Hogg survived the February 14 school shoot that left 17 people dead and dozens injured. Never again MSD.
"David Hogg Rejected By Four Colleges To Which He Applied And Whites About It," she wrote. "(Dinged by UCLA with a 4.1 GPA … totally predictable given acceptance rates.)"
She was criticized for mocking a high school student who survived a mass shooting.
Hogg graduated from Stoneman Douglas in the spring and has remained active in gun control campaigns since.
CNN's Tom Kludt contributed to this story.