UPDATE 1 — Activist investor Ancora pushes Big Yellow to explore sale

(Recasts throughout, adds details and background) Oct 13 (Reuters) — Activist investor Ancora Holdings has urged Britain-listed Big Yellow Group to launch a strategic review, including a potential sale of the self-storage company. A sale represents the best risk-adjusted outcome for shareholders, Ancora, which has a more than 4% stake in Big Yellow, said in a presentation on Tuesday. Ancora said Big Yellow shares, which have fallen 23.6% so far this year, trade at an "unwarranted" discount to net asset value Big Yellow did not immediately respond to a Reuters request for comment Ancora estimates Big Yellow is worth £12.36 ($16.38) per share; Its shares closed at £7.99 on Tuesday, giving the company a market value of about £1.6 billion Ancora's push comes nearly a year after Big Yellow terminated discussions with Blackstone for a takeover at an undisclosed offer price Ancora said on Tuesday Blackstone had offered Big Yellow 50% above the current stock price and that if the company were to solicit interest from parties now, a deal could likely occur at a valuation above what Blackstone offered Blackstone did not immediately respond to a Reuters request for comment on its 2025 offer f