Marissa Daisy Firke
Marissa Daisy Firke, CEO at Dirt at General Catalyst, posted 6 times in the last 90 days, most often company announcements. That is about 0.5 posts a week; the most recent went up on Oct 14, 2026. Most of those were text-only posts (67%), with videos at 17% and multi-image posts at 17%. By post type, company announcements lead at 40%, then event announcements at 20% and personal highlights at 20%. Everything in that window was an original post, no reshares. General Catalyst has 50 other people in the benchmark, including Andrew Arruda, Maryam Mujica and Chris Bischoff.
What format they post
Also posting at General Catalyst
- Andrew ArrudaRefactoring healthcare @Flexpa, Democratizing law @ROSSIntel, Frontier investing @ManiacVC. Co-author of “AI in Application” in 2018.43 posts
- Maryam MujicaPresident, General Catalyst Institute13 posts
- Chris BischoffCOO, GC Capital and Managing Director, General Catalyst11 posts
- Quentin Clark
Post counts are the public LinkedIn posts Imagine AI collects for this person, taken over the 90 days to Oct 14, 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.
