1517 Fund — Activity | F4
1517 Fund Activity Every public signal F4 has attached to this firm, with sources and cross-entity links.
Milestone
Opened applications for Flux Capacitor 2026, providing $50k-$1M investments for moonshot scientists and unconventional founders. Flux Capacitor 2026 Program Launch
Participated in Positron AI's $51.6M Series A for inference-optimized AI hardware. Exit
Portfolio company Luminar Technologies' semiconductor division sold to Quantum Computing Inc. for $110M. Luminar Technologies
Milestone
Portfolio company Lambda raised $1.5B Series E, reaching $5.9B valuation for AI infrastructure. Lambda Labs
Investment
Invested in Loomia, an e-textile circuit technology provider for smart textiles applications. Loomia
Essay
Danielle Strachman published essay on 1517's founding journey, fund evolution, and LP transparency in venture. A Drop in the Ocean
Essay
Danielle Strachman shared the journey of building 1517 Fund, reflecting on the path from founding to Fund IV with lessons on effort, timing, and founder belief. A drop in the ocean - Building 1517
4 investments · MAY 2025 – SEP 2025 Show all Investment
Participated in Astrus's $8M seed round (co-led by Khosla Ventures) for AI-powered semiconductor design automation. Astrus
Investment
Participated in $51.6M Series A for energy-efficient AI inference hardware development. Positron AI
Investment
Participated in Rainmaker's $25M Series A led by Lowercarbon Capital for advanced cloud seeding technology. Rainmaker
Investment
Participated in $25M Series A for cloud seeding drone technology to enhance precipitation. Rainmaker Technology
New Fund
Closed Fund IV. Transition milestone marking 1517 as established firm (less than 15% of funds reach Fund IV). Fund IV
Investment
Led Miist Therapeutics's $7M funding round for biotech development. Miist Therapeutics