Activist hedge fund Sachem Head has quietly built a roughly 9% stake in UK property portal Rightmove and is urging the board to reopen sale talks, reviving a takeover storyline that went quiet after the company rejected a $8.29 billion offer from Australia's REA Group in 2024.
According to people familiar with the matter and LSEG data, the New York-based fund has already engaged with Rightmove's board. At about 9%, Sachem Head would be the company's largest shareholder, giving it significant leverage to push for change.
Why the timing matters
The pressure comes at an awkward moment for Rightmove's management. The company's shares are down roughly 36% from their August 2025 peak, even as the FTSE 100 index has climbed 18% over the same period. That kind of underperformance is exactly the gap activists use to argue that "business as usual" isn't working.
Rightmove is the UK's dominant property listing website, with a business model that generates strong cash flows from estate agents and developers who pay to advertise. But its growth has slowed as the housing market has cooled, and investors have worried about competition from newer entrants and the cyclical nature of the property market.
Sachem Head's main ask, according to people close to the matter, is a formal review of "strategic options" — a process that would include whether to re-engage potential buyers after REA's approach fell apart. The fund also sees room to lift shareholder returns by making more use of an under-leveraged balance sheet, meaning Rightmove could take on more debt to fund share buybacks or other payouts.
What a 9% stake can do
A 9% position doesn't give Sachem Head control, but it can change the boardroom math. Once a large shareholder is publicly demanding a sale review, directors have a harder time treating "no deal" as the default. Markets often translate that into an embedded takeover premium — essentially, the stock starts trading partly on the probability of a bid, not just on near-term trends in the UK housing market.
With REA already willing to pay $8.29 billion in 2024, any hint that Rightmove is running a process or reopening talks could move the shares by shifting perceived deal odds, even if no offer is on the table yet. REA, which is majority-owned by News Corp, had sweetened its bid before being turned down, and the possibility of a renewed approach has never fully disappeared.
For everyday investors, the key takeaway is that Rightmove's stock now carries an extra layer of uncertainty — and potential upside. If a sale process gets underway, the share price could jump toward what a bidder might pay. If talks stall or fail, the stock could remain under pressure, especially if the housing market stays weak.
What to watch next
Investors will be watching for any formal statement from Rightmove's board, which could come in response to Sachem Head's pressure. A "strategic review" announcement would be a clear signal that the company is open to offers. Also on the radar: whether other shareholders back Sachem Head's push, and whether REA or another suitor steps forward.
Rightmove's situation is a reminder that activist investors can reshape the outlook for a company even without taking control. For those holding the stock, the next few months could bring significant volatility — both from the sale speculation and from the broader UK property market.
As always, this is not a recommendation to buy or sell. It's a development that could affect the value of your investment, and it's worth keeping an eye on how the board responds.
