Mark Sheridan
Mark Sheridan, Senior Engineering Manager @ Vanta || ex-Square, ex-Spotify || Software with Impact || Dad Joke Enthusiast at Vanta, posted 1 time in the last 90 days. That is about 0.1 posts a week; the most recent went up on Sep 29, 2026. All of them were text-only posts. Everything in that window was an original post, no reshares. Vanta has 78 other people in the benchmark, including Justin Pagano, Christina Cacioppo and Scott Holden.
What format they post
Also posting at Vanta
Post counts are the public LinkedIn posts Imagine AI collects for this person, taken over the 90 days to Sep 29, 2026; reshares are left out of the post count and the format mix. Follower counts come from the last profile check. The band compares a typical post, the geometric mean of reactions on posts that have had two weeks to settle, with the Imagine AI research baseline of 20,000+ posts from B2B startups. How the benchmark is built.
