Sandbagging: A Primer (2023)

What Is Sandbagging?

In the 19th century, “ruffians roamed the streets” and robbed “unsuspecting victims” using a tactic knowing as “sandbagging”: They wielded “ostensibly harmless socks” that were in fact “filled with sand and used as weapons.” [1]

Today, sandbagging has a different — and, thankfully, less violent — meaning. It describes a buyer that asserts a claim for breach even though it knew, or had reason to know, before the deal closed that a representation was untrue. In other words, the buyer had knowledge of the breach, or the relevant facts that led to the breach, but went through with the deal anyway, only to bring a claim for breach after closing.

This article explores how transactional practitioners address sandbagging in acquisition agreements, and the default rules that courts may apply when the deal parties are silent on the issue.

Contractual Approaches to Sandbagging in Deal Documents

The practice of sandbagging is so common that dealmakers have developed a standard “playbook” for addressing it in acquisition agreements.[2] Deal parties can adopt one of three contractual approaches: the buyer-friendly “pro-sandbagging” clause; the seller-friendly “anti-sandbagging” clause; or silence, in which event the parties defer to the default rule of the state whose law governs the agreement.

  • Pro-Sandbagging Clauses: A pro-sandbagging clause permits a buyer to seek recovery for breach of a representation or warranty even if the buyer knew, or had reason to know, that the representation or warranty was false prior to closing. For example, an agreement might provide that the right to a remedy “will not be affected by any Knowledge acquired (or capable of being acquired) at any time, whether before or after the execution and delivery of this Agreement or the Closing Date, with respect to the accuracy or inaccuracy of such representation [or] warranty.”[3] Deal parties also may specifically provide for pro-sandbagging-type language that applies to matters for which a special indemnity was negotiated, particularly when such risks are excluded under a representation and warranty insurance policy.

From the buyer’s perspective, a pro-sandbagging clause helps ensure it will receive the benefit of its bargain. The buyer believed its target had a certain value based on representations and warranties made by the seller. If the representations are false, buyers say, they overpaid and should be compensated. Buyers also argue that pro-sandbagging clauses provide the parties with greater certainty. For example, they remove certain hurdles to recovery, such as a prolonged and costly dispute during the indemnification process about the buyer’s pre-closing knowledge.

  • Anti-Sandbagging Clauses: An anti-sandbagging clause, on the other hand, would prohibit a buyer from seeking recovery where it knew prior to closing (or, depending on its scope, had reason to know) that a representation was false. For example, the agreement may provide that seller shall not be liable “for any Losses resulting from or relating to any inaccuracy in or breach of any representation or warranty in this Agreement if the party seeking indemnification for such Losses had Knowledge of such breach before Closing.”[4] The parties may limit its scope to knowledge obtained by a specific set of individuals, or to knowledge acquired before a specific time.

Anti-sandbagging clauses are uncommon these days. Nevertheless, sellers argue that, in certain contexts, these clauses may promote cooperation between the deal parties. The lingering threat that a buyer will sandbag the seller can cause tension and distraction if, for example, a co-founder or management seller will remain with the target company following acquisition. Sellers also may argue that they should have the right to cure any issues of which the buyer becomes aware before closing.

  • Silence: The parties also can remain silent about sandbagging. Despite the potential for uncertainty, this approach appears to be increasingly common. For example, a study of recent (2020 and 1Q2021) private-target-public-buyer deals found that 68% of agreements were silent as to sandbagging; in contrast, 41% of agreements were silent on this issue in 2006.[5] (Of deals that addressed sandbagging, the vast majority — more than 90% — permitted it.)

In the event of silence, the buyer’s ability to recover for breach of representations and warranties will depend on the default rule adopted by the jurisdiction whose law governs the transaction.

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What Does Silence Mean?

Where an acquisition agreement is silent as to sandbagging, a court will apply the default rule in the jurisdiction that provides the law governing the agreement. While this varies from state to state, we address here the law of two states (New York and Delaware) that frequently govern acquisition agreements.

