punctuation UNTIL

1)Robert, a fiercely compititive wall street executive who hated to
lose, recognised late Monday night that he was losing.
  Until then, the American-born chief executive of the British banking
giant Barclays was convinced that he could survive
  the rising calls for his ouster after accusations from regulators in
Britainand the US that Barclays had manipulated
  important global interest rates with the knowledge of senior
management.(source-Hindustan Times Thursday, July 05, 2012)

(2)Insurance companies are shying away from designing new groiups
pensions products for company employees after the IRDA
   circulated  a new draft guideline barring fresh recruits to be put
under the existing schemes. until now, several
  companies have been offering additional benefits to their employees
by parking 15% of their basic salary in group
  pension products, which is tax-friendly.(source-Hindustan Times
Thursday, July 12, 2012)

(3)Now as we head into the London Olympics, America joins the rest of
the world in the international areana, sort of. Until then,
    the games North Americans play can be taken as another example of
what Republican presidential wannable Mitt Romney describes as
    "American exceptionalism".(source-Hindustan Times Saturday, July 28, 2012)