** Shares of healthcare communications provider SPOK.O
rise 5.5% to $10.75
** Spok says it started review of its strategic
alternatives, including sale, after getting several "indications
of interest" in buyout urn:newsml:reuters.com:*:nBw4nvYCla
** Acacia Research ACTG.O , which invests in tech and life
sciences businesses, made public earlier this week its offer to
buy SPOK for $10.75/shr urn:newsml:reuters.com:*:nL4N2Q22RA
** Spok also adopts short-term shareholder rights plan that
will trigger if a person or group buys 10% of its outstanding
stock or 20% for passive institutional investors
** Spok notes Acacia Research and its partner Starboard
Value have rapidly accumulated over 5% of its outstanding stock
** Through Thursday's close, SPOK down about 8% this year
(Reporting by Praveen Paramasivam)
((Praveen.Paramasivam@thomsonreuters.com;))