New York

Where a contract is otherwise silent on the issue, New York permits sandbagging — but with important limitations. Under New York law, a buyer may enforce an express representation or warranty “even if it had reason to know that the warranted facts were untrue.”[6] But courts have also imposed a condition: The buyer “must show that it believed that it was purchasing the seller’s promise regarding the truth of the warranted facts.”[7] Thus, a buyer cannot recover if the seller discloses the inaccuracy to the buyer directly prior to closing, unless the buyer expressly preserves its right to bring a claim for breach through a pro-sandbagging provision. If, on the other hand, the seller is not the source of the buyer’s knowledge (e.g., because the fact is “common knowledge” or the buyer learns of the falsity of the facts from a third party), the buyer may recover.[8] At bottom, the “critical questions” are “what the buyer knew and, most importantly, whether he got that knowledge from the seller.”[9]


While Delaware is generally considered to be pro-sandbagging, its highest court has yet to state definitively whether its default contracting rules permit sandbagging where a transaction agreement is otherwise silent. In fact, the Delaware Supreme Court expressly declined to address this “interesting question” in a 2018 decision,[10] even though then-Chief Justice Strine observed (concurring in part and dissenting in part) that “[v]enerable Delaware law casts doubt” on a party’s “ability” to “turn around and sue because what he knew to be false remained so.”[11]

Earlier this year, however, the Delaware Chancery Court weighed in: Delaware, then-Vice Chancellor Slights concluded, “is, or should be, a pro-sandbagging jurisdiction.”[12] In Arwood v. AW Site Services, LLC, a buyer claimed breach of representations and warranties relating to, among other things, seller’s financial condition and compliance with certain legal requirements. Because the buyer had nearly full access to the seller’s business and financial records during due diligence, one issue at trial was whether the buyer knew or should have known pre-closing that the representations were false, and whether it mattered. Even ignoring the fact that the acquisition agreement appeared to allow sandbagging, the court held that the buyer could assert its claims.

First, the court stated that Delaware’s default rules permitted sandbagging (i.e., in the absence of a contractual agreement to the contrary, a buyer can recover on a breach of warranty claim even if the buyer knew, at the time of signing, the representations and warranties were not true).[13] The court said that a pro-sandbagging rule “supports the notion that representations and warranties serve an important risk allocation function,” and that where the agreement is silent, the “buyer may rest on its reasonable belief that it has acquired as part of the transaction the seller’s implicit promise to be truthful in its representations.”[14] While there is “something unsettling about allowing a buyer to lay in wait despite awareness of a breach,” the court said, “the risk of such litigation, like any other risk, can be managed expressly in the bargain the parties strike,” such as through the use of an anti-sandbagging provision.[15] Thus, the court held that the buyer in Arwood could recover regardless of whether it knew the representations and warranties were false prior to closing.

Second, and in the alternative, the court held that sandbagging rules were not even implicated because the evidence in the case did not establish that the buyer actually knew that the representations and warranties were false prior to closing.[16] In other words, the court concluded that even assuming Delaware prohibited sandbagging as the default rule, it would not matter unless the buyer had actual — and not constructive — knowledge of the truth of the representations and warranties; even demonstrating that the buyer was recklessly indifferent to the truth would be insufficient to bar recovery.

Arwood provides helpful guidance regarding the way Delaware courts may interpret silence in an acquisition agreement. Nevertheless, the law will remain uncertain until the Delaware Supreme Court speaks definitively on the question. And in the meantime, other courts could disagree or distinguish this authority. Thus, parties would be well-advised to consider including in their acquisition agreements a clause that expressly addresses the issue.

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Sandbagging and Representation and Warranty Insurance

It is increasingly common for the parties to an acquisition to obtain representation and warranty insurance. These policies typically have their own form of anti-sandbagging clause: an exclusion from coverage if the insured had knowledge of the applicable breach, as commonly supported by a “no claims” declaration whereby buyer declares that, as of the time the policy is bound and at closing, it does not have such knowledge of a breach. But such exclusions typically are drafted narrowly, excluding coverage only when a buyer had actual knowledge of the breach — not just knowledge of the facts underlying or causing the breach, and not covering any form of constructive knowledge or knowledge that would have been obtained upon due inquiry. And they are likely to exclude coverage only if a narrowly defined group of named deal team members had the requisite knowledge.

