Ryan Sullivan
Ryan Sullivan, Investing & Engineering @ FirstMark at FirstMark, posted 1 time in the last 90 days. That is about 0.1 posts a week; the most recent went up on Jul 29, 2026. All of them were images. Everything in that window was an original post, no reshares. FirstMark has 14 other people in the benchmark, including Matt Turck, Beth Viner and Adam Nelson.
What format they post
Also posting at FirstMark
Post counts are the public LinkedIn posts Imagine AI collects for this person, taken over the 90 days to Jul 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.
