The Buyer Wrote Down What They Bought From You. And they said why.
Every entry in this series so far has been written from the founder's chair. This one is written from the buyer's, because the assumptions in their model are the ones your price was built on — and years later they publish which ones were wrong.
If you are preparing to sell, you have probably spent months on the story: the growth, the margin structure, the loyalty of your buyers, the runway of the category. You could tell it in your sleep. What almost nobody does is the reverse exercise: work out what the acquirer's model has to assume for the number on the table to make sense.
Those assumptions are the deal. The price is just their arithmetic made visible.
And there is an unusual feature of this particular market: the buyer eventually publishes which assumptions were wrong, in a document anyone can read, with the reasons broken out line by line. Almost nobody reads it.
When a company acquires a brand, the price splits. Part of it attaches to things you can point at — plants, inventory, receivables. The rest becomes goodwill and indefinite-lived intangible assets: the accounting name for the portion of the price not attributable to any identifiable thing.
That portion is not amortized. It sits on the balance sheet at full value until the company tests it and concludes it is worth less than it is carried at. Then it is written down, and the write-down is a public statement about what the buyer thinks they actually got.
The carrying value of the Oscar Mayer brand before and after Kraft Heinz's interim impairment test of December 2018 — a $3.3 billion write-down, halving the brand, roughly three and a half years after the merger that brought it in.
It was not an isolated line. The same interim test found seven of twenty goodwill reporting units and six brands carried above their fair value. Total non-cash impairment was $15.4 billion — $7.1 billion of goodwill and $8.3 billion of indefinite-lived intangibles. Aggregate goodwill and indefinite-lived intangibles fell from $97.3 billion to $80.5 billion in a single quarter. Oscar Mayer was impaired again in 2020, another $626 million.
Here is the part worth the price of admission. Kraft Heinz did not simply record the charge. Its 10-K sets out the drivers brand by brand, and for Oscar Mayer they were: sustained increases in supply chain costs, expectations for lower pricing to maintain competitive positioning, and expectations for increased marketing investment.
Read that as a founder rather than as an analyst and it is a confession about the original model.
| What the filing says | What it says about the purchase price |
|---|---|
| Sustained increases in supply chain costs | The margin structure we underwrote was more fragile than we modeled |
| Lower pricing to maintain competitive positioning | The brand could not hold its premium. We assumed it could |
| Increased marketing investment | It needed more support than we intended to give it |
Impairment drivers for the Oscar Mayer brand, Kraft Heinz Form 10-K fiscal 2018, with the corresponding assumption in the acquisition model.
The middle row is the one that matters to anyone who is about to sell. The acquirer's model assumes your brand holds its price with less support than you are currently giving it. That is not a cynical reading; it is the arithmetic of most strategic acquisitions. The synergy case is largely a support-reduction case. If the brand needed everything you were spending, there would be no synergy to pay you for.
So the question a founder should be asking in diligence is not what the buyer will pay. It is: how much of what I currently spend do they believe they can stop spending, and are they right?
There is a structural reason the answer surfaces late, and it is not incompetence.
Goodwill is not amortized. It sits at full carrying value until an impairment test says otherwise, which means the cost of overpaying does not touch earnings on any fixed schedule. Research published in the Journal of Accounting Research in 2025, estimated across 860 all-cash takeover auctions between 2001 and 2022, found that this treatment measurably raises what strategic bidders are willing to pay — because the acquisition cost relating to goodwill will not affect earnings until an uncertain later date when an impairment occurs.
That finding cuts two ways and a seller should hold both. The deferral is part of why the offer on your table is as high as it is. It is also why nobody, including the buyer, has a strong incentive to test the assumption carefully before signing.
The same research puts a figure on the distortion: remove the impairment-only treatment and the share of private equity acquirers rises by roughly 6.9 percentage points. The accounting convention changes who buys companies.
Kraft Heinz, and what was said at the merger
2015–2026When 3G Capital and Berkshire Hathaway brought Kraft and Heinz together in 2015, investors raised the obvious concern: that a cost-cutting operator would starve the brands. The response was explicit. The company said it would not pursue indiscriminate cost-cutting, that margins would come from synergies between the two businesses, and that savings would be reinvested in brand development.
