Horner, who joined the workforce in 2005, led Red Bull to eight drivers’ championships and 6 constructors’ championship titles.
He was dismissed after a controversial 18 months that began when a feminine worker accused him of sexual harassment, an allegation that was made public in February 2024.
He was twice cleared of the claims, firstly after an internal investigation carried out by a lawyer, then by one other lawyer who dismissed the complainant’s appeal.
The Briton left with a £52m payout however he mentioned he felt a “real sense of loss”, and blamed Red Bull managing director Oliver Mintzlaff and Red Bull adviser Helmut Marko for his exit.
“It was all rather sudden. I didn’t really get the chance to say a proper goodbye,” he mentioned.
“I think this was a decision that was made by Oliver Mintzlaff with Helmut advising from the side-line.
“I believe finally issues modified inside the enterprise, inside the group. The founder died, and after Dietrich [Mateschitz]’s demise, I believe most likely I was deemed to have possibly an excessive amount of management.”