House Judiciary reiterates to Zuckerberg that its subpoena is "continuing in nature," requiring Meta to preserve records including auto-deleting messages — this lines up with the sharp Zuckerberg spike to ~90% in early March on your chart; an active, ongoing subpoena obligation raises odds of a compliance-related hearing
Will Zuckerberg attend House Judiciary's hearing?
Source: U.S. Government document; https://judiciary.house.gov/sites/evo-subsites/republicans-judiciary.house.gov/files/evo-media-document/2026-03-16-jdj-to-meta-zuckerberg-re-preservation.pdf