Possesives: FCC's officers or FCC officers

Which one is correct or are they both?

FCC’s officers or FCC officers

Telmex’s shares or Telmex shares?

Please someone help us quickly!!!

Hi Lucero

Context might influence my choice of one or the other. However, without any context, I would say that FCC officers and Telmex shares would be the most likely choices.
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Telmex’ shares
FCC officers/First Christian Church’s officers

IMO

Dear Amy,

Thank you so very much for your quick reply.
This is on a legal letter a lawyer is writing…would that make a difference ?

Best regards,

Lucero

Hi Lucero

I would need to see the entire sentence(s) in order to decide if the possessive form(s) might be more appropriate.
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