The Prevention Doctrine Bites Back: Why Delaware’s $2.35 Billion Verisk Order is a Lethal Warning for Reluctant Buyers

The End of the Manufactured Exit

It is the oldest maneuver in the mergers and acquisitions playbook: a buyer gets cold feet, scours the merger agreement for a busted closing condition, and attempts to walk away. But the Delaware Court of Chancery just delivered a $2.35 billion reminder that you cannot point to a locked door if you are the one who jammed the keyhole.

In a massive victory for deal certainty, the Chancery Court has ordered data analytics giant Verisk to proceed with its $2.35 billion acquisition of AccuLynx. Rejecting Verisk’s attempt to terminate the transaction, the court found the termination invalid on a fundamental equitable ground: Verisk’s own willful conduct caused the failure of the very closing condition it relied upon to justify its exit.

For corporate lawyers and M&A litigators, the ruling is a stark reinforcement of the "prevention doctrine." It signals that the Delaware Chancery will meticulously unpack the factual record between signing and closing to determine exactly why a condition failed. If the buyer’s fingerprints are on the sabotage, the court will not hesitate to drop the ultimate hammer: specific performance.

The Prevention Doctrine in Delaware M&A

To understand why the Verisk ruling matters, one must understand how aggressively Delaware protects the sanctity of the definitive agreement. Under traditional contract principles, a party is excused from performing if a condition precedent to its obligation fails to occur. But Delaware law strictly applies the prevention doctrine, which states that a party cannot rely on the failure of a condition to excuse its performance if its own conduct materially contributed to that failure.

"The prevention doctrine provides that a party may not escape contractual liability by reliance upon the failure of a condition precedent where the party wrongfully prevented performance of that condition." Williams Cos. v. Energy Transfer Equity, L.P., 159 A.3d 264, 273 (Del. 2017).

The Verisk decision takes this principle and pairs it with the formidable remedy of specific performance. While the specific nature of Verisk’s "willful conduct" depends on the sealed evidentiary record, the legal conclusion is clear. When a buyer actively frustrates a closing condition—whether by dragging its feet on regulatory filings, alienating key stakeholders, or failing to use the requisite "reasonable best efforts" to satisfy closing hurdles—it forfeits the right to invoke that condition as a termination right.

This follows a rich lineage of Chancery decisions forcing reluctant buyers to the altar. From the legendary IBP, Inc. v. Tyson Foods, Inc., 789 A.2d 14 (Del. Ch. 2001) to more recent pandemic-era litigation like Snow Phipps Grp., LLC v. KCAKE Acquisition, Inc., 2021 WL 1714202 (Del. Ch. Apr. 30, 2021), Delaware judges have consistently shown they are immune to buyer's remorse. The Verisk order proves that this judicial posture remains as unyielding as ever in 2026.

Willful Conduct vs. Ordinary Breach

The Chancery Court’s specific finding of "willful conduct" is the linchpin of this decision, and it carries profound implications for how practitioners draft and litigate termination provisions.

In modern M&A agreements, the distinction between an ordinary breach and a "willful" or "intentional" breach is the difference between a capped reverse break fee and unbounded liability. "Willful conduct" generally requires an intentional act (or failure to act) taken with the knowledge that the action would result in a breach of the agreement or the failure of a condition. By finding that Verisk acted willfully to cause the condition's failure, the Chancery Court effectively stripped the buyer of any contractual safe harbors that might have limited its exposure.

This is a critical warning for deal counsel advising a buyer who wants out. It is never enough to simply observe that a target has failed to meet a milestone or that a regulatory approval has stalled. Counsel must ruthlessly interrogate their own client's pre-closing conduct. Did the buyer take every commercially reasonable step required by the efforts clause? Did executives send internal emails expressing a desire to kill the deal? If discovery reveals that the buyer manufactured the failure, a Delaware judge will force them to close the transaction anyway.

What This Means for Deal Practice

The Verisk order changes the calculus for both target and buyer counsel in three immediate ways:

1. Targets Have the Upper Hand in Discovery: When a buyer attempts to terminate over a failed condition, target counsel should immediately push for expedited discovery focusing on the buyer’s internal communications. The Verisk ruling validates the strategy of hunting for evidence of "willful conduct" to trigger the prevention doctrine and secure specific performance.

2. Efforts Clauses Have Sharp Teeth: Buyers often view "reasonable best efforts" or "commercially reasonable efforts" covenants as soft obligations. This ruling proves they are strict behavioral mandates. If a buyer fails to exert the required effort to satisfy a closing condition, that failure can be classified as willful conduct, nullifying the termination right.

3. Specific Performance Remains the Default: Buyers cannot assume they can simply pay damages or a break fee to walk away from a broken deal. Delaware courts are uniquely comfortable managing complex commercial realities and will force a $2.35 billion merger to close if equity demands it.

Ultimately, the Chancery Court's mandate in the Verisk-AccuLynx dispute is a testament to Delaware's identity as a "deal certain" jurisdiction. If you sign a multi-billion-dollar merger agreement, you are expected to close it. And if you decide to jam the lock to avoid the altar, Delaware will simply kick the door down.