CBST munches OPTR and TSRX
  Optimer Pharma to be acquired by Cubist Pharma (CBST) for $10.75  per share in cash plus potential CVR of up to $5.00 per share  (shares  halted)  ( OPTR) 13.29 -0.15 : Cubist Pharmaceuticals (CBST)  and  Optimer Pharmaceuticals announced that they have signed a merger  agreement under which Cubist will acquire all of  the outstanding shares  of Optimer common stock for $10.75 per share in cash, or ~ $535 million  on a  fully diluted basis. In addition to the upfront cash payment,  each stockholder  of Optimer will receive a Contingent Value Right  (CVR), which is expected to be  publicly traded, entitling the holder to  receive an additional one-time cash  payment of up to $5.00 for each  share they own  if certain net sales of  DIFICID (fidaxomicin) are  achieved, or a total transaction value of up to $801 million on a  fully  diluted basis. The transaction has been approved by the Boards of  Directors of both  companies. 
  Terms of the contingent value  right (CVR) call for an additional one-time  cash payment of up to $5.00  per share based on  cumulative net sales of DIFICID in the U.S.  and  Canada between July 1,  2013 and Dec 31, 2015. The CVR payment will be  $3.00 if cumulative net sales exceed $250 million, $4.00 if cumulative  net sales exceed $275 million and $5.00 if cumulative net sales exceed  $300 million. It is expected that the CVR will  be listed on the Nasdaq  Stock Market. In addition, Cubist has committed to  purchase $25 million  of non-voting preferred stock of  Optimer per quarter, commencing  September 15, 2013, to address Optimer's  near-term cash needs prior to  closing. The transaction is expected to be accretive to Cubist's earnings in the first year post closing.
  Trius Therapeutics to be acquired by Cubist Pharmaceuticals (CBST) for $13.50 per share or ~$707 mln (shares halted) ( TSRX) 11.71 +0.26 : In addition to the upfront cash payment, each co stockholder will receive one  Contingent Value Right (CVR), entitling the holder to receive an additional cash  payment of up to $2.00 for each share they own  if certain commercial sales milestones are achieved. The total transaction is  valued at up to $818 mln on a fully diluted  basis. The terms of the non-tradable CVR include an additional payment of up to  $2.00 if certain sales milestones are achieved.  The CVR will entitle each co stockholder to receive $1.00 per share if net sales of tedizolid in the U.S.,  Canada and Europe are greater than or equal to  $125 million in 2016 and up to an additional  $1.00 per share, paid on a pro rata basis, for  2016 net sales between $125 million and $135 million.  |