Ahern Rentals v. EquipmentShare: Trade Secrets

Q: Can you sue for trade secret misappropriation without direct proof of theft?

Often yes, at the pleading stage. In Ahern Rentals v. EquipmentShare, the Eighth Circuit held that allegations made on information and belief are not automatically insufficient when the proof lies in the defendant's sole possession, or when the belief rests on enough factual material to make misappropriation plausible. A plaintiff still must prove the claim later with evidence.

The Eighth Circuit held that trade secret misappropriation can be pled on information and belief when the proof sits in the defendant's sole control.

Trade secret plaintiffs face a chicken-and-egg problem at the courthouse door. To survive a motion to dismiss, a complaint must plausibly allege that the defendant took and used the plaintiff’s secrets. But the evidence of that taking, the copied files, the internal use, the communications, usually sits inside the defendant’s own systems, invisible until discovery. If a court demands proof of misappropriation before allowing discovery, meritorious cases die before they can gather the very evidence the court insists on seeing. Ahern Rentals, Inc. v. EquipmentShare.com, Inc., 59 F.4th 948 (8th Cir. 2023), decided February 7, 2023, addressed that dilemma and gave plaintiffs a workable answer.

The Eighth Circuit reversed the dismissal of Ahern’s trade secret claims and adopted the prevailing rule among the federal courts of appeals: allegations pled “on information and belief” are not categorically insufficient. They can carry a complaint past the pleading stage when the supporting proof lies in the defendant’s sole possession, or when the stated belief rests on enough concrete factual material to make the inference of wrongdoing plausible. For nearly every misappropriation complaint, which almost always alleges secret use the plaintiff cannot yet observe, that holding is a threshold lifeline.

At a glance

Case: Ahern Rentals, Inc. v. EquipmentShare.com, Inc., 59 F.4th 948 (8th Cir. 2023), No. 22-1399.
Decided: February 7, 2023, United States Court of Appeals for the Eighth Circuit, reversing the district court’s dismissal of EZ Equipment Zone and vacating its dismissal of EquipmentShare.
Holding: Trade secret misappropriation may be pled on information and belief where the proof is within the defendant’s sole possession or the belief rests on sufficient factual material to make culpability plausible; a total refusal to credit such allegations is error.
Significance: Aligns the Eighth Circuit with the majority approach to information-and-belief pleading and clarifies how much a plaintiff must allege about secret conduct it cannot yet see.

The pleading frame: plausibility and hidden proof

Modern federal pleading is governed by Bell Atlantic Corp. v. Twombly, 550 U.S. 544 (2007), and Ashcroft v. Iqbal, 556 U.S. 662 (2009), which require a complaint to state a claim that is plausible on its face rather than merely conceivable. Those decisions ended the era of bare notice pleading, but they did not require a plaintiff to prove its case in the complaint. The line between a plausible claim and an implausible one is where trade secret cases live or die.

Pleading “on information and belief” is a longstanding device for alleging facts the plaintiff reasonably believes true but cannot yet confirm with direct evidence. After Twombly and Iqbal, courts divided over whether such allegations could ever satisfy plausibility. Some district courts treated information-and-belief pleading as inherently conclusory and dismissed complaints that relied on it. The majority of circuits, however, recognized that plausibility does not demand omniscience: a plaintiff may plead on information and belief when the facts are peculiarly within the defendant’s knowledge or control, so long as the belief is grounded in a plausible factual basis rather than speculation. That majority rule is what the Eighth Circuit had not yet squarely adopted before Ahern.

The facts and posture: a rental rivalry and a dismissed complaint

Ahern Rentals is a large construction-equipment rental company. It alleged that two competitors, EquipmentShare.com, Inc. and EZ Equipment Zone, LLC, misappropriated its confidential business information to gain an unfair advantage in the equipment-rental market. The gravamen of the complaint was that Ahern’s proprietary information had made its way to the competing defendants and was being used against it.

The litigation was one of several parallel suits Ahern had brought against EquipmentShare, a fact that shaped the district court’s rulings. The district court first dismissed EZ Equipment Zone, concluding that Ahern had failed to state a plausible misappropriation claim against it, in significant part because the operative allegations were pled on information and belief. The court then dismissed the remainder of the case against EquipmentShare on grounds tied to the parallel litigation, treating the surviving claims as duplicative of Ahern’s other pending suits against the same rival. Ahern appealed both dismissals.

The posture matters. Because the case was resolved on the pleadings, the Eighth Circuit took Ahern’s well-pleaded factual allegations as true and asked only whether they stated a plausible claim, not whether Ahern could ultimately prove misappropriation.