In addition, an insurer’s rights and obligations under the policy are (with some exceptions) typically derivative of those under the acquisition agreement. Thus, an insurer defending a claim could potentially invoke whatever sandbagging arguments would have been available to the seller under the acquisition agreement. Notably, however, pro-sandbagging clauses appear to be significantly more common in deals covered by representation and warranty insurance.[17] One study found a pro-sandbagging clause in 59% of private-target deals for which it identified a representation and warranty insurance policy, compared to only 33% of deals in which it did not identify a representation and warranty insurance policy.[18]

Key Takeaways

  • Sandbagging continues to be frequently negotiated between sellers and buyers. However, in the wake of the growing prevalence of no-indemnity deals, the issue of sandbagging has increasingly migrated to the arena of representation and warranty insurance, where a narrowly defined “anti-sandbagging” exclusion applies in practice.
  • In the event that the acquisition agreement is silent on sandbagging, applicable state law will dictate whether buyer’s knowledge could be held against it in seeking recovery for breaches of representations. While New York case law contemplates certain limitations on buyers’ ability to “sandbag,” Delaware has traditionally been viewed as a more pro-sandbagging jurisdiction. The recent Arwood decision appears to reaffirm such position, although the Delaware Supreme Court has yet to state definitively whether its default contracting rules permit sandbagging where a transaction agreement is otherwise silent.
  • Practitioners will be well-advised to consider the default sandbagging rules of the jurisdiction whose law governs an acquisition agreement. Buyers should consider adding express pro-sandbagging language, particularly in acquisition agreements providing for a general seller indemnity for breaches of representations (or in connection with specially negotiated indemnities for risks identified in due diligence). Buyers should also carefully review the scope of sandbagging-like exclusions in the representation and warranty insurance policy to ensure bargained-for coverage and/or revert to sellers for contractual protections of known and excluded items. Sellers should pay particular attention to the exact formulation of the representations and warranties, and use appropriate qualifications, limitations or disclosures in order to ensure the representations are accurate.

[1] Arwood v. AW Site Servs., LLC, Case No. 2019-0904-JRS, 2022 WL 705841, at *28 (Del. Ch. March 10, 2022) (internal quotation marks omitted).

[2] Id. at *29.

[3] SRS Acquiom, 2022 M&A Deal Terms Study (“SRS Acquiom Deal Terms Study”), at 98, available at

[4] Id.

[5] American Bar Association Business Law Section, Private Target Mergers & Acquisitions Deal Points Study (Dec. 30, 2021), at 80.

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[6] Merrill Lynch & Co. v. Allegheny Energy, Inc., 500 F.3d 171, 186 (2d Cir. 2007).

[7] Id.

[8] Rogath v. Siebenmann,129 F.3d 261, 265 (2d Cir. 1997).

[9] Id.

[10] Eagle Force Holdings, LLC v. Campbell, 187 A.3d 1209, 1236 n.185 (Del. 2018).

[11] Id. at 1247.

[12] Arwood, 2022 WL 705841, at *3.

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[13] Id. at *29.

[14] Id. at *30 – 31 (internal quotation marks omitted).

[15] Id.

[16] Id. at *31 – *32.

[17] Notably, many transactions covered by representation and warranty insurance do not include an underlying contractual indemnification by the sellers (i.e., “no-indemnity” or “no survival” deals). Because, in the absence of fraud, seller assumes less risk in such deals, it has less incentive to object to a pro-sandbagging provision that gives the buyer the broadest remedies possible. Another possibility is that parties in deals covered by representation and warranty insurance are more likely to negotiate “special indemnities” to cover buyer for specific known risk items that are excluded under the insurance policy. In such instances, pro-sandbagging language is feasible to protect the bargained-for indemnity from any claims regarding buyer’s knowledge (which knowledge is the very basis for negotiating such indemnity to begin with).

[18] SRS Acquiom Deal Terms Study at 57.

Related Practices

  • Mergers and Acquisitions
  • Public Companies
  • Securities and Shareholder Litigation
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What states are anti sandbagging? ›

Kansas, Minnesota and Texas are among the states that follow the Traditional Rule. The Traditional Rule is an “anti‑sandbagging” rule and, therefore, is seller‑favorable.

What is the anti sandbagging clause in M&A? ›

“Anti Sandbagging” Provisions

An anti sandbagging provision prohibits the buyer from sandbagging or seeking indemnification post closing against the seller for a breach of a rep or warranty that the buyer knew about at the closing.

Is New York pro sandbagging? ›

New York (along with Delaware) is sometimes referred to as a pro- sandbagging jurisdiction because “a majority of buyers will have some right to sandbag.” Iovine III, supra note 7, at 2.

What does sandbagging mean in law? ›

Sandbagging, in the field of mergers and acquisitions law, refers to the act of claiming a breach of a contractual representation or warranty despite having known at the time of the contract that it was untrue.

