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PrimeStone Capital LLP, which holds approximately 7% of Gresham House Energy Storage Fund plc, has sent a public letter to the fund's board asking it to prepare for the launch of a formal sale process in September 2026.
The letter, disclosed on June 30, 2026, marks a shift from private engagement to open pressure — a deliberate escalation designed to force a board response.
For existing shareholders, a concentrated holder willing to go on record rarely does so without expecting an answer.
What PrimeStone Is Asking For A formal sale process is exactly what the phrase implies: a structured, typically banker-led solicitation of bids for a company or fund, run under a defined timeline and with a board mandate to evaluate offers.
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