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Sep 4, 2025
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67 min
Episode Description
In the first episode of Offscript by Penomo, we sit down with Michael Grohmann - former Managing Director at MainFirst Bank (later Stifel) and now board member at Callirius AG - to explore the shift from traditional investment banking to Web3 and climate finance. Michael shares his journey from decades in European equity trading to building Callirius, a venture focused on turning nature into an asset class. We dive into: - What investment banking really means and how it compares to private credit - Why institutional investors move slowly, and why regulation is both the bottleneck and the safeguard - The cultural clash between Web3’s impatience and the long cycles of institutional finance - Why institutions aren’t “evil,” but essential for scaling climate-positive investments - The trillion-dollar funding gap for climate and how tokenization could unlock capital for carbon markets and beyond If you want an unfiltered look at how legacy finance, Web3, and climate finance intersect, and what it will take to mobilize $1 trillion a year for the energy transition, this is the episode to watch.


