Crown Jewel Defense

"The Crown Jewel Defense strategy in mergers and acquisitions (M&A) is when the target company of a hostile takeover sells its most valuable assets to reduce its attractiveness to the hostile bidder. The crown jewel defense is a last-resort defense since the target company will be intentionally destroying part of its value, with the hope that the acquirer drops its hostile bid".

Source: https://corporatefinanceinstitute.com/resources/valuation/crown-jewel-defense-takeover/