The star took to Instagram for the first time since the news broke last Monday.
"It's been a helluva week. I'm only sorry that I never got the chance to say goodbye to you all...the incredibly supportive, engaged, opinionated, clever and wonderfully diverse audience of Today," she wrote on Instagram.
"Thank you from the bottom of my heart for all the fun years we shared, and for welcoming me into your homes each morning," she continued. "It has been an absolute privilege."
"PS. This pic is from Karl's and my very first publicity shoot way back in May 2007," she finished. "Look at us, we were babies!!"
Lisa left the network amid reports she was earning $200,000 less than her co-host.
In a statement from Channel Nine, the network revealed they had been "unable to meet the expectations of Lisa Wilkinson and her manager."