Can you get banned for sandbagging? ›

Sure, sandbagging is cheating. Rating manipulation and it will most likely get you banned.

How effective is sandbagging? ›

When placed correctly, sandbags can reduce the impact of flooding on your home or business. Sandbags will not stop the water completely but can reduce the amount of water entering your property.

What is an anti-sandbagging representation? ›

An anti-sandbagging clause prohibits a buyer from suing a seller after closing for a breach of a seller representation and warranty that the buyer knew about prior to closing.

What is anti-sandbagging knowledge? ›

A typical anti-sandbagging clause would read as follows: “The Seller shall not be liable for any losses arising from breach of any representation or warranty of the Seller if the Buyer had knowledge of such inaccuracy or breach prior to Closing.”

What is gun jumping in M&A? ›

Substantive gun jumping occurs when merging parties are competitors and co-ordinate their competitive conduct prior to the actual closing of the transaction. It refers to impermissible joint conduct, such as the sharing of competitive-sensitive information between the parties to a merger transaction.

Is sandbagging unethical? ›

In most cases, sandbagging is viewed as a dishonest and unethical practice that can significantly negatively impact company culture, employee morale, and overall business success.

What are examples of sandbagging? ›

Other Common Contexts of Sandbagging

For example, a pool shark may deliberately shoot a game poorly when they encounter a new player who is unaware of their actual skills. This might entice the new player to accept bigger betting stakes, which turns out to be a bad move when the pool shark reveals their actual prowess.

What is an example of a sandbagging clause? ›

For example, the agreement may provide that seller shall not be liable “for any Losses resulting from or relating to any inaccuracy in or breach of any representation or warranty in this Agreement if the party seeking indemnification for such Losses had Knowledge of such breach before Closing.” The parties may limit ...

What are the benefits of sandbagging? ›

Some athletes like sandbag training for the benefits it provides. For example, sandbag exercise has been linked to increases in muscle strength and grip strength in particular. It has also been connected with greater levels of stability and improved sports performance.

What is another word for sandbagging? ›

On this page you'll find 447 synonyms, antonyms, and words related to sandbagging, such as: constrain, curb, discourage, forbid, hinder, and impede.

What is sandbagging used for? ›

Sandbagging is a flood prevention technique that has been around for centuries. You can build a barrier with sand bags to help divert and stop water from getting inside vulnerable doors and around foundations. Sandbagging can be done with traditional sand bags — the most recognizable of which is burlap.

What is sandbagging advantages and disadvantages? ›

The advantages are that the bags and sand are inexpensive. When empty, the bags are compact and lightweight for easy storage and transportation. They can be brought to a site empty and filled with local sand or soil. Disadvantages are that filling bags is labor-intensive.

What does urban slang sandbagging mean? ›

: to treat unfairly or harshly. : to coerce by crude means.

What is the opposite of sandbagger? ›

A reverse sandbagger, as you might surmise, is the opposite of a sandbagger. They're a golfer that has an artificially low handicap -- sometimes called a vanity handicap -- one that doesn't represent their current skill level.

What is sandbagging in psychology? ›

Psychology Department Publications

Sandbagging is a self-presentational strategy involving the false prediction or feigned demonstration of inability. Three studies explored the individual differences and situational variables influencing sandbagging behavior.

Do sandbags stop bullets? ›

Sandbags for Cover

Although sand feels soft when you touch it, filled sandbags are powerful bullet-stoppers that provide cover from enemy fire. A single bag of sand is enough to stop most handgun rounds in their tracks. It will even stop some rifle rounds from reaching the other side.

What is sandbagging vs anti sandbagging? ›

An “anti-sandbagging” clause, as the name suggests, prohibits the buyer from “sandbagging” the seller, by limiting the buyer's ability to seek recourse with respect to matters which the buyer knew about at closing.

Is sandbagger derogatory? ›

'Sandbagger' Went Through Poker to Get to Golf

But the word didn't go directly from its gangland origins into golf; there was an intermediary step in its adoption by the sports world, and golf, to mean someone who misrepresents his ability to gain an advantage.

Why is it called sandbagging in sales? ›

The term “sandbagging” comes from the late 1800s, and refers to somebody who sneaks up on someone else and hits them with a sandbag. It was a very underhanded move back in those days.

What is a hostile M&A deal? ›

A hostile takeover is when a company or activist shareholder tries to gain control of a target company by sidestepping the company's management and board of directors, and going directly to its shareholders.

