Castlelake has put $6.3 billion on the table for easyJet, and easyJet's board has said no three times. Now the Minneapolis-based investment firm is going around the board entirely, publishing its offer directly so shareholders can decide whether their directors are protecting them or blocking a good deal.

That move, going public with a bid the board won't discuss, is a classic pressure tactic in corporate takeovers. It turns a private negotiation into a public one, and it puts the board on the defensive.

What Castlelake is actually offering

The latest proposal values easyJet at £62.50 per share, or roughly £4.74 billion (about $6.3 billion). That's 57% above where easyJet's stock was trading on May 29, the day before Castlelake first disclosed its interest. Two earlier bids, at £56 and £60 per share, were also rejected without meaningful engagement, according to Castlelake's statement.

The firm manages around $38 billion in assets and has invested more than $24 billion in aviation since 2005, so this isn't a first-time buyer. Castlelake knows the sector well enough to know what the airline is worth, or at least to have a defensible view on it.

There's also an unusual sweetener built into the offer: shareholders who want to stay invested can do so, keeping a stake in easyJet as a privately held company rather than cashing out entirely. That matters because some long-term investors prefer ownership over a payout, especially if they think the airline's best years are ahead.

The regulatory obstacle that shaped the whole deal

European aviation law creates a wall that American buyers have to engineer around. Carriers based in the EU (and the UK under its own equivalent rules) must be majority owned and controlled by European nationals. An American firm simply cannot buy easyJet outright and run it under U.S. ownership the way it might acquire, say, a hotel chain or a software company.

Castlelake's solution is a partnership with two airline executives, including Peter Bellew, the former CEO of Malaysia Airlines, and Mark Breen, both of whom have held senior roles across the industry. They would provide the European ownership and control structure the rules require. Castlelake says this arrangement mirrors what other European carriers have done when bringing in outside capital.

Whether regulators accept that framing is one of the live questions hanging over the deal.

What easyJet's board is thinking, and what shareholders might think differently

EasyJet's board hasn't explained its rejections publicly. That silence gives Castlelake room to tell its own story, which is that the board is being unreasonably stubborn about a generous premium. The June 26 deadline Castlelake has set for a formal offer is designed to force the issue.

For ordinary shareholders, including retail investors who own easyJet through pension funds or ISAs, the math looks straightforward at first glance: a 57% premium is real money. But boards sometimes reject bids because they believe the company is worth more than the market currently reflects, not because they're indifferent to shareholders. Budget airlines have been recovering steadily from the pandemic-era collapse, and easyJet's management may believe the current share price understates where the business is heading.

The deeper question is what private ownership actually means for easyJet long-term. Taking the airline off public markets removes the quarterly scrutiny that listed companies face, but it also concentrates control and typically loads the business with more debt to fund the acquisition. For employees, routes, and fares, the effects of that kind of ownership shift take years to show up fully.

Castlelake has not indicated whether a fourth bid is coming. But publishing the third one publicly suggests the firm isn't walking away quietly.