The "Umbrella Academy" star then asked his followers to support two trans organizations, Trans Lifeline -- a support hotline -- and Trans Santa -- a campaign providing presents for trans kids in need created by "Pose" star Indya Moore.
"See you in 2021," he concluded, "Xoxo Elliot."
Just as they were when he came out, Page's comments were once again flooded with messages of support from celebrities.
"Major, huge love to you," wrote Jennifer Garner. "I wish you the happiest and safest journey with every blessing, filled with love and joy," added Sharon Stone.
His "X-Men" costar Shawn Ashmore wrote, "Hi Elliot!" with a series of emojis, including a heart. Other emoji-filled reactions came from Janelle Monae, James Gunn, Kate Mara, Ilana Glazer, Oliver Jackson-Cohen and Loni Love.
Waiting for your permission to load the Instagram Media.
"Hi friends, I want to share with you that I am trans, my pronouns are he/they and my name is Elliot," Page first revealed on December 1. "I feel lucky to be writing this. To be here. To have arrived at this place in my life."
"I feel overwhelming gratitude for the incredible people who have supported me along this journey," he continued. "I can't begin to express how remarkable it feels to finally love who I am enough to pursue my authentic self. I've been endlessly inspired by so many in the trans community. Thank you for your courage, your generosity and ceaselessly working to make this world a more inclusive and compassionate place. I will offer whatever support I can and continue to strive for a more loving and equal society."