What is an example of gun jumping? ›

An example of gun jumping would be collusion between merging parties on product prices prior to the closing of the merger.

Why does M&A destroy value? ›

The firms most likely to destroy value are those that fail to assign detailed responsibilities and strict accountability to the teams in charge of researching, planning, negotiating and implementing the acquisition.

What is the opposite of sandbagging in sales? ›

The opposite of sandbagging is “blue-skying,” where sales professionals allow their positive attitude to color their evaluation of prospects.

Why is sandbagging bad? ›

Sandbagging Undermines Your Performance

Sandbagging is bad because it blocks the business from maximizing its potential.

What is sandbagging in a relationship? ›

An expression that is frequently used is “sandbagging.” Sandbagging your angry feelings means to avoid the person for whom anger is directed, sidestepping the issue, keeping the anger inside, instead of being direct with a person.

Should you sandbag in sales? ›

Sandbagging may help you impress management by exceeding your sales quotas and completing risky deals. If you impress management consistently, you may receive new responsibilities, a bonus or even a promotion.

What is the history of the phrase sandbagging? ›

“Sandbagging” term originates from the late 1880s and relates to somebody who sneaks up on another person from behind and beats them with a sandbag. It was a dishonest move back in the days. Today, the term also implies some kind of trickery but not that dangerous.

Can I put sandbags around my house? ›

Sandbags placed in appropriate locations in and around your home can help minimise the impact of flooding. While they will not stop the water completely, sandbags can help reduce the amount of water entering your home and damaging your property if they are used correctly.

What is sandbagging and anti sandbagging? ›

An “anti-sandbagging” clause, as the name suggests, prohibits the buyer from “sandbagging” the seller, by limiting the buyer's ability to seek recourse with respect to matters which the buyer knew about at closing.

Are sandbags still used today? ›

The military uses sandbags for field fortifications and as a temporary measure to protect civilian structures. Because burlap and sand are inexpensive, large protective barriers can be erected cheaply.

Do sandbags really stop water? ›

Sandbags are a good way to reduce flood water damage, and when they are properly filled and placed, the sandbags can act as a barrier to moving water around instead of through buildings. Sandbags will leak, and it's best to have a pump on the dry side to remove water that gets in.

Should you put plastic under sandbags? ›

Lay a plastic sheet in between the building and the bags to control the flow and prevent water from seeping into sliding glass doors. Limit placement to three layers, unless a building is used as a backing or sandbags are placed in a pyramid.

What can I use instead of sandbags? ›

Alternatives to Sandbags for Flooding
  • Flexible Flood Barriers and Cofferdams. Like flood protection sandbags, flexible flood barriers and cofferdams divert the flow of water away from certain areas. ...
  • Inflatable or Water-Filled Dams. ...
  • Inflatable, Gel or Water-Filled Sandbags. ...
  • Floodproofing. ...
  • Levees and Floodwalls.
Oct 27, 2022

Do sandbags mold? ›

Uncontaminated sandbags may be stored on your property for reuse; however, mold can become a problem if they are wet. Ensure sandbags are stored dry.

Do you put sandbags inside or outside? ›

Place the sandbags OUTSIDE and against the doors where water enters your home. Garage: If water comes into your garage, sandbags should be directly against the access door into your home for support (Figure 1). Garages can withstand low flooding with less damage than the interior of your home.

Can I use dirt instead of sand in sandbags? ›

About Sandbagging

Only use sand in the bags: Dirt and potting soil are not a suitable replacement for filling the bags. When wet, the sand hardens but it's still pliable enough to mold into the shape needed to build a water-blocking structure. Try to use coarse sand: If possible, avoid using fine sand.

What is better than sandbags for flooding? ›

Water inflated cofferdams are probably the best alternative to sandbags when it comes to flood protection. They are sturdy, quick to deploy and they offer protection against very high volumes of water. They are also convenient, as the very resource needed to inflate them – water – is usually readily available.

How long will sandbags last? ›

A sand bag can last indefinitely. The bags are durable, and sand never breaks down or evaporates.

What is the best sand for sand bags? ›

Which sand should I use to fill up my sandbag? Dry play sand or washed sand. Don't use River sand, Brickies sand, Pavers sand, Builders sand, cement, etc. This type of substance will ground down so finely that it will leak out through the tiniest of stich holes creating 'puffs' of dust.


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