Macy Mills
Macy Mills, Head of GTM @ a16z speedrun at Andreessen Horowitz, posted 3 times in the last 90 days. That is about 0.2 posts a week; the most recent went up on Oct 19, 2026. The largest share was images (33%), with videos at 33% and multi-image posts at 33%. Everything in that window was an original post, no reshares. Andreessen Horowitz has 101 other people in the benchmark, including Guillaume Roux-Romestaing, Jordan Carver and Joe Garcia.
What format they post
Also posting at Andreessen Horowitz
Post counts are the public LinkedIn posts Imagine AI collects for this person, taken over the 90 days to Oct 19, 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.
