Gigafund | Activity | F4

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Team Portfolio Raise Champions Essays

F4/Gigafund/Activity

Gigafund Activity

Every public signal F4 has attached to this firm, with sources and cross-entity links.

Types

Time range

Exit

Portfolio company xAI acquired by SpaceX in all-stock transaction valuing xAI at $250 billion.

x.ai

cnbc.comFEB 2, 2026

FEB 2, 2026

Investment

Participated in Last Energy's Series C funding round of $100M+ to develop clean, low-cost nuclear power.

lastenergy.com

galaxy.comDEC 16, 2025

DEC 16, 2025

Exit

Portfolio company Synthego acquired by Perceptive Advisors.

Synthego

Synthego Gigafund

tracxn.comJUN 26, 2025

JUN 26, 2025