By February 2019 the company had recorded the $15.4 billion charge, cut its dividend by 36 percent, and disclosed an SEC subpoena relating to procurement accounting. The shares fell 27 percent in a day. Securities litigation alleging that the reinvestment commitment was not honored reached discovery in 2026 and, as of publication, has not been resolved.
The commitment was made publicly, by named executives, to investors with far more leverage than any founder has. It was still a statement of intent rather than a constraint. Nothing in the structure would have failed if it were abandoned, and abandoning it improved the quarter.
This series has argued before that a plan tells you what a company hopes and a rule tells you what it will do when hope runs out. An acquirer's stated intention for your brand is a plan. If it matters to you, it belongs in the document.
Four limits, and the first is the one I had to check before writing anything.
Impairments are heavily driven by discount rates. The Federal Reserve's tightening cycle from 2022 lifted the cost of capital across nearly every industry and pushed borderline reporting units into impairment territory for reasons having nothing to do with deal quality. Anyone reading a write-down as proof of a bad acquisition is overreading. What survives that objection is narrower: Kroll's 2026 study found 2025 impairments concentrated in healthcare, consumer staples and industrials — in a year when rates were falling and aggregate impairment volumes were moderating. A rate story would have moderated with everything else.
This is one company, examined closely. Kraft Heinz is the most documented case available because the charge was enormous and the litigation made the record public. It is not a sample.
I expected the disclosure to be worse than it is. Before looking, I predicted no acquirer would publicly reconcile a write-down to its original thesis. That was wrong. The filing does it brand by brand, in plain language, with the drivers named. The information problem here is not availability. It is that nobody reads 10-K brand impairment disclosures while preparing to sell a company.
A write-down is not a verdict on the seller. Oscar Mayer's founder did not do anything wrong in 1883. The charge says the acquirer's model was optimistic, not that the asset was bad.
- The buyer is public and has bought in your category before — then the record exists and it is free. Where your acquirer is a first-time buyer or private, this instrument is unavailable and you are back to asking questions in the room.
- A meaningful part of your premium depends on marketing support — if your brand holds price because people know it rather than because of what is in the box, the support-reduction assumption is the whole deal and you should know their history of making it.
- You care what happens after — if you are optimizing purely for price and have no attachment to the outcome, this is interesting rather than useful. That is a legitimate position and worth being honest with yourself about.
- You have leverage — more than one bidder, or a business they need more than you need the exit. Reading the filings without leverage tells you what will happen without changing it.
Before the next diligence session, pull your acquirer's last two annual reports and read the brand impairment disclosures for anything they bought in your category.
Search the document for “impairment” and read the paragraphs that name a brand. You are looking for three things: which brands they have written down, how long after acquiring them, and the stated drivers. If the drivers are the three above — costs rose, pricing was lower than expected, the brand needed more investment — then their model reduces support and assumes price holds, and that is the model being applied to you. It takes about an hour, the document is free, and it is the only place a buyer is legally obliged to explain a mistake.
- What it costs
- An hour, and the discomfort of walking into a negotiation knowing something specific and unflattering about how your counterparty has treated assets like yours.
- How you'll know
- You can ask one question in the room that they have to think about before answering — what marketing support level their model assumes for your brand in year three. If the number is materially below yours, you have found the deal.
Sellers spend the diligence period being examined. Very few of them examine back, and the material to do it with is sitting on a public filing server, indexed, searchable and free.
The buyer will eventually publish what they thought they were purchasing and what they turned out to have. The only choice available is whether you read that document before the deal or after it.
Related from Sound Decisions: Purely Elizabeth Took Eight Years to Raise $3 Million · Can Your Mission Survive Acquisition? · The Rule That Never Moved
One conversation. What your buyer's model assumes about your brand.
Not deal advisory. Reading the acquirer's own record on brands like yours, and working out which of your spend their price assumes they can stop.
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