terms that primarily benefit insiders rather than the company.
Similar issues can occur during university spinouts, sponsored research arrangements, or technology licensing negotiations. Because intellectual property is often the company’s most valuable asset, even a single conflicted transaction can create significant exposure.
When to Speak With a Lawyer
If anything in this guide sounds familiar, the timing of your next step matters, because your options are widest before a dispute hardens. It is worth seeking advice if you believe an insider is profiting at the company’s expense, a director or officer has an undisclosed conflict, you have been denied access to financial or board information, or company funds are being misused.
Acting early gives you more options and a stronger position. A short conversation with a lawyer can tell you whether what you are seeing rises to the level of a breach of fiduciary duty and what steps protect your position.
How Crowley Law Helps
Crowley Law LLC advises founders, directors, and investors on fiduciary duties and the disputes that arise when those duties are broken. We help owners understand their rights and help companies build governance and disclosure practices that prevent these problems before they start.
Whether you believe a duty has been broken or you want to protect your company from a future claim, experienced counsel helps you understand your position. Contact Crowley Law to speak with an attorney about your situation.
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Frequently Asked Questions (FAQs)
| Question | Answer |
| What is a breach of fiduciary duty in a startup? | It happens when a director, officer, or controlling shareholder uses their position for personal gain at the expense of the company or its other owners. Common examples include self-dealing, taking a company opportunity, or misusing company funds. |
| Do founders owe fiduciary duties to investors? | Yes. Once outside investors come on board, a founder who controls the company generally owes fiduciary duties to those investors. You cannot use your control to benefit yourself at their expense, even though you started the company. |
| What is the difference between the duty of loyalty and the duty of care? | The duty of loyalty requires you to put the company ahead of your personal interests, with no secret self-dealing. The duty of care requires you to make informed, careful decisions. Loyalty violations are judged strictly, while honest, informed decisions are usually protected even if they turn out poorly. |
| What can I recover in a breach of fiduciary duty claim? | Depending on the facts, a court may award money damages, force the fiduciary to give up profits they wrongly gained, unwind an unfair deal, remove the fiduciary, or order the conduct to stop. In some cases involving a freeze-out, a court may order a buyout of the wronged owner’s shares. |
| How do I prove a breach of fiduciary duty? | You generally need to show three things: a fiduciary duty existed, the duty was broken, and the breach caused harm or gave the fiduciary an improper benefit. These cases rely heavily on documents such as emails, board minutes, contracts, and financial records. |