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ULBI · Analysis updated Oct 29, 2026, 3:34 AM ET
Why is Ultralife Corporation (ULBI) stock moving?
Ultralife Corporation (ULBI) experienced a transformative catalyst on October 27–28, 2026, entering a definitive merger agreement to be acquired by EnerSys (ENS) in an all-cash transaction valued at $16.00 per share (~$320 million enterprise value). Following the announcement, market data shows ULBI surged from roughly $6.01 to close at $15.61 on October 28 with heavy volume. The transaction is backed by unanimous board approval and key shareholder tender agreements, funded fully by cash on hand without financing contingencies, with closing expected in Q1 2027. Trading is now anchored closely to the $16.00 cash consideration with minimal merger arbitrage spread remaining.
News behind the analysis
- EnerSys to Acquire Ultralife Corporation in a $320 Million All-Cash TransactionUltralife announced an agreement to be acquired by EnerSys for $16.00 per share in cash, valuing the company at approximately $320 million including net debt.
- EnerSys To Acquire Ultralife, Expanding Differentiated Battery TechnologiesEnerSys detailed the all-cash acquisition offering a 166% premium over Ultralife's unaffected share price, funded via cash on hand with expected synergies.
- Ultralife Stock Rockets 145% After Securing $320M Deal with EnerSysShares surged 145% following the buyout offer, with major stakeholders agreeing to tender roughly 40.3% of outstanding shares.
- Ultralife Board Unanimously Recommends Stockholders Accept Tender OfferSEC Schedule TO filings confirmed EnerSys initiated the tender offer at $16.00 per share with closing targeted for Q1 2027.
- Ultralife and EnerSys Climb After Announcing $320 Million Defense Power Tie-UpMarket commentary highlights strong strategic fit in defense power applications, sending ULBI trading volume to extreme highs near the $16 buyout price.