Subway Stayed Private for 60 Years. Then Estate Math Did What Strategy Never Would.

In 1965, a 17-year-old named Fred DeLuca and family friend Peter Buck opened Pete's Super Submarines with a $1,000 investment from Buck, who took half the company in return.¹ The rest - the bread, the footlong, the sixty-year mythology - grew from that single founding transaction. That single decision, repeated and ossified over six decades, is the whole story of Subway. Not the bread, not the footlong, not Jared. The whole story is two men splitting one thing down the middle and never writing the page that said what happens when they're both gone.

The official story is that Subway was a temple of founder control - privately held for nearly sixty years, untouched by Wall Street, run on conviction instead of quarterly earnings. It stayed private because its founders believed in staying private. It stayed private because two living owners wanted it to, and the moment they were both dead, the structure that kept it private became the structure that forced it to sell. The doctrine didn't fail. It expired.

Here is the thesis a smart friend can repeat at dinner: Subway didn't go to private equity because its strategy collapsed or its families went to war. It went because a 50/50 split between two separate bloodlines, never welded shut by an ironclad succession plan, has exactly one stable endpoint once both founders die - liquidation into cash. The mystique ended not by strategy but by the cold arithmetic of estates.

The genius and the time bomb were the same decision

The 50/50 partnership, formalized in 1966 as Doctor's Associates - named for Buck's PhD and DeLuca's dream of becoming a medical doctor¹ - was a beautiful thing while both men were alive. Two owners, aligned, no public shareholders to appease, no quarterly theater. Control was absolute because it was concentrated. But concentration is only a strength while the people holding it are the people running it. The clever part and the fatal part were never two decisions. They were one. A clean half-and-half split is frictionless between partners and almost ungovernable between their heirs, because heirs inherit the stake without inheriting the alignment that made the stake work.

Watch the two halves separate. Fred DeLuca died in September 2015 at 67, and his 50% passed to his widow, Elisabeth DeLuca, who with her family was later estimated to be worth as much as $8 billion - a new entry on the world billionaires list, holding an asset she had not built.⁸ Peter Buck died in November 2021 at 90, and instead of leaving his half to a successor who would operate it, he bequeathed it to the Peter and Carmen Lucia Buck Foundation - a charity, valued at roughly $5 billion against the eventual sale price.³ Now look at who owned Subway: a widow and a foundation. Neither makes sandwiches. Neither runs franchises. Both held enormous illiquid paper value in a company they did not operate.

A foundation can't drink a sub

This is the mechanism, worked all the way down. A charitable foundation has obligations that an individual owner does not: it exists to fund giving, and a $5 billion position locked inside a private sandwich company funds nothing. It is a number on a page until it is converted. A foundation cannot eat dividends from a slow-growing franchisor and call that a mission. Under IRS rules governing private foundations, a 50% stake in an active business enterprise would constitute a massive excess business holding — triggering excise taxes of 10% annually unless divested, rising to 200% if left uncorrected — giving the foundation a legal, not merely financial, reason to exit.⁹ It needs the asset turned into deployable capital - which means a sale, or an IPO, and an IPO of a private chain shedding stores is a far harder sell than a clean exit to a buyer who wants the whole thing. Meanwhile the DeLuca side held value it had inherited rather than created, with no operating reason to keep the chips on the table. Two non-operating owners, both wanting eventually to monetize, both holding exactly half. The math has one answer.

And the business itself was quietly making the case. Subway peaked above 27,000 U.S. restaurants in 2015 - the same year DeLuca died - then closed a net seven thousand locations, finishing 2023 at 20,133, its thinnest U.S. footprint since 2005 and an eighth straight year of net closures.⁷ The remaining stores were healthier - average unit volumes hit a record $490,000⁷ - but a shrinking store count is not the profile of a company its owners want to ride for another generation. It's the profile of an asset to harvest. Corporate revenue of $971.9 million in 2023 threw off just $15.4 million in net income⁶ - a fortune of enterprise value sitting on a thread of distributable profit. The illiquidity was the problem, and the only fix was a buyer.

When bidding opened, the asking price was higher and the eventual deal carried an earn-out, so the headline $9.6 billion isn't even the full possible consideration.⁵ Roark closed in 2024, and the structure tells you exactly what kind of new owner Subway got: roughly $5.7 billion in debt loaded onto the books through securitization financing, and corporate net income that leapt to $689 million in the post-Roark filing — a figure the source notes is difficult to interpret fully, as FDD disclosures provide limited visibility into actual corporate spending.⁶¹⁰ That is the private-equity playbook stamped onto a chain that had spent sixty years avoiding precisely this. Leverage the cash flows, optimize the corporate take, run it for return. The founder doctrine of control-above-all became, in one transaction, an instrument of yield.

But wasn't this just a feud, or a failing business?

The tidy version of this story is a founder feud - the DeLucas and the Bucks at each other's throats over a crumbling empire, forced to sell because they couldn't agree. It's a satisfying narrative and the evidence doesn't support it. In January 2023 the Buck foundation went out of its way to say the two families 'remain close,' and that members of both sit on Subway's board.⁴ The sale reads as a jointly managed process, not an adversarial split. Which actually strengthens the argument rather than weakening it: this wasn't dysfunction. Two cooperative, rational owners, getting along fine, still arrived at the exit - because the structure pointed there regardless of how well everyone behaved. When even harmony leads to the sale, the cause isn't the people. It's the design.

The other objection is that Subway sold because it was dying - eight years of closures, a thinning footprint, declining relevance. There's truth in the decline, but the timing doesn't fit a fire sale. Unit economics were improving, not collapsing; $490,000 average volumes are a record, not a death rattle.⁷ And a genuinely failing chain doesn't fetch $9.6 billion. The business pressure made the sale easier to justify, but it was not the trigger. The trigger was that both halves had passed to owners who needed liquidity an unlisted franchisor cannot provide. A healthier Subway with the same ownership structure would still have faced the same dead end - just with a fatter price tag.

Subway spent fifty-nine years as a monument to staying private, and the monument was real - right up until it became a vault no one living had the key to operate. Two men split one company in half in 1965 and built something extraordinary on the trust between them. What they never built was the page that said what their heirs should do. So the heirs did the only thing the structure left them. The famous founder doctrine didn't lose a battle to private equity. It simply ran out of founders - and a half-and-half empire, handed to people who can't or won't run it, has exactly one place to go.