The court’s reasoning: information and belief is not a per se defect

The Eighth Circuit reversed. Its central holding rejected the notion that allegations pled on information and belief are automatically inadequate. The court adopted the standard that prevails among the circuits: such allegations are not categorically insufficient to state a claim where (1) the proof supporting the allegation is within the sole possession and control of the defendant, or (2) the belief is based on sufficient factual material that makes the inference of culpability plausible.

Applied to Ahern’s complaint, that standard changed the result. Evidence of whether and how the competitors actually took and used Ahern’s confidential information was precisely the kind of proof lodged in the defendants’ own possession and control. Requiring Ahern to allege that hidden conduct with the certainty of direct evidence would have made the claim impossible to plead before discovery, an outcome the plausibility standard does not compel. The court concluded that Ahern’s allegations, taken together and drawing reasonable inferences in its favor, plausibly stated a misappropriation claim against EZ Equipment Zone. The district court had erred in summarily rejecting those allegations simply because they were framed on information and belief.

The court then turned to EquipmentShare. Because its dismissal of that defendant rested on reasoning connected to the now-reversed dismissal of the co-defendant, the Eighth Circuit vacated the EquipmentShare ruling and returned it to the district court, reasoning that the analysis that produced it might come out differently once the corrected pleading standard was applied. The claims against EquipmentShare were revived for reconsideration rather than resolved on the merits.

What the decision changed

Ahern did not invent a new pleading rule so much as commit the Eighth Circuit to the sensible majority position and articulate it clearly for trade secret cases. Its practical effect is to prevent early dismissal from becoming a categorical bar whenever a plaintiff cannot yet see inside the defendant’s operations. The decision confirms that a plaintiff need not plead the smoking gun to open discovery; it must plead a plausible, factually anchored belief that misappropriation occurred, especially where the proof is in the defendant’s exclusive control.

At the same time, the holding is not a license for speculation. The two-part standard has teeth. A complaint that offers only a bare conclusion of theft, unsupported by any factual material, still fails. The belief must be tethered to concrete facts, the plaintiff’s ownership of identifiable secrets, the defendant’s access, the circumstantial indications of use, that make the inference of culpability plausible. Ahern is thus a middle path: it rejects both the demand for pre-discovery proof and the tolerance of naked allegation.

Open questions

The decision leaves the calibration to district courts, and that is where the friction will continue. How much factual material is “sufficient” to anchor a belief is inherently case-specific, and reasonable judges will disagree about where circumstantial access shades into speculation. The opinion also does not resolve how the information-and-belief standard interacts with the separate and demanding requirement that a plaintiff identify its trade secrets with particularity, an obligation that can itself be difficult to satisfy before discovery. A plaintiff might plead misappropriation plausibly on information and belief yet still stumble on secret identification, and the two doctrines are not fully harmonized.

Nor does Ahern address how the standard applies at later stages. Surviving a motion to dismiss on information and belief buys discovery, not victory. Whether the developed record supports the pleaded belief is a question for summary judgment and trial, and a plaintiff who cannot convert its plausible allegations into evidence will lose. As of July 2026, the decision stands as the Eighth Circuit’s settled statement on the pleading question.

Implications for inventors and businesses

Plead the belief, and anchor it in facts. Identify the specific secrets, the defendant’s access to them, and the circumstantial signs of use. A belief grounded in those concrete facts survives; a bare accusation does not.
Say why the proof is in the defendant’s hands. Where the evidence of taking and use lies inside the defendant’s systems, make that explicit. The first prong of the standard exists precisely for information within the defendant’s sole possession and control.
Do not neglect trade secret identification. Information-and-belief pleading addresses the misappropriation element, not the separate requirement to identify what was taken. Describe the secrets with as much particularity as the pre-discovery record allows.
Remember that pleading is only the gate. Reviving a claim on information and belief opens discovery; it does not prove misappropriation. Build the case to convert plausible allegations into evidence before summary judgment.

Frequently asked questions

Can you sue for trade secret misappropriation without direct proof of theft? Often yes, at the pleading stage. In Ahern Rentals v. EquipmentShare, the Eighth Circuit held that allegations made on information and belief are not automatically insufficient when the proof lies in the defendant’s sole possession, or when the belief rests on enough factual material to make misappropriation plausible. A plaintiff still must prove the claim later with evidence.

What does pleading on information and belief mean? It means alleging a fact the plaintiff reasonably believes to be true but cannot yet confirm with direct evidence, often because the evidence is controlled by the defendant. Courts accept such allegations when they rest on a plausible factual basis rather than pure speculation, consistent with the plausibility standard of Twombly and Iqbal.

Why did the Eighth Circuit revive the claims against EquipmentShare? The district court had dismissed the EquipmentShare claims on grounds tied to its dismissal of the related defendant. Because the Eighth Circuit reversed the dismissal of the misappropriation claim against that co-defendant, it vacated the EquipmentShare ruling so the district court could reconsider the claims in light of the corrected pleading standard.