fundraise receipt · ai
frontrun flagged Gimlet Labs 153 days before its $300M Series B round
tl;dr: Gimlet Labs announced $300M Series B on Sep 4, 2026, led by Andreessen Horowitz and a16z. frontrun flagged the company on Apr 4, 2026, when it had 263 followers, 153 days before the announcement.
what Gimlet Labs raised
Gimlet Labs (@gimletlabs · gimletlabs.ai) announced $300M Series B on Sep 4, 2026, led by Andreessen Horowitz and a16z, with participation from Sapphire Ventures, Menlo Ventures, 645 Ventures, Arm, Eclipse, Emergence, Factory, Hudson River Trading, M12, OnePrime Capital, Prosperity7, QuantumLight, Samsung Ventures, Tiger Global Management, Triatomic, Wing Ventures, XTX Markets. verified against gimletlabs.ai.
An applied research lab dedicated to building next-generation AI infrastructure.
how we knew 153 days early
frontrun watches the follow graphs of 2,000+ tracked venture investors on X. on Apr 4, 2026, tracked investors began following Gimlet Labs, which had 263 followers at the time. that convergence was logged that day. the round landed 153 days later.
25 tracked investors follow Gimlet Labs today, and the account has grown to 976 followers. that count is public. which investors they are, and the day each one followed, is what the product shows.
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other rounds we called early
MNX $6.4M (153d early) · Weave Robotics $152M (153d early) · Humanoid $152M (155d early) · smallest.ai $13M (150d early) · pumpcade $5M (156d early)
data updated Sep 9, 2026 · Gimlet Labs signal page · every round we called early · trending this week