The simple version

When a company says it has a program to buy its own shares, it is telling you it is allowed to do so. It is not telling you it will.

Many programs name a dollar figure. That figure is a cap on how much the company may spend, with no floor underneath it and often no deadline attached.

The amount actually spent is a separate number, reported after the fact. The two can be very far apart, and in one well-documented case the gap was the whole thing.

The numbers

• The term is a share repurchase program. The authorizing language sets the conditions; a separate statement reports what was bought.
• Berkshire Hathaway's quarterly report for the period ended June 30, 2026 describes a program that permits repurchases any time the Chief Executive Officer, after consultation with the Chairman of the Board, believes the repurchase price is below intrinsic value, conservatively determined.
• The filing states the program does not specify a maximum number of shares to be repurchased, and that there is no expiration date to the program.
• It also states plainly that under the program the company is not obligated to repurchase any specific dollar amount or number of Class A or Class B shares.
• There is one hard condition, and it is a floor on cash rather than a ceiling on buying. The filing says repurchases will not be made if they would reduce consolidated cash, cash equivalents and US Treasury Bill holdings below 30 billion dollars.
• The actual spending is in the statement of changes in shareholders' equity. The treasury stock balance was 78,939 million dollars at December 31, 2024 and 78,939 million dollars at December 31, 2025.
• The same statement then reports acquisitions of common stock of 235 million dollars in the first quarter of 2026 and 4,527 million dollars in the second, taking the treasury stock balance to 83,701 million dollars at June 30, 2026.
• This article rests on one company's quarterly report. A second filer would show whether a capped, dated authorization behaves differently, and that comparison is not made here.

Permission, a cap, and a floor

Three different things get run together here and they are worth separating. The first is the set of conditions that have to hold before any shares are bought at all.

The second is the size limit. Most programs state a dollar cap, and a headline will report that cap as though it were a spending plan, which it is not.

The third is any condition that stops the buying. In the case above there is no size limit at all, and the one that bites runs the other way: a minimum amount of cash that must survive the purchase.

The actual math on a year of nothing

The balance where taken-in shares are recorded only moves when shares are bought or reissued. It was 78,939 million dollars at the end of 2024 and 78,939 million dollars at the end of 2025.

Across those twelve months the balance did not move, which is what no buying looks like on this line.

Then it moved twice. Up 235 million dollars, then up 4,527 million dollars three months later, which is roughly nineteen times the quarter before and takes the balance to 83,701 million.

What this means

If you want to know what a company spent buying its own shares, the announcement will not tell you. The statement of changes in equity and the cash flow statement will.

It also means an announcement is weak evidence about intent. A program can sit unused for a year and then absorb billions in a quarter, with the same words governing both.

What this is NOT

This article explains what a share repurchase program does and does not commit a company to, using Berkshire Hathaway's quarterly report for the period ended June 30, 2026 as the worked example because that filing states the program terms and the spending in the same document. It is not a recommendation to buy or sell any security, not a view on whether any buyback is a good use of money, and not a prediction of what any company will spend next. The arithmetic is ours: the 4,762 million dollar total for the first half of 2026, the roughly nineteen times comparison between the two quarters, and the observation that the treasury stock balance was unchanged across 2025, which is read from two balances in the same statement rather than stated by the company. The program terms quoted here are those stated in this one filing; earlier filings were not compared, so nothing here establishes whether the program was ever amended. The piece rests on a single filer's disclosures, which are unusual in having no size cap, so other programs will read differently and none were examined. This is not a political endorsement or criticism of anyone.

Sources

• Berkshire Hathaway Inc., Form 10-Q for the quarterly period ended June 30, 2026, filed August 10, 2026 (accession 0001193125-26-341032), common stock repurchase program discussion.
• Berkshire Hathaway Inc., same filing, consolidated statements of changes in shareholders' equity, for the treasury stock balances and the acquisitions of common stock lines.
• US Securities and Exchange Commission, EDGAR filing archive, read November 8, 2026.