A separate High Court claim by former chief content officer Llinos Griffin-Williams remains ongoing.
She was sacked over allegations of gross misconduct in 2023, in which she was accused of being drunk and verbally abusive in a work capacity to former rugby player Mike Phillips.
Griffin-Williams denies the allegations and is claiming for loss of earnings, reputational damage and injury to her feelings and health.
She also claims other individuals at S4C “about whom allegations capable of amounting to gross misconduct had been made” were not summarily dismissed as she was.
S4C previously said there had been no record of complaints about other members of staff and it continued to defend the lawsuit.